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Barrio Logan Nighttime Noise Study
June 2020
Commissioned by:
Acknowledgements: Maggie Weber, Senior Planner
Larry Hofreiter, Program Manager
Planning & Green Port, Planning
Preparers: Primary Authors
Daniel Wery, AICP, LEED AP, Project Manager
Jeremy Louden, Principal, Ldn Consulting
Supporting Preparers
Michael Baker International Aaron Barrall
Nicole Marotz, AICP, LEED AP Garett Peterson
Rick Hendrickson, GISP Zachary Pekin
Kevin Oliver Hilary Ellis
Siri Champion Jose Castro
Miguel Avalos
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Executive Summary The San Diego Unified Port District (the Port) commissioned the Barrio Logan Nighttime Noise Study (Study) to identify nighttime noise sources and help the Port, the City of San Diego, and maritime industry work with the community to find ways to decrease nighttime noise. Nighttime noise is a neighborhood issue that affects quality of life, including mental and physical health. The Study seeks to identify nighttime noise sources in the Barrio Logan community between the hours of 10:00 p.m. and 6:00 a.m., with a focus on 1:00 a.m. to 4:00 a.m., and to recommend measures that avoid, minimize, and/or mitigate adverse nighttime noise-generating sources.
BACKGROUND AND OVERVIEW OF THE STUDY Barrio Logan is one of the oldest and most culturally rich, urban San Diego neighborhoods and is located southeast of downtown, adjacent to the Port’s working waterfront. Barrio Logan is unique in that it operates under a 40-year-old community plan. Once planned and believed the area would convert to entirely industrial uses, the residents and commercial businesses fought to keep their community, which has strengthened and grown. However, the resulting mix of residential, commercial, and industrial uses has led to conflicts and compatibility issues, including what can be deemed an acceptable ambient nighttime noise level. For years, Barrio Logan residents and business operators have complained of excessive and disruptive noise within the community. In spring 2019, City of San Diego Councilmember Moreno formally requested the Port fund a nighttime noise study to address nighttime noise concerns in Barrio Logan.1 The purposes of the Study are to:
1. Engage with community members to understand their nighttime noise concerns.
2. Engage with industry representatives to understand nighttime operations.
3. Collect nighttime noise data.
4. Identify potential causes to changes in ambient nighttime noise and record communityconcerns and observations.
5. Clarify the regulatory framework and operations of local industry.
6. Work with residents, agencies, local businesses, and stakeholders to recommendpractical improvements and solutions.
The Port is delighted to take a leadership role on the Study to better understand the causes of nighttime disturbances and how the Port can be a better neighbor to the community by identifying tools to avoid, minimize, and/or mitigate adverse nighttime noise sources and improve the quality of life for Barrio Logan residents. The Study is intended to help the Port, the City of San Diego, and the nearby maritime industry better understand the relationship between local industry and the nighttime noise impacts affecting the neighboring community.
1 The Study was funded through the Port’s Maritime Industrial Impact Fund (MIIF). The purpose of the MIIF is to invest money in environmental concerns off tidelands within neighboring communities.
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PRIMARY NOISE SOURCES The community and industry engagement, along with the monitoring data and observations by professional noise experts, collectively indicate the most commonly reported and significant noise sources were generated by the activities listed below. Each of these noise sources is described in detail in Section 4.0, Sources of Nighttime Noise, of this Study.
Traffic on freeways and local streets: Relatively constant noise from flowing traffic onInterstate 5 (I-5) and State Route 75 (SR-75), and more variable and generally loudernoise from passing vehicles on local streets.
Rail activities: Freight train assembly (referred to as coupling) and switching operationsthat occur primarily in the San Diego Metropolitan Transit System (MTS) and BurlingtonNorthern Santa Fe (BNSF) railyards.
Rail activities: Federally mandated freight and passenger train horns and bells at each ofthe seven MTS and five BNSF road crossings in Barrio Logan.
Working waterfront operations: Noise from machinery and outdoor operations.
KEY FINDINGS AND RECOMMENDATIONS
Key Findings Based on the data collected through various noise measurements and surveys, and with an understanding of the current regulatory setting for the affected Study area, the Study concluded the following:
1. During late night hours, most areas within Barrio Logan are in compliance with theapplicable noise standards and policies most of the time, but also there are short spikesin decibels that exceed those noise limits on a frequent and regular basis. The levels thatexceeded the hourly limits of the Stationary Source Noise Ordinance resulted frompermissible spikes from required train horns and rail operations, and local road andfreeway traffic.
2. Mobile traffic noises generally comply with the 65 dB community noise equivalent level(CNEL) (24-hour weighted average) limit for residential areas.
3. Intermittent, sudden, and significantly louder than ambient noises such as horns andbells, and bangs and clanks directly from heavy freight cars and trains, create significantdisturbances but are generally compliant with current Federal Rail Authority regulations.
4. Some sources, while still compliant, have equipment and/or operations that may offeropportunities for reducing background or ambient noise over time. However, these arevery large operations with long, life-cycle equipment that can be expensive and time-consuming to modify.
5. Noise from recycling operations can be reduced through changes in hours of operationand possible enforcement of discretionary permit approvals and zoning use limitations.
6. Maritime and industrial operations comply with the current 75 decibel (dB) hourly limits.
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Recommendations Noise is cumulative, so overall noise levels experienced are a combination of multiple sources. This is typical for the most impacted areas within the Barrio Logan community. Therefore, it is anticipated that to achieve a reduction in overall noise levels, a combination of various mechanical and operational, and possibly policy and regulatory, actions will be required. Preliminary recommendations to avoid, minimize, and mitigate disruptive nighttime noises in Barrio Logan include best noise management practices that prioritize reduction of noise at the source before measures are implemented to mitigate the effects of the noise. Measures to reduce potential noise levels within the community are described in Section 6.0, Findings and Recommendations, and are summarized below.
Physical improvements to reduce and mitigate noise sources:
o Quiet zone establishment and rail crossing improvements to eliminate requiredsounding of train horns on approach to all street crossings.
o Grade separation of rail and road crossings to eliminate the required sounding oftrain horns and the crossing controls and bells at intersections.
o Road improvements, including repairs of potholes and cracks, smoother pavement,and typical traffic-calming enhancements, to reduce vehicle speed and engine andtire impact noise.
o Industrial equipment, building, and mechanical upgrades such as enclosures aroundnoisy mechanical equipment and replacement of diesel motors with electric motorsconsistent with current and future technology.
o Gates, fencing, and/or sound walls installed around outdoor operations and noisyequipment.
o General best practice building standards and improvements to be implemented aspart of commercial and industrial approvals.
Operational changes in local industry and businesses:
o Work with businesses, particularly those with outdoor operations, where feasible anddoes not impact with their contractual obligations to limit work hours during latenighttime and early morning.
Compliance with existing regulations, policies, and standards such as truck routes,hours of operation, property line noise standards, and permitted uses.
Best Management Practices and Tools:
o Clarify Noise Ordinance standards for mixed-use zones to make the maximumpermissible noise levels more clear to business/property owners, code enforcementofficers, and police so they are easier to understand, comply with, and enforce.
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Table of Contents 1.0 Approach and Understanding .......................................... 1
1.1 Scope of Study .................................................................. 1
1.2 Understanding Noise...................................................... 2
2.0 Regulatory Framework ...................................................... 5
3.0 Community Engagement & Survey ............................ 23
3.1 Community Engagement .......................................... 23
3.2 Community Noise Survey Results ........................ 24
3.3 Industry Interviews and Documentation ........... 26
4.0 Sources of Nighttime Noise .......................................... 33
4.1 Traffic .................................................................................. 33
4.2 Trains ................................................................................... 37
4.3 Stationary Sources ........................................................ 41
5.0 Noise Measurements and Analyses; Field Inspections ........................................................................... 43
5.1 Nighttime Noise Monitoring .................................... 43
5.2 Short-Term Noise Monitoring ................................. 53
6.0 Findings and Recommendations ................................. 59
6.1 Findings ............................................................................. 59
6.2 Recommendations ...................................................... 60
6.3 Afterward…………………………………………………………………68
Acronyms and Abbreviations .................................................. 69
Appendices Appendix 1: Guide to Establishing Quiet Zones –
Appendix C to 49 CFR Chapter II (10/1/18 Edition) Part 222
Appendix 2: Community Survey: Questionnaire and Results Appendix 3: Noise Monitoring Results Appendix 4: City of San Diego Noise Ordinance - 59.5.04 Appendix 5: City of San Diego Resolution R-2019-249 –
Establish Five-ton Commercial Vehicle Prohibitions in Barrio Logan
Appendix 6: Port Environmental Advisory Committee Policy (BPC Policy No. 730)
Appendix 7: Board of Port Commissioners Policy No. 725 Appendix 8: FRA Standards (49 CFR, Volume 4, Part 210)
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List of Figures Figure 1. Barrio Logan Study Area ........................................................................... 1 Figure 2. Existing Land Use, Zoning, Port Transition Zone ....................... 15 Figure 3. Zoning (Noise Ordinance Limits) ........................................................19 Figure 4. Truck Route and Prohibition Map ...................................................... 22 Figure 5. Observed Noise Locations ....................................................................25 Figure 6. Location C (National and Evans) 1-Minute Interval
Measurements, October 25 to 31, 2019 .......................................... 34 Figure 7. Location D (Harbor South of 75) 1-Minute Interval
Measurements, October 25 to 31, 2019 .......................................... 35 Figure 8. Location D (Harbor South of 75) Hourly Intervals,
October 25 to 31, 2019 ............................................................................ 35 Figure 9. Location A (Main & Beardsley) 1-Minute Intervals,
November 18 to 24, 2019 ....................................................................... 36 Figure 10. Location A (Main & Beardsley) Hourly Intervals,
November 18 to 24, 2019 ........................................................................37 Figure 11. Zoning (Noise Ordinance Limits)
and Rail Facilities ....................................................................................... 39 Figure 12. Zoning (Noise Ordinance Limits)
and Noise Monitoring Sites .................................................................. 45 Figure 13. Site A (Main Street & Beardsley) – Hourly
and 1-Minute Interval Monitoring Results ........................................ 51
List of Tables Table 1: Typical Noise Levels.................................................................................... 3 Table 2: Noise Levels Diminish with Distance .................................................. 4 Table 3: Applicable Noise Regulations, Plans, and Standards................. 5 Table 4: Traffic Noise Significance Thresholds (dB CNEL) .....................10
Table 5: City of San Diego Noise Limits ............................................................ 11 Table 6: Maximum Nighttime Noise Levels ...................................................... 15 Table 7: Junkyard/Landfill/Recycling Centers
in Barrio Logan ............................................................................................. 29 Table 8: Average Data (12 a.m. to 6 a.m. Measurements)
October 25 to November 24, 2019 ................................................... 41 Table 9. Observed Noise Levels (Hourly Measurements)
October 25 to November 24, 2019 ................................................... 45 Table 10. Short-term Noise Measurements ...................................................... 52
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1.0 Approach and Understanding 1.1 SCOPE OF STUDY The Port is proud to lead the effort to better understand the causes of nighttime disturbances in the Barrio Logan community between the hours of 10:00 p.m. and 6:00 a.m., with a focus on 1:00 a.m. to 4:00 a.m., and to recommend measures that avoid, minimize, and/or mitigate adverse nighttime noise sources. The goal of the Study is to identify potential causes of ambient nighttime noise and identify achievable actions to reduce community impacts over the long term. This Study helps establish an objective baseline of data within the community to better understand the issue and to help identify potential solutions to reduce overall noise levels experienced by residents, occupants, and visitors. The Study area is coterminous with the Barrio Logan Community Planning Area as shown below in Figure 1, Barrio Logan Study Area.
There are five main components of the Study:
1. Clarify the regulatory framework and standards governing noise in the area.
2. Conduct community engagement to record residents’ concerns and observations.
3. Conduct industry engagement to understand and document nighttime operations andnoise sources.
4. Measure and analyze nighttime noise.
5. Make recommendations to reduce and mitigate nighttime noise.
FIGURE 1. BARRIO LOGAN STUDY AREA
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1.2 UNDERSTANDING NOISE Noise is generally defined as unwanted or objectionable sound. The effects of noise on people can include general annoyance, interference with speech communication, sleep disturbance, and in the extreme, hearing impairment. The unit of measurement used to describe a noise level is the decibel (dB). Decibels are measured on a logarithmic scale that quantifies sound intensity in a manner similar to the Richter scale used for earthquake magnitudes. The human ear is not equally sensitive to all frequencies within the sound spectrum. Therefore, a method called “A weighting” is used to filter noise frequencies that are not audible to the human ear. The A scale approximates the frequency response of the average young ear when listening to most ordinary everyday sounds. When people make relative judgments of the loudness or annoyance of a sound, their judgments correlate well with the A-scale sound levels of those sounds. Therefore, the “A-weighted” noise scale is used for measurements and standards involving the human perception of noise. In this Study, all noise levels are A-weighted and “dBA” is understood to identify the A-weighted decibel. Throughout this Study, “dB” shall mean “dBA.”
Noise in our daily environment fluctuates over time. Some fluctuations are minor, but some are substantial. Some noise levels occur in regular patterns, but others are random. Some noise levels fluctuate rapidly, but others fluctuate slowly. Some noise levels vary widely, but others are relatively constant. Various noise descriptors have been developed to describe time-varying noise levels. Following are the noise descriptors most commonly used in traffic noise analysis that have been applied to the Study:
Average noise levels over a period of minutes or hours are usually expressed as dBLeq, or the equivalent noise level for that period. In effect, Leq is the steady-state soundlevel containing the same acoustical energy as the time-varying sound that actuallyoccurs during the same period. The 1-hour A-weighted equivalent sound level (Leq[h])is the energy average of A-weighted sound levels occurring during a 1-hour periodand is the basis for noise abatement criteria (NAC) used by the Federal HighwayAdministration (FHWA). The period of time average may be specified; Leq(8) wouldbe an 8-hour average; when no period is specified, a 1-hour average is assumed.
The community noise equivalent level (CNEL) is the 24-hour A-weighted averagefor sound, with corrections for evening and nighttime hours. The corrections includean addition of 5 dB to the measured sound levels in the evening hours between7:00 p.m. and 10:00 p.m. and an addition of 10 dB to the measured sound levels atnighttime hours between 10:00 p.m. and 7:00 a.m. These additions are made toaccount for the increased sensitivity during the evening and nighttime hours whensound seems louder. CNEL is applied to transportation-related noise sources (e.g.,highways, roads, aircraft and moving trains). From the calculated Leq(h), theequivalent CNEL can be derived based upon the proposed hourly operational dataand applying the evening and nighttime penalties of 5 dB and 10 dB, respectively.
Because decibels are logarithmic units, Sound Pressure Level (SPL) cannot be addedor subtracted through ordinary arithmetic. Under the decibel scale, a doubling ofsound energy corresponds to a 3-dB increase. In other words, when two identicalsources are each producing sound of the same loudness, the resulting sound level at agiven distance would be 3 dB higher than one source under the same conditions. Forexample, if one automobile produces an SPL of 70 dB when it passes an observer,
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two cars passing simultaneously would not produce 140 dB—rather, they would combine to produce 73 dB.
Percentile-Exceeded Sound Level (Lxx) represents the sound level exceeded for agiven percentage of a specified period (e.g., L10 is the sound level exceeded 10percent of the time, and L90 is the sound level exceeded 90 percent of the time).Maximum Sound Level (Lmax) is the highest instantaneous sound level measuredduring a specified period.
Human perception of noise has no simple correlation with acoustical energy. The perception of noise is not linear in terms of dB or acoustical energy. Two noise sources do not sound twice as loud as one source. It is widely accepted the average healthy ear can barely perceive a change of 3 dB, whether increase or decrease; a change of 5 dB is readily perceptible; and an increase or decrease of 10 dB sounds twice or half as loud. Therefore, when the noise level increases from a moderately quiet 60-dB conversation to 70-dB car noise, that car noise is 10 times as much pressure and energy, and twice as loud. Likewise, a truck is typically twice as loud as a car, or four times as loud as a normal conversation. Table 1, Typical Noise Levels, provides examples of common activities and the sound levels associated with those activities.
TABLE 1: TYPICAL NOISE LEVELS Common Outdoor Activities Noise Level (dB) Common Indoor Activities
--110-- Rock Band
Jet Flyover at 300 meters (1,000 feet) --100--
Gas Lawn Mower at 1 meter (3 feet) --90--
Diesel Truck at 15 meters (50 feet),
at 80 kilometers per hour (km/hr) (50 miles per hour [mph])
--80-- Food Blender at 1 meter (3 feet)
Garbage Disposal at 1 meter (3 feet)
Noisy Urban Area, Daytime
Gas Lawn Mower, 30 meters (100 feet) --70-- Vacuum Cleaner at 3 meters (10 feet)
Commercial Area
Heavy Traffic at 90 meters (300 feet) --60-- Normal Speech at 1 meter (3 feet)
Quiet Urban Daytime --50-- Large Business Office
Dishwasher in Next Room
Quiet Urban Nighttime --40-- Theater, Large Conference Room (Background)
Quiet Suburban Nighttime --30-- Library
Quiet Rural Nighttime --20-- Bedroom at Night, Concert Hall (Background)
--10-- Broadcast/Recording Studio
Lowest Threshold of Human Hearing --0-- Lowest Threshold of Human Hearing
Source: Caltrans 2013 https://dot.ca.gov/programs/environmental-analysis/noise-vibration
From the source to the receiver, noise changes both in level and frequency spectrum. The most obvious change is the decrease in noise as the distance from the source increases. The manner in which noise reduces with distance depends on the following important factors:
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ground absorption, atmospheric effects and refraction, shielding by natural and man-made features, noise barriers, diffraction, and reflection. For a point noise source, such as construction equipment, the attenuation or drop-off in noise level would be 6 dB for each doubling of unobstructed distance between the source and the receiver. For example, a noise level of 70 dB at a distance of 50 feet would drop to 64 dB at 100 feet. For a line noise source, such as vehicles traveling on a roadway, the attenuation or drop-off in noise level would be approximately 3 to 4.5 dB for each doubling of unobstructed distance between source and the receiver. For example, as shown in Table 2, Noise Levels Diminish with Distance, a noise source that measures 70 dB at a distance of 50 feet will diminish to 66 dB at 100 feet and 62 dB at 200 feet. Assuming there were no other louder noise sources, a reduction of the noise source by 10 dB (e.g., from 70 dB to 60 dB) at 50 feet will result in an equal 10 dB reduction at each of the diminished levels as the distance increases (e.g., 56 dB at 100 feet and 52 dB at 200 feet).
TABLE 2: NOISE LEVELS DIMINISH WITH DISTANCE Noise Source
Type 50 feet from Source (dB)
100 feet from Source (dB)
200 feet from Source (dB)
400 feet from Source (dB)
Point Source 70 64 58 52
60 54 48 42
Line Source 70 66 62 58
60 56 52 48
A large object in the path between a noise source and a receiver can significantly reduce noise levels at that receiver. The amount of reduction provided by this “shielding” depends on the size of the object and the frequencies of the noise levels. Natural terrain features, such as hills and dense vegetation, as well as man-made features, such as buildings and walls, can significantly alter noise levels. Walls or berms are often specifically used to reduce noise.
Also, it is important to understand noise is constantly fluctuating. While momentary peaks and spikes can be measured, regulations generally measure average noise levels, usually over 1-hour periods. Some ordinances and regulations create absolute limits on the maximum sound levels. Such standards are often reserved for special uses such as outdoor racetracks with maximum levels for the vehicle. A passing car or truck could exceed the noise ordinance limits for a moment, but the sustained or average level is the larger concern in terms of protecting and promoting a healthy work and living environment. Sustained, elevated noise levels can have measurable impacts on our health and well-being.
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2.0 Regulatory Framework There are three primary land use and regulatory jurisdictions within and adjacent to Barrio Logan: the City of San Diego (local), the Port (state), and the Navy (federal). Each operates relatively independent of the others.
The Port has jurisdiction over and governs the use of all land within the mean high tide line (Tidelands). The Port determines if a project’s construction and operation noise levels are consistent with the ordinances of the applicable member city, such as San Diego, during consistency review with the requirements of the California Environmental Quality Act (CEQA) and the discretionary project approval phase. Port projects that exceed the City’s Noise Ordinance would need to disclose such an impact as significant and unavoidable in an Environmental Impact Report, and the Board of Port Commissioners would need to adopt a Statement of Overriding Considerations (CEQA Guidelines Section 15093). Port projects are also subject to the applicable city’s building permits and the California Noise Insulation Standards.
Although Naval Base San Diego is located within the Barrio Logan Community Plan area, it is not subject to local noise policies and/or regulations. Naval Base San Diego is only subject to federal guidelines and regulations.
Table 3, Applicable Noise Regulations, Plans, and Standards, lists the various regulations, plans, and standards that are applicable to Barrio Logan.
TABLE 3: APPLICABLE NOISE REGULATIONS, PLANS, AND STANDARDSRegulation Description
Federal
Federal Railroad Administration (FRA) (49 CFR Part 210)
FRA has a federal Noise Emission Compliance Regulation governing compliance of noise emissions from interstate railroads. The FRA’s Railroad Noise Emission Compliance Regulation (49 CFR Part 210) prescribes compliance requirements for enforcing railroad noise emission standards adopted by the Environmental Protection Agency (EPA) (40 CFR Part 201). The FRA establishes standards for train warning horn loudness and duration for road crossings (96 to 110 dB), and maximum limits for moving trains (88 dB) and coupling (freight train assembly) operations (92 dB).
State
California Environmental Quality Act (CEQA)
Potential impacts associated with excessive noise and vibrations are considered under CEQA. The evaluation of potential impacts from a proposed project ensures that decision-makers and the public are aware of potentially excessive noise and vibration levels that would occur as a result of project implementation and, if available, mitigation measures to reduce them to acceptable levels. If a project is currently at or exceeds the significance thresholds for traffic noise and noise levels would result in less than a 3 dB increase, the impact is not considered significant.
California Noise Insulation Standards (California Code of Regulations, Title 24)
Title 24 establishes an interior noise standard of 45 dB for multiple unit and hotel/motel structures. If a project is located within a CNEL area with noise contours of 60 dB or greater, additional acoustical studies must be prepared that demonstrate that the design of the building will reduce interior noise to 45 dB CNEL or lower.
TABLE 3: APPLICABLE NOISE REGULATIONS, PLANS, AND STANDARDS, CONTINUED
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Regulation Description
Local
City of San Diego General Plan (Noise Element)
The Noise Element provides goals and policies to guide compatible land uses and incorporate noise attenuation measures for new uses to protect people living and working in the City from an excessively noisy environment. The City’s goal is controlling noise to acceptable levels at its source. However, when this is not feasible, the City applies additional measures to limit the effect of noise on future land uses, which include spatial separation, site planning, and building design techniques that address noise exposure and the insulation of buildings to reduce interior noise levels. The General Plan considers single-family and multifamily uses normally compatible in areas up to 65 dB CNEL. Although not generally considered compatible, residential uses are conditionally allowed in areas up to 75 dB with noise attenuation in areas affected primarily by motor vehicle traffic noise with existing residential uses.
The City of San Diego Noise Abatement and Control Ordinance (Municipal Code Section 59.5.0101 et seq.)
The City regulates noise through the City of San Diego Municipal Code, Chapter 5, Article 9.5, Noise Abatement and Control. The Noise Ordinance provides sound level limits between adjacent properties and zoning boundaries and construction noise limits.
Federal Noise Regulations
Federal Railroad Administration
As noted in Table 2, the Federal Railroad Administration (FRA) regulates noise levels associated with the railways and railway activities. The MTS and BNSF railways are not subject to local noise policies or regulations by the Port or City. Moving rail cars and coupling (freight train assembly) activities are subject to FRA standards of 88 dB and 92 dB, respectively.
The Code of Federal Regulations (CFR) Title 49, Part 222 requires a locomotive engineer to sound the train horn when approaching a public highway-rail grade crossing (typically a location where a roadway crosses a train track at the same grade). This rule also specifies the duration, pattern, and volume level of the horn. Trolley and freight locomotives are required to sound their warning horns and bells for a minimum of 15 to 20 seconds when approaching an at-grade road crossing. The minimum sound level is 96 dB. The maximum volume level for the train horn is 110 dB. Each at-grade crossing is required to have bells to warn vehicles and pedestrians of oncoming trains. Each bell is required to generate a minimum of 70 dB at approximately 50 feet. For most crossings, there is one such bell for each actuated crossing gate. The bells ring constantly during the approach and exit of the train through the crossing. This may be several minutes depending on the length and speed of the train. For example, local BNSF freight trains are often over 5,000 feet in length and travel about 10 miles an hour (15 feet per second). Such a train would require roughly 5 minutes to cross the intersection.
The FRA also includes provisions for the creation of “quiet zones” whereby the required sounding of train horns is eliminated where equivalent at-grade crossing safety can be demonstrated, typically through enhanced crossing protections, or supplemental safety measures at at-grade intersection crossings.
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A quiet zone must be at least one-half-mile long and contain one or more grade crossings. The six rail crossings in Barrio Logan are approximately 2.5 miles in length. For Barrio Logan, if the community is interested in pursuing a “quiet zone” designation, the agencies that would be involved in the creation of a quiet zone would include the City of San Diego, San Diego Association of Governments (SANDAG), MTS, BNSF, North County Transit District (NCTD), California Public Utilities Commission (CPUC), and FRA.
Often, cities already have existing supplemental safety measures, as defined in the FRA Train Horn Rule (CFR Title 49 Part 222), to satisfy this requirement. However, the City of San Diego does not have these supplemental measures at all crossings, so additional installation would be necessary prior to attaining approval of the quiet zone. These measures may include, but are not limited to, four-quadrant gates that fully block vehicular traffic from entering the crossing, or gates with raised medians or other channelization devices (e.g., fencing).
Implementation of a quiet zone is intended to reduce noise associated with train horns, but it should be noted that noise would not be fully eliminated due to two important caveats:
Quiet zones do not apply to stationary bells and horns mounted at crossing locations.
Trains in quiet zones may still sound their horns in emergencies per FRA regulationsor at the discretion of the train operator.
As such, it is possible the supplemental safety measures required for implementation of a quiet zone may result in noise increases emanating from the crossings as a result of the addition of grade-crossing signal assemblies or stationary horns. However, the rail lines in Barrio Logan are bordered by industrial and commercial uses and buildings. Residential uses are, with exception of the Mercado Apartments on the north side of Main Street, generally 500 or more feet from the rail lines. Therefore, trading the sound of additional crossing bells at 70 dB for the entire period while the train approaches and exits the street crossing (possibly several minutes depending on the length and speed of the train) for elimination of the much louder (96 to 110 dB) but shorter duration (horns) would appear to be beneficial to the community.
The process to establish a quiet zone is fairly direct and simple. One involved agency must initiate the process. Notification to all involved agencies is provided and coordination is initiated. This is typically done as part of a feasibility study and extensive coordination between the agencies. The FRA has published a guide to establishing quiet zones (see Appendix 1 for 49 CFR Chapter II, Part 222, Appendix C). The following are the key steps and requirements:
1. Written Notice. The public authority must provide a written Notice of Intent to therailroads that operate over the proposed quiet zone, to the state agency responsiblefor highway and road safety, and to the CPUC, which is responsible for grade crossingsafety.
2. Identify Crossings. Determine all public, private, and pedestrian at-grade crossingsthat will be included within the quiet zone. There are 12 (7 MTS and 5 BNSF) crossingsin Barrio Logan.
3. Half-mile Minimum Zone Length. Ensure the quiet zone will be at least one-half milein length. The Barrio Logan zone is approximately 2.5 miles long.
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4. Crossing Conditions Inventory Form and Inspection. A complete and accurateGrade Crossing Inventory Form must be on file with the FRA for all crossings (public,private, and pedestrian) in the quiet zone. An inspection of each crossing in theproposed quiet zone should be performed and the Grade Crossing Inventory Formsupdated, as necessary, to reflect the current conditions at each crossing.
5. Crossing Safety Devices. Every public crossing in the quiet zone must be equippedwith active warning devices comprising both flashing lights and gates. The plans forthe quiet zone may be made assuming that flashing lights and gates are at all publiccrossings; however, the quiet zone may not be implemented until all public crossingsare actually equipped with the flashing lights and gates.
The CPUC must approve the design of all rail crossings. Pursuant to CPUC General Order 88-B, if all interested parties, including the CPUC, agree to the terms of the rail crossing design, then an informal authorization process may be used that expedites the approval process. However, if an interested party does not provide written agreement for the proposed rail crossing design, a formal application would be required to modify the rail crossing, a process for which the CPUC may hold hearings to analyze and discuss the safety of the proposed rail crossing design. In this case, the CPUC may impose additional requirements for the rail crossing.
The creation of quiet zones is generally deemed exempt from local ordinances and state environmental regulations as a part of maintenance and operations of the national railroad system.2
State Noise Standards Title 24 of the California Code of Regulations, also known as the California Building Standards Code, establishes building standards applicable to all occupancies throughout the state. The code provides acoustical regulations for exterior-to-interior sound insulation. Title 24 regulations state that interior noise levels generated by exterior noise sources shall not exceed 45 dB with windows closed in any habitable room for residential use. If a project is located within a CNEL area with noise contours of 60 dB or greater, additional acoustical studies must be prepared that demonstrate the design of the building will reduce interior noise to 45 dB CNEL or lower.
Local Policies, Standards, and Regulations
Port of San Diego – Subject to City Building Code and applies San Diego Noise Ordinance Standards as part of CEQA and Coastal Permitting Authority
Current Port operations adjacent to the Barrio Logan community primarily consist of maritime and industrial activities. Noise associated with these activities includes various types of outdoor mechanical equipment, large diesel-powered cranes with warning signals, and deliveries by truck and rail. The noise levels associated with these activities vary. The City of San Diego does not have land use authority over Port property; however, the Port
2 Project Study Report, Middletown-Old Town San Diego Quiet Zone, March 14, 2019, pages 1-2, 20.
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applies the City’s Noise Ordinance requirements to development as part of CEQA analyses and determinations associated with Coastal Development Permits issued by the Port.
Transition Zone Policy3
While not a regulation, in June 2008, the Port adopted a Transition Zone Policy that establishes a long-term strategy to minimize land use conflicts between industrial and residential uses around the Port properties (see Board of Port Commissioners Policy No. 725 [Appendix 7]). The purpose of this policy is to provide a transition from maritime industrial lands to adjoining residential areas by establishing general guidelines that encourage the creation of transition zones that would host compatible land uses. The transition zones help balance the needs of different uses of the waterfront while also promoting the goals and objectives of adjacent community planning areas. Typical land uses within transition zones include office space, parks, greenbelts, parking, and maritime administrative office facilities. The size and width of transition zones vary based on existing community plans, city development plans, existing structures, and zoning.
According to the Transition Zone Policy, a transition zone should adhere to the following key principles:
Provide mandated separation between industrial and residential land uses,safeguarding the environmental health of the regional neighborhoods and residents.
Protect and enhance the existing and prospective operations of the businessesgoverned by City plans, Community Group plans, and the Port Master Plan to includevisitor-serving, commercial, retail, industrial, working-waterfront, and maritime-relatedjob-producing industries.
Only permit uses that do not pose a health risk to sensitive receptor land usesadjacent to or in near proximity to the Port’s industries.
City of San Diego General Plan
As stated previously, the Port relies on the City of San Diego noise regulations within the City of San Diego General Plan and the City of San Diego Noise Ordinance, which implements the City’s General Plan Noise Element. The City General Plan provides policies that guide future growth, while improving the City’s quality of life. The Noise Element is incorporated in the General Plan and provides information, goals, and policies to guide compatible land uses and the incorporation of noise attenuation measures for new uses to protect people within the City from an excessive noise environment. The Noise Element presents Land Use – Noise Compatibility Guidelines for the compatibility of various land uses with different noise exposures, defined by using the Community Noise Equivalent Level (CNEL). The Element defines three different tiers of compatibility: (1) Compatible, (2) Conditionally Compatibility, and (3) Incompatible. This compatibility is described in the City of San Diego’s Table NE-3 (not reproduced herein). As part of the table, interior noise standards are provided for certain noise-sensitive land uses to ensure adequate exterior-to-
3 In December 2019, the California Air Resources Board (CARB) prepared a draft Freight Handbook that similarly recommends a transition zone (500 feet) between freight rail lines and residential uses to avoid adverse air quality impacts while enabling this critical service to continue to operate.
Page 10
interior noise reduction is provided if these uses are located within “Conditionally Compatibility” noise environments.
City of San Diego – Noise Ordinance and Zoning Ordinance
The City of San Diego Noise Ordinance (Municipal Code Section 59.5.04) directly limits noise emissions but only applies to fixed operational, non-mobile noise sources. Nighttime noise limits range by zone type from 40 dB for single-family residential zones to 60 dB for commercial and 75 dB for industrial zones. Mobile sources, such as traffic on roads and highways, are addressed as a land use compatibility issue in the General Plan Noise Element, and limits are provided as CNEL. Residential areas are considered compatible with a 65 dB CNEL. Generally, the 65 dB CNEL is a constraint on newly proposed residential uses rather than a restriction on or requirement to reduce the noise from mobile sources. New residential developments in areas with 65 CNEL or greater need to demonstrate they can provide outdoor residential areas of 65 dB or less and achieve indoor levels of 45 dB or less.
Pursuant to Municipal Code Section 59.5.0401, it is unlawful for any person to cause noise by any means so that the one-hour average sound level exceeds the applicable limit given in Table 5, City of San Diego Noise Limits, at any location in the City on or beyond the boundaries of the property on which the noise is produced. Exceedance of the noise levels listed in Table 5 is considered a potentially significant environmental impact. As stated in Section 59.5.0401(b), the sound level limit at a location on a boundary between two zoning districts is the arithmetic mean of the respective limits for the two districts.
TABLE 5: CITY OF SAN DIEGO NOISE LIMITS Land Use Time of Day 1-Hour Average Sound Level (decibels)
Single Family Residential 7 a.m. to 7 p.m. 7 p.m. to 10 p.m. 10 p.m. to 7 a.m.
50 45 40
Multi-family Residential (up to a maximum density of 1/2000)
7 a.m. to 7 p.m. 7 p.m. to 10 p.m. 10 p.m. to 7 a.m.
55 50 45
All Other Residential 7 a.m. to 7 p.m. 7 p.m. to 10 p.m. 10 p.m. to 7 a.m.
60 55 50
Commercial 7 a.m. to 7 p.m. 7 p.m. to 10 p.m. 10 p.m. to 7 a.m.
65 60 60
Industrial or Agricultural Any time 75
A particular regulatory weakness for the Barrio Logan community is the failure of the City’s Noise Ordinance to recognize the mixed-use zones that predominate in Barrio Logan. Discrete standards exist for residential, commercial, and industrial use zones, including transitions between such use zones. However, with one exception noted below, the City’s Noise Ordinance fails to address or regulate the impacts of noise sources between these same individual uses which exist side-by-side within the same mixed-use zones which are so prevalent in Barrio Logan. Figure 2, Existing Land Use, Zoning, Port Transition Zone on
Page 11
page 13, illustrates the mix and proximity of single-family, multifamily, commercial and industrial uses, often on very small lots.
For example, it is not clear whether an industrial use next to a single-family residence in the Barrio Logan Planned District (BLPD)-B mixed-use subdistrict, which allows single-family, multifamily, and heavy industrial uses, would be subject to the 75 dB around the clock noise limit for industrial uses, the 40 dB for the adjacent single-family residence, or the 60 dB average of the two.
The noted exception is in the BLPD Redevelopment Subdistrict which expressly states:
“All industrial activity shall be located within an enclosed building. No use, activity, nor process shall produce vibrations, noxious odors, or noises that are perceptible without instruments by the average person at the property lines of a site.” (152.0317(g))
No “perceptible” noise is a very high standard and is limited to the northwest portion of Barrio Logan.
For the purposes of this Study, noise limits were assumed for each of the three mixed-use BLPDs by applying the same arithmetic mean of the noise limits established in Municipal Code Section 59.5.0401.(b) that would be applicable to each of the primary permitted uses within each district as is required between single-use zones. For example, the BLPD Redevelopment Subdistrict permits a mix of residential, commercial, and light industrial uses. The assumed nighttime standard is 60 dB, which is the average of the 45 dB for multifamily residential, 60 dB for commercial, and 75 dB for industrial zones. Similarly, the BLPD-B zone also permits a mix of residential, commercial, and industrial uses. The BLPD-A zone is primarily a residential zone but allows pre-existing commercial and light industrial uses in existence before the effective date of the ordinance to remain. New or expanded commercial and industrial uses in BLPD-A are prohibited.
Within the BLPDs, three recycling facilities exist and are regulated by the City LDC, as Small and Large Processing Plants. The IMS Recycling facility on Boston Avenue is located in the BLPD-B zone and is subject to a 60-dB limit, at the property line. The other two facilities are each located in the BLPD-D zone and are subject to a 75-dB limit, at the property line. These facilities all required Neighborhood Use Permits (NUP – Section 141.0620(f)), which is required when a use is permitted in a neighborhood, but may cause negative impacts to the surrounding neighborhood. The NUP is reviewed and processed by city staff and its intent is to minimize potential negative impacts caused by development, to surrounding properties (e.g., noise and odors). Through the NUP process, the city may establish use-specific operational and site standards to protect, mitigate, and promote compatibility with the surrounding uses. Facilities subject to a use permit would be required to conform with the specific operating restrictions of the permit, including noise restrictions. Additionally, there are other uses in Barrio Logan that required the issuance of either a Limited Use Permit or a Conditional Use Permit. The purpose of these permit types matches those of the NUP.
The Noise Ordinance is applied as part of the approval of discretionary development projects whereby projects will be evaluated against the limits to determine potential environmental impacts. For existing uses, the Noise Ordinance is enforced through complaints. Complaints may be made to the City of San Diego Code Enforcement division of the Development Services Department (619-236-5500; https://www.sandiego.gov/development-
Page 12
services/code-enforcement). Complaints can also be completed on a form and emailed to the department (https://www.sandiego.gov/sites/default/files/legacy/ced/pdf/requestinvestigationen.pdf).
Code Enforcement works normal business hours. Responses are prioritized by both Code Enforcement and the Police Department based on risks to health and safety. Noise complaints typically do not get an immediate response. Nonetheless, reporting and documentation of the complaint and noise events are important to creating an administrative record for future enforcement and action. Code Enforcement has a specific category and complaint form for noise. (https://www.sandiego.gov/development-services/code-enforcement)
A case will be opened, prioritized (https://www.sandiego.gov/development-services/code-enforcement/priority-cases), and assigned to staff within one business day. Research is conducted to determine existing approvals and conditions. Most cases warrant inspections, which are then scheduled with the responsible party. If an inspection reveals code violations, staff will determine the appropriate remedy. This may include the issuance of a citation or notice. In most cases, the person responsible for a violation is given an opportunity to voluntarily comply and correct the situation. Once the deadline in the notice has expired, the owner or responsible person may be subject to one or more of the actions below:
Civil Penalties – May be assessed up to a daily maximum amount of $10,000 and upto a total maximum amount of $400,000.
Judicial Remedies – The City Attorney can file criminal or civil cases against theresponsible party or parties.
Complaints to the Code Enforcement division can be reviewed online (https://aca.accela.com/SANDIEGO/Default.aspx). As of January 2020, there were more than 14,000 complaints to Code Enforcement since January 2017; 3,130 are active cases, meaning that over 11,000 have been closed. A little more than 300 were classified as Noise – Other Nuisance (not dogs). There were 150 total cases in the 92133 zip code, which includes Barrio Logan and Logan Heights. Of these, 68 are active cases. There were eight noise complaints other than dogs and four cases that were non-residential sources and nighttime. Only one active case involved noise (illegal auto repair on residential property). There were zero recorded complaints regarding industrial, maritime, trains, or horns.
Another option is to call the non-emergency number of the Police Department (619-531-2000) if the noise is occurring after business hours. If the noise has ceased by the time the officers arrive, they cannot take enforcement action unless one is willing to sign a complaint. Mediation is an alternative solution for ongoing conflicts with neighbors. In mediation, disputing parties meet with trained, impartial mediators to resolve their problems. Neighbors interested in mediation should contact the National Conflict Resolution Center at (619) 238-2400.
Page 13
City of San Diego CEQA Thresholds – Traffic Noise
The City of San Diego’s CEQA Significance Determination Thresholds4 outline the criteria and thresholds used to determine whether project impacts are significant. The purpose of the thresholds is to assist City of San Diego staff, project proponents, and the public in determining whether, based on substantial evidence, a project may have a significant effect on the environment under Section 21082.2 of CEQA, and whether, therefore, the environmental impact requires mitigation. A significant environmental impact related to traffic noise would occur if the project would expose people to transportation noise levels that exceed the adopted sound level limits as presented in the City’s Significance Determination Thresholds and as identified in Table 4, Traffic Noise Significance Thresholds.
TABLE 4: TRAFFIC NOISE SIGNIFICANCE THRESHOLDS (dB CNEL) Structure/Proposed Use That Would Be Impacted
by Traffic Noise Interior Space Exterior
Useable Space1 General Indication of Potential
Significance
Single-family detached 45 dB 65 dB Structure or outdoor useable area is <50 feet from the center of the closest (outside) lane on a street with existing or future ADTs >7,500
Multi-family, school, library, hospital, day care center,
hotel, motel, park, convalescent home
Development Services Department
ensures 45 dB pursuant to Title 24
65 dB
Office, church, business, professional uses n/a 70 dB
Structure or outdoor useable area is <50 feet from the center of the closest lane on a street with existing or future ADTs >20,000
Commercial, retail, industrial, outdoor
spectator sports uses n/a 75 dB
Structure or outdoor useable area is <50 feet from the center of the closest lane on a street with existing or future ADTs >40,000
Source: City of San Diego CEQA Significance Determination Thresholds, 2016. ADT = average daily traffic; dB = decibel 1. If a project is currently at or exceeds the significance thresholds for traffic noise described above and noise levels would
result in less than a 3 dB increase, then the impact is not considered significant.The Noise Element of the General Plan specifies compatibility guidelines for different categories of land use. Please refer to the Noise Element for more details.
4 City of San Diego, 2016. https://www.sandiego.gov/sites/default/files/july_2016_ceqa_thresholds_final_0.pdf
IH-2-1
Tenth AvenueMarine Terminal
Naval StationSan Diego
San DiegoBay
City ofCoronado
SAN DIEGO
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Source: SanGIS (Land Use, Zoning, Parcels, Study Area) Port of San Diego: (Tidelands, Transition Zone, Ocean) USGS: (Streams)
Study Area
ZoningAutomobileDealership
Warehousing;Wholesale Trade Office Single Family
ResidentialFire/Police Station;Jail/PrisonSchools/ReligiousFacilitiesUndeveloped LandOpen Space/RecreationWater
Health CarePublic Services
TransportationMulti-FamilyResidential
Hotel/Motel/GroupQuartersRail
Service StationMilitary
Mixed Use
Communicationsand Utilities
Land Use Current (2018)
Commercial
Industrial
Marine TerminalJunkyard/Dump/Landfill
PortTransitionZoneTidelandsBoundaryRail Lines
BLPD-D
5
5
15
BLPD-B
75
Existing Land Use, Zoning, Port Transition ZoneBarrio Logan Nighttime Noise Study
CESA
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HAVE
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IH-2-1
Tenth AvenueMarine Terminal
Naval StationSan Diego
San DiegoBay
City ofCoronado
SAN DIEGO
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ALLEY
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EA
RL
ST
ALLEY
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REG
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ALLEY
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LO
OK
AV
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CLINTON ST
ALLEY
ALLEY
GREELY AV
MARTIN AV
SUPERIOR ST
VALLE AV
ALLEY
ALLEY
TEAK ST
FLORENCE ST
HEMLOCK ST
ALLEY
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SICARD
ST
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AS
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SCHLE
Y
ST
CONVENTIONW
Y
RA
VEN
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RO
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hol la
s Cre
ek
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2/10
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H:\P
DAT
A\1
7426
7\G
IS\M
XD
\Bar
rioLo
gan
LUZo
ning
Tide
Tran
sKO
.mxd
Source: SanGIS (Land Use, Zoning, Parcels, Study Area) Port of San Diego: (Tidelands, Transition Zone, Ocean) USGS: (Streams)
Study Area
ZoningAutomobileDealership
Warehousing;Wholesale Trade Office Single Family
ResidentialFire/Police Station;Jail/PrisonSchools/ReligiousFacilitiesUndeveloped LandOpen Space/RecreationWater
Health CarePublic Services
TransportationMulti-FamilyResidential
Hotel/Motel/GroupQuartersRail
Service StationMilitary
Mixed Use
Communicationsand Utilities
Land Use Current (2018)
Commercial
Industrial
Marine TerminalJunkyard/Dump/Landfill
PortTransitionZoneTidelandsBoundaryRail Lines
BLPD-D
5
5
15
BLPD-B
75
Existing Land Use, Zoning, Port Transition ZoneBarrio Logan Nighttime Noise Study
CESA
RCH
AVE
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Figure 2. existing Land use, Zoning, Port transition Zone
Page 15
Page 16
THIS PAGE INTENTIONALLY LEFT BLANK for double-sided printing
Page 17
City of San Diego Zoning – Barrio Logan Planned District Zone
Most of Barrio Logan is located within a BLPD zone. There are five BLPD subdistricts: Redevelopment, A, B, C, and D, each with a different mix and emphasis of permitted uses.
1. The Redevelopment subdistrict is a truly mixed-use zone of residential, commercial,and industrial uses with special development standards to maintain the small lot anddiversified character.
2. Subdistrict A is a multifamily zone that allows commercial and industrial uses thatexisted prior to the effective date of the ordinance (7/5/1983) to remain.
3. Subdistrict B is a mixed-use heavy industrial and residential zone.
4. Subdistrict C is a purely single-family and multifamily residential zone.
5. Subdistrict D is an exclusively heavy industrial and maritime use zone, and residentialuses are prohibited.
There are three other applicable zones in Barrio Logan: the IL-3-1 Light Industrial, IH-2-1 Heavy Industrial, and RM-3-9 Multi-family.
Table 6, Maximum Nighttime Noise Levels, shows the applicable City Noise Ordinance maximum late nighttime noise levels for each BLPD subdistrict and standard zones in Barrio Logan. Figure 3, Zoning (Noise Ordinance Limits), identifies the zones and the applicable Noise Ordinance limits.
TABLE 6: MAXIMUM NIGHTTIME NOISE LEVELS Existing Study
Area Zones Primary Zone Uses
Noise Ordinance Limits
1-Hour Maximum dB (10:00 p.m. to 7:00 a.m.)
BLPD – Redevelopment
Single/multi-family Commercial Limited Light Industrial Mixed use
60 dB1
(Average of 45 Residential, 60 Commercial, and
75 Industrial)
BLPD – A Single/multi-family IL-3-1 Light Industrial uses
that existed prior to 7/5/1983
451
(52.5 dB adjacent to Commercial uses, 60 dB adjacent to Light Industrial uses in existence prior to 7/5/1983)
BLPD – B Single/multi-family IH-2-1 Heavy Industry
60 dB1
(45 Multifamily and 75 Industrial)
BLPD – C Single/multi-family 45 dB1
BLPD – D IH-2-1 Heavy Industry Waterfront Dependent 75 dB
IL-3-1 Light Industrial 75 dB
IH-2-1 Heavy Industrial 75 dB
RM-3-9 Multi-family 50 dB
1 The City’s Noise Ordinance does not contemplate or directly apply to mixed-use zones. For the purposes of this Study, thebase maximum noise limit for each BLPD subdistrict was set by applying the arithmetic mean principle of Municipal Code Section 9.5.040 for opposing land use districts to the primary permitted uses of each BLPD zone. A 45 dB level was assumed as the limit for all residential uses as the average of 40 dB for single family, 45 dB for multifamily up to 22 dwelling units per acre (du/acre), and 50 dB for other (i.e., > 22 due/acre). It is assumed that Subdistrict A will have a maximum of 45 dB for the multifamily uses, except where adjacent to nonresidential uses in existence before the effective date of the ordinance (7/5/1983) where an averaged level of 52.5 dB (Commercial), and 60 dB (Industrial) would apply in the same manner as adjacent zones.
Page 18
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Tenth AvenueMarine Terminal
Naval StationSan Diego
San DiegoBay
City ofCoronado
SAN DIEGO
NATIONAL CITY
PortTidelands
MAIN ST
MAIN ST
HARBOR DR
NATIONAL AV
HARBOR DR
TARAW
A RD
WABASH
BL
COLTON AV
RECREATION WY
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S 3
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ISS
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04THST
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COMMERCIAL ST
PARK BL
DALBERGIA ST
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MAIN ST
S 4
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TOMPKINS ST
S 2
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19
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BOUGAINVIL
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E 02ND ST
T ST
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BROAD AV
S P
AR
DEE S
T
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NA
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NA
L C
ITY
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NA
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T
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14
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CANDLESS
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T
20
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V
21
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BR
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T
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16
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ALLEY
WEBSTER AV
Z ST
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NEWTON AV
36TH
ST
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VALLE AV
LOGAN AV
EA
RL S
T
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NEWTONAV
SILKTREE TR
MARTIN AV
S G
REG
OR
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T
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PRIVATE RD
ALLEY
GAMMA ST
DELTA ST
ALLEY
BOSTON AV
ALPHA ST
EVERETT AV
SO
UTH
LO
OK
AV
VALLEY PL
CLINTON ST
ALLEY
ALLEY
GREELY AV
MARTIN AV
SUPERIOR ST
VALLE AV
ALLEY
ALLEY
TEAK ST
FLORENCE ST
HEMLOCK ST
ALLEY
SUPERBA ST
SICARD
ST
CROSBYRD
AD
A S
T
SCHLE
Y
ST
CONVENTION WY
RA
VEN
SC
RO
FT
AV
S. Las Chollas Creek
Las C
hol la
s Cre
ek
° 0 1,000 2,000500Feet
2/20
/202
0 JN
H:\P
DAT
A\1
7426
7\G
IS\M
XD
\Zon
ingN
oise
Ord
inan
ceK
O.m
xd
Source: SanGIS (Land Use, Zoning, Parcels, Study Area) Port of San Diego: (Tidelands, Transition Zone, Ocean) USGS: (Streams)
Zoning (Noise Ordinance Limits)Barrio Logan Nighttime Noise Study
CESA
R C
HAVE
Z PY
Redevelopment Subdistrict (60 dB)
Subdistrict D (75 dB)
ZoningStudy Area
Port TidelandsTidelands Boundary
Tenth Avenue Marine TerminalNaval StationSan Diego
Parcels
- Residential (single/multi-family)- Residential (single/multi-family)
- Uses permitted in IL-3-1 that existed prior to 7-5-1983
Central City Planned District
IH-2-1 (75 dB)
IL-3-1 (75 dB)
RM-3-9 (50 dB)
- Residential (single/multi-family)- Commercial Uses- Commercial/ Limited light industrial- Mixed use encouraged
Subdistrict A (45 dB)
- Uses permitted in IH-2-1
- Residential (single/multi-family)- Uses permitted in IH-2-1 except chrome plating
Subdistrict B (60 dB)
Subdistrict C (45 dB)
75
5
5
15
Tenth AvenueMarine Terminal
Naval StationSan Diego
San DiegoBay
City ofCoronado
SAN DIEGO
NATIONAL CITY
PortTidelands
MAINST
MAINST
HARBORDR
NATIONAL AV
HARBORDR
TARAW
ARD
WABASH
BL
COLTON AV
RECREATION WY
HARBOR DR
S3
8T
HS
T
FRA
NC
ISS
T
IMPERIAL AV
S2
8T
HS
T04THST
S3
0T
HS
T
I-5
SB
NATIONAL AV
S2
6T
HS
T
E 04TH ST
DOYL
EST
L ST
BAY FRONTST
S3
6T
HS
T
RIGEL
ST
SAM
PSON
ST
I-5
NB
S3
2N
DS
T
LAB
ON
WY
05TH
AV
OCEAN VIEW BL
13
TH
ST
COMMERCIAL ST
PARKBL
DALBERGIAST
S3
9T
HS
T
LOGAN AV
MAIN ST
S4
0T
HS
T
TOMPKINS ST
S2
9T
HS
T
BEAR
DSL
EYST
OS
BO
RN
ST
S16
THST
LOGANAV
GILMORE ST
MARINE VIEW AV
ALLEY
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ACACIA GROVE WY
TO
NY
GW
YN
ND
R
BIRCHST
KEARNYAV
EPSILON ST
33R
DST
BA
V
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ELL
DR
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RDST
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EEST
WEBSTER AV
SEV
ANS
ST
CLAY AV
24
TH
ST
25
TH
ST
26
TH
ST
27
TH
ST
S3
3R
DS
T
28
TH
ST
29
TH
ST
SB
OU
ND
AR
YST
30
TH
ST
31
ST
ST 32
ND
ST
BOSTON AV
BRY
AN
TST
22
ND
ST
E 03RD ST
COTTONWOOD
ST
19
TH
ST
DURANT ST
S3
7T
HS
T
17
TH
ST
PARDEE PL
L ST
ALLEY
ATTU
RD
S3
5T
HS
T
NORDICA AV
RO
OSE
VELT
AV
SEV
ANS
ST
HARDING AV
FRANKLIN AV
BAY AV
12
TH
AV
PUEBLO ST
S4
0T
HS
T
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AV
35
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ST
S3
3R
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PA
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ST
06
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AV
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S3
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15
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S39TH
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NS
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ST
THOR
ST
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JULIANAV
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B
OLIV
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OO
DTR
WODEN
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ALLEY
L ST
BOUGAINVIL
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ACACIAST
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T ST
HARRISONAV
BROAD AV
SP
AR
DEE
ST
ALLEY
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NA
TIO
NA
LC
ITY
BL
FRANKLINAV
MARI
NA
PARKWY
GILETTE ST
L ST
BELT ST
ALLEY
GO
OD
YEA
RS
T
INCH
ON
RD
14
TH
ST
NEWTON AV
MC
CANDLESS
BL
Z ST
BOSTON AV
PAUNAC
KST
20
TH
ST
AA
V
21
ST
ST ALLEY
10THAV
MIL
BR
AE
ST
BLA
IRC
T
BU
RN
SC
T
ALLEY
IRVINGAV
16
TH
ST
NEWTON AV
FRANKLIN AV
ALLEY
WEBSTER AV
Z ST
BETAST
ALLEY
NEWTON
AV
36TH
ST
ALLEY
VALLE AV
LOGAN AV
EA
RL
ST
ALLEY
NEWTONAV
SILKTREE TR
MARTIN AV
SG
REG
OR
YS
T
ETA ST
PRIVATE RD
ALLEY
GAMMA ST
DELTA ST
ALLEY
BOSTON AV
ALPHA ST
EVERETTAV
SO
UTH
LO
OK
AV
VALLEY PL
CLINTON ST
ALLEY
ALLEY
GREELY AV
MARTIN AV
SUPERIOR ST
VALLE AV
ALLEY
ALLEY
TEAK ST
FLORENCE ST
HEMLOCK ST
ALLEY
SUPERBA ST
SICARD
ST
CROSBYRD
AD
AS
T
SCHLE
Y
ST
CONVENTIONW
Y
RA
VEN
SC
RO
FT
AV
S. Las Chollas Creek
Las C
hol la
s Cre
ek
° 0 1,000 2,000500Feet
2/20
/202
0JN
H:\P
DAT
A\1
7426
7\G
IS\M
XD
\Zon
ingN
oise
Ord
inan
ceK
O.m
xd
Source: SanGIS (Land Use, Zoning, Parcels, Study Area) Port of San Diego: (Tidelands, Transition Zone, Ocean) USGS: (Streams)
Zoning (Noise Ordinance Limits)Barrio Logan Nighttime Noise Study
CESA
RCH
AVE
ZPY
Redevelopment Subdistrict (60 dB)
Subdistrict D (75 dB)
ZoningStudy Area
Port TidelandsTidelands Boundary
Tenth AvenueMarine TerminalNaval StationSan Diego
Parcels
- Residential(single/multi-family)- Residential (single/multi-family)
- Uses permitted in IL-3-1that existed prior to 7-5-1983
Central CityPlanned District
IH-2-1 (75 dB)
IL-3-1 (75 dB)
RM-3-9 (50 dB)
- Residential (single/multi-family)- Commercial Uses- Commercial/
Limited light industrial- Mixed use encouraged
Subdistrict A (45 dB)
- Uses permitted in IH-2-1
- Residential(single/multi-family)
- Uses permitted in IH-2-1except chrome plating
Subdistrict B (60 dB)
Subdistrict C (45 dB)
75
5
5
15
Figure 3. Zoning (noise ordinance Limits)
Page 19
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Page 21
City of San Diego Truck Routes and Restrictions
The San Diego City Council amended the truck route and truck and weight restrictions for Barrio Logan on December 4, 2018 (Resolution R-312086 [R-2019-249]). The amendment included a ban on vehicles weighing more than five tons on certain streets in Barrio Logan that typically have a low volume of traffic, including parts of Boston Avenue, Main Street, and 28th, 29th, 30th, 31st, and 32nd Streets. As shown on the following page in Figure 4, Truck Route and Prohibition Map, the prohibition on five-ton commercial vehicles covers the following road segments:
1. Sigsbee Street between Harbor Drive and Logan Avenue
2. Beardsley Street between Harbor Drive and Logan Avenue
3. Cesar Chavez Parkway between Harbor Drive and Logan Avenue
4. Main Street between Cesar Chavez Parkway and Sampson Street
5. Evans Street between Main Street and Logan Avenue
6. Sampson Street between Harbor Drive and Logan Avenue
7. Sicard Street between Main Street and National Avenue
8. 26th Street between Main Street and Logan Avenue
9. 27th Street between Main Street and Broad Street
10. 28th Street between Main Street and Boston Avenue
11. 29th Street between Main Street and Boston Avenue
12. Boston Avenue between 28th Street and 32nd Street (with an exemption forcommercial vehicles over five tons but with a height over 13 feet, 6 inches due toheight limitations of the Navy-owned bridge at 32nd Street)
13. Main Street between 28th Street and 32nd Street
At the request of the community, the San Diego Police Department has recently increased enforcement of the truck routes through establishment of formal operation. As reported by the Police Department at the Barrio Logan Community Planning Group meeting, this has resulted in a significant increase of citations:
January–July 2019 = 49 citations
August–September 2019 = 109 citations
October 2019 = 80+ citations
Temporary noise spikes associated with truck traffic was apparent on all monitored data and appears to be a significant source of nighttime noise. Continued enforcement of the truck routes is expected to reduce intermittent noise spikes associated with truck traffic throughout the community.
Average Citations per Month in 2019
06TH
MA
GEN
TA
SAN DIEGO
NATIONAL CITY
CORONADO
I-5 SB
I-805 SB
I-805 NB
MAIN ST
HARBOR DR
D AV
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E 08TH ST
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E 16TH ST
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E 18TH ST
EUC
LID A
V
IMPERIAL AV
PALM
AV
S 32
ND
ST
E AV
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B
LOGAN AV
SR-75 N
B E DIVISION ST
S 38
TH S
T
HIGH
LAND
AV
S 47
TH S
T
E 06TH STS
28TH
ST
A AV
S 40
TH S
T
S 36
TH S
T
S 45
TH S
T
S 37
TH S
T
S 35
TH S
T
I AV
C AV
E 02ND ST
S 43
RD
ST
K AV
BELT ST
JULIAN AV
IRVING AV S 31
ST S
T
S 30
TH S
T
G AV
SOLOLA AV
I-15
SBI-1
5 N
B
KEARNY AV
SAMPSON ST
I-5 S
B O
N R
A
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NAL C
ITY BL
CLAY AV
S EU
CLI
D A
V
BIRCH ST
B AV
GR
OVE ST
I-805 SB ON RA
ALPHA ST
R AV
BETA ST
I-5 SB OFF RA
W 18TH ST
Z ST
S 33
RD
ST
T AV V AV
I-805 NB OFF RA
OLVERA AV
DIVISION ST
ETA ST U AV
O AV
BOSTON AV
M AV
W 08TH ST
NEWELL ST
WEBSTER AV
T ST
FRANKLIN AV
S 46
TH S
T
E 17TH ST
HARRISON AV
NEWTON AV
HAR
DING
AV
TRIN
IDAD W
Y
E 01ST ST
CESAR E C
HAVEZ PY
COO
LIDG
E AV
EPSILON ST
N A
V
LA PAZ DR
E 24TH STE 21ST ST
S EVANS S
T
BONITA DR
I-15 NB ON RA
J AV
DELTA ST
I-805 NB
ON
RA
WILSO
N A
V
W 16TH ST
DEWEY S
T
COBAN ST
S 41
ST S
T
WABAS
H BL
I-5 NB ON RA
I-805 SB O
FF RA
RIGEL S
T
W 15TH ST
TEAK ST
ENCINA D
R
CHURCHWARD ST
L AV
NORDICA AV
S 26
TH S
T
W 12TH ST
S 39
TH S
T
FLORENCE ST
PALIN ST
ACACIA ST
PRO
SPECT ST
DALBERGIA ST
F AV
OSB
OR
N S
T
FIG CT
S 27
TH S
T
VALLE AV
SIGSBEE S
T
N T
AV
GAMMA ST
W 11TH ST
AD
A S
T
MARTIN AV
GLO
RIA
ST
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COTTONWOOD ST
LAU
REL A
V
KEELER AV
MANZANARES WYQ
AV
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AV
S HAR
BISO
N AV
N U
AV
E 09TH ST
MC
KIN
LEY AV
HEMLOCK ST
E 11TH ST
BUNNELL ST
E 03RD ST
E 05TH ST
E 13TH ST
BAY FRONT ST
S DREXEL A
V
MANOMET ST
ALL
EY
SR-75 SB ON RA
WES
T ST
HOLLY DR
S 42
ND
ST
W PLAZA BL
REYNOLDS ST
S 29
TH S
T
MARINE VIEW AV
ELIZ
AB
ETH
ST
N R
AV
I-805 RA
A ST
S BOU
NDA
RY ST
S G
REG
OR
Y ST
E 12TH ST
SAN ONOFRE TR
E 07TH ST
SCOTT DR
NOR
TON
AV
I-5 NB OFF RA
DURANT ST
I-805
NB
OF
RA
E 20TH ST
OR
ANG
E ST
S KENTON AV
SCHL
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T
S 16TH
ST
UNA ST
OLI
VEW
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S PA
RD
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T
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N DREXEL A
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BR
AE
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S BELM
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THOR S
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NORFOLK ST
E 22ND ST
E 14TH ST
S 49
TH S
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E 15TH ST
S 44
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50TH
ST
SAN
MIG
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AV
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S CLAIRMO
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GREELY AV
W 09TH ST
PELUSA ST
MELROSE ST
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EAR
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ARC
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BR
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SUPERIOR ST
DO
MIN
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N S
AV
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W 07TH ST
SHERYL LN
SAN
ALBE
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GO
OD
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T
LA B
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W 14TH ST
W 03RD ST
PAYN
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W 02ND ST
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MA
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C AV
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NEWTON AV
S 42
ND
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LOGAN AV
E 07TH ST
F AV
E 06TH ST
NEWTON AV
I-5 SB OFF RA
J AV
ALL
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E 02ND ST
S EU
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D A
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WES
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LOGAN AV
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ALPHA ST
BOSTON AV
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S 44
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SICARD S
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BELT ST
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E 14TH ST
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LOGAN AV
NEWTON AV
M AV
I-5 N
B O
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I-5 SB OFF RA
S 31
ST S
T
I-5 N
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FRANKLIN AV
E 22ND ST
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BETA ST
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S 39
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T
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T
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E 15TH ST
E 02ND ST
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KEELER AV
E 09TH ST
DELTA ST
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S 40
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COMMUNITY NAME: BARRIO LOGAN COUNCIL DISTRICT: 8Date: 11/1/2018
TRUCK ROUTE & PROHIBITIONMAP
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Source: City Council Resolution 2019-249, adopted December 10, 2018Page 22
Page 23
3.0 Community Engagement & Survey 3.1 COMMUNITY ENGAGEMENT
Community Engagement Milestones This Study included extensive community engagement to raise awareness of the Study, engage residents in the process, and collect information to better understand community concerns and their first-hand observations of noise events. Community members were updated on findings throughout the term of the Study. Below is a list of the community engagement milestones:
September 18, 2019 – Community Planning Group Meeting presentation anddiscussion, distribution of informational flyer, business cards, and paper surveys(Spanish and English).
Three In-person Outreach Field Days – In-person engagement with residents,employees, and operators of local businesses in the neighborhood to talk tocommunity members about their experiences with nighttime noises (Friday,September 27, 2019; Saturday, October 5, 2019; and Wednesday, November 6, 2019).Residents were encouraged to participate further by completing the nighttime noisesurvey, which was available on the Port’s website or via hard copy. FromSeptember 18 through December 31, 2019, the engagement efforts resulted in:
o 530+ direct contacts
o Distribution of 750 pieces of material (informational flyers and business cards)
o 40 completed noise surveys (paper and online)
October 16, 2019 – Community Planning Group Meeting discussion
November 18, 2019 – Maritime Stakeholders Forum presentation and discussion
November 20, 2019 – Community Planning Group Meeting presentation anddiscussion
Community Engagement Locations On Friday, September 28, the community outreach team visited 12 locations. Where feasible, staff left information sheets, paper surveys, and business cards on community boards or with store managers, supervisors, and other staff where clientele and/or employees live in the neighborhood.
On Saturday, October 5, 2019, the community outreach team expanded its reach to laundromats, restaurants, and other storefronts to find more residents. In total, contact was made at 24 places.
A third day of community engagement was conducted on Wednesday, November 6, 2019, to build on the momentum of the prior days. The method and approach were modified again to focus on residents completing the noise survey. On this day, 19 noise surveys were completed as a result of interaction with approximately 50 individuals in and around the
Page 24
same venues visited previously. These efforts created a broader awareness of the Study efforts and led to completion of 40 surveys to document noise events experienced by Barrio Logan residents.
3.2 COMMUNITY NOISE SURVEY RESULTS The in-person and online survey for Barrio Logan residents regarding nighttime noise events was a major element of the community engagement component of the Study. The full results of the survey are included Appendix 2 and summarized below.
The survey included nine main questions and seven supplementary follow-up questions to provide more detail. Forty surveys were completed through January 2020. The average response rate to the survey questions was excellent, between 80 percent and 100 percent on the primary questions. The follow-up questions allowed respondents to provide detailed descriptions. Nearly 500 responses and comments were provided in total, offering an excellent and reliable insight into the conditions in Barrio Logan.
On the following page, Figure 5, Observed Noise Locations, identifies the location of the survey respondent at the time of the noise event. The arrow adjacent to the “location dot” shows the general reported direction of the noise. It should be noted that because of the 45-degree angle of the streets and orientation of the shoreline, people tend to orient either toward the street or the shoreline. As a result, north can mean northwest toward downtown San Diego or northeast toward I-5. Similarly, south can mean toward the shoreline or southeast down the streets parallel to the shoreline toward National City.
Overall, 72.5 percent of the survey respondents reported the observed noises identified in the survey came from the south or west. When viewed with the mapped arrows, the vast majority of the survey respondents appears to be referring to the shoreline and the railyards. This observation is further supported by the responses to the other survey questions.
When asked to identify or describe the location or direction of the noise, approximately 83 percent of the total reported noise sources were categorized as being from shipyard-, railroad-, and traffic-related uses. The chart to the right shows the top responses for the most common descriptions of reported noises.
Horns, the most reported common description of noises, have multiple sources, including mandated warning train horns when approaching road crossings, ship horns used to communicate during certain weather events between tugboats and the shipyard, and mandated warning horns on the cranes in the shipyards.
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Figure 5. observed noise Locations
Page 25
Page 26
Additionally, survey responses included several references to very loud, repetitive banging that some survey respondents described as sounding like gun fire. The observed noise was characterized as possible target practice as opposed to criminal activity due to the length and repetitiveness of the sound. There are two likely explanations. One is actual target practice and weapons training heard across the San Diego Bay from quarterly training exercises on the Navy Seal facilities on the Silver Strand. The other, more likely, and more frequent source is the banging that occurs in succession when freight train rail cars are joined together (referred to as coupling); the slack in the coupling device makes a loud bang and is repeated down the length of the train. This occurs nightly, generally between midnight and 6:00 a.m., as the trains are being assembled and when they depart and arrive from both the MTS and BNSF railyards. However, BNSF’s coupling activities should be distinguished from MTS’s: when BNSF freight cars are switched and coupled the noise can be heard for several blocks (especially when empty), whereas MTS light rail cars are generally coupled at less than 1 MPH and the noise generated from coupling is limited to several feet away.
The community survey nighttime noise results are included in Appendix 2. The following statistics summarize the survey results:
92 percent reported they have heard the noise before, and the vast majority reportedthe noises occur most days and nights.
83 percent of the reported sources were categorized as shipyard, railroad, or trafficnoises.
75 percent of respondents characterized the reported noises as very noticeable orvery loud.
72.5 percent of respondents said the noises woke them from sleep or kept them fromsleeping (55 percent) or they were startled by the noise (17.5 percent).
72.5 percent of the respondents said the reported noise was coming from the southor west, generally from the railroad and waterfront.
72.5 percent reported the noise lasting more than a minute.
Nearly 50 percent said it lasted longer than 5 minutes.
40 percent said it lasted longer than 10 minutes.
The noises were characterized as repetitive (47.5 percent), constant (32.5 percent),and irregular (20 percent).
15 percent said they had become used to the noises.
3.3 INDUSTRY INTERVIEWS AND DOCUMENTATION A key component of the Study was conducting interviews with local industry representatives. During October 2019, Port tenants and representatives from local industries that extend beyond the Port Tidelands were interviewed to learn more about what happens during nighttime hours on their respective properties. Subsequent meetings and site visits occurred through December 2019. The industry representatives were very cooperative and provided ready access and helpful information about equipment and operations in general, and particularly those that make noise during nighttime hours.
Page 27
Rail Service Phone and in-person interviews were conducted with representatives of MTS, BNSF, NCTD, and the City of San Diego.
Rail service in San Diego comprises two types: passenger and heavy freight. Passenger service is provided by MTS, NCTD, Metrolink, and the Coaster. BNSF operates heavy freight seven days a week on a combination of its own lines between National City and Laurel Street in San Diego, and BNSF shares rail lines through San Diego with MTS, NCTD, Metrolink, and the Coaster. NCTD oversees, schedules, and manages all the rail service in San Diego.
Commuter and freight service share the same tracks, and thus, are required to run at different times; this is referred to as temporal separation. Commuter/passenger rail generally operates from 5:00 a.m. to midnight. Therefore, passenger service is not operating during the late nighttime hours of concern. However, freight service is limited to late night hours, seven days a week. Unlike the passenger cars, heavy freight trains operated by BNSF have different cars, weights, and coupling systems. Building a train, switching cars, and starting and stopping the train cars, particularly the heavy freight variety, creates very loud banging noises as the slack in the coupling links between cars is taken up or released during movement. The resultant bangs ripple down the trains, car by car, as the train is moved forward and back as more cars are added and whenever the cars accelerate and decelerate significantly. The assembly and disassembly of freight trains occurs primarily in the railyards but extends onto the service tracks for longer trains, which range between 1,000 and 6,000 feet (over one mile) in length. BNSF and MTS both have yards in and adjacent to Barrio Logan. BNSF builds its trains on its tracks in Barrio Logan from 5th Avenue down to the PASHA auto yards in National City. The noises from this operation are unavoidable, and the hours of operation during the late-night hours are also unavoidable under the shared track operating system. BNSF generally runs two trains up to 5,000 to 6,000 feet in length (in and out) each day. MTS also runs one local freight train that is approximately 800 to 1,600 feet in length for the San Diego and Imperial Valley Railroad (SDIV) between the MTS yard and San Ysidro Monday through Friday on the MTS tracks.
Naval Base San Diego Naval Base San Diego, also known as 32nd Street Naval Station, is the principal homeport of the Pacific Fleet, consisting of greater than 58 Navy ships. Naval Base San Diego is located along the southwestern portion of the Barrio Logan community and is divided into the wet side and the dry side. The wet side is on the bay side of Harbor Drive with the main gate at 32nd Street. There are also gates at 8th Street in National City, and the farthest south gate is at Pier 13. All ships at Naval Base San Diego are moored on the wet side. The wet side has the Naval Base San Diego movie theater, Budweiser Brew House, Mini-NEX and Uniform Store, and several restaurants. The Naval Base San Diego dry side main gate is from 32nd Street. It has two gas stations, the commissary, Main Exchange (NEX), and other stores. Most Naval Base San Diego housing is also located on the dry side. Naval Base San Diego proper is under federal ownership and composed of over 1,600 land acres and 326 acres of water.
An interview with the Navy Community Planning and Liaison Officer reported the Navy facility is a very large operation that is largely unknown to the larger San Diego community.
Page 28
It functions as a university for the Navy, annually matriculates as many graduates as University of California at San Diego (UCSD), and has the same number of daily visitors (50,000) as the San Diego International Airport. The defense related industry represents one-fifth of all economic activity in the County of San Diego. The wet side facilities west of Harbor Drive include Navy ship construction, maintenance, and repair operation activities. Contractors from the nearby ship building and repair businesses of NASSCO, Huntington Ingalls Industries (HII), and BAE are bussed into the Navy yard facilities and represent roughly 10 percent of the employees.
Noise sources at the Naval Base are typically associated with the maintenance and repair of ships and vessels, in addition to other base operations, such as construction or repair of buildings, roads, grounds, and piers. The Navy does not conduct around-the-clock operations. The Navy’s primary hours of operation are from 7:00 a.m. to 3:30 p.m., which creates significant traffic outside the gate within the Barrio Logan community as the thousands of staff come and go from the facility. Some flex shifts work slightly later but leave by 5:00 p.m.; these activities include command operations, training, education, and a full complement of support services. After 6:00 p.m., activities include security watches. The Navy Exchange store closes by 8:00 p.m. There are no regular late-night noise sources from the Navy operations. The Navy does have an emergency broadcast communications system called the “Big Voice” which is an outdoor speaker system; however, it is only tested during the day and used at night only in the event of an emergency.
NASSCO NASSCO is located west of Harbor Drive at 28th Street and is a major ship builder for the U.S. Navy. NASSCO has been designing and building ships on the working waterfront since 1960. NASSCO operates seven days a week around the clock with three shifts per day: shift 1 is 6:30 a.m. to 3:00 p.m.; shift 2 is 3:00 p.m. to midnight; and shift 3 is midnight to 6:30 a.m. Shifts 1 and 2 include approximately 2,000 employees each. NASSCO currently builds three major ships per year. Noise sources include:
Cranes. NASSCO has over 100 cranes (mostly electric powered) of various size andcapacity. Nine of the 100 cranes are diesel powered and are installed with selectivecatalytic reduction (SCR) and diesel particulate filters (DPF). The diesel-poweredcranes move the largest shipbuilding blocks in the yard with weights up to 300 tons.All of the cranes have installed horns/beepers pointed toward the ground to warn ofany crane use or movement (horns sound every time a crane moves) pursuant toOccupational Safety and Health Administration (OSHA) Section 1910.179 requirementsfor overhead. NASSCO moves very large, heavy blocks and ship building materials allday during shifts 1 and 2 (6:30 a.m. to midnight), on occasion, the size and weight ofcertain blocks require two cranes simultaneously. Currently, there is limitedmovement of cranes or major moves on shift 3 (midnight to 6:30 a.m.).
Horns. Warning horns that signal the opening of the gates to the NASSCO rail spurused for steel delivery by rail sound two to three times per week, typically during thefirst shift (6:30 a.m. to 3 p.m.).
Truck traffic via Gate #14 (near BAE) for steel delivery via Harbor Drive. NASSCOcannot absorb a ships worth of steel delivered all at once; therefore, there are truck
Page 29
deliveries daily at Gate 14 and deliveries by rail once or twice a week. This typically occurs during first shift (6:30 a.m. – 3:00 p.m.).
Shift 3 is currently not a full production shift. Rather, it is used mostly for maintenance and yard cleanup and includes approximately 300 to 400 employees. The more intensive daytime operations may be extended to shift 3, from midnight to 6:30 a.m., when new construction production requirements dictate.
Blast and Paint operations are conducted in a fully enclosed hangar facility on first and second shift. Big fans run during paint operations. The fans run the filter systems in each of the 7 hangars that destroy 98% of volatile organic compounds (VOC’s) that are associated with blasting and painting. They are located outside on Harbor Drive and could be a source of noise. Paint operations do not occur during shift 3, and therefore, such activities would not affect late-night hours.
NASSCO and all U.S. Navy ships are required to test ship whistles before ships are sent out to sea. For NASSCO the tests occur prior to a newly constructed ship heads out to sea for the first time following construction; however, on average, this occurs once or twice a year. Per federal regulations, ship whistles use two distinct durations and must be audible for at least one-half mile. The first duration is a “short blast” (about one second in duration). The second is a “prolonged blast” (4 to 6 seconds in duration). The system is designed to be operated in automatic and manual modes, and both functions need to be tested. The sound signals per regulation often use short and long blasts in one iteration; for example, testing includes one prolonged blast followed by three short blasts; the duration of this testing may take up to 45 minutes. This is typically performed during daytime shifts.
BAE BAE is located west of Harbor Drive at Sampson Street and provides ship repair services for more than 50 U.S. Navy vessels homeported in San Diego, in addition to the various commercial ships that make port calls in San Diego. BAE facilities include a 55,000-ton lift and drydock, 26,000-ton lift and drydock, and 2,800 feet of piers. BAE operates two shifts, Monday through Saturday: 6:00 a.m. to 2:30 p.m.; and 3:00 p.m. to 11:00 p.m. BAE leaves a half hour between shifts to avoid employee overlap for parking and traffic congestion. BAE noted that the only late-night noises are from tugboat horns used to communicate with landside operations during relatively infrequent docking activities due to wind and tide considerations. BAE does not use trains or perform block lifts.
Source: Port of San Diego, 2019.
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Huntington Ingalls Industries (HII) HII is located west of CP Kelco and Harbor Drive, directly south of the Coronado Bridge (SR-75), and is also in the ship building and repair business. Similar to NASSCO and BAE, HII uses large cranes with horns as part of its construction process. HII operates three shifts per day. The third/night shift is mostly security and does not include active shipbuilding or repair operations.
CP Kelco CP Kelco is a global company that produces food additives; it was founded in San Diego in 1929. CP Kelco is located east of HII on Harbor Drive, also directly south of the Coronado Bridge (SR-75). CP Kelco is a manufacturer/refinery of a specialized food and other liquid additive that thickens and stabilizes liquids. CP Kelco’s operations require its compressor machines and cooling towers to operate around the clock. A tour of the facilities conducted in November 2019 showed the building has a main door on the community side (north) that was open, a rollup door on the eastern side, and two fan openings on the western side. The potential nighttime noise sources include air compressors and motors that are used to operate the larger fermentation tank where its product is produced. A noise attenuation wall was constructed 10 years ago to reduce noise to the adjacent HII property to the north. The compressors are in an older metal building with open doors and louvers for ventilation.
10th Avenue Marine Terminal (TAMT) TAMT operates one shift daily from 8:00 a.m. to 9:00 p.m. All deliveries of parts and supplies are by truck. The truck route includes two entry and exit points: one near Petco Park and the second via the Cesar Chavez gates, with truck traffic complete by 6:00 p.m. All loading/unloading of ships is done by trucks in the yard. Truck traffic is done by 5:00 p.m. to 6:00 p.m. There is also occasional rail use for throughput that comes in/out on tariff. After 9:00 p.m., only security and general property maintenance occurs.
As of the publishing date of this Study, TAMT is in the process of demolishing a large transit shed and trucking debris from the site. This generates truck traffic during daytime hours but is temporary and will be completed by Summer 2020. TAMT tenants are in the process of converting some on-terminal cargo handling equipment to electric alternatives (e.g., electric yard trucks), which should dramatically reduce operational related noise.
Recycling Facilities & Outdoor Operations On the following page, Table 7, Junkyard/Landfill/Recycling Centers in Barrio Logan, describes the locations identified in Figure 2 (page 13) as Junkyard/Dump/Landfill. This general category includes primarily outdoor facilities and operations in the Barrio Logan study area including two recycling businesses (IMS and SA Recycling) in three locations (Boston Avenue, 27th and Main, and 32nd and Main). The facilities vary in the type of activities that occur onsite and in hours of operation, and therefore, so do the associated noise sources at the facilities. Noise is generally generated by use of onsite equipment such as forklifts, vehicle use (i.e., back up warning noise), unloading and sorting of materials, and workers and visitors coming to and from the site.
Table 7 identifies the location, business name (if any), existing zoning, the referenced industrial zones where applicable, the posted hours of operation, the observed use, the
Page 31
relevant use listed in the zoning code, and the type of approval required for the use. The purpose of this table is to identify the existing recycling uses and other outdoor operations and the required form of approval.
All three recycling operations are permitted uses subject to a Neighborhood Use Permit (NUP), one of the lowest levels of discretionary approval issued by the City, approved at the staff level. The IMS Recycling facility on Boston Avenue is located in the BLPD-B zone and is subject to a 60-dB limit at the property line. The other two sites are each located in the BLPD-D zone and are subject to a 75-dB limit at the property line.
As noted in the table, all but one of the observed uses were issued permits. A few are permitted principal uses, while most are subject to either a Neighborhood, Limited, or Conditional Use Permit. These permits allow the City to establish use-specific operational and site standards to protect, mitigate, and promote compatibility with the surrounding uses. Facilities are required to conform with the specific operating restrictions of the permit, including noise restrictions, and any violations would be enforceable by the City’s Code Enforcement Division. The City mandates facilities have standard hours of operation from 7:00 a.m. to 7:00 p.m. when located within 500 feet of residentially zoned property. (See Section 2, Regulatory Framework, Local Policies, Standards and Regulations, for more information.)
EXCERPT FROM TABLE 6: MAXIMUM NIGHTTIME NOISE LEVELS (PAGE 15) Existing Study
Area Zones Primary Zone Uses
Noise Ordinance Limits
1-Hour Maximum dB (10:00 p.m. to 7:00 a.m.)
BLPD – B Single/multi-family IH-2-1 Heavy Industry
60 dB1
(45 Multifamily and 75 Industrial)
BLPD – D IH-2-1 Heavy Industry Waterfront Dependent 75 dB
TABLE 7: JUNKYARD/LANDFILL/RECYCLING CENTERS IN BARRIO LOGAN (C = Commercial Use Permit; L = Limited Use Permit; N = Neighborhood Use Permit; P = Permitted Use; - = Prohibited Use)
Name and Address
Hours of Operation Zoning
Reference Zone
Maximum 1-Hour dB
(10:00 p.m. to 7:00 a.m.) Observed Use
Presumed Applicable Zoning Use
Permit Type
SA Recycling 1211 S 32 St
9:30 a.m. to 4 p.m.
BLPD-D IH-2-1 75 dB
Large recycling center on multiple
lots. Contains vehicles and misc.
equipment
Large Processing
Facility Accepting All
Types of Traffic
N
IMS Recycling
2740 Boston Ave
9:30 a.m. to 4 p.m.
BLPD-B IH-2-1 60 dB
Large recycling center on multiple
lots. Contains vehicles and misc.
equipment
Large Processing
Facility Accepting All
Types of Traffic
N
Unknown
2642 Newton Ave
Unknown BLPD-A IL-3-11 45 dB
Medium storage lot, contains vehicles
and misc. equipment
Equipment & Materials
Storage Yards P
TABLE 7: JUNKYARD/LANDFILL/RECYCLING CENTERS IN BARRIO LOGAN, CONTINUED
Page 32
Name and Address
Hours of Operation Zoning
Reference Zone
Maximum 1-Hour dB
(10:00 p.m. to 7:00 a.m.) Observed Use
Presumed Applicable Zoning Use
Permit Type
Unknown
2191 Newton Ave
N/A BLPD-B IH-2-1 60 dB Empty fenced lot
Equipment & Materials
Storage Yards P
Shell Gas Station
1145 S 28th St 24 hours BLPD-
B IH-2-1 60 dB Gas station, parking lot
Automobile Service Station L
Chingon Custom Metal
Fabrication
2720 Main St
Unknown BLPD-B IH-2-1 60 dB
Four warehouses on-site, medium
sized storage yard that mostly
contains vehicles
Light Manufacturing P
Chevron
3774 Main St 24 hours BLPD-
B IH-2-1 60 dB Gas station, parking lot
Automobile Service Station L
Unknown
2069 Main St Unknown BLPD-
D IH-2-1 75 dB
Large storage lot, mostly empty,
contains construction/utility
equipment
Equipment & Materials
Storage Yards P
Unknown
1304 Sampson St
N/A BLPD-D IH-2-1 75 dB Utilities, power
station
Energy Generation & Distribution
Facilities
P
Unknown
1604 Newton Ave
Unknown BLPD-RDVP IP-2-1 60 dB
Small storage yard (cars, vans, boats).
One small warehouse on-site
Equipment & Materials
Storage Yards -
Charlie’s Auto Repair
1025 Sigbee St
Unknown BLPD-RDVP IP-2-1 60 dB
Small commercial auto body shop, no
dismantling
Automobile Service Station L
Unknown
1792 National Ave
Unknown BLPD-RDVP IP-2-1 60 dB
Small public parking lot,
landscaped, food trucks on-site
Parking Facilities as a Primary Use
C
Unknown
E Harbor Dr and Vesta St
N/A IH-2-1 IH-2-1 75 dB Utilities, power station
Energy Generation & Distribution
Facilities
P
Page 33
4.0 Sources of Nighttime Noise The primary sources of nighttime noise within the Barrio Logan community include both transportation and stationary sources. Transportation-related sources are primarily vehicular traffic along major roads and train noise along trolley and freight lines. The community is generally not affected by significant overflight of aircraft or airport operations. Stationary noise sources generally include exterior heating, ventilation, and air conditioning (HVAC) units, public safety address systems, parking lot noise, and delivery activities.
The results of the community noise survey, interviews with local industry representatives, and three weeks of monitoring between midnight and 6:00 a.m. provide clear evidence that the majority of the nighttime noises are from three main sources: traffic, trains, and stationary sources at the working waterfront. These sources combine to create the overall conditions that vary by location throughout Barrio Logan. It should be noted that although noise sensitivity is generally considered to increase around 10:00 p.m. (i.e., when families tend to begin going to bed), noise monitoring occurred between midnight and 6:00 a.m. However, ambient noise and noise spikes documented for the period of 10:00 p.m. to midnight are anticipated to be similar to the midnight to 6:00 a.m. period. As such, recommendations provided in Section 6.2 below that address reductions to late-night and early morning hours are also expected to apply to similar noise conditions experienced between the hours of 10:00 p.m. and midnight.
4.1 TRAFFIC There are two main types of traffic noise: freeway/highway traffic from I-5 and SR-75, and surface street traffic (i.e., Harbor Drive). The patterns are readily apparent in the noise monitoring data. Noise from I-5 and SR-75 is constant and consistent, within a narrower range of noise level from low to high, from minute to minute, and over the course of the day and week. Surface or local street traffic follows similar daily and weekly patterns, with very noticeable increases in weekday morning commute traffic, increasing significantly between 4:00 a.m. and 6:00 a.m. These commuter traffic increases were noticed at every location over all three weeks of measurements. See Appendix 3 for all noise monitoring results.
A comparison of the 1-minute interval measurements from monitoring locations C and D (see page 32 for Figure 6, Location C (National and Evans) 1-Minute Interval Measurements, October 25 to 31, 2019 and Figure 7, Location D (Harbor South of 75) 1-Minute Interval Measurements, October 25 to 31, 2019) illustrates the different noise patterns. Location C, near the intersection of National and Evans, exhibits an entirely different pattern. Here, it is possible to distinguish each day of measurement from the others. During each day, represented by different color lines and points, the difference between the minimum and maximum measurements is very narrow – typically only 1 or 2 dB from minute to minute, and typically less than 5 dB hour to hour. This correlates very strongly with traffic noise from SR-75 and I-5, and the noise, like the traffic, is very constant.
Location D exhibits the noise patterns of surface street traffic in close proximity to the residents. It has far greater variation in noise levels (typically 15 to 20 dB) minute to minute reflecting the impact of passing vehicles in close proximity to the monitor. The range of noise levels was fairly constant hour to hour between midnight and 4:00 a.m., and then
Page 34
increased during the morning commute hours between 4:00 a.m. and 6:00 a.m. These short-term variations are averaged out when measured over 1-hour intervals consistent with the Noise Ordinance. See Figure 8, Location D (Harbor South of 75) Hourly Intervals, October 25 to October 31, 2019. The increasing commuter traffic noise patterns between 4:00 a.m. and 6:00 a.m. were observed at all monitored locations.
FIGURE 6. LOCATION C (NATIONAL AND EVANS) 1-MINUTE INTERVAL MEASUREMENTS, OCTOBER 25 TO 31, 2019
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FIGURE 7. LOCATION D (HARBOR SOUTH OF 75) 1-MINUTE INTERVAL MEASUREMENTS, OCTOBER 25 TO 31, 2019
FIGURE 8. LOCATION D (HARBOR SOUTH OF 75) HOURLY INTERVALS, OCTOBER 25 TO 31, 2019
Page 36
Because of their consistency, freeway noises tend to become ambient as residents can more easily adapt to such noises. The shorter term, periodic noises, such as a revving motor or passing of a loud motorcycle, car, or truck, are more likely to startle and distract. In some ways, the local traffic has a more disruptive impact as the proximity and magnitude of the noise varies greatly, leading to relatively sudden spikes of noise with each passing vehicle versus the constant hiss or drone of the collective freeway traffic. Other traffic-related noise includes the sounds of impact from the tires hitting imperfections and damaged road surfaces such as cracks, seams, heaves, and potholes. The smoothness and material of the pavement affects the frequency or pitch, and the intensity of the sound. Asphalt is typically a noticeable 3 to 4 dB quieter than concrete.
In addition to the regular noise patterns from streets and highways, there were also many recorded incidents of short-term, yet very loud noises that spiked above the observed patterns. Some of these significant spikes are generally quite random, but also tend to occur within certain windows. Despite being of short duration, some are loud and frequent enough to significantly raise the overall noise levels measured over the 1-hour measurement periods consistent with the limits of the City’s Noise Ordinance, and over the course of a 24-hour period consistent with the policy guidelines established in the Noise Element of the City of San Diego General Plan. This is illustrated on the next page in Figure 9, Location A (Main & Beardsley) 1-Minute Intervals, November 18 to 24, 2019, and Figure 10, Location A (Main & Beardsley) Hourly Intervals, November 18 to 24, 2019. The highlighted 80+ dB spikes during the midnight, 1:00 a.m., 2:00 a.m., and 3:00 a.m. hours shown in the 1-minute intervals raise the hourly average in the hourly interval averages during the same period.
FIGURE 9. LOCATION A (MAIN & BEARDSLEY) 1-MINUTE INTERVALS, NOVEMBER 18 TO 24, 2019
O Noise spikes greater than 80 dBA correlate with freight rail runs that tend to leave around 1 a.m. and return around 3 a.m. These noises are most likely train horns but may also reflect coupling and moving of train cars. These spikes notably raise the hourly averages during these same hourly periods.
Page 37
FIGURE 10. LOCATION A (MAIN & BEARDSLEY) HOURLY INTERVALS, NOVEMBER 18 TO 24, 2019
4.2 TRAINS Railway noise includes noise from the trains and emergency signaling devices. Freight trains and light rail transit (trolley) can generate high, relatively brief, intermittent noise events. Trolley and freight vehicles are equipped with horns, whistles, and bells which are mandated for use in emergency situations and as a general audible warning to track workers, trespassers within the right-of-way, pedestrians, and motor vehicles at road grade crossings. Horns, whistles, and bells on the moving trolley vehicle, and horns from freight trains, combined with stationary bells at grade crossings, can generate excessive noise levels that can affect noise-sensitive land uses.
Two railroad companies operate along the approximately 2.5-mile length of rail lines through Barrio Logan: MTS and BNSF. Each has its own tracks and railyards on opposite sides of Harbor Drive. The MTS railyard is at the north end of Barrio Logan, generally between Park Boulevard and Sigsbee Street on the north side of Harbor Drive. The BNSF railyards are between Park Boulevard and Cesar E. Chavez Parkway, several hundred feet on the south side of Harbor Drive until near Schley Street where they border Harbor Drive toward the south.
Within the Barrio Logan community, the MTS Blue Line contains three trolley stations and seven at-grade road crossings. BNSF freight trains pass through five at-grade crossings. The rail facilities are shown on page 37 in Figure 11, Zoning (Noise Ordinance Limits) and Rail Facilities.
At each at-grade crossing, there are train warning signals operating while the train is in the vicinity of the crossing. Trolley and freight locomotives are required to sound their warning horns and bells for a minimum of 15 to 20 seconds when approaching an at-grade road
Page 38
crossing. Each at-grade crossing is required to have bells to warn vehicle and pedestrians of oncoming trains. Each bell is required to generate a minimum of 70 dB. However, as noted, the FRA regulates noise levels associated with railways and railway activities. The MTS and BNSF railways are not subject to local noise policies or regulations adopted by the Port or City. The FRA establishes standards for train warning horn loudness and duration for road crossings (96 to 110 dB). According to interviews with MTS, most of the older bells in the quiet zones established in San Diego have been measured in the 80 to 90 dB range. As part of the required improvements, many of the older bells were replaced with new replacement bells that have adjustable levels beginning at the minimum 70-dB level. For most crossings, there is a bell installed at each actuated crossing gate. Typically, there are two actuated crossing gates at each intersection, one for each vehicular travel lane approach to the rail crossing. It would be possible to test the existing bells and create a program to replace older bells with new ones. In this manner, the noise levels produced at the crossings could be reduced. This could be done independently or as part of quiet zone improvements.
The MTS Blue Line trolley runs 21 hours a day, every day of the week, between the hours of 4:30 a.m. and 1:30 a.m. Approximately 206 scheduled trains each day pass through the Barrio Logan community (SDMTS 2019). Trolley operations are limited during the primary hours of concern (1:00 a.m. to 4:00 a.m.). Currently, 53 MTS trolley trains run through Barrio Logan between 10:00 p.m. and 7:00 a.m. on weekdays; 13 run between 10:00 p.m. and 1:30 a.m.; and 40 run between 5:00 a.m. and 7:00 a.m.
BNSF operates approximately four to six freight trains daily through Barrio Logan. Freight trains vary in length and in the number of locomotives or cars in each operation. Freight train operations are not on a set time schedule. With rare exceptions, all freight trains operate at night.
Freight service is restricted to late night hours, generally between midnight and 5:00 a.m., since they are not allowed to run while passenger trains are on the tracks. The freight service generates the most disruptive noise. Several late night rail-related noises were reported, including train horns, street crossing warning bells, banging and screeching of the coupling, and moving freight rail cars, which includes noise generated in the process of connecting new rail cars to a line.
Many of the reported and observed very loud spikes are associated primarily with the late night heavy freight operations. Their patterns match the very limited operational windows and general number and schedule reported by BNSF and SDIV (operated by MTS). These very loud spikes frequently occur around the 1:00 a.m. and 3:00 a.m. hours. However, the noise limits for such operations are high and do not appear to be exceeded.
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Zoning (Noise Ordinance Limits) & Rail FacilitiesBarrio Logan Nighttime Noise Study
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Page 39
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Page 41
4.3 STATIONARY SOURCES The working waterfront operations of several Port tenants were confirmed to contribute to both the background ambient noise levels as well as the momentary loud spikes that can be most disruptive. Relatively constant background noise was observed from air handling and crane motors at the NASSCO ship building sites. Other mechanical noises from cooling towers and compressors at manufacturing facilities such as CP Kelco. Late-night noises were also observed at recycling centers.
Industrial Land Uses Noise sources associated with industrial land uses include:
Mechanical equipment operations (e.g., pumps, compressors, and vacuums),
Public safety address systems,
Parking lot noise (e.g., opening and closing of vehicle doors), and
Delivery activities (e.g., use of forklifts, hydraulic lifts, trucks and trains).
Noise levels generated by industrial uses could expose nearby noise-sensitive land uses (e.g., residential units and parks) to levels that may exceed the limits specified in the City’s Noise Ordinance (see Table 5, City of San Diego Noise Limits on page 11). Noise levels associated with stationary industrial sources can vary depending on the source; refer to the long-term monitoring locations D and F in Appendix 3 and the short-term locations ST-16 and ST-24 in Table 10, Short-term Noise Measurements starting on page 47. The sources may be short-term, lasting for only a few seconds; may repeat (e.g., hammer or warning signal); and/or may occur over a longer period (e.g., air conditioning unit/compressor). Loud noises occur from warning horns for moving cranes, heavy gates, and the movement of heavy materials and equipment. Noise spikes as high as 85 dB were recorded and observed to be from material handling, warning devices, and motor accelerations. These spikes did increase the overall hourly noise levels but were neither loud enough nor frequent enough to raise the hourly average over the 75 dB limit, based on monitoring conducted at the sites near the waterfront maritime and other industrial activities. Measurements at sites away from the Port Tenants were found to be well below 75 dB and include traffic-related sources.5
As discussed previously in Section 3.3, Industry Interviews and Documentation, primary noise sources from CP Kelco include motors, compressors, and the gears that operate the fermenter on the western half of the property, west of the BNSF rail line. The main noise sources are the cooling towers adjacent to Dewey Street and the building that houses compressor units. The compressors and cooling towers operate around the clock and are the most noticeable noise source in the early morning. During periods of higher temperatures, the fans may be operating and the building doors may be opened, thereby allowing noise to escape.
5 Noise level measurements conducted at Sites C and E exceeded the 1-hour threshold; however, such exceedances are assumed to be the result of noise spikes from train horns, etc.
Page 42
Ship Building and Repair Yards Noise levels of the ship building and repair yards located adjacent to the Barrio Logan community along the working waterfront, including local traffic noise, typically were 65 to 75 dB along Harbor Drive and dropped off to 50 to 60 dB along Main Street, as can be seen in the short-term locations ST-14 and ST-19 through ST-21. This is due to the combination of shielding from existing buildings and increased distance from the sources. Delivery trucks typically produce a maximum noise level of approximately 75 to 85 dB at a distance of 50 feet, depending, in part, on the speed of the truck. The truck backup alarms typically generate 65 to 75 dB at 50 feet. Additional noise sources, such as noise generated by heavy equipment activities, can also periodically generate high levels of noise in the community.
As discussed previously in Section 3.3, Industry Interviews and Documentation, operations at NASSCO and BAE are sources of nighttime noise. NASSCO’s nighttime noise sources include numerous large and tall cranes, regulatorily mandated crane movement warning horns, and freight rail spur train activity several times a week. NASSCO also uses large air handlers to regulate and circulate air as part of the HVAC systems, which can be a source of both daytime and nighttime noise and contribute to ambient noise. Noise levels may increase in the future if ship repair activity increases. The only BAE late-night noises sources are tugboat horns used to communicate with landside operations during relative infrequent docking activities. Naval Base San Diego, HII, and TAMT do not have nighttime operations.
Recycling Centers Late-night noises were also observed at recycling centers associated with early morning operations including the moving, opening, and closing of trash containers as well as the processing of materials. See Table 10, Short-term Measurements, sites ST-20 and ST-21 for more details.
Page 43
5.0 Noise Measurements and Analyses; Field Inspections
5.1 NIGHTTIME NOISE MONITORING The first week of nighttime noise monitoring occurred between October 25 and 31, 2019, at seven locations throughout Barrio Logan, using Larson Davis Type 2 sound level meters. Monitoring sites were selected to capture daily noise level patterns and statistics continuously over 1-minute intervals.
A second nighttime noise monitoring period occurred between November 11 and 24, 2019, at seven new locations throughout Barrio Logan, again using Larson Davis Type 2 sound level meters. It should be noted that noise measurement location “G” (located at Boston and 32nd) from the first monitoring period was relocated to the area of Main Street and 28th and is now depicted graphically as Location “H.” During this second monitoring period, the sound level meters were programmed to automatically turn on at 12:00 a.m. and shut off at 6 a.m. to capture the nighttime and early morning noise levels. The monitoring locations are shown on page 43 in Figure 12, Zoning (Noise Ordinance Limits) and Noise Monitoring Sites.
The noise measurements recorded during the two monitoring periods include the average hourly (Leq), maximum sound pressure (Lmax), and minimum sound pressure (Lmin), along with the statistical indicators (L10, L50, and L90). By definition, the L10 value is the noise level exceeded for 10 percent of the time and takes into account the peaks in noise. The L10 has been found over the years to be a useful descriptor of road traffic noise as it correlates quite well with the disturbance people feel when close to busy roads. The L50 indicator is the median value of the noise over the measurement period. The L90 value is the noise level exceeded for 90 percent of the time and is a good indicator of the background noise levels (e.g., mechanical/industrial noise). A summary of the average noise level measurements taken between the hours of 12:00 a.m. and 6:00 a.m. each day are provided in Table 8, below.
TABLE 8: AVERAGE DATA (12 A.M. TO 6 A.M. MEASUREMENTS) OCTOBER 25 TO NOVEMBER 24, 2019
Location Leq Lmax Lmin L10 L50 L90
Location A: Main and Beardsley 62.6 104.5 45.8 65.0 56.2 53.0
Location B: National and CCP 60.7 98.4 44.3 62.7 56.0 52.0
Location C: National and Evans 55.6 92.8 41.3 57.7 53.5 49.7
Location D: Harbor south of 75 68.1 93.1 52.5 71.8 61.3 58.5
Location E: Newton and Sicard 59.5 88.4 48.8 61.1 57.4 54.5
Location F: 28th and Harbor Dr 70.9 113 51.5 73.2 63.7 59.3
Location G: Boston and 32nd 58.6 77.4 44.9 60.7 58.4 56.3
Location H: Main and 28th 60.8 95.7 50.0 63.0 58.5 55.5
Page 44
As can be seen in Table 8, the average (Leq) noise levels during both monitoring periods ranged from 56 to 71 dB throughout Barrio Logan. As indicated by the L10 data, 10 percent of the time the noise levels were found to be between 58 and 73 dB. The L10 indicator is a good representative of the fluctuation of traffic along adjacent roadways and associated traffic along the Coronado Bridge and I-5. Based on the L90 data, 90 percent of the time the noise levels are below 60 dB, which indicates the background ambient conditions from industrial sources and, to an extent, traffic in the distance. Therefore, the results indicate road and highway noises comprise much of the baseline noise in the community. The traffic and noise patterns are clearly noted and very consistent on hourly and daily bases. Significant short-term spikes of loud noises were noted in most areas to varying extents. Patterns of such noises indicate regular sources (trains, horns, trucks) and opportunities for intervention.
Several monitoring sites demonstrated notably and objectively loud average and patterns of frequent and very loud spikes in noise levels. It appears these regular and patterned noises are associated with heavy freight rail activity, as well as some activity at the shipyards. As noted earlier in Figure 9, Location A (Main & Beardsley) 1-minute Intervals, November 18 to 24, 2019, and Figure 10, Location A (Main and Beardsley) Hourly Intervals, November 18 to 24, 2019, such patterns of very loud spikes frequently occur during the midnight, 1:00 a.m., and 3:00 a.m. hours. These are attributed to freight rail activities in the nearby BNSFrailyard and rail line. While the noises of the creation and movement of the trains themselvesappear to be within the limits allowed by the FRA, the required blowing of the train hornscould be eliminated with the creation of a quiet zone.
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Tenth AvenueMarine Terminal
Naval StationSan Diego
San DiegoBay
City ofCoronado
SAN DIEGO
NATIONAL CITY
PortTidelands
MAIN ST
MAIN ST
HARBOR DR
NATIONAL AV
HARBOR DR
TARAW
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DELTA ST
ALLEY
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UTH
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VALLEY PL
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ALLEY
ALLEY
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ALLEY
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ST-23
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ST-9 and 10
ST-16
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ST-3
ST-20
ST-14
ST-11
ST-2
ST-4, 5,6and 7
ST-13
ST-15ST-17
ST-1
ST-22S. Las Chollas Creek
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Source: SanGIS (Land Use, Zoning, Parcels, Study Area) Port of San Diego: (Tidelands, Transition Zone, Ocean) USGS: (Streams)
Zoning (Noise Ordinance Limits) & Noise Monitoring SitesBarrio Logan Nighttime Noise Study
Study Area
Port TidelandsTidelands Boundary
Tenth Avenue Marine Terminal
Naval Base San Diego
Zoning
CESA
R C
HAVE
Z PY
Parcels
Long Term Monitoring (8)!(
Short Term Monitoring (24)
Redevelopment Subdistrict (60 dB)
Subdistrict D (75 dB)
- Residential (single/multi-family)- Residential (single/multi-family)
- Uses permitted in IL-3-1 that existed prior to 7-5-1983
Central City Planned District
IH-2-1 (75 dB)
IL-3-1 (75 dB)
RM-3-9 (50 dB)
- Residential (single/multi-family)- Commercial Uses- Commercial/ Limited light industrial- Mixed use encouraged
Subdistrict A (45 dB)
- Uses permitted in IH-2-1
- Residential (single/multi-family)- Uses permitted in IH-2-1 except chrome plating
Subdistrict B (60 dB)
Subdistrict C (45 dB)
5
5
15
75
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Tenth AvenueMarine Terminal
Naval StationSan Diego
San DiegoBay
City ofCoronado
SAN DIEGO
NATIONAL CITY
PortTidelands
MAINST
MAINST
HARBORDR
NATIONAL AV
HARBORDR
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ARD
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BL
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NC
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13
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ST
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S2
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BO
RN
ST
S16
THST
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ND
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SEV
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24
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ST
25
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26
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ST
27
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28
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29
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31
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ST 32
ND
ST
BOSTON AV
BRY
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COTTONWOOD
ST
19
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S3
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17
TH
ST
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L ST
ALLEY
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AV
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12
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AV
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AV
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ST
06
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AV
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PA
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15
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HS
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DEW
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S39TH
ST
WODEN
ST
SB
AN
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ST
S2
9T
HS
T
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ST
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TS
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EV
AN
SS
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HE
NS
LEY
ST
THOR
ST
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OLIV
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OO
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ALLEY
L ST
BOUGAINVIL
LERD
ACACIAST
E 02ND ST
T ST
HARRISONAV
BROAD AV
SP
AR
DEE
ST
ALLEY
STEEL ST
NA
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NA
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ITY
BL
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MARI
NA
PARKWY
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L ST
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ALLEY
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RS
T
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RD
14
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ST
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MC
CANDLESS
BL
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V
21
ST
ST ALLEY
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MIL
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BU
RN
SC
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ALLEY
IRVINGAV
16
TH
ST
NEWTON AV
FRANKLIN AV
ALLEY
WEBSTER AV
Z ST
BETAST
ALLEY
NEWTON
AV
36TH
ST
ALLEY
VALLE AV
LOGAN AV
EA
RL
ST
ALLEY
NEWTONAV
SILKTREE TR
MARTIN AV
SG
REG
OR
YS
T
ETA ST
PRIVATE RD
ALLEY
GAMMA ST
DELTA ST
ALLEY
BOSTON AV
ALPHA ST
EVERETTAV
SO
UTH
LO
OK
AV
VALLEY PL
CLINTON ST
ALLEY
ALLEY
GREELY AV
MARTIN AV
SUPERIOR ST
VALLE AV
ALLEY
ALLEY
TEAK ST
FLORENCE ST
HEMLOCK ST
ALLEY
SUPERBA ST
SICARD
ST
CROSBYRD
AD
AS
T
SCHLE
Y
ST
CONVENTIONW
Y
RA
VEN
SC
RO
FT
AV
ST-23
ST-19
ST-18
ST-21
ST-8
ST-9 and 10
ST-16
ST-12
ST-24
ST-3
ST-20
ST-14
ST-11
ST-2
ST-4, 5,6and 7
ST-13
ST-15ST-17
ST-1
ST-22S. Las Chollas Creek
Las C
hol la
s Cre
ek
F
B
A
C
G
ED
H
° 0 1,000 2,000500Feet
2/20
/202
0JN
H:\P
DAT
A\1
7426
7\G
IS\M
XD
\Zon
ingN
oise
Ord
inan
ce_N
oise
Mon
itorin
gKO
.mxd
Source: SanGIS (Land Use, Zoning, Parcels, Study Area) Port of San Diego: (Tidelands, Transition Zone, Ocean) USGS: (Streams)
Zoning (Noise Ordinance Limits) & Noise Monitoring SitesBarrio Logan Nighttime Noise Study
Study Area
Port TidelandsTidelands Boundary
Tenth Avenue Marine Terminal
Naval Base San Diego
Zoning
CESA
RCH
AVE
ZPY
Parcels
Long Term Monitoring (8)!(
Short Term Monitoring (24)
Redevelopment Subdistrict (60 dB)
Subdistrict D (75 dB)
- Residential(single/multi-family)- Residential (single/multi-family)
- Uses permitted in IL-3-1that existed prior to 7-5-1983
Central CityPlanned District
IH-2-1 (75 dB)
IL-3-1 (75 dB)
RM-3-9 (50 dB)
- Residential (single/multi-family)- Commercial Uses- Commercial/
Limited light industrial- Mixed use encouraged
Subdistrict A (45 dB)
- Uses permitted in IH-2-1
- Residential(single/multi-family)
- Uses permitted in IH-2-1except chrome plating
Subdistrict B (60 dB)
Subdistrict C (45 dB)
5
5
15
75
Figure 12. Zoning (noise ordinance Limits) & noise monitoring sites
Page 45
Page 46
THIS PAGE INTENTIONALLY LEFT BLANK for double-sided printing
Page 47
Table 9, Observed Noise Levels (Hourly Measurements) October 25 to November 24, 2019, is a summary of the observations based on both periods of nighttime noise monitoring at 8 locations6 (A-H) between the hours of midnight and 6:00 a.m. between October 25 and November 24, 2019.
TABLE 9. OBSERVED NOISE LEVELS (HOURLY MEASUREMENTS)OCTOBER 25 TO NOVEMBER 24, 2019
Site
Average Noise Levels (Hourly Measurements) (dB)
Noise Ordinance
Limit1
Typical 1-hour
Averages
% > Noise Ordinance
Limit Spike
Ranges2
Location A is closest to the BNSF rail yard. It exhibits a large range in 1-min interval data. The pattern of very loud spikes suggests noises are from train and rail yard operations and local traffic. The location also has a quiet baseline (minimum) noise levels. The measurements exceeded the Noise Ordinance limits for stationary sources most of the time due allowable noise from mobile sources. (See Appendix 3 for measurements.)
Monitor ID A
Nearest Cross Street
Main @ Beardsley
Zone BLPD-RDV60 55-70 63% 70-87
Location B is at the central Barrio Logan business district two blocks west of I-5. It demonstrates a clear, consistent traffic pattern with relatively narrow noise ranges by hour and day with steady increases from 4 a.m. to 6 a.m. A large number of significant noise spikes increases the hourly averages. The minimum levels are relatively quiet. The measurements are mostly compliant with noise limits until the commuter traffic pattern increases beginning at 4:00 a.m. (See Appendix 3 for measurements.)
Monitor ID B
Nearest Cross Street
National @Cesar Chavez
Zone BLPD-RDV 60 55-69 41% 70-85
Location C is in a residential area and has the most consistent and narrow noise ranges. With few exceptions, it is almost all traffic noise with very few noise spikes. This site exhibited the quietest minimum and average nighttime noise levels. However, the measurements exceeded the applicable noise limits 100 percent of the time because the noise limit is 45 dBA. (See Appendix 3 for measurements.)
Monitor ID C
Nearest Cross Street
National @ Evans
Zone BLPD-A 45 47-60 100% 60-86
6 Locations are approximate for privacy reasons.
TABLE 9. OBSERVED NOISE LEVELS (HOURLY MEASUREMENTS) OCTOBER 25 TO NOVEMBER 24, 2019, CONTINUED
Page 48
Site
Average Noise Levels (Hourly Measurements) (dB)
Noise Ordinance
Limit1
Typical 1-hour
Averages
% > Noise Ordinance
Limit Spike
Ranges2
Location D is on Harbor Drive and has a very consistent pattern and wide range of noise levels that reflect local traffic as the primary source. The low noise levels are relatively elevated at 55 dB, and the maximum levels are generally less than 72 dB with frequent loud spikes associated with nearby rail and local truck traffic. The measurements are largely consistent with commuter traffic patterns as traffic and noise levels both show increases beginning at 4:00 a.m. The noise levels never exceeded the 75 dB Noise Ordinance limits. (See Appendix 3 for measurements.)
Monitor ID D
Nearest Cross Street
Harbor @ S. SR-75North of Sampson
Zone BLPD-D 75 61-75 0% 60-86
Location E is in a residential neighborhood adjacent to a warehouse. It exhibits a very narrow noise range (50-60 dB) between midnight and 4:00 a.m. with regular and frequent loud spikes throughout the night and subtle, but measurable, increases consistent with commuter traffic patterns beginning at 4:00 a.m. The source of the baseline noise appears to be traffic from the I-5 freeway and neighboring streets with spikes from less frequent local traffic and rail service and possibly operations at nearby warehouse and recycling facilities.3 The measurements exceeded the noise limits 100% of the time. (See Appendix 3 for measurements.)
Monitor ID E
Nearest Cross Street
Newton @ Sicard
Zone BLPD-A
45 53-66 100% 66-77
Location F is on Harbor Drive near the entrance to NASSCO and has a loud and highly variable hourly noise range of 62–78 dB. The 1-minute intervals show an even greater variation and range with many very loud spikes throughout the night, suggesting a combination of local truck traffic, rail activities, and maritime operational noises. The measurements are largely compliant with the City Noise Ordinance. (See Appendix 3 for measurements.)
Monitor ID F
Nearest Cross Street
28th @ Harbor
Zone IH-2-175 62-78 6% 78-94
Location G is in a residential area adjacent to the I-5 freeway and documented the most narrow and consistent range of noises. The noise samples always exceeded the nighttime Noise Ordinance limit. The noise source is clearly traffic from the adjacent I-5 and thus, this monitor site was moved to another location (Site H) after the first week of monitoring to collect data from less obvious noise sources. (See Appendix 3 for measurements.)
Monitor ID G
Nearest Cross Street
Boston @ 32nd
Zone BLPD-C45 54-65 100% 65-69
TABLE 9. AVERAGE OCTOBER NOISE LEVELS (24-HOUR MEASUREMENTS), CONTINUED
Page 49
Site
Average Noise Levels (Hourly Measurements) (dB)
Noise Ordinance
Limit1
Typical 1-hour
Averages
% > Noise Ordinance
Limit Spike
Ranges2
Location H is in an industrial/commercial area and was a noise monitoring site for the second phase of monitoring in November 2019. The noise data reflects primarily distant traffic and possible machine noises. The hourly and daily ranges are very narrow and consistent and steady between 54 and 64 dB. Noise spikes were relatively quiet and infrequent. The measurements exceeded the noise limits 42% of the time, but mostly during the 4:00-6:00 a.m. commuter traffic hours. (See Appendix 3 for measurements.)
Monitor ID H
Nearest Cross Street
28th @ Main
Zone BLPD-D
60 54-64 42% 65-75
1 Noise Ordinance limits (10:00 p.m. to 7:00 a.m.) are applicable to stationary noise sources and is based on hourly measurements. 2 Noise spikes are based on 1-minute interval measurements.
3 See Table 10. Short-term Noise Measurements, locations ST-17 and ST-18.
Page 50
As noted in Tables 8 and 9, the measured hourly noise levels exceeded the applicable Noise Ordinance late nighttime limits in all but one site, Location D, which has a 75-dB limit. All of the monitored locations in zones with the 45-dB residential limit exceeded the limit 100 percent of the time. In most cases, the noise in excess of the limits was attributed to rail-related sources (trains and warning horns) and traffic. As noted earlier, these non-stationary or mobile sources are not subject to the Noise Ordinance limits.
The long-term noise monitoring data collected was plotted in hourly (Leq) and 1-minute intervals for each of the eight monitoring sites (A-H). On the next page, Figure 13, Site A (Main Street & Beardsley) - Hourly and 1-Minute Interval Monitoring Results, illustrates the monitoring data for monitoring Site A. Figures for each of the 8 monitoring sites (A-H) are provided in Appendix 3. The figures identify the zone in which each monitor was located as well as the applicable Noise Ordinance limit for stationary sources for reference.
As shown in Tables 8 and 9, late nighttime noise levels in the community potentially exceed the applicable City Noise Ordinance thresholds due to the combination of traffic and industrial-related activities primarily associated with rail. It is also important to note that three of the eight monitors were located in a zone with a 45-dB noise limit. Monitoring suggests that it may not be possible to comply with a 45-dB limit in these areas given the traffic, trains, and other industrial uses that are allowed. After monitoring concluded, additional interviews, site inspections, and testing were conducted over the course of late November and December 2019 to observe, better understand, and record the sources. These additional noise measurements are described below.
Page 49
FIGURE 13. SITE A (MAIN STREET & BEARDSLEY) - HOURLY AND 1-MINUTE INTERVAL MONITORING RESULTS
LLooccaattiioonn LLeeqq LLmmaaxx LLmmiinn LL1100 LL5500 LL9900
A: Main and Beardsley 62.6 104.5 45.8 65.0 56.2 53.0
SSiittee
AAvveerraaggee OOccttoobbeerr NNooiissee LLeevveellss ((2244--hhoouurr MMeeaassuurreemmeennttss)) ((ddBB))
NNooiissee OOrrddiinnaannccee LLiimmiitt11 TTyyppiiccaall
11--hhoouurr AAvveerraaggeess %% >> NNooiissee OOrrddiinnaannccee LLiimmiitt SSppiikkee RRaannggeess22
Location A is closest to BNSF and MTS rail yards. It exhibits a large range in 1-min interval data. The pattern of very loud spikes suggests noises are from train and railyard operations and local traffic. The location also has a quiet baseline (minimum) noise levels. The measurements are mostly noncompliant with noise limits. (See AAppppeennddiixx 33 for measurements.)
Monitor ID A
NearestCross Street
Main @ Beardsley
Zone BLPD-RDV 60 55-70 63% 70-87
50 dBA
60 dBA
65 dBA
70 dBA
75 dBA
55 dBA
5 to 6 AM4 to 5 AM3 to 4 AM2 to 3 AM1 to 2 AM12 to 1 AM
Friday, 11/22Saturday, 11/23Sunday, 11/24
Monday, 11/18Tuesday, 11/19Wednesday, 11/20Thursday, 11/21
61.2 61.2
63.4
60.8
62.7
71.3
59.559.560.4
59.2
69.2
67.5
68.567.8
58.258.256.3
59.4
56.2
65.2
60.4
64.8
58.358.3
55.6
56.4
68.7
58.7
66.2
61.2
59.159.1
58.7
61.3
64.663.7
66.1
65.5 65.565.5
63.0
65.4
67.567.7
66.967.1
67.967.9
50 dBA
60 dBA
65 dBA
70 dBA
75 dBA
55 dBA
5 to 6 AM4 to 5 AM3 to 4 AM2 to 3 AM1 to 2 AM12 to 1 AM
Friday, 10/25Saturday, 10/26Sunday, 10/27Monday, 10/28Tuesday, 10/29Wednesday, 10/30Thursday, 10/31
61.6
59.157.8
58.959.1
60.7
62.265.6
65.8
59.4
63.5
66.8
60.9
69.5
63.9
58.1
65.567.0
58.2
66.3
62.3
56.1
63.5
66.5
62.060.2
60.1
58.1
61.7
64.365.0
67.3
61.2
57.5
65.366.3
58.858.8
55.955.955.055.0 55.855.8
64.964.9
67.367.3
50 dBA
60 dBA
65 dBA
70 dBA
75 dBA
55 dBA
5 to 6 AM4 to 5 AM3 to 4 AM2 to 3 AM1 to 2 AM12 to 1 AM
Friday, 10/25Saturday, 10/26Sunday, 10/27Monday, 10/28Tuesday, 10/29Wednesday, 10/30Thursday, 10/31
61.6
59.157.8
58.959.1
60.7
62.265.6
65.8
59.4
63.5
66.8
60.9
69.5
63.9
58.1
65.567.0
58.2
66.3
62.3
56.1
63.5
66.5
62.060.2
60.1
58.1
61.7
64.365.0
67.3
61.2
57.5
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58.858.8
55.955.955.055.0 55.855.8
64.964.9
67.367.3
50 dBA
60 dBA
65 dBA
70 dBA
75 dBA
55 dBA
5 to 6 AM4 to 5 AM3 to 4 AM2 to 3 AM1 to 2 AM12 to 1 AM
Friday, 11/15Saturday, 11/16Sunday, 11/17
Monday, 11/11Tuesday, 11/12Wednesday, 11/13Thursday, 11/14
60.1
59.058.3
56.5
59.4
61.8
58.3
55.557.0
59.4 60.7
62.962.460.3
50.8
62.3
62.4
65.8
58.360.0
64.4
56.7
62.5
66.7
59.3
58.1
52.8 55.3
67.666.8
57.2
55.0
55.7
53.7
63.7 65.4
57.657.6
69.369.368.568.5
56.856.8
61.461.4
67.067.0
50 dBA
60 dBA
65 dBA
70 dBA
75 dBA
55 dBA
5 to 6 AM4 to 5 AM3 to 4 AM2 to 3 AM1 to 2 AM12 to 1 AM
Friday, 11/22Saturday, 11/23Sunday, 11/24
Monday, 11/18Tuesday, 11/19Wednesday, 11/20Thursday, 11/21
61.2 61.2
63.4
60.8
62.7
71.3
59.559.560.4
59.2
69.2
67.5
68.567.8
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59.4
56.2
65.2
60.4
64.8
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55.6
56.4
68.7
58.7
66.2
61.2
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58.7
61.3
64.663.7
66.1
65.5 65.565.5
63.0
65.4
67.567.7
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67.967.9
Figure 13. site a (main street & beardsLey) - hourLy and 1-minute intervaL monitoring resuLts
Site A: Main and Beardsley
60 dBA Noise Ordinance
Limit for the BLPD – Redevelopment Zone
60 dBA Noise Ordinance
Limit for the BLPD – Redevelopment Zone
October 24 to 31, 2019
HOURLY INTERVALS
MINUTE INTERVALS
November 11 to 17, 2019 November 18 to 24, 2019
6 AM5 AM4 AM3 AM2 AM1 AM12 AM45 dBA
50 dBA
55 dBA
60 dBA
65 dBA
70 dBA
75 dBA
80 dBA
85 dBA
90 dBA
74.1
84.786.7
80.9
72.9
77.0
82.7
6 AM5 AM4 AM3 AM2 AM1 AM12 AM45 dBA
50 dBA
55 dBA
60 dBA
65 dBA
70 dBA
75 dBA
80 dBA
85 dBA
90 dBA
69.1
74.3
80.377.9
72.8
86.9
77.0
6 AM5 AM4 AM3 AM2 AM1 AM12 AM45 dBA
50 dBA
55 dBA
60 dBA
65 dBA
70 dBA
75 dBA
80 dBA
85 dBA
90 dBA
74.2
87.6
84.485.0
77.6
72.9
86.1
50 dBA
60 dBA
65 dBA
70 dBA
75 dBA
55 dBA
5 to 6 AM4 to 5 AM3 to 4 AM2 to 3 AM1 to 2 AM12 to 1 AM
Friday, 11/15Saturday, 11/16Sunday, 11/17
Monday, 11/11Tuesday, 11/12Wednesday, 11/13Thursday, 11/14
60.1
59.058.3
56.5
59.4
61.8
58.3
55.557.0
59.4 60.7
62.962.460.3
50.8
62.3
62.4
65.8
58.360.0
64.4
56.7
62.5
66.7
59.3
58.1
52.8 55.3
67.666.8
57.2
55.0
55.7
53.7
63.7 65.4
57.657.6
69.369.368.568.5
56.856.8
61.461.4
67.067.0
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Source: SanGIS (Land Use, Zoning, Parcels, Study Area) Port of San Diego: (Tidelands, Transition Zone, Ocean) USGS: (Streams)
Zoning (Noise Ordinance Limits) & Noise Monitoring SitesBarrio Logan Nighttime Noise Study
Study Area
Port TidelandsTidelands Boundary
Tenth Avenue Marine Terminal
Naval Base San Diego
Zoning
CESA
R C
HAVE
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Parcels
Long Term Monitoring (8)!(
Short Term Monitoring (24)
Redevelopment Subdistrict (60 dB)
Subdistrict D (75 dB)
- Residential(single/multi-family)- Residential (single/multi-family)
- Uses permitted in IL-3-1that existed prior to 7-5-1983
Central CityPlanned District
IH-2-1 (75 dB)
IL-3-1 (75 dB)
RM-3-9 (50 dB)
- Residential (single/multi-family)- Commercial Uses- Commercial/
Limited light industrial- Mixed use encouraged
Subdistrict A (45 dB)
- Uses permitted in IH-2-1
- Residential(single/multi-family)
- Uses permitted in IH-2-1except chrome plating
Subdistrict B (60 dB)
Subdistrict C (45 dB)
5
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Page 51
Page 52
THIS PAGE INTENTIONALLY LEFT BLANK for double-sided printing
Page 53
5.2 SHORT-TERM NOISE MONITORING Noise is cumulative from multiple sources; thus, it can be difficult to enforce compliance or assign responsibility to mitigate impacts. Additional noise monitoring locations were selected to supplement and better understand the data collected during the two phases of long-term monitoring throughout the Barrio Logan community. These observations looked at the minimum, maximum, and average levels combined with personal observations to better determine the location and source of multiple sources.
Twenty-four short-term noise measurements (ST-1 to ST-24) were taken at 20 measurement sites to establish the existing ambient noise environment in nearby neighborhoods. The measurements were taken on November 21, 22, and 23, 2019, between the hours of midnight and 6:00 a.m., using a Larson Davis Model LxT Type 1 sound level meter. Each measurement was conducted manually by a trained professional noise expert. The meter was mounted on a tripod with a wind screen to reduce the effects of wind-related interference. The short-term measurements were conducted at each site for approximately 15 minutes, with the exceptions of when a train or train horn was observed. Those measurements were only taken for approximately one minute to capture the noise characteristics of the train, as can be seen in the results for ST-5 and ST-6. A Larson Davis CAL200 calibrator was used to calibrate the meter for each measurement.
The 24 short-term monitoring locations are shown with the eight long-term monitoring locations in Figure 12 on page 43. The results of the monitoring are shown in Table 10 starting on the next page. Seven of the 24 short-term measurements (ST-5, 6, 8, 9, 11, 17, and 18) exceed the applicable Noise Ordinance limits for stationary sources. As noted with themeasurements at the long-term monitoring sites, four of the seven were attributed to trainactivity at the time. One was attributed to background traffic noise. The measurementsgreater than the Noise Ordinance limits due to train and traffic noises do not violate theNoise Ordinance. Two measurements (ST-17 and ST-18) were attributed to mechanicalequipment operation and active outdoor industrial operations including forklifts, loading oftrucks, and processing of recyclable materials. Both were close to the zoning boundary andas a result, the applicable Noise Ordinance limit was the average of the two adjacent zones.In both these cases, the average was 52.5 dB from zones with 45-dB and 60-dB limits. It isnoted that the measurements would have been compliant with the higher of the averagedzones. Further, it is possible the industrial operations may also be compliant with the NoiseOrdinance if the measurements were taken at their property lines pursuant to the NoiseOrdinance.
Page 54
TABLE 10. SHORT-TERM NOISE MEASUREMENTS Highlighted text indicates measurements and sites that exceeded the applicable Noise Ordinance limits.
Site and Summary of Results Noise Measurements (dB)
ST-1: The noise environment along Sigsbee was defined primarily by traffic along Harbor Boulevard and rail activities. Additionally, background mechanical/industrial noise was also present from waterfront industrial activities as can be seen in the L90 data. The measurements were compliant with noise limits.
Location: Sigsbee
Descriptionof Noise: Traffic Noise
Date & Time:
11/21/2019,3:41 a.m.
Leq Lmax Lmin L10 L50 L90
55.4 63.3 51.0 57.2 53.7 52.2
Zone: BLPD-R Noise Ordinance Limit: 60
Adjacent Zone: -- Arithmetic Mean: 60
ST-2: The noise environment at Sigsbee and National was defined primarily by local traffic. Additional sources of noise include HVAC noise from nearby commercial and industrial uses. The measurements were compliant with noise limits.
Location: National North
Description of Noise:
Mechanical Noise
Date & Time:
11/21/2019, 3:56 a.m.
Leq Lmax Lmin L10 L50 L90
52.1 55.7 50.2 52.9 51.8 50.5
Zone: BLPD-R Noise Ordinance Limit: 60
Adjacent Zone: -- Arithmetic Mean: 60
ST-3: The noise environment along Logan Avenue was defined by traffic along I-5 and background traffic noise along Coronado Bridge. There was also background noise from mechanical/industrial. The combination of the background noise and background traffic noise elevated the L90 data. The measurements were compliant with noise limits.
Location: Logan
Description of Noise:
MechanicalNoise
Date & Time:
11/21/2019,4:18 a.m.
Leq Lmax Lmin L10 L50 L90
54.2 57.3 51.4 56.1 53.6 52.1
Zone: BLPD-R Noise Ordinance Limit: 60
Adjacent Zone: --
Arithmetic Mean: 60
ST-4: The noise environment along Logan Avenue was defined by traffic along I-5 and background traffic noise along Coronado Bridge. There was also background noise from mechanical/industrial. The combination of the background noise and background traffic noise elevated the L90 data. The measurements were compliant with noise limits.
Location: Newton North
Description of Noise:
Traffic andMechanical in Background
Date & Time:
11/21/2019,4:36 a.m.
Leq Lmax Lmin L10 L50 L90
48.9 55.5 46.0 51.4 47.5 47.0
Zone: BLPD-R Noise Ordinance Limit: 60 dB
Adjacent Zone: --
Arithmetic Mean: 60 dB
ST-5 : The noise environment included traffic along I-5 and background traffic noise along Coronado Bridge and rail activities as a train was approaching a crossing and the horn was sounded. The measurements were compliant with noise limits over 90 percent of the time.
Location: Newton North
Description of Noise:
Train inBackground
Date & Time:
11/21/2019, 4:52 a.m.
Leq Lmax Lmin L10 L50 L90
60.2 73.2 46.6 63.5 49.0 47.3
Zone: BLPD-R Noise Ordinance Limit: 60
Adjacent Zone: -- Arithmetic Mean: 60
ST-6 : The noise environment included traffic along I-5 and background traffic noise along Coronado Bridge and rail activities as a train was approaching the next crossing located slightly farther away and the horn was sounded. The measurements were compliant with noise limits over 90 percent of the time.
Location: Newton North
Description of Noise:
Train inBackground
Date & Time:
11/21/2019, 4:53 a.m.
Leq Lmax Lmin L10 L50 L90
58.4 69.7 46.8 63.0 47.8 47.1
Zone: BLPD-R Noise Ordinance Limit: 60
Adjacent Zone: -- Arithmetic Mean: 60
TABLE 10, SHORT-TERM NOISE MEASUREMENTS, CONTINUED
Page 55
Site and Summary of Results Noise Measurements (dB)
ST-7: The noise environment along Logan Avenue, after the train departed, was defined by traffic along I-5 and background traffic noise along Coronado Bridge. There was also background noise from mechanical/industrial. The combination of the background noise and background traffic noise elevated the L90 data. The measurements were compliant with noise limits.
Location: Newton North
Descriptionof Noise: Traffic Noise
Date & Time:
11/21/2019,4:55 a.m.
Leq Lmax Lmin L10 L50 L90
48.4 55.1 45.4 49.9 47.9 45.8
Zone: BLPD-R
Noise Ordinance Limit: 60
Adjacent Zone: --
Arithmetic Mean: 60
ST-8 : The noise environment was defined primarily by local traffic. Other sources included some aircraft noise and freight train grade crossing. The measurements exceeded the noise limits 50 percent of the time.
Location: Cesar Chavez Parkway West
Description of Noise:
Train in Background
Date & Time:
11/22/2019, 12:52 a.m.
Leq Lmax Lmin L10 L50 L90
59.7 64.4 53.6 62.3 60.1 54.6 Zone: BLPD-R
Noise Ordinance Limit: 60 Adjacent Zone: --
Arithmetic Mean: 60
ST-9 : The primary source of noise at this location consisted entirely of a freight train crossing at Caesar Chavez Parkway. The measurements exceed the noise limits over 50 percent of the time.
Location: Cesar Chavez Parkway West
Description of Noise: Freight Train
Date & Time:
11/21/2019, 1:02 a.m.
Leq Lmax Lmin L10 L50 L90 81.5 90.7 66.4 87.8 67.9 66.9
Zone: BLPD-R Noise Ordinance Limit: 60
Adjacent Zone: D (75) Arithmetic Mean: 67.5
ST-10: The noise environment, after the train departed, was defined by mechanical/industrial sources and background traffic along the Coronado Bridge. The measurements were compliant with noise limits.
Location: Cesar Chavez Parkway West
Description of Noise:
Mechanical Noise
Date & Time:
11/22/2019, 1:04 a.m.
Leq Lmax Lmin L10 L50 L90 57.3 58.6 56.2 57.7 57.2 56.9
Zone: BLPD-R Noise Ordinance Limit: 60
Adjacent Zone: D (75)
Arithmetic Mean: 67.5
ST-11 : The noise environment at this location was defined by traffic along I-5 and background traffic noise along Coronado Bridge. There was also background mechanical/industrial noise. The combination of these background noises elevated the L90 data. The measurements were compliant with noise limits over 90 percent of the time.
Location: National and Evans
Description of Noise:
Traffic andMechanical in Background
Date & Time:
11/22/2019,1:17 a.m.
Leq Lmax Lmin L10 L50 L90
49.9 55.9 45.8 52.7 48.3 47.7
Zone: BLPD-R Noise Ordinance Limit: 60
Adjacent Zone: A (45)
Arithmetic Mean: 52.5
ST-12: The noise environment at this location was defined by local traffic and primarily background noise from mechanical/industrial sources at the waterfront. The mechanical/industrial sources elevated the L90 data to be similar to the average noise levels. The measurements were compliant with noise limits.
Location: Main and Evans
Description of Noise:
MechanicalNoise
Date & Time:
11/22/2019,1:31 a.m.
Leq Lmax Lmin L10 L50 L90
51.4 53.0 49.8 52.1 51.3 50.5
Zone: BLPD-R Noise Ordinance Limit: 60
Adjacent Zone: B (60)
Arithmetic Mean: 60
Location: Sampson
Description of Noise:
Mechanical Noise
Leq Lmax Lmin L10 L50 L90
49.3 51.6 44.8 50.6 49.2 48.4
Zone: BLPD-A
TABLE 10, SHORT-TERM NOISE MEASUREMENTS, CONTINUED
Page 56
Site and Summary of Results Noise Measurements (dB)
ST-13: The noise environment at this location was defined by local traffic and primarily background noise from mechanical/industrial sources at the waterfront. The mechanical/industrial sources elevated the L90 data to be similar to the average noise levels. The measurements were compliant with noise limits.
Date & Time:
11/22/2019, 1:45 a.m.
Noise Ordinance Limit: 45 Adjacent Zone: B (60)
Arithmetic Mean: 52.5
ST-14: The noise environment at this location was defined by local traffic and primarily background noise from mechanical/industrial sources at the waterfront. The mechanical/ industrial sources elevated the L90 data to be similar to the average noise levels. The measurements were compliant with noise limits.
Location: Main & Sampson
Description of Noise:
Mechanical Noise
Date & Time:
11/22/2019, 1:58 a.m.
Leq Lmax Lmin L10 L50 L90
51.9 55.3 50.5 522.8 51.7 51.0
Zone: BLPD-D Noise Ordinance Limit: 75
Adjacent Zone: B (60)
Arithmetic Mean: 67.5
ST-15: The noise environment located at Sampson and Belt consisted primarily of mechanical noise coming from the southwest at the waterfront operations located across Harbor Boulevard along with traffic noise from Harbor Boulevard. The measurements were compliant with noise limits.
Location: Sampson West
Description of Noise:
Mechanical Noise
Date & Time:
11/23/2019,2:11 a.m.
Leq Lmax Lmin L10 L50 L90
72.1 73.4 71.0 72.5 72.0 71.7
Zone: BLPD-D Noise Ordinance Limit: 75
Adjacent Zone: -- Arithmetic Mean: 75
ST-16: The noise environment at Dewey consisted primarily of mechanical noise from a cooling tower and compressors located at CP Kelco. The measurements were compliant with noise limits over 90 percent of the time.
Location: Dewey
Description of Noise:
Traffic and Mechanical in Background
Date & Time:
11/22/2019, 2:21 a.m.
Leq Lmax Lmin L10 L50 L90
56.6 62.2 55.3 57.0 56.3 55.6
Zone: BLPD-D Noise Ordinance Limit: 75
Adjacent Zone: -- Arithmetic Mean: 75
ST-17 : The noise environment located at Sicard consisted primarily from traffic noise along I-5, plus nearby industrial noise from New Leaf and warehouse noise associated with the TQM Food Service company on Newton Avenue. The noise observed from the New Leaf building included mechanical equipment operation. At the time, operations at TQM Food Service included various loading operations, such as a forklift running and truck loading. Measurements exceeded the noise limits 100 percent of the time.
Location: Sicard
Description of Noise:
MechanicalNoise
Date & Time:
11/22/2019,2:38 a.m.
Leq Lmax Lmin L10 L50 L90
55.8 58.5 53.2 57.1 55.6 53.9
Zone: BLPD-B
Noise Ordinance Limit: 60
Adjacent Zone: A (45)
Arithmetic Mean: 52.5
ST-18 : The noise environment located on 27th Street consisted primarily of noise along I-5 as well as noise associated with the IMS recycling center. This included the moving, opening, and closing of trash containers as well as the processing of materials. The sound of material processing included the grinding and/or crushing of plastics and other sorted material. The measurements exceeded the noise limits over 100 percent of the time.
Location: 27th
Description of Noise:
Traffic andMechanical in Background
Date & Time:
11/23/2019,2:57 a.m.
Leq Lmax Lmin L10 L50 L90
54.9 59.1 52.9 56.9 54.3 53.2
Zone: BLPD-A
Noise Ordinance Limit: 45
Adjacent Zone: B (60)
Arithmetic Mean: 52.5
TABLE 10, SHORT-TERM NOISE MEASUREMENTS, CONTINUED
Page 57
Site and Summary of Results Noise Measurements (dB)
ST-19: The noise environment at 26th street consisted primarily of nearby mechanical/industrial noise from Port tenants as well as background traffic from local roadways. The measurements were compliant with noise limits.
Location: 26th
Description of Noise:
Traffic and Mechanical in Background
Date & Time:
11/23/2019, 3:15 a.m.
Leq Lmax Lmin L10 L50 L90
53.2 55.0 49.8 53.9 53.2 52.2
Zone: BLPD-D Noise Ordinance Limit: 75
Adjacent Zone: B (60) Arithmetic Mean: 67.5
ST-20: The noise environment located at Main and 27th consisted primarily of nearby mechanical/ industrial noise from Port tenants as well as activities associated with the recycling center. The IMS Recycling Center at 2697 Main Street included the moving, opening, and closing of trash containers as well as the processing of materials. The sound of material processing included the grinding and/or crushing of plastics and other sorted material. The measurements were compliant with noise limits.
Location: Main & 27th
Description of Noise:
MechanicalNoise and aRecycling Center
Date & Time:
11/23/2019,3:31 a.m.
Leq Lmax Lmin L10 L50 L90
58.4 62.8 54.5 60.7 57.2 55.2
Zone: BLPD-D
Noise Ordinance Limit: 75
Adjacent Zone: B (60)
Arithmetic Mean: 67.5
ST-21: The noise environment located at 28th Street consisted primarily of nearby mechanical/ industrial noise from Port tenants, as well as activities associated with the IMS Recycling Center at 2697 Main Street. Recycling center activities included the moving, opening, and closing of trash containers and materials processing (i.e., grinding and/or crushing of plastics and other sorted material). Additional noise sources included background noise from I-5. The measurements were compliant with noise limits.
Location: 28th St near Main St
Description of Noise:
MechanicalNoise and aRecycling Center
Date & Time:
11/23/2019,3:45 a.m.
Leq Lmax Lmin L10 L50 L90
58.1 72.3 56.6 58.7 57.8 57.4
Zone: IH-2-1
Noise Ordinance Limit: 75
Adjacent Zone: D (75)
Arithmetic Mean: 75
ST-22: The noise environment located at 31st Street included a combination of background mechanical/industrial noise as well as background noise from I-5. The measurements were compliant with noise limits.
Location: 31st St, near Main St
Description of Noise:
Traffic and Mechanical in Background
Date & Time:
11/23/2019, 4:12 a.m.
Leq Lmax Lmin L10 L50 L90
55.0 62.2 50.9 59.4 52.2 51.3
Zone: IH-2-1 Noise Ordinance Limit: 75
Adjacent Zone: B (60) Arithmetic Mean: 67.5
ST-23: The noise environment at this location consisted primarily of background noise from I-5 and I-15. The measurements were compliant with noise limits.
Location: I-15, near MainSt and WabashBlvd
Description of Noise: Traffic Noise
Date & Time:
11/23/2019, 4:33 a.m.
Leq Lmax Lmin L10 L50 L90
58.8 63.4 55.3 61.3 57.6 55.7
Zone: IH-2-1 Noise Ordinance Limit: 75
Adjacent Zone: D (75) Arithmetic Mean: 75
Location:
Harbor South, between Bay Ave and Wabash Blvd
Leq Lmax Lmin L10 L50 L90
69.9 72.8 63.6 70.7 69.7 69.2
Zone: IH-2-1 Noise Ordinance Limit: 75
TABLE 10, SHORT-TERM NOISE MEASUREMENTS, CONTINUED
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Site and Summary of Results Noise Measurements (dB)
ST-24: The noise environment located at Harbor South included nearby mechanical/industrial noise from Port tenants as well as traffic along Harbor Boulevard and the sound of a train horn in the distance. The measurements were compliant with noise limits.
Description of Noise:
Train in Background
Date & Time:
11/23/2019,5:01 a.m.
Adjacent Zone: --
Arithmetic Mean: 75
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6.0 Findings and Recommendations 6.1 FINDINGS As discussed above, the Study determined rail operations and traffic represent the most significant nighttime noises in the Barrio Logan area. Heavy freight rail activities are restricted to the late nighttime hours due to the temporal separation requirements with passenger rail services that share the same tracks. Further, the nature of the freight train noises is inherent in the basic design of the rail car coupling system, which creates loud bangs, clanks, and screeching sounds as the cars are assembled into trains. The design of the cars is not likely or expected to change; however, FRA noise limits for such operations are high and do not appear to be exceeded.
Additionally, much of the baseline noise is generated by vehicular traffic on both local roads and the I-5 and SR-75 freeways. The freeway noise is regular and predictable with clear commuter patterns throughout the day and week. Local roadway traffic follows similar commuter patterns. In some ways, the local traffic has a more disruptive impact as the proximity and magnitude of the noise varies greatly, leading to relatively sudden spikes of noise with each passing vehicle versus the constant hiss or drone of the collective freeway traffic. Further, industrial operations along the working waterfront contribute to both the background ambient noise levels as well as momentary loud spikes that can be most disruptive, as demonstrated from short-term monitoring sites (ST-17 and ST-18).
Based on the data and discussion provided in Sections 4.0 and 5.0 of the Study, the following summarizes the findings of existing noise conditions within Barrio Logan:
During late night hours, most areas within Barrio Logan are in compliance with theapplicable noise standards and policies most of the time, but also exceed those limitson a frequent and regular basis. The levels that exceeded the hourly limits of theNoise Ordinance resulted from permissible spikes from required train horns, railoperations, and local road and freeway traffic.
Maritime and industrial operations appear to comply with the 75-dB hourly limitestablished by the City of San Diego Noise Ordinance.
Mobile traffic noises generally comply with the 65-dB CNEL (24-hour weightedaverage) for residential areas.
Intermittent, sudden, and significantly louder than ambient noises such as from hornsand bells, and bangs and clanks directly from heavy freight cars and trains, createsignificant disturbances but are generally compliant with current FRA regulations.
While compliant, some of the noise sources involve the use of industrial equipmentand operations that may offer opportunities for reduction of noise over time.Operations are large scale and involve long life-cycle equipment that are expensiveand time consuming to modify. Sudden and loud noise spikes from warning horns andmovement of heavy components are not readily avoidable or mitigable, but otherindustrial equipment and operation sources have mitigation potential. If industrial uses
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are able to transition to electric/battery powered equipment instead of diesel equipment, this may help lower the overall ambient noise levels in the community.
Noise from multiple existing recycling operations in the project area (refer toFigure 2, Existing Land Use, Zoning, Port Transition Zone on page 13) can beimproved through changes in hours of operation and possible enforcement ofdiscretionary permit approvals and zoning use limitations.
6.2 RECOMMENDATIONS The Study Team identified a series of recommended measures that may be implemented by the community to avoid, minimize, and/or mitigate disruptive nighttime noises in Barrio Logan. The best noise management practices prioritize reduction of noise at the source before measures are implemented to mitigate noise effects. The recommendations fall into four key categories: (A) physical improvements; (B) operational changes; (C) compliance with existing regulations, policies, and standards; and (D) best management practices and tools. Specific noise reduction measures are listed by category below. Further details are provided following the summarized list.
A. Physical Improvements to Reduce and Mitigate Noise Sources
(1) Industrial equipment, building, and mechanical upgrades(2) Quiet zone and rail crossing improvements(3) Grade separation of rail and road crossings(4) Road improvements to create quiet streets and reduce speed and noise in
appropriate places(5) Gates, fencing, and sound walls(6) Best practice building standards and improvements
B. Operational Changes in Local Industry and Businesses
(1) Operational modifications
C. Compliance with Existing Regulations, Policies, and Standards
(1) Improved enforcement of existing regulations
D. Best Management Practices and Tools
(1) Amend policy and ordinances
A. Physical Improvements that Reduce and Mitigate Noise Sources
(1) Industrial Equipment, Building, and Mechanical Upgrades
(a) Work with Port tenants and local industry within Barrio Logan to incorporate bestmanagement noise reduction features on existing and future improvements tobuildings and operations (e.g., add soundproofing materials or acoustical louvers onbuildings that contain noisy equipment, like compressors).
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(b) Incorporate, to the extent feasible and reasonable, noise shielding around noisyequipment (e.g., compressors, pumps, and vacuums) that operate during latenight/early morning hours.
(i) CP Kelco compressor building
Possible noise sources include the cooling towers located adjacent to DeweyStreet and the building that houses the compressor units for the fermenteroperations. Early in 2020, in response to coordination that occurred during thecourse of this Study, CP Kelco upgraded their equipment and building thathouses the compressor units by installing acoustical louvers, mufflers to their airvents, and new door mechanisms to close the compressor building and mitigatethe noise coming from the fermenter operations. CP Kelco is also looking toupgrade the facility in terms of ventilation and as a result of the Study, hasadded some additional features including acoustic baffling on the vent exhausts.
(c) Pursue electrification of the cranes and other industrial equipment that meets theoperational needs and regulatory requirements of the working waterfront andindustrial activities within Barrio Logan to eliminate noise from diesel motors.
(d) Ask MTS and BNSF to test and verify their train horns are within FRA specification of96 to 110 dB. The City of San Diego, or any other group or organization orcommunity representative, could request this testing to occur and could conduct itsown measurements to determine if there is a possible violation.
(e) Ask MTS and BNSF to test and verify their freight cars are not “defective” and arewithin FRA noise specifications (88 dB for cars in motion and 92 dB for cars duringcoupling/train assembly operations below 8 mph). Per FRA standards, any suchdefective equipment is to be immediately removed from service and repaired orreplaced. MTS has confirmed that their coupling of light rail vehicles generally occursat less than 1 mph and the generated noise is limited to several feet away. The Cityor community could commission independent testing to determine if there is apossible violation. The monitoring conducted with this study did not identify anymeasurements in excess of the FRA limits. However, the monitoring for this studywas not designed to determine compliance of the train horn or railcar operationswith the FRA standards. Such testing would need to follow specific protocols thatneed to be done independently.
(2) Quiet Zone and Rail Crossing Improvements
(a) Create a quiet zone through Barrio Logan
Creation of a quiet zone through Barrio Logan would eliminate the requiredsounding of 96 to 110 dB train horns as they approach each of the seven MTS andfive BNSF intersection crossings throughout the day and night, including thecurrently scheduled 53 MTS trolley trains through Barrio Logan between 10:00 p.m.and 7:00 a.m. on weekdays and an estimated six freight train trips between midnightand 4:00 a.m. There are excellent local and recent precedents for the establishmentof quiet zones in San Diego, including the Downtown Quiet Zone between ParkBoulevard and Laurel Street. Planning began in 2005; construction began in 2010;
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and operations began in 2012. A new quiet zone is being studied for the adjacent Middletown-Old Town Quiet Zone area between Palm Street and Taylor Street.
The process to create a quiet zone involves obtaining support from the City of San Diego, preparation of technical feasibility analyses and cost projections, and coordination with NCTD, MTS, BNSF, and CPUC. The process and procedures are outlined in the Guide to Establishing Quiet Zones (see Appendix 1).
These improvements could be evaluated and discussed in the Barrio Logan Community Plan or pursued as an independent solution. It could be initiated by requests from residents to their elected representatives, including the City Council district representative (Moreno). Funding for the required studies would need to be obtained. Potential sources include the City General Fund, grants, or donations. The current Middletown-Old Town Quiet Zone study was funded by SANDAG at the request of the City of San Diego and the County of San Diego. The study assessed project feasibility, including conceptual plans that were developed, and included the improvements necessary to meet FRA requirements and conceptual cost estimates.
(b) Replace and/or calibrate older existing crossing bells to the required 70-dBminimum. As noted in Chapter 2, Regulatory Framework, regarding FRA, interviewswith MTS noted that most of the older bells in the quiet zones established in SanDiego have been measured in the 80 to 90 dB range. As part of the requiredimprovements, many of the older bells were replaced with new replacement bellsthat have adjustable levels beginning at the minimum 70-dB level, thereby reducingthe noise levels at each crossing. Older bells that are louder than required could bereplaced as part of future Quiet Zone improvements, or independently, subject tothe same quiet zone process explained above in the section on FRA regulations.Essentially, the City of San Diego could request the CPUC to approve bellreplacement subject to demonstration that the crossings meet safety standards. Anycommunity member or representative could request the City to initiate this process.Funding for the required feasibility and cost projection studies and physicalimprovements would need to be established. This could come from many sources,including the City General Fund, loans, grants or donations. Presumably, the Citywould fund these improvements in Barrio Logan in the same manner as was donefor the two other Quiet Zones in San Diego.
(3) Grade Separation of Rail and Road Crossings
(a) Create grade separation at crossings. Like the creation of quiet zones, gradeseparation of rail and road crossings would eliminate the required blowing of trainhorns. It would have the additional benefit of eliminating the need for crossingcontrols and warning bells. Grade separation of rail and roads is a recommendedimprovement in the Barrio Logan Capital Improvement Plan, but it is not funded.Similarly, grade separation is recommended in recently adopted community plans(e.g., Middletown and Old Town). SANDAG’s current Regional Transportation Planidentifies grade separating the Trolley at 28th Street and 32nd Street as part of theBlue Line Rail Grade Separations project. The cost of such grade separations is in thetens to hundreds of millions of dollars per crossing, particularly for heavy freight
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which has more restrictive design constraints for changes in grade. The design constraints, including sea level rise, room for bridges and ramps, and impact on access to businesses and homes, also appear to be very challenging. This is a major policy and capital decision that needs to be coordinated with the Barrio Logan Community Plan and the City’s General Plan, as well as with SANDAG, MTS, BNSF, NCTD, Port tenants, and other local industries that use direct rail access.
(4) Road Improvements to Create Quiet Streets and Reduce Speed and Noise
(a) Implement traffic-calming measures. Traffic-calming measures may be implementedto reduce travel speeds, thereby also reducing associated vehicle noise and vibrationand improving pedestrian and bicycle safety. Traffic-calming improvements shouldbe consistent with the Barrio Logan Community Plan Mobility Element, includingCity-adopted truck routes and restrictions. Typical improvements include narrowertravel lanes, buffered or separated bicycle lanes, medians, street trees, separationbetween curb and sidewalks, and extension of curbs at street corners and pedestriancrossings. Together, these measures can improve bicyclist and pedestrian comfortand safety and provide strong visual cues and friction to vehicular traffic to reduceoverall vehicular speed. In general, there is a 1-dB reduction for every reduction of 5mph in vehicle speed.
(b) Improve maintenance to eliminate rough surfaces that create truck and vehicleimpact noises (e.g., pothole repair). This can reduce tire noise and banging of trailerdoors. Residents are encouraged to use the City of San Diego’s Get It Done!application (https://www.sandiego.gov/get-it-done) which makes reporting, requesting,and tracking such issues very easy and has helped the City address problems morequickly. More comprehensive and larger improvements are typically coordinatedthrough the Community Planning Group requests and prioritization of the CapitalImprovement Plan (CIP).
(c) Use noise reduction surfacing such as asphalt, rubberized asphalt, and porousconcrete on local roads. Asphalt is 3 to 4 dB quieter than concrete surfaces.Rubberized asphalt can reduce noise levels another 3 to 4 dB. Most areas in BarrioLogan are already asphalt paved except for Harbor Drive. Please note that thedesignated truck haul route (Harbor Drive, 28th Street, and 32nd Street) and othermajor thoroughfares may not be suitable for these treatments because of weightload requirements.
(d) Work with the Navy to increase the height of the 32nd Street pedestrian bridge toaccommodate special cargo trucks (“high, wide, and heavy”) with a height over13 feet, 6 inches on Harbor Drive and away from noise sensitive receptors withinBarrio Logan.
(e) Explore opportunities with the California Department of Transportation (Caltrans) toreconfigure the southbound I-5 on-ramp to help reduce traffic on Boston Avenue, ascontemplated in the District’s Harbor Drive Multimodal Corridor Study (January2020) as improvement #69.
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(f) Support the Navy’s Vesta Street Bridge project over Harbor Drive that wouldconnect the wet and dry side of the Navy Base and help reduce Navy traffic on localroads.
(5) Gates, Fencing, and Sound Walls
Sound walls typically reduce noise levels 5 to 8 dB when they break the line of sight between the source and the receiver. If the wall height is increased, additional noise reductions are possible depending on the vertical and horizontal separation between the source and the receiver. Sound walls are more effective when installed near the source.
(a) Upgrade open gates and/or fencing to solid gates/fencing to reduce noise (e.g., CPKelco gate); refer to the photographs below for examples of sites that may benefitfrom solid fencing to reduce noise.
(b) Evaluate and consider the installation of sound walls along railroad rights-of-ways;specifically, between 28th Street and the railyards where they would provide abarrier between the rail lines and residential properties. Refer to the photographsbelow for visual examples of sound walls installed to reduce potential noise effectsof trains on adjacent land uses.
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(6) Best Practice Building Standards and Improvements
The following are recommended best practices and standardconditions of approval for commercial and industrial projects.They should be considered as potential requirements (orconditions of approval) during approval processes at the City,Port, and FRA.
(a) Enclose outdoor equipment, machines, and activitieswithin a building to the maximum extent feasible.
(b) Eliminate windows in buildings that would face towardnoise-sensitive land uses adjacent to the facility. Ifwindows are required to be located on the side of thefacility facing noise-sensitive land uses, they should be thefixed type of windows with a Sound Transmission Class(STC) rating of at least 35. If the windows must beoperable, they should be closed during nighttimeactivities.
(c) Require exterior doors to be closed during nighttimeactivities.
(d) Install sound barriers along tracks to help protect theadjacent noise-sensitive receivers.
(e) All temporary and/or permanent mechanical equipment(compressors, pumps, generators, etc.) should be fullyenclosed within a structure, unless it’s operationally notfeasible.
(f) Any temporary and/or permanent outdoor mechanicalequipment (compressors, pumps, generators, etc.) shouldbe located on the far side of the facility away fromadjacent noise-sensitive receivers, unless it’s operationallynot feasible. If this is not possible, such equipment shouldbe located within noise enclosures to mitigate noise levelsduring operation.
(g) Improve insulation and noise reduction of windows, doors,and walls of older noise-impacted dwellings andcommercial businesses.
(h) Incorporate forced-air ventilation systems to allow windows and doors to be closed.
(i) Use double-paned or sound-rated windows with an STC rating or 30 or higher.
(j) Incorporate sound-insulating exterior walls and roofs.
(k) Use attic vents to minimize sound intrusion into structures.
(l) Study air changer (vacuum) systems, i.e., investigate alternative equipment,containment options.
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B. Operational Changes in Local Industry and Businesses
(1) Operational modifications
(a) Work with local industry operators to address specific operational adjustments suchas hours of operation or specific loud or disruptive equipment. For example, asnoted in Section 3.3, Industry Interviews and Documentation, and Table 10, Short-term Noise Measurements, industrial activities, including the use of forklifts, trucks,and equipment, were observed between 2:00 a.m. and 3:00 a.m. at severalbusinesses, including IMS Recycling at Main and 27th Street, New Leaf on NewtonAvenue, and TQM Foods on Newton Avenue. These operations are outside of postedbusiness hours for IMS (8:00 a.m. to 4:30 p.m.) and TQM Foods (6:00 a.m. to4:00 p.m.) and may be in violation of the conditions of their use permits. New Leafmanufactures biodiesel from used cooking oil continuously, 24 hours a day.
(b) Work with the Port and its tenants to electrify cranes and other industrialequipment, provided it can meet operational needs. BAE ship builders haveconverted to electrically powered cranes, which are very quiet and generallyundetectable in comparison to ambient noise. Although only 9 of NASSCO’sapproximately 100 cranes are diesel powered, electrification of NASSCO’s remainingdiesel powered cranes would reduce this noise source that is otherwise impossibleto screen and mitigate due to their elevation and the uninterrupted noise. This wouldhelp avoid potential noises during NASSCO’s shift 3 (from midnight to 6:30 a.m.),which may occur with increased crane operations if ship repair activities increase.Electrification would also decrease air pollution.
C. Compliance with Existing Regulations, Policies, and Standards
(1) Improved compliance with existing regulations
(a) Support the San Diego Police Department’s aggressive enforcement of thedesignated truck routes and other truck traffic prohibitions, and work to ensure thatthese efforts continue.
(b) Reduce vehicle speeds on local roadways. As noted above, every reduction of 5 mphin vehicle speed results in a 1 to 2 dB reduction.
(c) Report Noise Ordinance violations such as early commercial or industrial siteoperations (nighttime noise complaints). (See Section 2, Regulatory Framework,Local Policies, Standards and Regulations, for more information, including phonenumbers, web addresses, and contacts.)
(d) Work with the City to provide additional staff from the City of San Diego CodeEnforcement division of the Development Services Department with specificresponsibility for noise enforcement in the Barrio Logan community.
(e) Work with the City of San Diego to add real-time recordings and locational data andreports of excessive noise violations to the Get It Done application(https://www.sandiego.gov/get-it-done).
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D. Best Management Practices and Tools
(1) Amend policy and ordinances
Amend zoning, Community Plan, and/or the City Noise Ordinance to better address mixed-use zones and adjacency and compatibility issues.
(a) Possible revisions and considerations include:
(i) Clarify and establish noise limits for mixed-use zones. The standards may varybased on the nature of the mixed-use zone but should recognize the prevalenceof industrial uses, rail activity, and early morning traffic patterns.
(ii) Require conditional use permits (CUP) to control the unique operational aspectsof potentially disruptive commercial and industrial uses in mixed use zones. TheCUP is used effectively in Downtown San Diego to create conditions of approvalsuch as hours of operation, enclosure of equipment, and other performancestandards. Ongoing compliance with the standards is required for the businessesto maintain operations. These standards are often more effective and moreeasily enforced than the Noise Ordinance. The approval process can provide ameaningful mechanism for negotiation and compromise between the businessand the neighboring uses.
(iii) Create standard conditions of approval for common types of uses and problems.These standards can be used as conditions for CUPs, or NeighborhoodDevelopment Permits, and even as minimum standards for as-of-right uses. Inthis manner, the approval process can be streamlined to help maintain andfacilitate business development while protecting the sensitive receptors anduses in the mixed-use zones.
(b) Consider implementing a transition zone of commercial uses between heavyindustrial uses west of Harbor Drive and residential uses in the Barrio Logancommunity. It is noted that such a policy was included within Chapter 2 – Land UseElement of the 2013 Barrio Logan Community Plan (rescinded by referendum):
“In 2008, the San Diego Unified Port District adopted a Transition Zone Policy (BPCPolicy 725). The purpose of the Policy is to protect the maritime and maritime-related jobs provided by the Port of San Diego and to protect existing operationsand business governed by the Barrio Logan Community Plan or the Port Master Plan.It is also the intent of the Policy to minimize conflicts with incompatible uses and toprovide a balance between needs of the Port District and the goals and objectives ofthe adjacent communities. The Transition Zone is intended to include uses that donot pose health risks to sensitive receptor land uses that are adjacent or proximateto the Port District’s industries. The Barrio Logan Community Plan implements theintent of the San Diego Unified Port District Transitional Zone (See Figures 2-6).Residential uses are prohibited adjacent to Harbor Drive or Main Street south of 28th
Street. The Transition Area is intended provide a buffer comprised of buildingsbetween the Heavy Industrial uses west of Harbor Drive and the community of BarrioLogan. The area will emphasize the use of high quality materials and design.” (LU-14)
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(c) Consider establishing a fund and accompanying program to improve local buildingsto reduce noise emissions beyond the property or to fund improvements to localhomes and businesses to better insulate themselves from external noise levels thatcannot be readily reduced at the source, such as vehicular traffic noise. For example,in 1998 the Port began a sound insulation program, known as the Quieter HomeProgram, for the San Diego International Airport. It is a residential sound insulationprogram that implements the Federal Aviation Administration’s (FAA) goal ofreducing interior noise levels by at least five decibels. To achieve this goal, programparticipants may retrofit exterior doors and windows, install a ventilation system,and conduct other miscellaneous treatments. To date, 3,453 dwelling units in thecommunities of Loma Portal/Ocean Beach, Bankers Hill/Middletown, and GoldenHill/South Park completed improvements through the sound insulation program.
6.3 AFTERWARD In November 2019, during the monitoring phase of the Noise Study, the Port received several complaints from two Barrio Logan residents and one Coronado resident. The complaints have described the noise as a very high-pitch, pulsating, whining sound that is audible around the clock. Although the noise monitoring conducted in October and November 2019 indicated that the night-time noise levels were generally within acceptable noise limits established by the City, this noise disturbance is an ongoing issue for some residents and appears to be a unique outlier. The Port’s noise consultant has conducted multiple site visits as the result of the complaint but has been unable to pinpoint the source. As the Barrio Logan Nighttime Noise Study becomes finalized in April 2020, the investigation is ongoing. Port staff continues to work with its noise consultant and tenants, as well as City staff and local area residents, to determine the source so that options to mitigate the disturbance can be identified and implemented.
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Acronyms and Abbreviations ADT ................... Average Daily Traffic
BLPD ................ Barrio Logan Planned District
BNSF ................ Burlington Northern Santa Fe
Caltrans ........... California Department of Transportation
CEQA ............... California Environmental Quality Act
CFR ................... Code of Federal Regulations
CIP ..................... Capital Improvement Plan
CNEL ................ Community Noise Equivalent Level
CPUC ................ California Public Utilities Commission
CUP ................... Conditional Use Permit
dB ...................... Decibel
du/acre ........... Dwelling unit per acre
EPA ................... Environmental Protection Agency
FAA ................... Federal Aviation Administration
FHWA .............. Federal Highway Administration
FRA ................... Federal Railroad Administration
HII ....................... Huntington Ingalls Industries
HVAC ............... Heating, ventilation, and air conditioning
I-5 ....................... Interstate 5
km/hr ............... Kilometers per hour
Leq ...................... Equivalent Sound Level
Lmax .................... Maximum Sound Level
Lmin .................... Minimum Sound Level
Lxx ...................... Percentile-Exceeded Sound Level
MIIF ................... Maritime Industrial Impact Fund
mph .................. Miles per hour
MTS .................. Metropolitan Transit System
NAC .................. Noise Abatement Criteria
NCTD ............... North County Transit District
NEX .................. Navy Exchange
OSHA ............... Occupational Safety and Health Administration
SANDAG ........ San Diego Association of Governments
SDIV ................. San Diego and Imperial Valley Railroad
SPL ................... Sound Pressure Level
SR-75 ............... State Route 75 (Coronado Bridge)
STC ................... Sound Transmission Class
Study ............... Barrio Logan Nighttime Noise Study
TAMT ............... 10th Avenue Marine Terminal
The Port ......... The San Diego Unified Port District
Tidelands ....... Land within the mean high tide line
UCSD ............... University of California at San Diego
VOC .................. volatile organic compound
APPENDICES
Appendix 1. Guide to Establishing Quiet Zones
(Appendix C to 49 CFR Chapter II [10/1/18 Edition] Part 222)
APPENDICES
385
Federal Railroad Administration, DOT Pt. 222, App. C
the violation rate that was used to deter-
mine the effectiveness rate that was ap-
proved by FRA, the public authority can
cease violation rate monitoring.
7. In the event that the violation rate over
either of the next two calendar quarters are
greater than the violation rate used to deter-
mine the effectiveness rate that was ap-
proved by FRA, the public authority may
continue the quiet zone for a third calendar
quarter. However, if the third calendar quar-
ter violation rate is also greater than the
rate used to determine the effectiveness rate
that was approved by FRA, a new effective-
ness rate must be calculated and the Quiet
Zone Risk Index re-calculated using the new
effectiveness rate. If the new Quiet Zone
Risk Index exceeds the Risk Index With
Horns and the Nationwide Significant Risk
Threshold, the procedures for dealing with
unacceptable effectiveness after establish-
ment of a quiet zone should be followed.
APPENDIX C TO PART 222—GUIDE TO
ESTABLISHING QUIET ZONES
Introduction
This Guide to Establishing Quiet Zones
(Guide) is divided into five sections in order
to address the variety of methods and condi-
tions that affect the establishment of quiet
zones under this rule.
Section I of the Guide provides an overview
of the different ways in which a quiet zone
may be established under this rule. This in-
cludes a brief discussion on the safety
thresholds that must be attained in order for
train horns to be silenced and the relative
merits of each. It also includes the two gen-
eral methods that may be used to reduce risk
in the proposed quiet zone, and the different
impacts that the methods have on the quiet
zone implementation process. This section
also discusses Partial (e.g. night time only
quiet zones) and Intermediate Quiet Zones.
An Intermediate Quiet Zone is one where
horn restrictions were in place after October
9, 1996, but as of December 18, 2003.
Section II of the Guide provides informa-
tion on establishing New Quiet Zones. A New
Quiet Zone is one at which train horns are
currently being sounded at crossings. The
Public Authority Designation and Public Au-
thority Application to FRA methods will be
discussed in depth.
Section III of the Guide provides informa-
tion on establishing Pre-Rule Quiet Zones. A
Pre-Rule Quiet Zone is one where train horns
were not routinely sounded as of October 9,
1996 and December 18, 2003. The differences
between New and Pre-Rule Quiet Zones will
be explained. Public Authority Designation
and Public Authority Application to FRA
methods also apply to Pre-Rule Quiet Zones.
Section IV of the Guide deals with the re-
quired notifications that must be provided
by public authorities when establishing both
New and continuing Pre-Rule or Inter-
mediate Quiet Zones.
Section V of the Guide provides examples
of quiet zone implementation.
SECTION I—OVERVIEW
In order for a quiet zone to be qualified
under this rule, it must be shown that the
lack of the train horn does not present a sig-
nificant risk with respect to loss of life or se-
rious personal injury, or that the significant
risk has been compensated for by other
means. The rule provides four basic ways in
which a quiet zone may be established. Cre-
ation of both New Quiet Zones and Pre-Rule
Quiet Zones are based on the same general
guidelines; however, there are a number of
differences that will be noted in the discus-
sion on Pre-Rule Quiet Zones.
A. Qualifying Conditions
(1) One of the following four conditions or
scenarios must be met in order to show that
the lack of the train horn does not present a
significant risk, or that the significant risk
has been compensated for by other means:
a. One or more SSMs as identified in ap-
pendix A are installed at each public cross-
ing in the quiet zone; or
b. The Quiet Zone Risk Index is equal to,
or less than, the Nationwide Significant Risk
Threshold without implementation of addi-
tional safety measures at any crossings in
the quiet zone; or
c. Additional safety measures are imple-
mented at selected crossings resulting in the
Quiet Zone Risk Index being reduced to a
level equal to, or less than, the Nationwide
Significant Risk Threshold; or
d. Additional safety measures are taken at
selected crossings resulting in the Quiet
Zone Risk Index being reduced to at least
the level of the Risk Index With Horns (that
is, the risk that would exist if train horns
were sounded at every public crossing in the
quiet zone).
(2) It is important to consider the implica-
tions of each approach before deciding which
one to use. If a quiet zone is qualified based
on reference to the Nationwide Significant
Risk Threshold (i.e. the Quiet Zone Risk
Index is equal to, or less than, the Nation-
wide Significant Risk Threshold—see the
second and third scenarios above), then an
annual review will be done by FRA to deter-
mine if the Quiet Zone Risk Index remains
equal to, or less than, the Nationwide Sig-
nificant Risk Threshold. Since the Nation-
wide Significant Risk Threshold and the
Quiet Zone Risk Index may change from year
to year, there is no guarantee that the quiet
zone will remain qualified. The cir-
cumstances that cause the disqualification
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may not be subject to the control of the pub-
lic authority. For example, an overall na-
tional improvement in safety at gated cross-
ings may cause the Nationwide Significant
Risk Threshold to fall. This may cause the
Quiet Zone Risk Index to become greater
than the Nationwide Significant Risk
Threshold. If the quiet zone is no longer
qualified, then the public authority will have
to take additional measures, and may incur
additional costs that might not have been
budgeted, to once again lower the Quiet Zone
Risk Index to at least the Nationwide Sig-
nificant Risk Threshold in order to retain
the quiet zone. Therefore, while the initial
cost to implement a quiet zone under the
second or third scenario may be lower than
the other options, these scenarios also carry
a degree of uncertainty about the quiet
zone’s continued existence. (3) The use of the first or fourth scenarios
reduces the risk level to at least the level
that would exist if train horns were sounding
in the quiet zone. These methods may have
higher initial costs because more safety
measures may be necessary in order to
achieve the needed risk reduction. Despite
the possibility of greater initial costs, there
are several benefits to these methods. The
installation of SSMs at every crossing will
provide the greatest safety benefit of any of
the methods that may be used to initiate a
quiet zone. With both of these methods (first
and fourth scenarios), the public authority
will never need to be concerned about the
Nationwide Significant Risk Threshold, an-
nual reviews of the Quiet Zone Risk Index, or
failing to be qualified because the Quiet
Zone Risk Index is higher than the Nation-
wide Significant Risk Threshold. Public au-
thorities are strongly encouraged to care-
fully consider both the pros and cons of all of
the methods and to choose the method that
will best meet the needs of its citizens by
providing a safer and quieter community. (4) For the purposes of this Guide, the term
‘‘Risk Index with Horns’’ is used to represent
the level of risk that would exist if train
horns were sounded at every public crossing
in the proposed quiet zone. If a public au-
thority decides that it would like to fully
compensate for the lack of a train horn and
not install SSMs at each public crossing in
the quiet zone, it must reduce the Quiet
Zone Risk Index to a level that is equal to,
or less than, the Risk Index with Horns. The
Risk Index with Horns is similar to the Na-
tionwide Significant Risk Threshold in that
both are targets that must be reached in
order to establish a quiet zone under the
rule. Quiet zones that are established by re-
ducing the Quiet Zone Risk Index to at least
the level of the Nationwide Significant Risk
Threshold will be reviewed annually by FRA
to determine if they still qualify under the
rule to retain the quiet zone. Quiet zones
that are established by reducing the Quiet
Zone Risk Index to at least the level of the
Risk Index with Horns will not be subject to
annual reviews. (5) The use of FRA’s web-based Quiet Zone
Calculator is recommended to aid in the de-
cision making process (http://www.fra.dot.gov/ us/content/1337). The Quiet Zone Calculator
will allow the public authority to consider a
variety of options in determining which
SSMs make the most sense. It will also per-
form the necessary calculations used to de-
termine the existing risk level and whether
enough risk has been mitigated in order to
create a quiet zone under this rule.
B. Risk Reduction Methods
FRA has established two general methods
to reduce risk in order to have a quiet zone
qualify under this rule. The method chosen
impacts the manner in which the quiet zone
is implemented. 1. Public Authority Designation (SSMs)—The
Public Authority Designation method
(§ 222.39(a)) involves the use of SSMs (see ap-
pendix A) at some or all crossings within the
quiet zone. The use of only SSMs to reduce
risk will allow a public authority to des-
ignate a quiet zone without approval from
FRA. If the public authority installs SSMs
at every crossing within the quiet zone, it
need not demonstrate that they will reduce
the risk sufficiently in order to qualify under
the rule since FRA has already assessed the
ability of the SSMs to reduce risk. In other
words, the Quiet Zone Calculator does not
need to be used. However, if only SSMs are
installed within the quiet zone, but not at
every crossing, the public authority must
calculate that sufficient risk reduction will
be accomplished by the SSMs. Once the im-
provements are made, the public authority
must make the required notifications (which
includes a copy of the report generated by
the Quiet Zone Calculator showing that the
risk in the quiet zone has been sufficiently
reduced), and the quiet zone may be imple-
mented. FRA does not need to approve the
plan as it has already assessed the ability of
the SSMs to reduce risk.2. Public Authority Application to FRA
(ASMs)—The Public Authority Application
to FRA method (§ 222.39(b)) involves the use
ASMs (see appendix B). ASMs include modi-
fied SSMs that do not fully comply with the
provisions found in appendix A (e.g., shorter
than required traffic channelization devices),
non-engineering ASMs (e.g., programmed
law enforcement), and engineering ASMs
(i.e., engineering improvements other than
modified SSMs). If the use of ASMs (or a
combination of ASMs and SSMs) is elected
to reduce risk, then the public authority
must provide a Notice of Intent and then
apply to FRA for approval of the quiet zone.
The application must contain sufficient data
and analysis to confirm that the proposed
ASMs do indeed provide the necessary risk
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reduction. FRA will review the application
and will issue a formal approval if it deter-
mines that risk is reduced to a level that is
necessary in order to comply with the rule.
Once FRA approval has been received and
the safety measures fully implemented, the
public authority would then provide a Notice
of Quiet Zone Establishment and the quiet
zone may be implemented. The use of non-
engineering ASMs will require continued
monitoring and analysis throughout the ex-
istence of the quiet zone to ensure that risk
continues to be reduced. 3. Calculating Risk Reduction—The fol-
lowing should be noted when calculating risk
reductions in association with the establish-
ment of a quiet zone. This information per-
tains to both New Quiet Zones and Pre-Rule
Quiet Zones and to the Public Authority
Designation and Public Authority Applica-
tion to FRA methods. Crossing closures: If any public crossing
within the quiet zone is proposed to be
closed, include that crossing when calcu-
lating the Risk Index with Horns. The effec-
tiveness of a closure is 1.0. However, be sure
to increase the traffic counts at other cross-
ings within the quiet zone and recalculate
the risk indices for those crossings that will
handle the traffic diverted from the closed
crossing. It should be noted that crossing
closures that are already in existence are not
considered in the risk calculations.
Example: A proposed New Quiet Zone con-
tains four crossings: A, B, C and D streets. A,
B and D streets are equipped with flashing
lights and gates. C Street is a passive
crossbuck crossing with a traffic count of 400
vehicles per day. It is decided that C Street
will be closed as part of the project. Compute
the risk indices for all four streets. The cal-
culation for C Street will utilize flashing
lights and gates as the warning device. Cal-
culate the Crossing Corridor Risk Index by
averaging the risk indices for all four of the
crossings. This value will also be the Risk
Index with Horns since train horns are cur-
rently being sounded. To calculate the Quiet
Zone Risk Index, first re-calculate the risk
indices for B and D streets by increasing the
traffic count for each crossing by 200. (As-
sume for this example that the public au-
thority decided that the traffic from C
Street would be equally divided between B
and D streets.) Increase the risk indices for
A, B and D streets by 66.8% and divide the
sum of the three remaining crossings by
four. This is the initial Quiet Zone Risk
Index and accounts for the risk reduction
caused by closing C Street.
Grade Separation: Grade separated cross-
ings that were in existence before the cre-
ation of a quiet zone are not included in any
of the calculations. However, any public
crossings within the quiet zone that are pro-
posed to be treated by grade separation
should be treated in the same manner as
crossing closures. Highway traffic that may
be diverted from other crossings within the
quiet zone to the new grade separated cross-
ing should be considered when computing the
Quiet Zone Risk Index.
Example: A proposed New Quiet Zone con-
tains four crossings: A, B, C and D streets.
All streets are equipped with flashing lights
and gates. C Street is a busy crossing with a
traffic count of 25,000 vehicles per day. It is
decided that C Street will be grade separated
as part of the project and the existing at-
grade crossing closed. Compute the risk indi-
ces for all four streets. Calculate the Cross-
ing Corridor Risk Index, which will also be
the Risk Index with Horns, by averaging the
risk indices for all four of the crossings. To
calculate the Quiet Zone Risk Index, first re-
calculate the risk indices for B and D streets
by decreasing the traffic count for each
crossing by 1,200. (The public authority de-
cided that 2,400 motorists will decide to use
the grade separation at C Street in order to
avoid possible delays caused by passing
trains.) Increase the risk indices for A, B and
D streets by 66.8% and divide the sum of the
three remaining crossings by four. This is
the initial Quiet Zone Risk Index and ac-
counts for the risk reduction caused by the
grade separation at C Street.
Pre-Existing SSMs: Risk reduction credit
may be taken by a public authority for a
SSM that was previously implemented and is
currently in place in the quiet zone. If an ex-
isting improvement meets the criteria for a
SSM as provided in appendix A, the improve-
ment is deemed a Pre-Existing SSM. Risk re-
duction credit is obtained by inflating the
Risk Index With Horns to show what the risk
would have been at the crossing if the pre-ex-
isting SSM had not been implemented.
Crossing closures and grade separations that
occurred prior to the implementation of the
quiet zone are not Pre-Existing SSMs and do
not receive any risk reduction credit.
Example 1. A proposed New Quiet Zone has
one crossing that is equipped with flashing
lights and gates and has medians 100 feet in
length on both sides of the crossing. The me-
dians conform to the requirements in appen-
dix A and qualify as a Pre-Existing SSM. The
risk index as calculated for the crossing is
10,000. To calculate the Risk Index With
Horns for this crossing, you divide the risk
index by difference between one and the ef-
fectiveness rate of the pre-existing SSM
(10,000 ÷ (1–0.75) = 40,000). This value (40,000)
would then be averaged in with the risk indi-
ces of the other crossings to determine the
proposed quiet zone’s Risk Index With Horns.
To calculate the Quiet Zone Risk Index, the
original risk index is increased by 66.8% to
account for the additional risk attributed to
the absence of the train horn (10,000 × 1.668 =
16,680). This value (16,680) is then averaged
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into the risk indices of the other crossings
that have also been increased by 66.8%. The
resulting average is the Quiet Zone Risk
Index. Example 2. A Pre-Rule Quiet Zone con-
sisting of four crossings has one crossing
that is equipped with flashing lights and
gates and has medians 100 feet in length on
both sides of the crossing. The medians con-
form to the requirements in appendix A and
qualify as a Pre-Existing SSM. The risk
index as calculated for the crossing is 20,000.
To calculate the Risk Index With Horns for
this crossing, first reduce the risk index by
40 percent to reflect the risk reduction that
would be achieved if train horns were rou-
tinely sounded (20,000 × 0.6 = 12,000). Next, di-
vide the resulting risk index by difference
between one and the effectiveness rate of the
pre-existing SSM (12,000 ÷ (1 ¥ 0.75) = 48,000).
This value (48,000) would then be averaged
with the adjusted risk indices of the other
crossings to determine the pre-rule quiet
zone’s Risk Index With Horns. To calculate
the Quiet Zone Risk Index, the original risk
index (20,000) is then averaged into the risk
original indices of the other crossings. The
resulting average is the Quiet Zone Risk
Index.
Pre-Existing Modified SSMs: Risk reduction
credit may be taken by a public authority
for a modified SSM that was previously im-
plemented and is currently in place in the
quiet zone. Modified SSMs are Alternative
Safety Measures which must be approved by
FRA. If an existing improvement is approved
by FRA as a modified SSM as provided in ap-
pendix B, the improvement is deemed a Pre-
Existing Modified SSM. Risk reduction cred-
it is obtained by inflating the Risk Index
With Horns to show what the risk would
have been at the crossing if the pre-existing
SSM had not been implemented. The effec-
tiveness rate of the modified SSM will be de-
termined by FRA. The public authority may
provide information to FRA to be used in de-
termining the effectiveness rate of the modi-
fied SSM. Once an effectiveness rate has
been determined, follow the procedure pre-
viously discussed for Pre-Existing SSMs to
determine the risk values that will be used
in the quiet zone calculations. Wayside Horns: Crossings with wayside
horn installations will be treated as a one for
one substitute for the train horn and are not
to be included when calculating the Crossing
Corridor Risk Index, the Risk Index with
Horns or the Quiet Zone Risk Index.
Example: A proposed New Quiet Zone con-
tains four crossings: A, B, C and D streets.
All streets are equipped with flashing lights
and gates. It is decided that C Street will
have a wayside horn installed. Compute the
risk indices for A, B and D streets. Since C
Street is being treated with a wayside horn,
it is not included in the calculation of risk.
Calculate the Crossing Corridor Risk Index
by averaging the risk indices for A, B and D
streets. This value is also the Risk Index
with Horns. Increase the risk indices for A, B
and D streets by 66.8% and average the re-
sults. This is the initial Quiet Zone Risk
Index for the proposed quiet zone.
C. Partial Quiet Zones
A Partial Quiet Zone is a quiet zone in
which locomotive horns are not routinely
sounded at public crossings for a specified
period of time each day. For example, a quiet
zone during only the nighttime hours would
be a partial quiet zone. Partial quiet zones
may be either New or Pre-Rule and follow
the same rules as 24 hour quiet zones. New
Partial Quiet Zones must be in effect during
the hours of 10 p.m. to 7 a.m. All New Partial
Quiet Zones must comply with all of the re-
quirements for New Quiet Zones. For exam-
ple, all public grade crossings that are open
during the time that horns are silenced must
be equipped with flashing lights and gates
that are equipped with constant warning
time (where practical) and power out indica-
tors. Risk is calculated in exactly the same
manner as for New Quiet Zones. The Quiet
Zone Risk Index is calculated for the entire
24-hour period, even though the train horn
will only be silenced during the hours of 10
p.m. to 7 a.m.
A Pre-Rule Partial Quiet Zone is a partial
quiet zone at which train horns were not
sounding as of October 9, 1996 and on Decem-
ber 18, 2003. All of the regulations that per-
tain to Pre-Rule Quiet Zones also pertain to
Pre-Rule Partial Quiet Zones. The Quiet
Zone Risk Index is calculated for the entire
24-hour period for Pre-Rule Partial Quiet
Zones, even though train horns are only si-
lenced during the nighttime hours. Pre-Rule
Partial Quiet Zones may qualify for auto-
matic approval in the same manner as Pre-
Rule Quiet Zones with one exception. If the
Quiet Zone Risk Index is less than twice the
National Significant Risk Threshold, and
there have been no relevant collisions during
the time period when train horns are si-
lenced, then the Pre-Rule Partial Quiet Zone
is automatically qualified. In other words, a
relevant collision that occurred during the
period of time that train horns were sounded
will not disqualify a Pre-Rule Partial Quiet
Zone that has a Quiet Zone Risk Index that
is less than twice the National Significant
Risk Index. Pre-Rule Partial Quiet Zones
must provide the notification as required in
§ 222.43 in order to keep train horns silenced.
A Pre-Rule Partial Quiet Zone may be con-
verted to a 24 hour New Quiet Zone by com-
plying with all of the New Quiet Zone regula-
tions.
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D. Intermediate Quiet Zones
An Intermediate Quiet Zone is one where
horn restrictions were in place after October
9, 1996, but as of December 18, 2003 (the publi-
cation date of the Interim Final Rule). Inter-
mediate Quiet Zones and Intermediate Par-
tial Quiet Zones will be able to keep train
horns silenced until June 24, 2006, provided
notification is made per § 222.43. This will en-
able public authority to have additional
time to make the improvement necessary to
come into compliance with the rule. Inter-
mediate Quiet Zones must conform to all the
requirements for New Quiet Zones by June
24, 2006. Other than having the horn silenced
for an additional year, Intermediate Quiet
Zones are treated exactly like New Quiet
Zones.
SECTION II—NEW QUIET ZONES
FRA has established several approaches
that may be taken in order to establish a
New Quiet Zone under this rule. Please see
the preceding discussions on ‘‘Qualifying
Conditions’’ and ‘‘Risk Reduction Methods’’
to assist in the decision-making process on
which approach to take. This following dis-
cussion provides the steps necessary to es-
tablish New Quiet Zones and includes both
the Public Authority Designation and Public
Authority Application to FRA methods. It
must be remembered that in a New Quiet
Zone all public crossings must be equipped
with flashing lights and gates. The require-
ments are the same regardless of whether a
24-hour or partial quiet zone is being created.
A. Requirements for Both Public Authority Designation and Public Authority Application
The following steps are necessary when es-
tablishing a New Quiet Zone. This informa-
tion pertains to both the Public Authority
Designation and Public Authority Applica-
tion to FRA methods. 1. The public authority must provide a
written Notice of Intent (§ 222.43(a)(1) and
§ 222.43(b)) to the railroads that operate over
the proposed quiet zone, the State agency re-
sponsible for highway and road safety and
the State agency responsible for grade cross-
ing safety. The purpose of this Notice of In-
tent is to provide an opportunity for the rail-
roads and the State agencies to provide com-
ments and recommendations to the public
authority as it is planning the quiet zone.
They will have 60 days to provide these com-
ments to the public authority. The quiet
zone cannot be created unless the Notice of
Intent has been provided. FRA encourages
public authorities to provide the required
Notice of Intent early in the quiet zone de-
velopment process. The railroads and State
agencies can provide an expertise that very
well may not be present within the public
authority. FRA believes that it will be very
useful to include these organizations in the
planning process. For example, including
railroads and State agencies in the inspec-
tions of the crossing will help ensure accu-
rate Inventory information for the crossings.
The railroad can provide information on
whether the flashing lights and gates are
equipped with constant warning time and
power out indicators. Pedestrian crossings
and private crossings with public access, in-
dustrial or commercial use that are within
the quiet zone must have a diagnostic team
review and be treated according to the
team’s recommendations. Railroads and the
State agency responsible for grade crossing
safety must be invited to the diagnostic
team review. Note: Please see Section IV for
details on the requirements of a Notice of In-
tent.
2. Determine all public, private and pedes-
trian at-grade crossings that will be included
within the quiet zone. Also, determine any
existing grade-separated crossings that fall
within the quiet zone. Each crossing must be
identified by the U.S. DOT Crossing Inven-
tory number and street or highway name. If
a crossing does not have a U.S. DOT Crossing
Inventory number, then contact FRA’s Of-
fice of Safety (202–493–6299) for assistance.
3. Ensure that the quiet zone will be at
least one-half mile in length. (§ 222.35(a)(1)) If
more than one New Quiet Zone or New Par-
tial Quiet Zone will be created within a sin-
gle political jurisdiction, ensure that each
New Quiet Zone or New Partial Quiet Zone
will be separated by at least one public high-
way-rail grade crossing. (§ 222.35(a)(1)(iii))
4. A complete and accurate Grade Crossing
Inventory Form must be on file with FRA
for all crossings (public, private and pedes-
trian) within the quiet zone. An inspection of
each crossing in the proposed quiet zone
should be performed and the Grade Crossing
Inventory Forms updated, as necessary, to
reflect the current conditions at each cross-
ing.
5. Every public crossing within the quiet
zone must be equipped with active warning
devices comprising both flashing lights and
gates. The warning devices must be equipped
with power out indicators. Constant warning
time circuitry is also required unless exist-
ing conditions would prevent the proper op-
eration of the constant warning time cir-
cuitry. FRA recommends that these auto-
matic warning devices also be equipped with
at least one bell to provide an audible warn-
ing to pedestrians. If the warning devices are
already equipped with a bell (or bells), the
bells may not be removed or deactivated.
The plans for the quiet zone may be made as-
suming that flashing lights and gates are at
all public crossings; however the quiet zone
may not be implemented until all public
crossings are actually equipped with the
flashing lights and gates. (§§ 222.35(b)(1) and
222.35(b)(2))
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6. Private crossings must have cross-bucks
and ‘‘STOP’’ signs on both approaches to the
crossing. Private crossings with public ac-
cess, industrial or commercial use must have
a diagnostic team review and be treated ac-
cording to the team’s recommendations. The
public authority must invite the State agen-
cy responsible for grade crossing safety and
all affected railroads to participate in the di-
agnostic review. (§§ 222.25(b) and (c)) 7. Each highway approach to every public
and private crossing must have an advance
warning sign (in accordance with the
MUTCD) that advises motorists that train
horns are not sounded at the crossing, unless
the public or private crossing is equipped
with a wayside horn. (§ 222.35(c)) 8. Each pedestrian crossing must be re-
viewed by a diagnostic team and equipped or
treated in accordance with the recommenda-
tion of the diagnostic team. The public au-
thority must invite the State agency respon-
sible for grade crossing safety and all af-
fected railroads to participate in the diag-
nostic review. At a minimum, each approach
to every pedestrian crossing must be
equipped with a sign that conforms to the
MUTCD and advises pedestrians that train
horns are not sounded at the crossing.
(§ 222.27)
B. New Quiet Zones—Public AuthorityDesignation
Once again it should be remembered that
all public crossings must be equipped with
automatic warning devices consisting of
flashing lights and gates in accordance with
§ 222.35(b). In addition, one of the following
conditions must be met in order for a public
authority to designate a new quiet zone
without FRA approval:a. One or more SSMs as identified in ap-
pendix A are installed at each public crossing
in the quiet zone (§ 222.39(a)(1)); or b. The Quiet Zone Risk Index is equal to,
or less than, the Nationwide Significant Risk
Threshold without SSMs installed at any
crossings in the quiet zone (§ 222.39(a)(2)(i));
or c. SSMs are installed at selected crossings,
resulting in the Quiet Zone Risk Index being
reduced to a level equal to, or less than, the
Nationwide Significant Risk Threshold
(§ 222.39(a)(2)(ii)); ord. SSMs are installed at selected crossings,
resulting in the Quiet Zone Risk Index being
reduced to a level of risk that would exist if
the horn were sounded at every crossing in
the quiet zone (i.e., the Risk Index with
Horns) (§ 222.39(a)(3)). Steps necessary to establish a New Quiet
Zone using the Public Authority Application
to FRA method: 1. If one or more SSMs as identified in ap-
pendix A are installed at each public cross-
ing in the quiet zone, the requirements for a
public authority designation quiet zone will
have been met. It is not necessary for the
same SSM to be used at each crossing. How-
ever, before any improvements are imple-
mented, the public authority must provide a
Notice of Intent, which will trigger a 60-day
comment period. During the 60-day comment
period, railroads operating within the pro-
posed quiet zone and State agencies respon-
sible for grade crossing, highway and road
safety may submit comments on the pro-
posed quiet zone improvements to the public
authority. Once the necessary improvements
have been installed, Notice of Quiet Zone Es-
tablishment shall be provided and the quiet
zone implemented in accordance with the
rule. If SSMs are not installed at each public
crossing, proceed on to Step 2 and use the
risk reduction method. 2. To begin, calculate the risk index for
each public crossing within the quiet zone
(See appendix D. FRA’s web-based Quiet
Zone Calculator may be used to do this cal-
culation). If flashing lights and gates have to
be installed at any public crossings, cal-
culate the risk indices for such crossings as
if lights and gates were installed. (NOTE:
Flashing lights and gates must be installed
prior to initiation of the quiet zone.) If the
Inventory record does not reflect the actual
conditions at the crossing, be sure to use the
conditions that currently exist when calcu-
lating the risk index. Note: Private crossings
and pedestrian crossings are not included
when computing the risk for the proposed
quiet zone. 3. The Crossing Corridor Risk Index is then
calculated by averaging the risk index for
each public crossing within the proposed
quiet zone. Since train horns are routinely
being sounded for crossings in the proposed
quiet zone, this value is also the Risk Index
with Horns. 4. In order to calculate the initial Quiet
Zone Risk Index, first adjust the risk index
at each public crossing to account for the in-
creased risk due to the absence of the train
horn. The absence of the horn is reflected by
an increased risk index of 66.8% at gated
crossings. The initial Quiet Zone Risk Index
is then calculated by averaging the increased
risk index for each public crossing within the
proposed quiet zone. At this point the Quiet
Zone Risk Index will equal the Risk Index
with Horns multiplied by 1.668. 5. Compare the Quiet Zone Risk Index to
the Nationwide Significant Risk Threshold.
If the Quiet Zone Risk Index is equal to, or
less than, the Nationwide Significant Risk
Threshold, then the public authority may de-
cide to designate a quiet zone and provide
the Notice of Intent, followed by the Notice
of Quiet Zone Establishment. With this ap-
proach, FRA will annually recalculate the
Nationwide Significant Risk Threshold and
the Quiet Zone Risk Index. If the Quiet Zone
Risk Index for the quiet zone rises above the
Nationwide Significant Risk Threshold, FRA
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will notify the Public Authority so that ap-
propriate measures can be taken. (See
§ 222.51(a)). 6. If the Quiet Zone Risk Index is greater
than the Nationwide Significant Risk
Threshold, then select an appropriate SSM
for a crossing. Reduce the inflated risk index
calculated in Step 4 for that crossing by the
effectiveness rate of the chosen SSM. (See
appendix A for the effectiveness rates for the
various SSMs). Recalculate the Quiet Zone
Risk Index by averaging the revised inflated
risk index with the inflated risk indices for
the other public crossings. If this new Quiet
Zone Risk Index is equal to, or less than, the
Nationwide Significant Risk Threshold, the
quiet zone would qualify for public authority
designation. If the Quiet Zone Risk Index is
still higher than the Nationwide Significant
Risk Threshold, treat another public cross-
ing with an appropriate SSM and repeat the
process until the Quiet Zone Risk Index is
equal to, or less than, the Nationwide Sig-
nificant Risk Threshold. Once this result is
obtained, the quiet zone will qualify for es-
tablishment by public authority designation.
Early in the quiet zone development process,
a Notice of Intent should be provided by the
public authority, which will trigger a 60-day
comment period. During this 60-day com-
ment period, railroads operating within the
proposed quiet zone and State agencies re-
sponsible for grade crossing, highway and
road safety may provide comments on the
proposed quiet zone improvements described
in the Notice of Intent. Once all the nec-
essary safety improvements have been im-
plemented, Notice of Quiet Zone Establish-
ment must be provided. With this approach,
FRA will annually recalculate the Nation-
wide Significant Risk Threshold and the
Quiet Zone Risk Index. If the Quiet Zone
Risk Index for the quiet zone rises above the
Nationwide Significant Risk Threshold, FRA
will notify the public authority so that ap-
propriate measures can be taken. (See
§ 222.51(a)). 7. If the public authority wishes to reduce
the risk of the quiet zone to the level of risk
that would exist if the horn were sounded at
every crossing within the quiet zone, the
public authority should calculate the initial
Quiet Zone Risk Index as in Step 4. The ob-
jective is to now reduce the Quiet Zone Risk
Index to the level of the Risk Index with
Horns by adding SSMs at the crossings. The
difference between the Quiet Zone Risk
Index and the Risk Index with Horns is the
amount of risk that will have to be reduced
in order to fully compensate for lack of the
train horn. The use of the Quiet Zone Calcu-
lator will aid in determining which SSMs
may be used to reduce the risk sufficiently.
Follow the procedure stated in Step 6, except
that the Quiet Zone Risk Index must be
equal to, or less than, the Risk Index with
Horns instead of the Nationwide Significant
Risk Threshold. Once this risk level is at-
tained, the quiet zone will qualify for estab-
lishment by public authority designation.
Early in the quiet zone development process,
a Notice of Intent should be provided by the
public authority, which will trigger a 60-day
comment period. During this 60-day com-
ment period, railroads operating within the
proposed quiet zone and State agencies re-
sponsible for grade crossing, highway and
road safety may provide comments on the
proposed quiet zone improvements described
in the Notice of Intent. Once all the nec-
essary safety improvements have been im-
plemented, Notice of Quiet Zone Establish-
ment must be provided. One important dis-
tinction with this option is that the public
authority will never need to be concerned
with the Nationwide Significant Risk
Threshold or the Quiet Zone Risk Index. The
rule’s intent is to make the quiet zone as
safe as if the train horns were sounding. If
this is accomplished, the public authority
may designate the crossings as a quiet zone
and need not be concerned with possible fluc-
tuations in the Nationwide Significant Risk
Threshold or annual risk reviews.
C. New Quiet Zones—Public Authority
Application to FRA
A public authority must apply to FRA for
approval of a quiet zone under three condi-
tions. First, if any of the SSMs selected for
the quiet zone do not fully conform to the
design standards set forth in appendix A.
These are referred to as modified SSMs in
appendix B. Second, when programmed law
enforcement, public education and awareness
programs, or photo enforcement is used to
reduce risk in the quiet zone, these are re-
ferred to as non-engineering ASMs in appen-
dix B. It should be remembered that non-en-
gineering ASMs will require periodic moni-
toring as long as the quiet zone is in exist-
ence. Third, when engineering ASMs are used
to reduce risk. Please see appendix B for de-
tailed explanations of ASMs and the periodic
monitoring of non-engineering ASMs.
The public authority is strongly encour-
aged to submit the application to FRA for
review and comment before the appendix B
treatments are initiated. This will enable
FRA to provide comments on the proposed
ASMs to help guide the application process.
If non-engineering ASMs or engineering
ASMs are proposed, the public authority also
may wish to confirm with FRA that the
methodology it plans to use to determine the
effectiveness rates of the proposed ASMs is
appropriate. A quiet zone that utilizes a
combination of SSMs from appendix A and
ASMs from appendix B must make a Public
Authority Application to FRA. A complete
and thoroughly documented application will
help to expedite the approval process.
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49 CFR Ch. II (10–1–18 Edition) Pt. 222, App. C
The following discussion is meant to pro-
vide guidance on the steps necessary to es-
tablish a new quiet zone using the Public Au-
thority Application to FRA method. Once
again it should be remembered that all pub-
lic crossings must be equipped with auto-
matic warning devices consisting of flashing
lights and gates in accordance with
§ 222.35(b).1. Gather the information previously men-
tioned in the section on ‘‘Requirements for
both Public Authority Designation and Pub-
lic Authority Application.’’ 2. Calculate the risk index for each public
crossing as directed in Step 2—Public Au-
thority Designation. 3. Calculate the Crossing Corridor Risk
Index, which is also the Risk Index with
Horns, as directed in Step 3—Public Author-
ity Designation. 4. Calculate the initial Quiet Zone Risk
Index as directed in Step 4—Public Author-
ity Designation. 5. Begin to reduce the Quiet Zone Risk
Index through the use of ASMs and SSMs.
Follow the procedure provided in Step 6—
Public Authority Designation until the
Quiet Zone Risk Index has been reduced to
equal to, or less than, either the Nationwide
Significant Risk Threshold or the Risk Index
with Horns. (Remember that the public au-
thority may choose which level of risk re-
duction is the most appropriate for its com-
munity.) Effectiveness rates for ASMs should
be provided as follows: a. Modified SSMs—Estimates of effective-
ness for modified SSMs may be based upon
adjustments from the effectiveness rates
provided in appendix A or from actual field
data derived from the crossing sites. The ap-
plication must provide an estimated effec-
tiveness rate and the rationale for the esti-
mate. b. Non-engineering ASMs—Effectiveness
rates are to be calculated in accordance with
the provisions of appendix B, paragraph II B. c. Engineering ASMs—Effectiveness rates
are to be calculated in accordance with the
provisions of appendix B, paragraph III B. 6. Once it has been determined through
analysis that the Quiet Zone Risk Index will
be reduced to a level equal to, or less than,
either the Nationwide Significant Risk
Threshold or the Risk Index with Horns, the
public authority must provide a Notice of In-
tent. The mailing of the Notice of Intent will
trigger a 60-day comment period, during
which railroads operating within the pro-
posed quiet zone and State agencies respon-
sible for grade crossing, highway and road
safety may provide comments on the pro-
posed quiet zone improvements. After re-
viewing any comments received, the public
authority may make application to FRA for
a quiet zone under § 222.39(b). FRA will re-
view the application to determine the appro-
priateness of the proposed effectiveness
rates, and whether or not the proposed appli-
cation demonstrates that the quiet zone
meets the requirements of the rule. When
submitting the application to FRA for ap-
proval, the application must contain the fol-
lowing (§ 222.39(b)(1)):
a. Sufficient detail concerning the present
safety measures at all crossings within the
proposed quiet zone. This includes current
and accurate crossing inventory forms for
each public, private, and pedestrian grade
crossing.
b. Detailed information on the safety im-
provements that are proposed to be imple-
mented at public, private and pedestrian
grade crossings within the proposed quiet
zone.
c. Membership and recommendations of
the diagnostic team (if any) that reviewed
the proposed quiet zone.
d. Statement of efforts taken to address
comments submitted by affected railroads,
the State agency responsible for grade cross-
ing safety, and the State agency responsible
for highway and road safety, including a list
of any objections raised by the railroads or
State agencies.
e. A commitment to implement the pro-
posed safety measures.
f. Demonstrate through data and analysis
that the proposed measures will reduce the
Quiet Zone Risk Index to a level equal to, or
less than, either the Nationwide Significant
Risk Threshold or the Risk Index with
Horns.
g. A copy of the application must be pro-
vided to: All railroads operating over the
public highway-rail grade crossings within
the quiet zone; the highway or traffic control
or law enforcement authority having juris-
diction over vehicular traffic at grade cross-
ings within the quiet zone; the landowner
having control over any private crossings
within the quiet zone; the State agency re-
sponsible for highway and road safety; the
State agency responsible for grade crossing
safety; and the Associate Administrator.
(§ 222.39(b)(3))
7. Upon receiving written approval from
FRA of the quiet zone application, the public
authority may then provide the Notice of
Quiet Zone Establishment and implement
the quiet zone. If the quiet zone is qualified
by reducing the Quiet Zone Risk Index to a
level at, or below, the Nationwide Signifi-
cant Risk Threshold, FRA will annually re-
calculate the Nationwide Significant Risk
Threshold and the Quiet Zone Risk Index. If
the Quiet Zone Risk Index for the quiet zone
rises above the Nationwide Significant Risk
Threshold, FRA will notify the public au-
thority so that appropriate measures can be
taken. (See § 222.51(a))
NOTE: The provisions stated above for
crossing closures, grade separations, wayside
horns, pre-existing SSMs and pre-existing
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modified SSMs apply for Public Authority
Application to FRA as well.
SECTION III—PRE-RULE QUIET ZONES
Pre-Rule Quiet Zones are treated slightly
differently from New Quiet Zones in the rule.
This is a reflection of the statutory require-
ment to ‘‘take into account the interest of
communities that have in effect restrictions
on the sounding of a locomotive horn at
highway-rail grade crossings. * * *’’ (49
U.S.C. 20153(i)) It also recognizes the histor-
ical experience of train horns not being
sounded at Pre-Rule Quiet Zones.
Overview
Pre-Rule Quiet Zones that are not estab-
lished by automatic approval (see discussion
that follows) must meet the same require-
ments as New Quiet Zones as provided in
§ 222.39. In other words, risk must be reduced
through the use of SSMs or ASMs so that the
Quiet Zone Risk Index for the quiet zone has
been reduced to either the risk level which
would exist if locomotive horns sounded at
all crossings in the quiet zone (i.e. the Risk
Index with Horns) or to a risk level equal to,
or less than, the Nationwide Significant Risk
Threshold. There are four differences in the
requirements between Pre-Rule Quiet Zones
and New Quiet Zones that must be noted.
(1) First, since train horns have not been
routinely sounded in the Pre-Rule Quiet
Zone, it is not necessary to increase the risk
indices of the public crossings to reflect the
additional risk caused by the lack of a train
horn. Since the train horn has already been
silenced, the added risk caused by the lack of
a horn is reflected in the actual collision his-
tory at the crossings. Collision history is an
important part in the calculation of the se-
verity risk indices. In other words, the Quiet
Zone Risk Index is calculated by averaging
the existing risk index for each public cross-
ing without the need to increase the risk
index by 66.8%. For Pre-Rule Quiet Zones,
the Crossing Corridor Risk Index and the ini-
tial Quiet Zone Risk Index have the same
value.
(2) Second, since train horns have been si-
lenced at the crossings, it will be necessary
to mathematically determine what the risk
level would have been at the crossings if
train horns had been routinely sounded.
These revised risk levels then will be used to
calculate the Risk Index with Horns. This
calculation is necessary to determine how
much risk must be eliminated in order to
compensate for the lack of the train horn.
This will allow the public authority to have
the choice to reduce the risk to at least the
level of the Nationwide Significant Risk
Threshold or to fully compensate for the
lack of the train horn.
To calculate the Risk Index with Horns,
the first step is to divide the existing sever-
ity risk index for each crossing by the appro-
priate value as shown in Table 1. This proc-
ess eliminates the risk that was caused by
the absence of train horns. The table takes
into account that the train horn has been
found to produce different levels of effective-
ness in preventing collisions depending on
the type of warning device at the crossing.
(Note: FRA’s web-based Quiet Zone Calcu-
lator will perform this computation auto-
matically for Pre-Rule Quiet Zones.) The
Risk Index with Horns is the average of the
revised risk indices. The difference between
the calculated Risk Index with Horns and
the Quiet Zone Risk Index is the amount of
risk that would have to be reduced in order
to fully compensate for the lack of train
horns.
TABLE 1—RISK INDEX DIVISOR VALUES
Passive Flashing lights
Lights & gates
U.S ................................. 1.749 1.309 1.668
(3) The third difference is that credit is
given for the risk reduction that is brought
about through the upgrading of the warning
devices at public crossings (§ 222.35(b)(3)). For
New Quiet Zones, all crossings must be
equipped with automatic warning devices
consisting of flashing lights and gates. Cross-
ings without gates must have gates in-
stalled. The severity risk index for that
crossing is then calculated to establish the
risk index that is used in the Risk Index with
Horns. The Risk Index with Horns is then in-
creased by 66.8% to adjust for the lack of the
train horn. The adjusted figure is the initial
Quiet Zone Risk Index. There is no credit re-
ceived for the risk reduction that is attrib-
utable to warning device upgrades in New
Quiet Zones.
For Pre-Rule Quiet Zones, the Risk Index
with Horns is calculated from the initial risk
indices which use the warning devices that
are currently installed. If a public authority
elects to upgrade an existing warning device
as part of its quiet zone plan, the accident
prediction value for that crossing will be re-
calculated based on the upgraded warning
device. (Once again, FRA’s web-based Quiet
Zone Calculator can do the actual computa-
tion.) The new accident prediction value is
then used in the severity risk index formula
to determine the risk index for the crossing.
This adjusted risk index is then used to com-
pute the new Quiet Zone Risk Index. This
computation allows the risk reduction at-
tributed to the warning device upgrades to
be used in establishing a quiet zone.
(4) The fourth difference is that Pre-Rule
Quiet Zones have different minimum re-
quirements under § 222.35. A Pre-Rule Quiet
Zone may be less than one-half mile in
length if that was its length as of October 9,
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49 CFR Ch. II (10–1–18 Edition) Pt. 222, App. C
1996 (§ 222.35(a)(2)). A Pre-Rule Quiet Zone
does not have to have automatic warning de-
vices consisting of flashing lights and gates
at every public crossing (§ 222.35(b)(3)). The
existing crossing safety warning systems in
place as of December 18, 2003 may be retained
but cannot be downgraded. It also is not nec-
essary for the automatic warning devices to
be equipped with constant warning time de-
vices or power out indicators; however, when
the warning devices are upgraded, constant
warning time and power out indicators will
be required if reasonably practical
(§ 222.35(b)(3)). Advance warning signs that
notify the motorist that train horns are not
sounded do not have to be installed on each
approach to public, private, and pedestrian
grade crossings within the quiet zone until
June 24, 2008. (§§ 222.27(d) and 222.35(c)) Simi-
larly, STOP signs and crossbucks do not
have to be installed on each approach to pri-
vate crossings within the quiet zone until
June 24, 2008. (§ 222.25(c)).
A. Requirements for Both Public Authority Des-ignation and Public Authority Application— Pre-Rule Quiet Zones
The following is necessary when estab-
lishing a Pre-Rule Quiet Zone. This informa-
tion pertains to Automatic Approval, the
Public Authority Designation and Public Au-
thority Application to FRA methods. 1. Determine all public, private and pedes-
trian at-grade crossings that will be included
within the quiet zone. Also determine any
existing grade separated crossings that fall
within the quiet zone. Each crossing must be
identified by the U.S. DOT Crossing Inven-
tory number and street name. If a crossing
does not have a U.S. DOT crossing number,
then contact FRA for assistance. 2. Document the length of the quiet zone.
It is not necessary that the quiet zone be at
least one-half mile in length. Pre-Rule Quiet
Zones may be shorter than one-half mile.
However, the addition of a new crossing that
is not a part of an existing Pre-Rule Quiet
Zone to a quiet zone nullifies its pre-rule sta-
tus, and the resulting New Quiet Zone must
be at least one-half mile. The deletion of a
crossing from a Pre-Rule Quiet Zone (except
through closure or grade separation) must
result in a quiet zone that is at least one-
half mile in length. It is the intent of the
rule to allow adjacent Pre-Rule Quiet Zones
to be combined into one large pre-rule quiet
zone if the respective public authorities de-
sire to do so. (§ 222.35(a)(2)) 3. A complete and accurate Grade Crossing
Inventory Form must be on file with FRA
for all crossings (public, private and pedes-
trian) within the quiet zone. An inspection of
each crossing in the proposed quiet zone
should be performed and the Grade Crossing
Inventory Forms updated, as necessary, to
reflect the current conditions at each cross-
ing.
4. Pre-Rule Quiet Zones must retain, and
may upgrade, the existing grade crossing
safety warning systems. Unlike New Quiet
Zones, it is not necessary that every public
crossing within a Pre-Rule Quiet Zone be
equipped with active warning devices com-
prising both flashing lights and gates. Exist-
ing warning devices need not be equipped
with power out indicators and constant
warning time circuitry. If warning devices
are upgraded to flashing lights, or flashing
lights and gates, the upgraded equipment
must include, as is required for New Quiet
Zones, power out indicators and constant
warning time devices (if reasonably prac-
tical). (§ 222.35(b)(3)) 5. By June 24, 2008, private crossings must
have cross-bucks and ‘‘STOP’’ signs on both
approaches to the crossing. (§ 222.25(c)) 6. By June 24, 2008, each approach to a pub-
lic, private, and pedestrian crossing must be
equipped with an advance warning sign that
conforms to the MUTCD and advises pedes-
trians and motorists that train horns are not
sounded at the crossing. (§§ 222.27(d),
222.35(c)) 7. It will be necessary for the public au-
thority to provide a Notice of Quiet Zone
Continuation in order to prevent the resump-
tion of locomotive horn sounding when the
rule becomes effective. A detailed discussion
of the requirements of § 222.43(c) is provided
in Section IV of this appendix. The Notice of
Quiet Zone Continuation must be provided to
the appropriate parties by all Pre-Rule Quiet
Zones that have not established quiet zones
by automatic approval. This should be done
no later than June 3, 2005 to ensure that
train horns will not start being sounded on
June 24, 2005. A Pre-Rule Quiet Zone may
provide a Notice of Quiet Zone Continuation
before it has determined whether or not it
qualifies for automatic approval. Once it has
been determined that the Pre-Rule Quiet
Zone will be established by automatic ap-
proval, the Public Authority must provide
the Notice of Quiet Zone Establishment.
This must be accomplished no later than De-
cember 24, 2005. If the Pre-Rule Quiet Zone
will not be established by automatic ap-
proval, the Notice of Quiet Zone Continu-
ation will enable the train horns to be si-
lenced until June 24, 2008. (Please refer to
§ 222.41(c) for more information.)
B. Pre-Rule Quiet Zones—Automatic Approval
In order for a Pre-Rule Quiet Zone to be es-
tablished under this rule (§ 222.41(a)), one of
the following conditions must be met: a. One or more SSMs as identified in ap-
pendix A are installed at each public crossing
in the quiet zone; b. The Quiet Zone Risk Index is equal to,
or less than, the Nationwide Significant Risk
Threshold; c. The Quiet Zone Risk Index is above the
Nationwide Significant Risk Threshold but
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less than twice the Nationwide Significant
Risk Threshold and there have been no rel-
evant collisions at any public grade crossing
within the quiet zone for the preceding five
years; or d. The Quiet Zone Risk Index is equal to,
or less than, the Risk Index With Horns. Additionally, the Pre-Rule Quiet Zone
must be in compliance with the minimum re-
quirements for quiet zones (§ 222.35) and the
notification requirements in § 222.43. The following discussion is meant to pro-
vide guidance on the steps necessary to de-
termine if a Pre-Rule Quiet Zone qualifies
for automatic approval. 1. All of the items listed in Requirements for
Both Public Authority Designation and Public Authority Application—Pre-Rule Quiet Zones previously mentioned are to be accom-
plished. Remember that a Pre-Rule Quiet
Zone may be less than one-half mile in
length if that was its length as of October 9,
1996. Also, a Pre-Rule Quiet Zone does not
have to have automatic warning devices con-
sisting of flashing lights and gates at every
public crossing. 2. If one or more SSMs as identified in ap-
pendix A are installed at each public cross-
ing in the quiet zone, the quiet zone qualifies
and the public authority may provide the
Notice of Quiet Zone Establishment. If the
Pre-Rule Quiet Zone does not qualify by this
step, proceed on to the next step. 3. Calculate the risk index for each public
crossing within the quiet zone (See appendix
D.) Be sure that the risk index is calculated
using the formula appropriate for the type of
warning device that is actually installed at
the crossing. Unlike New Quiet Zones, it is
not necessary to calculate the risk index
using flashing lights and gates as the warn-
ing device at every public crossing. (FRA’s
web-based Quiet Zone Calculator may be
used to simplify the calculation process). If
the Inventory record does not reflect the ac-
tual conditions at the crossing, be sure to
use the conditions that currently exist when
calculating the risk index. 4. The Quiet Zone Risk Index is then cal-
culated by averaging the risk index for each
public crossing within the proposed quiet
zone. (Note: The initial Quiet Zone Risk
Index and the Crossing Corridor Risk Index
are the same for Pre-Rule Quiet Zones.) 5. Compare the Quiet Zone Risk Index to
the Nationwide Significant Risk Threshold.
If the Quiet Zone Risk Index is equal to, or
less than, the Nationwide Significant Risk
Threshold, then the quiet zone qualifies, and
the public authority may provide the Notice
of Quiet Zone Establishment. With this ap-
proach, FRA will annually recalculate the
Nationwide Significant Risk Threshold and
the Quiet Zone Risk. If the Quiet Zone Risk
Index for the quiet zone is found to be above
the Nationwide Significant Risk Threshold,
FRA will notify the public authority so that
appropriate measures can be taken (See
§ 222.51(b)). If the Pre-Rule Quiet Zone is not
established by this step, proceed on to the
next step. 6. If the Quiet Zone Risk Index is above the
Nationwide Significant Risk Threshold but
less than twice the Nationwide Significant
Risk Threshold and there have been no rel-
evant collisions at any public grade crossing
within the quiet zone for the preceding five
years, then the quiet zone qualifies for auto-
matic approval. However, in order to qualify
on this basis, the public authority must pro-
vide a Notice of Quiet Zone Establishment
by December 24, 2005. (Note: A relevant colli-
sion means a collision at a highway-rail
grade crossing between a train and a motor
vehicle, excluding the following: a collision
resulting from an activation failure of an ac-
tive grade crossing warning system; a colli-
sion in which there is no driver in the motor
vehicle; or a collision where the highway ve-
hicle struck the side of the train beyond the
fourth locomotive unit or rail car.) With this
approach, FRA will annually recalculate the
Nationwide Significant Risk Threshold and
the Quiet Zone Risk. If the Quiet Zone Risk
Index for the quiet zone is above two times
the Nationwide Significant Risk Threshold,
or a relevant collision has occurred during
the preceding year, FRA will notify the pub-
lic authority so that appropriate measures
can be taken (See § 222.51(b)). If the Pre-Rule Quiet Zone is not estab-
lished by automatic approval, continuation
of the quiet zone may require implementa-
tion of SSMs or ASMs to reduce the Quiet
Zone Risk Index for the quiet zone to a risk
level equal to, or below, either the risk level
which would exist if locomotive horns sound-
ed at all crossings in the quiet zone (i.e. the
Risk Index with Horns) or the Nationwide
Significant Risk Threshold. This is the same
methodology used to create New Quiet Zones
with the exception of the four differences
previously noted. A review of the previous
discussion on the two methods used to estab-
lish quiet zones may prove helpful in deter-
mining which would be the most beneficial
to use for a particular Pre-Rule Quiet Zone.
C. Pre-Rule Quiet Zones—Public Authority Designation
The following discussion is meant to pro-
vide guidance on the steps necessary to es-
tablish a Pre-Rule Quiet Zone using the Pub-
lic Authority Designation method. 1. The public authority must provide a No-
tice of Intent (§§ 222.43(a)(1) and 222.43(b)) to
the railroads that operate within the pro-
posed quiet zone, the State agency respon-
sible for highway and road safety and the
State agency responsible for grade crossing
safety. This notice must be mailed by Feb-
ruary 24, 2008, in order to continue existing
locomotive horn restrictions beyond June 24,
2008 without interruption. The purpose of
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49 CFR Ch. II (10–1–18 Edition) Pt. 222, App. C
this Notice of Intent is to provide an oppor-
tunity for the railroads and the State agen-
cies to provide comments and recommenda-
tions to the public authority as it is plan-
ning the quiet zone. They will have 60 days
to provide these comments to the public au-
thority. The Notice of Intent must be pro-
vided, if new SSMs or ASMs will be imple-
mented within the quiet zone. FRA encour-
ages public authorities to provide the re-
quired Notice of Intent early in the quiet
zone development process. The railroads and
State agencies can provide an expertise that
very well may not be present within the pub-
lic authority. FRA believes that it will be
very useful to include these organizations in
the planning process. For example, including
them in the inspections of the crossing will
help ensure accurate Inventory information
for the crossings. Note: Please see Section IV
for details on the requirements of a Notice of
Intent. 2. All of the items listed in ‘‘Requirements
for Both Public Authority Designation and
Public Authority Application—Pre-Rule
Quiet Zones’’ previously mentioned are to be
accomplished. Remember that a Pre-Rule
Quiet Zone may be less than one-half mile in
length if that was its length as of October 9,
1996. Also, a Pre-Rule Quiet Zone does not
have to have automatic warning devices con-
sisting of flashing lights and gates at every
public crossing. 3. Calculate the risk index for each public
crossing within the quiet zone as in Step 3—
Pre-Rule Quiet Zones—Automatic Approval. 4. The Crossing Corridor Risk Index is then
calculated by averaging the risk index for
each public crossing within the proposed
quiet zone. Since train horns are not being
sounded for crossings, this value is actually
the initial Quiet Zone Risk Index. 5. Calculate Risk Index with Horns by the
following: a. For each public crossing, divide the risk
index that was calculated in Step 2 by the
appropriate value in Table 1. This produces
the risk index that would have existed had
the train horn been sounded. b. Average these reduced risk indices to-
gether. The resulting average is the Risk
Index with Horns. 6. Begin to reduce the Quiet Zone Risk
Index through the use of SSMs or by upgrad-
ing existing warning devices. Follow the pro-
cedure provided in Step 6—Public Authority
Designation until the Quiet Zone Risk Index
has been reduced to a level equal to, or less
than, either the Nationwide Significant Risk
Threshold or the Risk Index with Horns. A
public authority may elect to upgrade an ex-
isting warning device as part of its Pre-Rule
Quiet Zone plan. When upgrading a warning
device, the accident prediction value for that
crossing must be re-calculated for the new
warning device. Determine the new risk
index for the upgraded crossing by using the
new accident prediction value in the severity
risk index formula. This new risk index is
then used to compute the new Quiet Zone
Risk Index. (Remember that FRA’s web-
based Quiet Zone Calculator will be able to
do the actual computations.) Once the Quiet
Zone Risk Index has been reduced to a level
equal to, or less than, either the Nationwide
Significant Risk Threshold or the Risk Index
with Horns, the quiet zone may be estab-
lished by the Public Authority Designation
method, and the public authority may pro-
vide the Notice of Quiet Zone Establishment
once all the necessary improvements have
been installed. If the quiet zone is estab-
lished by reducing the Quiet Zone Risk Index
to a risk level equal to, or less than, the Na-
tionwide Significant Risk Threshold, FRA
will annually recalculate the Nationwide
Significant Risk Threshold and the Quiet
Zone Risk Index. If the Quiet Zone Risk
Index for the quiet zone rises above the Na-
tionwide Significant Risk Threshold, FRA
will notify the public authority so that ap-
propriate measures can be taken (See
§ 222.51(b)).
7. If the Pre-Rule Quiet Zone will not be es-
tablished before June 24, 2008, the public au-
thority must file a detailed plan for quiet
zone improvements with the Associate Ad-
ministrator by June 24, 2008. By providing a
Notice of Intent (see Step 1 above) and a de-
tailed plan for quiet zone improvements, ex-
isting locomotive horn restrictions may con-
tinue until June 24, 2010. (If a comprehensive
State-wide implementation plan and funding
commitment are also provided and safety
improvements are initiated within at least
one Pre-Rule Quiet Zone or Pre-Rule Partial
Quiet Zone, existing locomotive horn restric-
tions may continue until June 24, 2013.) (See
§ 222.41(c) for more information.)
NOTE: The provisions stated above for
crossing closures, grade separations, wayside
horns, pre-existing SSMs and pre-existing
modified SSMs apply for Public Authority
Application to FRA as well.
D. Pre-Rule Quiet Zones—Public Authority
Application to FRA
The following discussion is meant to pro-
vide guidance on the steps necessary to es-
tablish a Pre-Rule Quiet Zone using the Pub-
lic Authority Application to FRA method.
1. The public authority must provide a No-
tice of Intent (§§ 222.43(a)(1) and 222.43(b)) to
the railroads that operate within the pro-
posed quiet zone, the State agency respon-
sible for highway and road safety and the
State agency responsible for grade crossing
safety. This notice must be mailed by Feb-
ruary 24, 2008, in order to continue existing
locomotive horn restrictions beyond June 24,
2008 without interruption. The purpose of
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this Notice of Intent is to provide an oppor-
tunity for the railroads and the State agen-
cies to provide comments and recommenda-
tions to the public authority as it is plan-
ning the quiet zone. They will have 60 days
to provide these comments to the public au-
thority. The Notice of Intent must be pro-
vided, if new SSMs or ASMs will be imple-
mented within the quiet zone. FRA encour-
ages public authorities to provide the re-
quired Notice of Intent early in the quiet
zone development process. The railroads and
State agencies can provide an expertise that
very well may not be present within the pub-
lic authority. FRA believes that it will be
very useful to include these organizations in
the planning process. For example, including
them in the inspections of the crossing will
help ensure accurate Inventory information
for the crossings. Note: Please see Section IV
for details on the requirements of a Notice of
Detailed Plan. 2. All of the items listed in ‘‘Requirements
for both Public Authority Designation and
Public Authority Application—Pre-Rule
Quiet Zones’’ previously mentioned are to be
accomplished. Remember that a Pre-Rule
Quiet Zone may be less than one-half mile in
length if that was its length as of October 9,
1996. Also, a Pre-Rule Quiet Zone does not
have to have automatic warning devices con-
sisting of flashing lights and gates at every
public crossing. 3. Calculate the risk index for each public
crossing within the quiet zone (See appendix
D. FRA’s web-based Quiet Zone Calculator
may be used to simplify the calculation
process). If the Inventory record does not re-
flect the actual conditions at the crossing,
be sure to use the conditions that currently
exist when calculating the risk index. 4. The Crossing Corridor Risk Index is then
calculated by averaging the risk index for
each public crossing within the proposed
quiet zone. Since train horns are not being
sounded for crossings, this value is actually
the initial Quiet Zone Risk Index. 5. Calculate Risk Index with Horns by the
following: a. For each public crossing, divide its risk
index that was calculated in Step 2 by the
appropriate value in Table 1. This produces
the risk index that would have existed had
the train horn been sounded. b. Average these reduced risk indices to-
gether. The resulting average is the Risk
Index with Horns. 6. Begin to reduce the Quiet Zone Risk
Index through the use of ASMs and/or SSMs.
Follow the procedure provided in Step 6—
New Quiet Zones Public Authority Designa-
tion—until the Quiet Zone Risk Index has
been reduced to a level equal to, or less than,
either the Nationwide Significant Risk
Threshold or the Risk Index with Horns. A
public authority may elect to upgrade an ex-
isting warning device as part of its Pre-Rule
Quiet Zone plan. When upgrading a warning
device, the accident prediction value for that
crossing must be re-calculated for the new
warning device. Determine the new risk
index for the upgraded crossing by using the
new accident prediction value in the severity
risk index formula. (Remember that FRA’s
web-based quiet zone risk calculator will be
able to do the actual computations.) This
new risk index is then used to compute the
new Quiet Zone Risk Index. Effectiveness
rates for ASMs should be provided as follows: a. Modified SSMs—Estimates of effective-
ness for modified SSMs may be based upon
adjustments from the benchmark levels pro-
vided in appendix A or from actual field data
derived from the crossing sites. The applica-
tion must provide an estimated effectiveness
rate and the rationale for the estimate. b. Non-engineering ASMs—Effectiveness
rates are to be calculated in accordance with
the provisions of appendix B, section II B. c. Engineering ASMs—Effectiveness rates
are to be calculated in accordance with the
provisions of appendix B, section III B. 7. Once it has been determined through
analysis that the Quiet Zone Risk Index will
be reduced to a level equal to, or less than,
either the Nationwide Significant Risk
Threshold or the Risk Index with Horns, the
public authority may make application to
FRA for a quiet zone under § 222.39(b). FRA
will review the application to determine the
appropriateness of the proposed effectiveness
rates, and whether or not the proposed appli-
cation demonstrates that the quiet zone
meets the requirements of the rule. When
submitting the application to FRA for ap-
proval, it should be remembered that the ap-
plication must contain the following
(§ 222.39(b)(1)): a. Sufficient detail concerning the present
safety measures at all crossings within the
proposed quiet zone to enable the Associate
Administrator to evaluate their effective-
ness. This includes current and accurate
crossing Inventory forms for each public, pri-
vate and pedestrian grade crossing. b. Detailed information on the safety im-
provements, including upgraded warning de-
vices that are proposed to be implemented at
public, private, and pedestrian grade cross-
ings within the proposed quiet zone. c. Membership and recommendations of
the diagnostic team (if any) that reviewed
the proposed quiet zone. d. Statement of efforts taken to address
comments submitted by affected railroads,
the State agency responsible for grade cross-
ing safety, and the State agency responsible
for highway and road safety, including a list
of any objections raised by the railroads or
State agencies. e. A commitment to implement the pro-
posed safety measures. f. Demonstrate through data and analysis
that the proposed measures will reduce the
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Quiet Zone Risk Index to a level at, or below,
either the Nationwide Significant Risk
Threshold or the Risk Index with Horns.
g. A copy of the application must be pro-
vided to all railroads operating over the pub-
lic highway-rail grade crossings within the
quiet zone; the highway or traffic control or
law enforcement authority having jurisdic-
tion over vehicular traffic at grade crossings
within the quiet zone; the landowner having
control over any private crossings within the
quiet zone; the State agency responsible for
highway and road safety; the State agency
responsible for grade crossing safety; and the
Associate Administrator. (§ 222.39(b)(3))
8. Upon receiving written approval from
FRA of the quiet zone application, the public
authority may then provide the Notice of
Quiet Zone Establishment and implement
the quiet zone. If the quiet zone is estab-
lished by reducing the Quiet Zone Risk Index
to a level equal to, or less than, the Nation-
wide Significant Risk Threshold, FRA will
annually recalculate the Nationwide Signifi-
cant Risk Threshold and the Quiet Zone
Risk. If the Quiet Zone Risk Index for the
quiet zone is above the Nationwide Signifi-
cant Risk Threshold, FRA will notify the
public authority so that appropriate meas-
ures can be taken (See § 222.51(b)).
NOTE: The provisions stated above for
crossing closures, grade separations, wayside
horns, pre-existing SSMs and pre-existing
modified SSMs apply for Public Authority
Application to FRA as well.
SECTION IV—REQUIRED NOTIFICATIONS
A. Introduction
The public authority is responsible for pro-
viding notification to parties that will be af-
fected by the quiet zone. There are several
different types of notifications and a public
authority may have to make more than one
notification during the entire process of
complying with the regulation. The notifica-
tion process is to ensure that interested par-
ties are made aware in a timely manner of
the establishment or continuation of quiet
zones. It will also provide an opportunity for
State agencies and affected railroads to pro-
vide input to the public authority during the
development of quiet zones. Specific infor-
mation is to be provided so that the cross-
ings in the quiet zone can be identified. Pro-
viding the appropriate notification is impor-
tant because once the rule becomes effective,
railroads will be obligated to sound train
horns when approaching all public crossings
unless notified in accordance with the rule
that a New Quiet Zone has been established
or that a Pre-Rule or Intermediate Quiet
Zone is being continued.
B. Notice of Intent—§222.43(b)
The purpose of the Notice of Intent is to
provide notice to the railroads and State
agencies that the public authority is plan-
ning on creating a New Quiet Zone or imple-
menting new SSMs or ASMs within a Pre-
Rule Quiet Zone. The Notice of Intent pro-
vides an opportunity for the railroad and the
State agencies to give input to the public au-
thority during the quiet zone development
process. The State agencies and railroads
will be given sixty days to provide informa-
tion and comments to the public agency.
The Notice of Intent must be provided
under the following circumstances:
1. A New Quiet Zone or New Partial Quiet
Zone is under consideration.
2. An Intermediate Quiet Zone or Inter-
mediate Partial Quiet Zone that will be con-
verted into a New Quiet Zone or New Partial
Quiet Zone. Please note that Notice of Intent
must be mailed by April 3, 2006, in order pre-
vent the resumption of locomotive horn
sounding on June 24, 2006.
3. The implementation of SSMs or ASMs
within a Pre-Rule Quiet Zone or Pre-Rule
Partial Quiet Zone is under consideration.
Please note that Notice of Intent must be
mailed by February 24, 2008, in order to con-
tinue existing restrictions on locomotive
horn sounding beyond June 24, 2008 without
interruption. Each public authority that is
creating a New Quiet Zone must provide
written notice, by certified mail, return re-
ceipt requested, to the following:
1. All railroads operating within the pro-
posed quiet zone
2. State agency responsible for highway
and road safety
3. State agency responsible for grade cross-
ing safety
The Notice of Intent must contain the fol-
lowing information:
1. A list of each public highway-rail grade
crossing, private highway-rail grade cross-
ing, and pedestrian crossings within the pro-
posed quiet zone. The crossings are to be
identified by both the U.S. DOT Crossing In-
ventory Number and the street or highway
name.
2. A statement of the time period within
which the restrictions would be in effect on
the routine sounding of train horns (i.e., 24
hours or from 10 p.m. to 7 a.m.).
3. A brief explanation of the public
authority’s tentative plans for implementing
improvements within the proposed quiet
zone.
4. The name and title of the person who
will act as the point of contact during the
quiet zone development process and how that
person can be contacted.
5. A list of the names and addresses of each
party that will receive a copy of the Notice
of Intent.
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The parties that receive the Notice of In-
tent will be able to submit information or
comments to the public authority for 60
days. The public authority will not be able
to establish the quiet zone during the 60 day
comment period unless each railroad and
State agency that receives the Notice of In-
tent provides either written comments to
the public authority or a written statement
waiving its right to provide comments on the
Notice of Intent. The public authority must
provide an affirmation in the Notice of Quiet
Zone Establishment that each of the re-
quired parties was provided the Notice of In-
tent and the date it was mailed. If the quiet
zone is being established within 60 days of
the mailing of the Notice of Intent, the pub-
lic authority also must affirm each of the
parties have provided written comments or
waived its right to provide comments on the
Notice of Intent.
C. Notice of Quiet Zone Continuation—
§ 222.43(c)
The purpose of the Notice of Quiet Zone
Continuation is to provide a means for the
public authority to formally advise affected
parties that an existing quiet zone is being
continued after the effective date of the rule.
All Pre-Rule, Pre-Rule Partial, Intermediate
and Intermediate Partial Quiet Zones must
provide this Notice of Quiet Zone Continu-
ation no later than June 3, 2005 to ensure
that train horns are not sounded at public
crossings when the rule becomes effective on
June 24, 2005. This will enable railroads to
properly comply with the requirements of
the Final Rule.
Each public authority that is continuing
an existing Pre-Rule, Pre-Rule Partial, In-
termediate and Intermediate Partial Quiet
Zone must provide written notice, by cer-
tified mail, return receipt requested, to the
following:
1. All railroads operating over the public
highway-rail grade crossings within the
quiet zone;
2. The highway or traffic control or law en-
forcement authority having jurisdiction over
vehicular traffic at grade crossings within
the quiet zone;
3. The landowner having control over any
private crossings within the quiet zone;
4. The State agency responsible for high-
way and road safety;
5. The State agency responsible for grade
crossing safety; and
6. The Associate Administrator.
The Notice of Quiet Zone Continuation
must contain the following information:
1. A list of each public highway-rail grade
crossing, private highway-rail grade cross-
ing, and pedestrian crossing within the quiet
zone, identified by both U.S. DOT National
Highway-Rail Grade Crossing Inventory
Number and street or highway name.
2. A specific reference to the regulatory
provision that provides the basis for quiet
zone continuation, citing as appropriate,
§ 222.41 or 222.42.
3. A statement of the time period within
which restrictions on the routine sounding of
the locomotive horn will be imposed (i.e., 24
hours or nighttime hours only.)
4. An accurate and complete Grade Cross-
ing Inventory Form for each public highway-
rail grade crossing, private highway-rail
grade crossing, and pedestrian crossing with-
in the quiet zone that reflects conditions
currently existing at the crossing.
5. The name and title of the person respon-
sible for monitoring compliance with the re-
quirements of this part and the manner in
which that person can be contacted.
6. A list of the names and addresses of each
party that will receive the Notice of Quiet
Zone Continuation.
7. A statement signed by the chief execu-
tive officer of each public authority partici-
pating in the continuation of the quiet zone,
in which the chief executive officer certifies
that the information submitted by the public
authority is accurate and complete to the
best of his/her knowledge and belief.
Public authorities should remember that
this notice is required to ensure that train
horns will remain silent. Even if a public au-
thority has not been able to determine
whether its Pre-Rule or Pre-Rule Partial
Quiet Zone qualifies for automatic approval
under the rule, it should issue a Notice of
Quiet Zone Continuation to keep the train
horns silent after the effective date of the
rule.
E. Notice of Quiet Zone Establishment—
§ 222.43(d)
The purpose of the Notice of Quiet Zone
Establishment is to provide a means for the
public authority to formally advise affected
parties that a quiet zone is being established.
Notice of Quiet Zone Establishment must be
provided under the following circumstances:
1. A New Quiet Zone or New Partial Quiet
Zone is being created.
2. A Pre-Rule Quiet Zone or a Pre-Rule
Partial Quiet Zone that qualifies for auto-
matic approval under the rule is being estab-
lished.
3. An Intermediate Quiet Zone or Inter-
mediate Partial Quiet Zone that is creating
a New Quiet Zone under the rule. Please note
that Notice of Quiet Zone Establishment
must be provided by June 3, 2006, in order to
prevent the resumption of locomotive horn
sounding on June 24, 2006.
4. A Pre-Rule Quiet Zone or a Pre-Rule
Partial Quiet Zone that was not established
by automatic approval and has since imple-
mented improvements to establish a quiet
zone in accordance to the rule.
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Each public authority that is establishing
a quiet zone under the above circumstances
must provide written notice, by certified
mail, return receipt requested, to the fol-
lowing: 1. All railroads operating over the public
highway-rail grade crossings within the
quiet zone; 2. The highway or traffic control or law en-
forcement authority having jurisdiction over
vehicular traffic at grade crossings within
the quiet zone; 3. The landowner having control over any
private crossings within the quiet zone; 4. The State agency responsible for high-
way and road safety; 5. The State agency responsible for grade
crossing safety; and 6. The Associate Administrator.
The Notice of Quiet Establishment must
contain the following information: 1. A list of each public highway-rail grade
crossing, private highway-rail grade cross-
ing, and pedestrian crossing within the quiet
zone, identified by both U.S. DOT National
Highway-Rail Grade Crossing Inventory
Number and street or highway name. 2. A specific reference to the regulatory
provision that provides the basis for quiet
zone establishment, citing as appropriate,
§ 222.39(a)(1), 222.39(a)(2)(i), 222.39(a)(2)(ii),
222.39(a)(3), 222.39(b), 222.41(a)(1)(i),
222.41(a)(1)(ii), 222.41(a)(1)(iii), 222.41(a)(1)(iv),
222.41(b)(1)(i), 222.41(b)(1)(ii), 222.41(b)(1)(iii),
or 222.41(b)(1)(iv). (a) If the Notice of Quiet Establishment
contains a specific reference to
§ 222.39(a)(2)(i), 222.39(a)(2)(ii), 222.39(a)(3),
222.41(a)(1)(ii), 222.41(a)(1)(iii), 222.41(a)(1)(iv),
222.41(b)(1)(ii), 222.41(b)(1)(iii), or
222.41(b)(1)(iv), it shall include a copy of the
FRA web page that contains the quiet zone
data upon which the public authority is rely-
ing. (b) If the Notice of Quiet Establishment
contains a specific reference to § 222.39(b), it
shall include a copy of FRA’s notification of
approval. 3. If a diagnostic team review was required
under § 222.25 (private crossings) or § 222.27
(pedestrian crossings), the Notice of Quiet
Establishment shall include a statement af-
firming that the State agency responsible for
grade crossing safety and all affected rail-
roads were provided an opportunity to par-
ticipate in the diagnostic team review. The
Notice of Quiet Establishment shall also in-
clude a list of recommendations made by the
diagnostic team. 4. A statement of the time period within
which restrictions on the routine sounding of
the locomotive horn will be imposed (i.e., 24
hours or from 10 p.m. until 7 a.m.) 5. An accurate and complete Grade Cross-
ing Inventory Form for each public highway-
rail grade crossing, private highway-rail
grade crossing, and pedestrian crossing with-
in the quiet zone that reflects the conditions
existing at the crossing before any new SSMs
or ASMs were implemented.
6. An accurate, complete and current
Grade Crossing Inventory Form for each pub-
lic highway-rail grade crossing, private high-
way-rail grade crossing, and pedestrian
crossing within the quiet zone that reflects
SSMs and ASMs in place upon establishment
of the quiet zone. SSMs and ASMs that can-
not be fully described on the Inventory Form
shall be separately described.
7. If the public authority was required to
provide a Notice of Intent:
(a) The Notice of Quiet Zone Establish-
ment shall contain a statement affirming
that the Notice of Intent was provided in ac-
cordance with the rule. This statement shall
also state the date on which the Notice of In-
tent was mailed.
(b) If the Notice of Quiet Zone Establish-
ment will be mailed less than 60 days after
the date on which the Notice of Intent was
mailed, the Notice of Quiet Zone Establish-
ment shall also contain a written statement
affirming that comments and/or written
waiver statements have been received from
each railroad operating over public grade
crossings within the proposed quiet zone, the
State agency responsible for grade crossing
safety, and the State agency responsible for
highway and road safety.
8. The name and title of the person respon-
sible for monitoring compliance with the re-
quirements of this part and the manner in
which that person can be contacted.
9. A list of the names and addresses of each
party that is receiving a copy of the Notice
of Quiet Establishment.
10. A statement signed by the chief execu-
tive officer of each public authority partici-
pating in the establishment of the quiet
zone, in which the chief executive officer
shall certify that the information submitted
by the public authority is accurate and com-
plete to the best of his/her knowledge and be-
lief.
SECTION V—EXAMPLES OF QUIET ZONE
IMPLEMENTATIONS
Example 1—New Quiet Zone
(a) A public authority wishes to create a
New Quiet Zone over four public crossings.
All of the crossings are equipped with flash-
ing lights and gates, and the length of the
quiet zone is 0.75 mile. There are no private
crossings within the proposed zone.
(b) The tables that follow show the street
name in the first column, and the existing
risk index for each crossing with the horn
sounding (‘‘Crossing Risk Index w/ Horns’’) in
the second. The third column, ‘‘Crossing
Risk Index w/o Horns’’, is the risk index for
each crossing after it has been inflated by
66.8% to account for the lack of train horns.
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The fourth column, ‘‘SSM Eff’’, is the effec-
tiveness of the SSM at the crossing. A zero
indicates that no SSM has been applied. The
last column, ‘‘Crossing Risk Index w/o Horns
Plus SSM’’, is the inflated risk index for the
crossing after being reduced by the imple-
mentation of the SSM. At the bottom of the
table are two values. The first is the Risk
Index with Horns (‘‘RIWH’’) which represents
the average initial amount of risk in the pro-
posed quiet zone with the train horn sound-
ing. The second is the Quiet Zone Risk Index
(‘‘QZRI’’), which is the average risk in the
proposed quiet zone taking into consider-
ation the increased risk caused by the lack
of train horns and the reductions in risk at-
tributable to the installation of SSMs. For
this example it is assumed that the Nation-
wide Significant Risk Threshold is 17,030. In
order for the proposed quiet zone to qualify
under the rule, the Quiet Zone Risk Index
must be reduced to a level at, or below, the
Nationwide Significant Risk Threshold
(17,030) or the Risk Index with Horns.
(c) Table 2 shows the existing conditions in
the proposed quiet zone. SSMs have not yet
been installed. The Risk Index with Horns
for the proposed quiet zone is 11,250. The
Quiet Zone Risk Index without any SSMs is
18,765.
TABLE 2
Street Crossing risk index w/horns
Crossing risk index w/o horns
SSM EFF
Crossing risk index w/o horns plus SSM
A ............................................................................................ 12000 20016 0 20016 B ............................................................................................ 10000 16680 0 16680 C ............................................................................................ 8000 13344 0 13344 D ............................................................................................ 15000 25020 0 25020
RIWH ........................ ........................ QZRI 11250 ........................ ........................ 18765
(d) The public authority decides to install
traffic channelization devices at D Street.
Reducing the risk at the crossing that has
the highest severity risk index will provide
the greatest reduction in risk. The effective-
ness of traffic channelization devices is 0.75.
Table 3 shows the changes in the proposed
quiet zone corridor that would occur when
traffic channelization devices are installed
at D Street. The Quiet Zone Risk Index has
been reduced to 14,073.75. This reduction in
risk would qualify the quiet zone as the risk
has been reduced lower than the Nationwide
Significant Risk Threshold which is 17,030.
TABLE 3
Street Crossing risk index w/horns
Crossing risk index w/o horns
SSM EFF
Crossing risk index w/o horns plus SSM
A ............................................................................................ 12000 20016 0 20016 B ............................................................................................ 10000 16680 0 16680 C ............................................................................................ 8000 13344 0 13344 D ............................................................................................ 15000 25020 0.75 6255
RIWH ........................ ........................ QZRI 11250 ........................ ........................ 14073.75
(e) The public authority realizes that re-
ducing the Quiet Zone Risk Index to a level
below the Nationwide Significant Risk
Threshold will result in an annual re-cal-
culation of the Quiet Zone Risk Index and
comparison to the Nationwide Significant
Risk Threshold. As the Quiet Zone Risk
Index is close to the Nationwide Significant
Risk Threshold (14,074 to 17,030), there is a
reasonable chance that the Quiet Zone Risk
Index may some day exceed the Nationwide
Significant Risk Threshold. This would re-
sult in the quiet zone no longer being quali-
fied and additional steps would have to be
taken to keep the quiet zone. Therefore, the
public authority decides to reduce the risk
further by the use of traffic channelization
devices at A Street. Table 4 shows the re-
sults of this change. The Quiet Zone Risk
Index is now 10,320.75 which is less than the
Risk Index with Horns of 11,250. The quiet
zone now qualifies by fully compensating for
the loss of train horns and will not have to
undergo annual reviews of the Quiet Zone
Risk Index.
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TABLE 4
Street Crossing risk index w/horns
Crossing risk index w/o horns
SSM EFF
Crossing risk index w/o horns plus SSM
A ............................................................................................ 12000 20016 0.75 5004 B ............................................................................................ 10000 16680 0 16680 C ............................................................................................ 8000 13344 0 13344 D ............................................................................................ 15000 25020 0.75 6255
RIWH ........................ ........................ QZRI 11250 ........................ ........................ 10320.75
Example 2—Pre-Rule Quiet Zone
(a) A public authority wishes to qualify a
Pre-Rule Quiet Zone which did not meet the
requirements for Automatic Approval be-
cause the Quiet Zone Risk Index is greater
than twice the Nationwide Significant Risk
Threshold. There are four public crossings in
the Pre-Rule Quiet Zone. Three of the cross-
ings are equipped with flashing lights and
gates, and the fourth (Z Street) is passively
signed with a STOP sign. The length of the
quiet zone is 0.6 mile, and there are no pri-
vate crossings within the proposed zone. (b) The tables that follow are very similar
to the tables in Example 1. The street name
is shown in the first column, and the exist-
ing risk index for each crossing (‘‘Crossing
Risk Index w/o Horns’’) in the second. This is
a change from the first example because the
risk is calculated without train horns sound-
ing because of the existing ban on whistles.
The third column, ‘‘Crossing Risk Index w/
Horns’’, is the risk index for each crossing
after it has been adjusted to reflect what the
risk would have been had train horns been
sounding. This is mathematically done by di-
viding the existing risk index for the three
gated crossing by 1.668. The risk at the pas-
sive crossing at Z Street is divided by 1.749.
(See the above discussion in ‘‘Pre-Rule Quiet
Zones—Establishment Overview’’ for more
information.) The fourth column, ‘‘SSM
Eff’’, is the effectiveness of the SSM at the
crossing. A zero indicates that no SSM has
been applied. The last column, ‘‘Crossing
Risk Index w/o Horns Plus SSM’’, is the risk
index without horns for the crossing after
being reduced for the implementation of the
SSM. At the bottom of the table are two val-
ues. The first is the Risk Index with Horns
(RIWH), which represents the average initial
amount of risk in the proposed quiet zone
with the train horn sounding. The second is
the Quiet Zone Risk Index (‘‘QZRI’’), which
is the average risk in the proposed quiet zone
taking into consideration the increased risk
caused by the lack of train horns and reduc-
tions in risk attributable to the installation
of SSMs. Once again it is assumed that the
Nationwide Significant Risk Threshold is
17,030. The Quiet Zone Risk Index must be re-
duced to either the Nationwide Significant
Risk Threshold (17,030) or to the Risk Index
with Horns in order to qualify under the
rule.
(c) Table 5 shows the existing conditions in
the proposed quiet zone. SSMs have not yet
been installed. The Risk Index with Horns
for the proposed quiet zone is 18,705.83. The
Quiet Zone Risk Index without any SSMs is
31,375. Since the Nationwide Significant Risk
Threshold is less than the calculated Risk
Index with Horns, the public authority’s goal
will be to reduce the risk to at least value of
the Risk Index with Horns. This will qualify
the Pre-Rule Quiet Zone under the rule.
TABLE 5
Street Crossing risk index w/o horns
Crossing risk index w/ horns
SSM EFF
Crossing risk index w/o horns plus SSM
W ........................................................................................... 35,000 20,983.21 0 35,000 X ............................................................................................ 42,000 25,179.86 0 42,000 Y ............................................................................................ 33,500 20,083.93 0 33,500 Z ............................................................................................ 15,000 8,576.33 0 15,000
RIWH ........................ ........................ QZRI 18,705.83 ........................ ........................ 31,375
(d) The Z Street crossing is scheduled to
have flashing lights and gates installed as
part of the state’s highway-rail grade cross-
ing safety improvement plan (Section 130).
While this upgrade is not directly a part of
the plan to authorize a quiet zone, the public
authority may take credit for the risk reduc-
tion achieved by the improvement from a
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Federal Railroad Administration, DOT Pt. 222, App. D
passive STOP sign crossing to a crossing
equipped with flashing lights and gates. Un-
like New Quiet Zones, upgrades to warning
devices in Pre-Rule Quiet Zones do con-
tribute to the risk reduction necessary to
qualify under the rule. Table 6 shows the
quiet zone corridor after including the warn-
ing device upgrade at Z Street. The Quiet
Zone Risk Index has been reduced to 29,500.
TABLE 6
Street Crossing risk index w/o horns
Crossing risk index w/ horns
SSM EFF
Crossing risk index w/o horns plus SSM
W ........................................................................................... 35,000 20,983.21 0 35,000 X ............................................................................................ 42,000 25,179.86 0 42,000 Y ............................................................................................ 33,500 20,083.93 0 33,500 Z ............................................................................................ 7,500 8,576.33 0 7,500
RIWH ........................ ........................ QZRI 18,705.83 ........................ ........................ 29,500
(e) The public authority elects to install
four-quadrant gates without vehicle presence
detection at X Street. As shown in Table 7,
this reduces the Quiet Zone Risk Index to
20,890. This risk reduction is not sufficient to
quality as quiet zone under the rule.
TABLE 7
Street Crossing risk index w/o horns
Crossing risk index w/ horns
SSM EFF
Crossing risk index w/o horns plus SSM
W ....................................................................................... 35,000 20,983.21 0 35,000 X ........................................................................................ 42,000 25,179.86 0 .82 7,560 Y ........................................................................................ 33,500 20,083.93 0 33,500 Z ........................................................................................ 7,500 8,576.33 0 7,500
RIWH ........................ .......................... QZRI 18,705 .83 ........................ .......................... 20,890
(f) The public authority next decides to use
traffic channelization devices at W Street.
Table 8 shows that the Quiet Zone Risk
Index is now reduced to 14,327.5. This risk re-
duction fully compensates for the loss of the
train horn as it is less than the Risk Index
with Horns. The quiet zone is qualified under
the rule.
TABLE 8
Street Crossing risk index w/o horns
Crossing risk index w/ horns
SSM EFF
Crossing risk index w/o horns plus SSM
W ........................................................................................... 35000 20983.21 0.75 8750 X ............................................................................................ 42000 25179.86 0.82 7560 Y ............................................................................................ 33500 20083.93 0 33500 Z ............................................................................................ 7500 8576.33 0 7500
RIWH ........................ ........................ QZRI 18705.83 ........................ ........................ 14327.5
APPENDIX D TO PART 222—DETERMINING
RISK LEVELS
INTRODUCTION
The Nationwide Significant Risk Thresh-
old, the Crossing Corridor Risk Index, and
the Quiet Zone Risk Index are all measures
of collision risk at public highway-rail grade
crossings that are weighted by the severity
of the associated casualties. Each crossing
can be assigned a risk index.
(a) The Nationwide Significant Risk Thresh-
old represents the average severity weighted
collision risk for all public highway-rail
grade crossings equipped with lights and
gates nationwide where train horns are rou-
tinely sounded. FRA developed this index to
serve as a threshold of permissible risk for
quiet zones established under this rule.
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Appendix 2. Community Survey:
Questionnaire and Results
APPENDICES
Port of San Diego's Barrio Logan Nighttime Noise Survey
Date & Time Observed:
m/d/yy hh:mm
Where were you when you heard this sound? *
Lat: 32.69522 Lon: -117.14333
San Diego Unified Port District, SanGIS, Bureau of Land Management, Esri, HERE, Garmin, INCREM… Powered by Esri
North
East
South
West
Which direction does the noise seem to be coming from?
Please identify or describe the location or direction of the noise, if possible.
255
Bang
Clank
Rattle
Screech
What did it sound like?
Please describe in more detail.
255
How would you describe it?
255
Not very loud or noticeable compared to regular background noise
Easily noticeable compared to regular background noise
Very noticeable compared to regular background noise
Very loud compared to regular background noise
How loud was it?
A few Seconds
Under a minute
One to five minutes
Five to ten minutes
Longer than ten minutes
How long did it last?
Please describe in more detail.
255
Repetitive
Constant
Irregular
What was the sound pattern?
Please describe in more detail.
255
Yes
No
Have you heard this noise before?
Startled
Woke you or others in your household from sleep/Couldn't sleep
Distracted or hard to hear conversation
Other – please describe
How did the noise affect you or others?
Additional thoughts and comments?
255
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Port of San Diego's Barrio Logan Nighttime Noise Survey
Date & Time Observed:
Date/Time Count
Sep 19 Oct 3 Oct 17 Oct 31 Nov 13 Nov 27 Dec 11 Dec 25 Jan 80
1
2
3
4
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Answered: 22 Skipped: 21
Date/Time Count
Sep 19, 2019, 12:00:00 AM - Sep 20, 2019, 12:00:00 AM 1
Sep 23, 2019, 12:00:00 AM - Sep 24, 2019, 12:00:00 AM 1
Sep 24, 2019, 12:00:00 AM - Sep 25, 2019, 12:00:00 AM 2
Sep 25, 2019, 12:00:00 AM - Sep 26, 2019, 12:00:00 AM 1
Sep 26, 2019, 12:00:00 AM - Sep 27, 2019, 12:00:00 AM 4
Sep 30, 2019, 12:00:00 AM - Oct 1, 2019, 12:00:00 AM 1
Oct 1, 2019, 12:00:00 AM - Oct 2, 2019, 12:00:00 AM 1
Oct 2, 2019, 12:00:00 AM - Oct 3, 2019, 12:00:00 AM 1
Oct 3, 2019, 12:00:00 AM - Oct 4, 2019, 12:00:00 AM 2
Oct 28, 2019, 12:00:00 AM - Oct 29, 2019, 12:00:00 AM 1
Oct 31, 2019, 12:00:00 AM - Nov 1, 2019, 12:00:00 AM 1
Nov 2, 2019, 12:00:00 AM - Nov 3, 2019, 12:00:00 AM 1
Nov 5, 2019, 12:00:00 AM - Nov 6, 2019, 12:00:00 AM 1
Dec 5, 2019, 12:00:00 AM - Dec 6, 2019, 12:00:00 AM 1
Jan 1, 2020, 12:00:00 AM - Jan 2, 2020, 12:00:00 AM 1
Jan 8, 2020, 12:00:00 AM - Jan 9, 2020, 12:00:00 AM 2
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Answered: 38 Skipped: 5
Which direction does the noise seem to be coming from?
Answers Count Percentage
North 6 13.95%
East 1 2.33%
South 18 41.86%
West 13 30.23%
North
East
South
West
Please identify or describe the location or direction of the noise, if possible.
Response Count
traincoming
westNight
noises
freewaysound
loudNoise
horns
Streethomeless
people
Cars5
horn
ship
Traffic constant
low
large military
helicoptersnorth
direction
shipyardsyard.
Navy
pitched
hours
years
10
adjacent
interstate.
Industrial
gen.
noise.
port
ringing
noise...
solid
doesnt
break
Feels
end
hardtell.
boats.
semi
trucks
parking
knockedelectric
poles
flying
base
sirens
neighborhood
shooting
repetitive
living
16th apartments
Coronado
Bridge
East
imperial
Ave
gun
sounds
14th
encampments.
Occurs
starts
8PM
home
zooming
past
racing.
Lotsyoung
kids
playingstreets.
Parties
musicblasting
pretty
confident waterfront/shipyards.
ocean.
tracks.General
vicinity
30th
street.
closures.
bound
horns.
shipyard yard
South
house
arguing
motorcycles.
waterfront. I’mguessing
it’s
shipyard.
window
faces streetshomes direction.
fly
pm
weeknight.
jet
helicopter
studiedwaterfront
maritime
industries
high
beeping
similar
forklift
incessant
droning
engine
metal
clanging
loudly
intermittently
bells
Chime
like.Nasco
related
military.
heard
residence
entire
eleven
lived
here.nearby
Cesar
Chavez
park
rail
road
teack
I5
1/15/2020 Port of San Diego's Barrio Logan Nighttime Noise Survey
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Response Count
Train every AM, adjacent to the interstate. Industrial train horn, gen. noise. 1
ship horns from the port as well as traffic 1
train horns 1
Constant ringing noise... solid sound doesnt break just keeps on and on 1
Feels like the west but also very low end so hard to tell. 1
Its from boats. 1
Large semi trucks parking on the street, knocked down electric poles 1
Noises from military helicopters flying to and from the base 1
the sirens at night as well as freeway noises 1
in the neighborhood 1
shooting it's very constant think its military since it's so repetitive 1
Noises from the homeless people living along 16th Street 1
Above my apartments, to the north and west along the Coronado Bridge and the 5 freeway 1
Noises from cars and people East and west along imperial Ave 1
gun sounds at night as well as train horns 1
it comes from the freeway 1
Not certain 1
Along 14th Street, by all the homeless encampments. Occurs almost every night , starts at 8PM when I get home 1
Loud cars zooming past at night, often racing. Lots of young kids playing in the streets. Parties and night and loud music blasting 1
Train horn 1
It seems to be coming from the direction of the shipyards 1
I'm pretty confident that it is coming from the ship yard. 1
The waterfront/shipyards. The direction of the ocean. 1
Train tracks. 1
General vicinity, along 30th street. Night closures. 1
Train yard. 1
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Answered: 40 Skipped: 3
Response Count
On the 5 freeway north bound 1
Train horns. 1
Coming from the shipyard 1
Noise comes from train yard, out South West from my house 1
Cars, homeless people arguing, and motorcycles. 1
It was coming from the waterfront. 1
I’m guessing it’s coming from the shipyard. 1
My window faces west so all noises appear to come from the west 1
Traffic from streets, around homes, every direction. 1
Navy helicopters that fly until 10 pm every weeknight. Navy jet and helicopter noise also needs to be studied 1
Coming from the waterfront maritime industries Very loud high pitched beeping for hours similar to forklift sound, incessant low pi
tched droning sound sound like a very large engine, metal clanging very loudly intermittently also for hours
1
The noise is loud bells, Chime like. They seem over the years to be coming from down by Nasco shipyards or they may be relate
d to military. I have heard them at my residence for the entire eleven years I have lived here.
1
nearby the Cesar Chavez park, by the rail road teack 1
Noise from the freeway, I5 mostly 1
0
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Answered: 33 Skipped: 10
What did it sound like?
Answers Count Percentage
Bang 11 25.58%
Clank 6 13.95%
Rattle 5 11.63%
Screech 11 25.58%
Bang Clank Rattle Screech0
2
4
6
8
10
Please describe in more detail.
Response Count
Loudnoisessounds
hornscar
train
night
horn.horn
lowmetal
sound constant
noise
large
It’searly
bell
bangs
&
cars
horns.freeway
noise.
people moving
regular
inside
windows
machine
doorsmorning
pitched
5
20
end rumbleminutes
stops
briefly
starting again.
audible
evening
midnight.
chime
grandfather
clock.
couplehours.
away.
machines
sirens
military
shooting
gunsMotorcycles
racing
cars. Gen.traffic
Bounce
bldgs
infrastructure
sheet
proofing.
hum
gun
helicopters
flying
fairly
close
residences
3:30
workhours
boat
Trailer
semis
allowed
drive
residential
areas.
parked
street driving
night.
Jet
helicopter
Homeless
stuff
screams
fights
(verbal)
movement
obnoxious. toot
toot's
zooming
includingtrailers.
mechanical
surround
area
long.
you’re
living
dryer.
closed.
safetyhonks
pattern.
looked
up.
speaker
portable
speakers
sterios
Constructionbig
rig
drilling.
long
runningaffects
abilitysleep.
locamotive
trains
shift
position
park
yard
hear
house
shut.electric
motor.
humming
sound.
excessive
extremely
horn/siren
type
general
banging.
high
beeping
similar
forklift
droning
engine
heavy
banging
clanging stereoswhining
whirring
(industrial train)
a**
apartment
building
arguments
bells
chimes.
short
tune
soften
school
rung
break
time
ends.
persistnet
occurence
nights
week.
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Response Count
It's a low end rumble that goes for 20 minutes or more then stops briefly before starting again. It's audible in the early evening als
o and seems to go at least until after midnight.
1
It's a bell chime, like a grandfather clock. It happens every couple of hours. Sounds far away. 1
Loud machines 1
horns 1
sirens 1
I think its military shooting guns not sure but very loud bangs 1
Motorcycles & racing cars. 1
Gen. traffic noises, cars & horns. Bounce off bldgs, old infrastructure, sheet metal and no sound proofing. 1
Car noises, constant hum over the freeway 1
gun sounds 1
Loud helicopters flying fairly low, too close to the residences 1
the freeway can be loud at night 1
3:30 AM work hours, boat noises, horn. 1
Trailer semis are not allowed to drive by residential areas. Often parked on street and driving by at night. 1
Jet and helicopter noise. 1
Homeless people moving their stuff around and screams or fights (verbal) 1
No movement noise, just horn, loud and obnoxious. 1
Train horn. 1
Train horn. Sometimes one toot or many toot's 1
Sounds of cars zooming by, including large trailers. Car horns every once and a while 1
Regular noise. 1
Very loud mechanical sounds surround the area all night long. It’s like you’re living inside a dryer. It’s loud even with all of my win
dows closed.
1
Train horns. It's the safety horn that honks twice in a pattern. I looked it up. 1
Loud speaker noises, portable speakers and car sterios 1
Construction noises, big rig, drilling. 1
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Answered: 39 Skipped: 4
Response Count
All night long a machine is running which affects my ability to sleep. 1
Loud horns and moving locamotive noises as trains shift position and park at the yard 1
There is a constant machine noise every night that I can hear inside my house with the windows and doors shut. It sounds like a
large electric motor. It's more of a loud humming sound.
1
Train horns, excessive and extremely loud early in the morning 1
Metal noises, horn/siren type noises along with general banging. 1
Loud high pitched beeping similar to forklift sound, low pitched droning large engine sound constant, heavy metal banging and cl
anging
1
Car horns and loud car stereos 1
It’s a whining whirring noise 1
Loud horn (industrial train) 1
It's a loud a** horn. 1
Loud bangs on the doors of my apartment building, loud arguments between people outside 1
the train every morning sounds off its horn 1
Loud bells, chimes. In what seems like a short tune 1
Like a soften school bell thats rung at break time and never ends. It is a regular persistnet occurence at least 5 nights per week. 1
0
How would you describe it?
Response Count
The word cloud requires at least 20 answers to show.
1/15/2020 Port of San Diego's Barrio Logan Nighttime Noise Survey
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Answered: 16 Skipped: 27
Response Count
loud 1
Loud bells. Chime like. In what seems like a short tune. 1
The noise is a constant hum. 1
LOUD!!!!!!! 1
Mound machines grinding 1
Exactly as I did above. Sounded like banging/clanking of work happening. Siren/horn sounds were repetitive. 1
Unreasonable 1
like an extremely loud running generator or compressor 1
loud and annoying 1
accidents and loud honks 1
very loud and scary 1
It’s very loud and persistent. Every single night. Extremely disrupting 1
At 1:30 AM I would describe it as an utter nuisance! Loud, constant for hours starting around 11:00 PM. Impossible to sleep!!! 1
Loud music while I'm trying to sleep 1
Annoying and constant 1
Loud irritating horns 1
0
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Answered: 43 Skipped: 0
How loud was it?
Answers Count Percentage
Not very loud or noticeable compared to regular background noise 2 4.65%
Easily noticeable compared to regular background noise 9 20.93%
Very noticeable compared to regular background noise 11 25.58%
Very loud compared to regular background noise 21 48.84%
Not very loud ... Easily noticea... Very noticeabl... Very loud comp...0
4
8
12
16
20
How long did it last?
Answers Count Percentage
A few Seconds Under a minute One to five mi... Five to ten mi... Longer than te...0
4
8
12
16
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Answered: 43 Skipped: 0
Answers Count Percentage
A few Seconds 7 16.28%
Under a minute 5 11.63%
One to five minutes 10 23.26%
Five to ten minutes 3 6.98%
Longer than ten minutes 18 41.86%
Please describe in more detail.
Response Count
It goes on all night 1
lots of cars and conjestion 1
Helicopters, I think military, keep flying over 1
I could hear it all evening. Has been 304 weeks now. 1
Usually last for a few minutes, very erratic. Comes and goes 1
most days it happens 1
Happens all the time 1
police related 1
nighthear hours
Trainnoise
carslong
loudsoundslots
timehorn
horns
nightssecondstraffic
mins
31030
304conjestion
Helicopters
military
flying
evening.
weeksnow.
minutes
erratic.
days
police
relatedevenings
times
woken
sleep.
wee a.m.Inconsistent
blaring
minutes.
vary
greatly.worse
night.
takespeople
pass
NavalNorth
Island
air
creates
problems cities
bay.
Constant
machines
fixing
road.
date.
don’t
recall
exactly.
gun
blastsSemi
caught
lines
knocked
infrastructure
Noises
upwards
15-30
parkedlong.
Annoying!
repeatedly
boats.
lasting
row.
earplugsblock
out.
Arguments
conversations
hour
st
home
quiet.
isn’t
happening
day
it’s
noisier
due
caretc.
location
coming from.
retaining
walls
freeways
York
3-4
past
2:00230am
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Answered: 31 Skipped: 12
Response Count
All night long 1
I hear it in the evenings and that's ok but at 3 am many times it's woken me up from sleep. 1
Until the wee hours of the a.m. 1
Inconsistent horn blaring for more than 10 minutes. 1
The train horns vary greatly. Some nights far worse than others 1
It goes on for hours every night. 1
How ever long it takes for the cars and people to pass by, few Seconds 1
Naval North Island air traffic creates noise problems for all cities along the bay. 1
Constant traffic all night long 1
Loud machines fixing the road. It could have been a different date. I don’t recall exactly. 1
hear lots of train sounds and gun blasts 1
loud horn 1
Semi caught lines above and knocked down infrastructure 1
Noises last upwards of 15-30 mins while train cars are being parked 1
All night long. Annoying! 1
Happens repeatedly but only for a few seconds at s time 1
Sounds from boats. 1
These sounds have been lasting for hours, many nights in a row. I have to use earplugs to block it out. 1
Arguments and conversations usually last more than an hour 1
I only hear it st night when home is quiet. Not to say the noise isn’t happening during the day when it’s noisier due to car noise, e
tc. From my location I cannot tell where the noise is coming from.
1
there are loud why are there no retaining walls on the freeways New York has them 1
At least 3-4 hours past 2:00 AM 1
Train horns Right around 230am, last above 30 mins 1
0
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Answered: 43 Skipped: 0
What was the sound pattern?
Answers Count Percentage
Repetitive 20 46.51%
Constant 15 34.88%
Irregular 8 18.60%
Repetitive Constant Irregular0
4
8
12
16
20
Please describe in more detail.
Response Count
Revving of cars and motorcycles causing others alarms to go off. 1
nightConstant
horn RandomCars
horn. hours
loudwhirring
people
10
Revving
motorcycles
causing
alarms
off.
while.
LOUD!!!
time
repeats
honks
durations.
line
federalsafety
regulations.
Glad
safe
terrible
sleep.
policerelated
Repetitive
hornsRandomly
8-9pm.5.
secoccur
early
morning.
repeatonce.
lots
whistles
boats
cardgenerator.
Inconsistent
blaring
minutes.
driving
constantly
semis
drivestop
whining
high
pitched Humming
buzzing
work
Single
everyday.
long
sound
Construction
activity.
Train
pass
varyingsounds
above:
Repetetiveirregular!!!
homeless
bothering
residents
continue
knock
doors
windows
1/15/2020 Port of San Diego's Barrio Logan Nighttime Noise Survey
https://survey123.arcgis.com/surveys/04a080961c084e72a4b077e69fe28de6/analyze 14/20
Answered: 25 Skipped: 18
Response Count
it happens and then it goes away 1
Every once in a while. 1
LOUD!!! 1
Each time it repeats two honks of different durations. Seems like line with federal safety regulations. Glad it's safe but it's terrible
for getting sleep.
1
police related 1
Repetitive horns, 1
Randomly but mostly at night, 8-9pm. 1
About 5. sec, horn. 1
They occur at different hours in the early morning. Sometimes they repeat once. 1
lots of loud whistles from boats and card 1
Constant loud whirring like a generator. 1
Inconsistent horn blaring for more than 10 minutes. 1
Cars driving by constantly 1
Random hours semis drive by 1
Non stop whirring whining high pitched and constant 1
Humming, buzzing as if work is being done at night 1
Single horn, everyday. 1
long horn sound 1
Construction activity. 1
Train horn. 1
Random as people pass by 1
The varying sounds are all of the above: Repetetive, Constant, and irregular!!! 1
Every night, homeless people are bothering residents and continue to knock on doors and windows 1
Random 1
0
1/15/2020 Port of San Diego's Barrio Logan Nighttime Noise Survey
https://survey123.arcgis.com/surveys/04a080961c084e72a4b077e69fe28de6/analyze 15/20
Answered: 42 Skipped: 1
Have you heard this noise before?
Answers Count Percentage
Yes 40 93.02%
No 2 4.65%
Yes No0
5
10
15
20
25
30
35
40
If so, how often?
Response Count
At least a couple days a week 1
pretty offten 1
weeknight days
years
couple
nights
5
morningweeks
nightly.
night.day.
Weekendstimes
3
47
11
pretty
offten
random
times.
8PM
2am
heard
day!!!! Dailylived
longevening
early
hours.
time.
months.
regularly
recently
Fo
previously
moved area
ago
reducedyear
worse
before.
Daily.
hours
Fridays mostly.
Wed.
weekly.
sound
same.
day
4-5
month.
230am
Sporadically.
3-4 now.nights.notice
Weekends.
weekday
1/15/2020 Port of San Diego's Barrio Logan Nighttime Noise Survey
https://survey123.arcgis.com/surveys/04a080961c084e72a4b077e69fe28de6/analyze 16/20
Response Count
every week for many years 1
Very often, every night but at random times. From 8PM to about 2am 1
Every night 1
Every night through the morning 1
Have heard it for several weeks at least 1
Nightly. 1
Every day!!!! 1
Almost nightly. 5 days 1
Daily, every night 1
I have lived here 11 years and I here it all week long in the evening and early morning hours. Even though it goes on all the time. 1
Every night. 1
Most nights for a couple months. 1
regularly 1
Most recently Fo the last week or so but previously since I moved to the area 7 years ago for 5 years then it reduced for a year n
ow its worse than before.
1
Daily. 1
Every couple of hours, every day. 1
At least 3 days a week, usually on Fridays and weekends 1
Every night 1
Weekends mostly. 1
Wed., weekly. 1
Most days 1
The sound is always the same. 1
every other day 1
Not sure, maybe 4-5 times a month. 1
Every night around 230am 1
1/15/2020 Port of San Diego's Barrio Logan Nighttime Noise Survey
https://survey123.arcgis.com/surveys/04a080961c084e72a4b077e69fe28de6/analyze 17/20
Answered: 37 Skipped: 6
Response Count
very often 1
Most nights 1
Sporadically. 1
Once a week 1
every night 1
3-4 weeks now. Most nights. I don't notice it during the day. 1
often at night. 1
Weekends. 1
Most weekday nights 1
at least 4 times a week 1
0
How did the noise affect you or others?
Answers Count Percentage
Startled Woke you or ot... Distracted or ... Other – please...0
4
8
12
16
20
1/15/2020 Port of San Diego's Barrio Logan Nighttime Noise Survey
https://survey123.arcgis.com/surveys/04a080961c084e72a4b077e69fe28de6/analyze 18/20
Answered: 43 Skipped: 0
Answers Count Percentage
Startled 7 16.28%
Woke you or others in your household from sleep/Couldn't sleep 22 51.16%
Distracted or hard to hear conversation 4 9.30%
Other – please describe 10 23.26%
Answered: 10 Skipped: 33
Please describe
Response Count
No affect. 2
Used to it, comes with the community, choose to live here. 1
White noise 1
I wear earplugs now, used to the noise. 1
No affect, people complain but it's just normal background noise 1
Consistnet noise makes it harder to fall asleep 1
Not bothered, used to it. 1
It’s very distracting. Disturbs my sleep. Makes it hard to enjoy being outside on my patio. This noise should be eradicated as so
on as possible
1
The noise is constant. It's very annoying. 1
0
The word cloud requires at least 20 answers to show.
1/15/2020 Port of San Diego's Barrio Logan Nighttime Noise Survey
https://survey123.arcgis.com/surveys/04a080961c084e72a4b077e69fe28de6/analyze 19/20
Additional thoughts and comments?
Response Count
Answers translated from Spanish. 2
Rattles my home, flying way to low. Very abrupt noises catch you off guard 1
Loud noises keep family from sleeping at night. It's almost become background noises since we're becoming used to it 1
Bar next to church. 1
I'm not sure why the engineers need to toot there horns so much as the train work is taking place in the train yard. Its not like the
re is a major street crossing the tracks anywhere. Seems like an easy problem to cure. I sure wish it would go away.
1
It is appalling that this ongoing disturbance is permitted near a residential community where residents work every day and childr
en go to school. I am aware of the low achievement scores in local schools and I am also aware of the impact that sound has
1
South of imperial tends to be a lot more quiet. More gentrified so less issues going on. Where I used to live off Imperial Ave, ther
e was always something going on
1
I know there is talk of the noise pollution in Barrio Logan but it's here also. 1
It is really loud and maddening. It’s so loud that I can still hear it with all of my windows closed and the tv on. I had to put in earpl
ugs to drown it out and be able to fall asleep.
1
Semis need to respect new ordinance, should not be allowed to drive through my neighborhood 1
more patrolling 1
Very disruptive & early affects mood, cant go back to sleep. 1
See above comments. The Navy needs to be involved with all noise, safety, and traffic studies since they impact several commu
nities in San Diego.
1
worknoises loudAnswerstranslated
Spanish.
night.horns
train awarelow
impactsound
Imperial
on.noise
hear
Earplugs
fall
asleep.
backnight
sleepLiving
1
Rattles
home
flying
low.
abrupt
catch
guard
family
sleeping
background
Barchurch.
engineers
toot
taking
place
yard.
major
street
crossing
tracks
anywhere.
easy
problem
cure.
away.
appalling
ongoing
disturbance
permitted
residential
communityresidents
day
children
school.
achievement
scores
local
schoolsSouthlot
quiet.gentrified
issues
live
Avetalk
pollution
Barrio
Logan
also.maddening.
It’s
windows
closed
tv
put
drown
Semis
respect
ordinance
alloweddrive
neighborhood
patrolling
disruptive
&
earlyaffects
moodsleep.
comments.
Navy
involved
safety
traffic
studiescommunities
San
Diego.
Extremely
distracting
hard
walls
home.
end.fan
reason.
port
do?
Wake
ups
kids
deprives
older.
harder
Disrupts
family.
make
stop.
homeless
situation
Point
Coronado.Stop
pointing
brownpeople.
fair
people
heavyjobs
wokenby.
scary middle
yeararea
police
patrols.Lots
road
work.
Constant
sounds
Cars
bear
trolley
hornfreeway
sucks.
this.
messed
up.
it?
Annoying
peace
mind.
enforcement.
SDPD
recently
shut house
late
parties
door
parking
Sampson
doesnt
military
parking.
1/15/2020 Port of San Diego's Barrio Logan Nighttime Noise Survey
https://survey123.arcgis.com/surveys/04a080961c084e72a4b077e69fe28de6/analyze 20/20
Answered: 29 Skipped: 14
Response Count
Extremely distracting and hard to fall asleep. It's like it's in the walls of my home. Earplugs don't work since it's so low end. A fan
doesn't help much either for the same reason.
1
it happens every night what can the port actually do? 1
Wake ups my kids and deprives me of my sleep, especially now that I'm older. It's harder to go back to sleep 1
Disrupts family. 1
Please make this sound stop. 1
Need to do something about the homeless situation 1
Point the horns towards Coronado. Stop pointing them at brown people. 1
Its not fair to the people here that have to work through the night or work heavy jobs and get woken up by. 1
Very scary to hear in the middle of the night. Only been living here for about 1 year but this area needs more police patrols. 1
Lots of road work. Constant sounds of Cars can even bear the trolley horn Living by the freeway sucks. 1
Please do something about this. 1
This is messed up. 1
What is it? 1
Annoying, can't keep peace of mind. Need more enforcement. SDPD recently shut down a house known for late parties next doo
r
1
there is no parking on Sampson doesnt the military have their own parking. 1
0
Appendix 3. Noise Monitoring Results
APPENDICES
45
50
55
60
65
70
75
80
12:00AM
6:00AM
12:00PM
6:00PM
12:00AM
6:00AM
12:00PM
6:00PM
12:00AM
6:00AM
12:00PM
6:00PM
12:00AM
6:00AM
12:00PM
6:00PM
12:00AM
6:00AM
12:00PM
6:00PM
12:00AM
6:00AM
12:00PM
6:00PM
12:00AM
6:00AM
12:00PM
6:00PM
12:00AM
dBA
Time
Barrio Logan Noise ‐ 10/25/19 to 10/31/19 ‐ Hourly Intervals
A B C D E F G
Saturday Tuesday Wednesday ThursdaySundayFriday Monday
45
50
55
60
65
70
75
80
10:00 PM 11:00 PM 12:00 AM 1:00 AM 2:00 AM 3:00 AM 4:00 AM 5:00 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise - 10/25/19 to 10/31/19 - Hourly Intervals
A-Thursday B-Thursday C-Thursday D-Thursday E-Thursday F-Thursday G-ThursdayA-Friday B-Friday C-Friday D-Friday E-Friday F-Friday G-FridayA-Saturday B-Saturday C-Saturday D-Saturday E-Saturday F-Saturday G-SaturdayA-Sunday B-Sunday C-Sunday D-Sunday E-Sunday F-Sunday G-SundayA-Monday B-Monday C-Monday D-Monday E-Monday F-Monday G-MondayA-Tuesday B-Tuesday C-Tuesday D-Tuesday E-Tuesday F-Tuesday G-TuesdayA-Wednesday B-Wednesday C-Wednesday D-Wednesday E-Wednesday F-Wednesday G-WednesdayA-Thurs 10/31 B-Thurs 10/31 C-Thurs 10/31 D-Thurs 10/31 E-Thurs 10/31 F-Thurs 10/31 G-Thurs 10/31
45
50
55
60
65
70
75
80
dBA
Barrio Logan Nighttime Noise ‐ 11/11/19 to 11/17/19 ‐ Hourly Intervals
A B C D E F H
SaturdayTuesday Wednesday ThursdaySunday FridayMonday
57.6
69.368.5
56.8
61.4
67.0
55.2
57.9
55.3
62.2
59.9
64.2
53.3
50.2
54.0
49.850.5
51.8
65.8
69.3
65.5 65.6
68.8
73.0
58.0
53.9
56.9 56.7
60.0
62.6
68.1 67.8
75.4
67.1
71.8
73.3
56.8
54.9
58.259.0
60.8
61.962.4
60.3
50.8
62.3 62.4
65.8
61.0
57.9
54.0
58.5
63.1
65.3
54.5
48.9
47.4
49.4
52.2
55.1
65.6
69.6
64.0
68.3
71.3
73.9
61.1
56.556.1
57.2
60.6
61.7
65.4
74.0
64.1
71.570.8
73.8
59.1
55.0
53.6
60.7
61.6 61.4
57.2
55.055.7
53.7
63.7
65.4
55.1
56.8 56.6
55.7
61.7
65.2
49.448.7
47.9
49.4
53.5
56.0
65.7
62.2
64.6
66.7
70.4
74.1
55.855.1
56.0
59.2 59.2
61.3
65.8
62.6
71.5
68.6
70.7
73.3
56.0
58.6
54.8
60.6
61.8 62.1
59.3
58.1
52.8
55.3
67.666.8
60.0
58.0 58.158.6
61.0
66.9
54.7
53.2
48.6
46.9
51.0
55.0
64.8
66.4
64.1
66.5
71.0
74.3
57.156.8
55.8
57.6
62.8
60.8
65.8 65.7
66.9
73.7
70.7
74.4
58.6
57.1 56.9
59.9
62.463.2
58.3
60.0
64.4
56.7
62.5
66.7
58.5
59.5
56.2
57.7
60.4
65.6
50.9
48.6
50.2 50.3
54.7
56.2
65.6
69.5
67.3
66.0
70.1
74.0
55.5
56.757.1
58.4
59.5
61.0
77.9
70.8
74.5
68.2
71.5
73.1
58.6
57.558.2
60.9
62.5 62.7
58.3
55.5
57.0
59.4
60.7
62.9
57.5
59.1
57.1
59.8
57.6
62.3
50.4
48.8 49.1
47.5
48.7
51.7
67.6
66.7
68.167.6
70.0
74.6
52.953.6
53.1
54.8
58.759.1
66.0
64.1
66.4 66.7
69.0
70.6
58.0
56.0 55.856.5
58.2
60.160.1
59.058.3
56.5
59.4
61.8
60.6
59.358.7
61.2
59.4
63.1
51.3
54.4
55.7
58.158.5
60.1
67.8 68.0
67.1
65.6
66.7
68.7
55.656.0
58.2
59.1
60.4
61.7
65.664.9
64.5
65.6
67.1
68.8
59.0
58.1
59.2 59.1
61.4
62.2
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/11/19 to 11/17/19 ‐ Hourly Intervals
Location C
LocationsD, F and A
LocationsB, E and H
57.6
69.368.5
56.8
61.4
67.0
55.2
57.9
55.3
62.2
59.9
64.2
53.3
50.2
54.0
49.850.5
51.8
65.8
69.3
65.5 65.6
68.8
73.0
58.0
53.9
56.9 56.7
60.0
62.6
68.1 67.8
75.4
67.1
71.8
73.3
56.8
54.9
58.259.0
60.861.9
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/11/19 Monday
A B C D E F H
62.4
60.3
50.8
62.3 62.4
65.8
61.0
57.9
54.0
58.5
63.1
65.3
54.5
48.9
47.4
49.4
52.2
55.1
65.6
69.6
64.0
68.3
71.3
73.9
61.1
56.5 56.157.2
60.6
61.7
65.4
74.0
64.1
71.570.8
73.8
59.1
55.0
53.6
60.761.6 61.4
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/12/19 Tuesday
A B C D E F H
57.2
55.055.7
53.7
63.7
65.4
55.1
56.8 56.655.7
61.7
65.2
49.448.7
47.9
49.4
53.5
56.0
65.7
62.2
64.6
66.7
70.4
74.1
55.855.1
56.0
59.2 59.2
61.3
65.8
62.6
71.5
68.6
70.7
73.3
56.0
58.6
54.8
60.6
61.8 62.1
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/13/19 Wednesday
A B C D E F H
59.3
58.1
52.8
55.3
67.666.8
60.0
58.0 58.1 58.6
61.0
66.9
54.7
53.2
48.6
46.9
51.0
55.0
64.8
66.4
64.1
66.5
71.0
74.3
57.1 56.855.8
57.6
62.8
60.8
65.8 65.7
66.9
73.7
70.7
74.4
58.6
57.1 56.9
59.9
62.463.2
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/14/19 Thursday
A B C D E F H
58.3
60.0
64.4
56.7
62.5
66.7
58.559.5
56.2
57.7
60.4
65.6
50.9
48.6
50.2 50.3
54.7
56.2
65.6
69.5
67.3
66.0
70.1
74.0
55.5
56.757.1
58.459.5
61.0
77.9
70.8
74.5
68.2
71.5
73.1
58.6
57.558.2
60.9
62.5 62.7
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/15/19 Friday
A B C D E F H
58.3
55.5
57.0
59.4
60.7
62.9
57.5
59.1
57.1
59.8
57.6
62.3
50.4
48.8 49.1
47.5
48.7
51.7
67.666.7
68.167.6
70.0
74.6
52.953.6
53.1
54.8
58.7 59.1
66.0
64.1
66.4 66.7
69.0
70.6
58.0
56.0 55.856.5
58.2
60.1
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/16/19 Saturday
A B C D E F H
60.159.0
58.3
56.5
59.4
61.8
60.6
59.358.7
61.2
59.4
63.1
51.3
54.4
55.7
58.1 58.5
60.1
67.8 68.067.1
65.666.7
68.7
55.6 56.0
58.259.1
60.4
61.7
65.664.9 64.5
65.6
67.1
68.8
59.058.1
59.2 59.1
61.462.2
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/17/19 Sunday
A B C D E F H
45
50
55
60
65
70
75
80
dBA
Barrio Logan Nighttime Noise ‐ 11/18/19 to 11/24/19 ‐ Hourly Intervals
A B C D E F H
SaturdayTuesday Wednesday ThursdaySunday FridayMonday
60.8
58.2 58.3
59.1
65.5
67.9
59.3
58.5 58.4
59.3
62.0
67.8
56.8
54.3 54.5
50.8
52.0
58.2
65.265.9
63.2
65.4
69.5
73.8
59.9
54.7
56.8
57.9
59.8
65.3
64.563.7
64.1
68.6
74.474.8
59.7
57.4 57.3
61.3
62.9
64.6
63.4
69.2
56.2
68.7
64.6
67.5
59.9
61.2
57.5
60.7
61.8
67.1
58.3
55.3
53.1
57.556.8
59.4
66.3
67.4
63.1
68.969.5
73.4
60.960.2
57.2
60.459.8
62.0
68.2
71.9
69.7
70.771.2
72.3
59.0
57.857.4
61.4
63.162.5
71.3
67.8
64.8
61.2
65.5
67.1
56.957.2 57.2
57.8
60.8
65.1
57.957.3 57.2 57.2
59.5
61.1
66.0
68.3
66.3 66.5
69.8
72.9
61.4
62.7
60.360.7
61.3
63.3
70.270.5
68.4
70.7
77.1
72.7
60.3
62.6
60.9
62.361.6 61.9
62.7
68.5
60.4
66.2 66.166.9
65.9
58.1
59.0
60.2
62.0
66.3
63.0
49.0
55.0
52.2
56.2
54.6
67.0
66.1
67.967.1
69.8
74.3
61.7
56.0
58.1 58.3
59.4
61.5
67.666.9
70.4
69.5
73.673.1
60.6
56.2
58.8
61.4
63.163.9
59.5
67.5
65.2
58.7
63.7
67.7
58.657.9 57.9 57.9
59.6
65.9
53.3
50.3 50.2
48.6
51.4
53.0
72.3
69.4
70.7
64.9
70.2
73.5
55.5
56.757.1
58.4
59.5
61.0
71.3
76.3
70.069.6
70.4
77.0
59.3
58.2
59.4
61.562.2
62.8
61.2
59.2 59.4
56.4
61.3
65.4
59.3
60.661.4
59.0
65.8
63.5
53.7
55.3
58.0 58.1 58.057.2
67.6
66.7
68.167.6
70.0
74.6
52.953.6
53.1
54.8
58.759.1
67.9
66.4
73.5
67.3
69.8
72.3
61.1
58.7 58.457.9
61.561.8
61.260.4
56.355.6
58.7
63.0
59.059.6
56.5
68.0
59.7
62.4
53.2
50.6
52.1
49.7
53.0
55.0
69.2
68.367.8
65.7
66.9
68.7
56.956.3
59.059.5
60.861.4
65.3
64.363.5
65.1
67.2
69.1
58.658.1
57.7 58.058.7
59.8
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/18/19 to 11/24/19 ‐ Hourly Intervals
Location C
LocationsD and F
LocationsA, B, E and H
60.8
58.2 58.359.1
65.5
67.9
59.358.5 58.4
59.3
62.0
67.8
56.8
54.3 54.5
50.8
52.0
58.2
65.265.9
63.2
65.4
69.5
73.8
59.9
54.7
56.857.9
59.8
65.364.5
63.7 64.1
68.6
74.4 74.8
59.7
57.4 57.3
61.3
62.9
64.6
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/18/19 Monday
A B C D E F H
63.4
69.2
56.2
68.7
64.6
67.5
59.9
61.2
57.5
60.7
61.8
67.1
58.3
55.3
53.1
57.556.8
59.4
66.367.4
63.1
68.969.5
73.4
60.960.2
57.2
60.459.8
62.0
68.2
71.9
69.770.7 71.2
72.3
59.0
57.8 57.4
61.4
63.162.5
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/19/19 Tuesday
A B C D E F H
71.3
67.8
64.8
61.2
65.5
67.1
56.9 57.2 57.257.8
60.8
65.1
57.957.3 57.2 57.2
59.5
61.1
66.0
68.3
66.3 66.5
69.8
72.9
61.4
62.7
60.3 60.761.3
63.3
70.2 70.5
68.4
70.7
77.1
72.7
60.3
62.6
60.9
62.361.6 61.9
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/20/19 Wednesday
A B C D E F H
62.7
68.5
60.4
66.2 66.166.9
65.9
58.159.0
60.2
62.0
66.3
63.0
49.0
55.0
52.2
56.2
54.6
67.066.1
67.967.1
69.8
74.3
61.7
56.0
58.1 58.359.4
61.5
67.666.9
70.469.5
73.673.1
60.6
56.2
58.8
61.4
63.163.9
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/21/19 Thursday
A B C D E F H
59.5
67.5
65.2
58.7
63.7
67.7
58.657.9 57.9 57.9
59.6
65.9
53.3
50.3 50.2
48.6
51.4
53.0
72.3
69.4
70.7
64.9
70.2
73.5
55.5
56.757.1
58.459.5
61.0
71.3
76.3
70.0 69.670.4
77.0
59.358.2
59.4
61.562.2
62.8
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/22/19 Friday
A B C D E F H
61.2
59.2 59.4
56.4
61.3
65.4
59.3
60.661.4
59.0
65.8
63.5
53.7
55.3
58.0 58.1 58.057.2
67.666.7
68.167.6
70.0
74.6
52.953.6
53.1
54.8
58.7 59.1
67.9
66.4
73.5
67.3
69.8
72.3
61.1
58.7 58.457.9
61.5 61.8
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/23/19 Saturday
A B C D E F H
61.260.4
56.355.6
58.7
63.0
59.059.6
56.5
68.0
59.7
62.4
53.2
50.6
52.1
49.7
53.0
55.0
69.268.3
67.8
65.7
66.9
68.7
56.956.3
59.059.5
60.861.4
65.364.3
63.5
65.1
67.2
69.1
58.658.1 57.7 58.0
58.759.8
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/24/19 Sunday
A B C D E F H
60.9
69.5
63.9
58.1
65.5
67.067.9 67.8
65.564.4 64.3
64.8
63.5
64.865.6 65.7
64.5
66.5
63.163.8
63.262.6
63.162.162.0
60.2 60.1
58.1
61.7
64.3 64.4 64.564.1 63.7 63.8
64.5 64.2 64.3
65.765.0 64.9
64.363.8 63.4
62.9
64.8
62.761.661.6
59.1
57.858.9 59.1
60.7
62.062.6
62.2
63.363.8 64.0 64.2
63.5 63.7 63.664.4
63.3
65.6
63.2 63.262.4
60.0 59.758.8
55.955.0
55.8
64.9
67.366.7
66.265.4
63.7
65.264.5 64.5 64.4
66.3 66.366.9
66.265.4
64.5
63.2
62.0
60.8
64.0
62.2
65.6 65.8
59.4
63.5
66.8 67.1 67.0
65.4
63.264.1
64.6 64.2
66.565.7
71.6
66.866.1
64.3
61.861.1
59.9 60.0 59.9
65.0
67.3
61.2
57.5
65.366.3 66.4
65.764.9
64.064.5
63.063.5
64.365.3 65.2 65.0
64.1
61.5
62.6 62.3 62.6
59.360.2
58.2
66.3
62.3
56.1
63.5
66.5 66.966.1 65.7
64.263.2
62.6
64.6
63.5
64.8
66.8
65.7 65.6
63.8 64.063.2
62.7 62.9 63.3
12:00 AM
1:00 AM
2:00 AM
3:00 AM
4:00 AM
5:00 AM
6:00 AM
7:00 AM
8:00 AM
9:00 AM
10:00 AM
11:00 AM
12:00 PM
1:00 PM
2:00 PM
3:00 PM
4:00 PM
5:00 PM
6:00 PM
7:00 PM
8:00 PM
9:00 PM
10:00 PM
11:00 PM
dBA
Time
Barrio Logan Noise ‐ 10/25/19 to 10/31/19 ‐ Hourly Intervals
A‐Fri 10/25 A‐Sat 10/26 A‐Sun 10/27 A‐Mon 10/28 A‐Tue 10/29 A‐Wed 10/30 A‐Thurs 10/31
Location A: Main and Beardsley
60.9
69.5
63.9
58.1
65.5
67.0
62.0
60.2 60.1
58.1
61.7
64.3
61.6
59.1
57.858.9 59.1
60.7
58.8
55.955.0
55.8
64.9
67.3
62.2
65.6 65.8
59.4
63.5
66.8
65.0
67.3
61.2
57.5
65.366.3
58.2
66.3
62.3
56.1
63.5
66.5
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐ Hourly Intervals
A‐Fri 10/25 A‐Sat 10/26 A‐Sun 10/27 A‐Mon 10/28 A‐Tue 10/29 A‐Wed 10/30 A‐Thurs 10/31
Location A: Main and Beardsley
56.5
55.1
56.3
61.1
68.4
58.9
62.1
56.156.356.5
63.6
57.157.1
61.9
56.8
59.5
54.3
56.2
68.2
55.6
53.754
55.6
54.454.954.555.3
64.5
67.9
59
61.7
56.5
58.157.6
59.9
71
55.5
59
56.657.156.756.8
55.256.3
54.954.454.755.4
56.6
54.4
55.6
53.453.8
5655.8
58.659.5
69.3
58.5
56.956.8
86.7
73.8
65.4
56.1
5455.1
57.5
56.1
58
55.8
57.4
55.45656.155.455.955.95757.3
59
54.354.154.5
55.855.555.855.8
60.8
69.9
58.5
60.8
58.5
57.257.758.4
55.656.7
61
545453.654.2
52.1
53.3
56.6
58.457.5
54.9
52.852.852.8
54
55.454.555.354.5
51.451.3
54.3
50.150.451.5
5958.5
54.3
5352.552.652.5
54
52.152.752.6
50.1
52.3
5152.1
50.351.3
53.1
58.2
50.350.351.351.352.251.951.6
56.557.1
59.8
53.6
56.3
59.5
67.2
80
70.6
65.865.566.365.3
52.4
53.654.354.6
58.4
55.955.856.9
60.9
57.3
53.1
56.455.5
57.3
55.9
53.252.95253.153.953.654.3
56.2
54.8
60
54.1
56.6
52.753.454.1
52.6
55.1
53.4
50.9
56
53.754.6
63.363.9
67.3
56.757
55.855.955.856.755.955
61.5
52.9
55.2
58.457.5
54.5
57.358.457.5
54.855.454.653.8
56.1
57.556.9
55.6
58.959.2
56.1
57.356.356.156.3
62.4
57.1
63.4
57.3
63
59.9
56.3
58.4
68.5
60.3
56.7
67.9
65
67.1
64.3
57.357.9
60.6
58.5
56.1
57.8
69.2
65.967
64.9
68.667.9
62.6
57.857.6
68.5
63.7
61.362.3
67.6
62.8
68.6
61.460.5
59.359.9
65.764.964.8
68.4
65.8
60.6
69
62.2
63.563.162.6
60.1
64.9
67.867.867.768.4
63
71.2
66.6
68.5
63
61.2
69.8
67.5
63.6
69.7
68.2
62.661.8
65.4
61.662
64.2
65.5
70.4
65.6
63.9
66.6
68.8
66.3
63.8
68.5
65.165.2
69.2
65.465
69.3
62.962.3
60.4
67.266.266.7
62.362.6
64.4
67.9
63.9
65.9
7372
63.364.2
67.9
64.3
72.4
69
66.7
63
69
64.6
66.7
64.2
66.1
68.5
66.266
69.368.5
63.664.6
68.3
69.6
71.1
67.5
65.8
59.15958.859.460.1
68.267.8
60.7
59.1
61.1
57.657.5
58.9
57.457.8
59.7
66.365.8
58.358.258.7
56.2
58.159
56.7
57.9
65.466.4
58.257.556.4
58.5
61.7
60.259.358.8
66.7
68.6
57.157.156.156.6
58.457.657.756.957.1
58.8
6059.3
57.2
60.9
58.8
56.356.1
65.2
68.3
55.654.855.255.255.6
66
60.4
54.9
57.2
55.155.6
58.2
56.9
5555.4
56.755.956.857.356.256.8
55.5
58.5
67.6
55.1
57.956.8
58.858
64.5
68.1
57.6
63
56.3
57.656.556.9
58.257.6575858.6
56.7
65
58.2
55.854.9
56.456.9
58.3
55.454.854.1
55.9
66.9
69.3
58.958.4
55.3
58.658.2
55.555.255.3
57.8
59.7
5453.7
56.7
55.555.6
53.6
55.4
54.154.1
52.9
5554.7
59
54.5
56.1
59.5
55.4
68.8
66.5
72.9
68.7
55.9
57.1
58.3
54.9
56.755.95656.3
54.7
56.4
58
54.254.454.5
56.9
58.7
54.554.455.355.756.5
58.1
56.756.655.55656.556.756.256.5
55.355.855.555.956.5
5556.155.355.155.6
61.5
56.455.856.1
57.9
55.5
53.65454.854.754.153.453.65453.7
54.2
52.7
57.1
54.154.8
56.9
55.154.453.9
56.6
54.5
63.2
61.3
64.2
67.667
55.754.755.1
57.8
55.454.9
5755.956.6
54.9
56.9
59.8
56.555.55554.654.855.856
54.7
59.259.6
55.355.2
56.655.5
57.1
55.3
5453.853.3
55.9
53.754.8
56.355.9
54.5
60
56.9
63.5
69.2
55.154.6
56
54.6
58.3
62.5
57
72.2
55.9
59.9
55.956.255.2
68.7
64.1
56.4
58.4
56.3
58.458.1
60.561.1
59.759.159.9
55.9
6362.4
60.559.7
69.1
64.1
58.7
63.7
56.7
58.6
57.3
60
56.8
62.4
67.3
57
65.6
63.9
67.5
56.655.956.5
71.5
59
57.558.5
66.2
58.457.857.556.9
59.75959
64.4
69
64.9
58.858.157.157.858.5
61.260.359.6
66.2
70.9
68.6
65.1
58.959.1
61.1
5857.4
59.158.8
64.564.6
66.1
71.2
62.4
60.5
64.9
69.2
62.5
70.9
63.863.3
60.5
58.4
62
58
59.8
65.5
68.2
60.961.7
67.5
60.7
56.4
58.658.5
60.4
66.5
60.260.9
63.1
67.4
59.259.759.9
6261.2
55.2
56.8
58.1
56.3
57.858.1
60.3
57.758.2
70.7
58.1
62.4
57.5
6766.3
57.9
60.259.4
54.7
59.7
56.3
60.7
57.357.558.4
56.6
58.3
55.455.7
58.4
55.6
57.456.5
60.9
54.6
53.3
56.9
60.1
55.6
53.4
62.5
61.2
64.9
68.1
55.756.4
61
55
59
53.9
55.4
54
52.7
58.3
60.1
58.7
51.6
61.2
55
56.5
54.6
57.6
54.4
52
58.6
54.6
66.7
58.6
56.857.356.857.7
59.7
65.6
67.1
58.9
61.5
56.9
58.6
57.4
54.2
57.257.9
56.155.2
53.6
65
56.4
57.657.2
55.4
58.5
53.8
58.4
54.5
61.8
58.3
54.7
58.2
60
57.7
60.5
55.2
58.3
53.853.4
57.3
5959.7
5554.6
61.7
58.1
59.6
57.2
59.459.5
56.657.5
60.4
56.7
59.8
62.2
56.255.255.7
60.2
56.5
59.9
62.6
53.8
57.1
59
53.7
56.8
58.3
56.9
61.1
52.6
57.157.156.1
61.1
54.755.3
61
56.7
55.456.1
54.154.4
57.756.8
54.254.7
52.4
54.454.1
57.5
60.2
53.2
56.5
53.2
57.4
54.6
53.3
55.655.5
53.3
58.3
53.553.9
52.6
56.2
54.6
51.8
55.655.9
61.8
58.6
54.25454.854.453.553.8
55.2
53.1
55.2
52.9
54.353.3
54.5
59.3
53.6
56.3
74.1
57.7
53.153.1
60.1
52.6
59.7
52.252.652.5
57.2
52.553.2
58.1
54.5
55.8
52.2
56.155.9
52.5
54.2
52.252.652.753
54.7
56.3
52.3
56.7
5353.152
54.8
51.7
55
53.1
54.3
58.1
52.252.4
55.4
53.753.253.1
54.7
53.2
54.655.556.2
54.153.953.6
58.5
55.455.4
70.3
61.2
66.5
56.7
54.4
62.5
69
56.5
57.758.2
5454
64.8
57.856.95656.655.956.8
52.2
55
58.9
56.7
58.3
5353.953
62.8
55
53.8
52.3
55
52.7
54.5
55.7
57.3
69.7
53
59.4
54
52.1
61.8
54.555.654.654.5
56.7
52.8
54.354.354.7
56.455.9
53.1
60.2
56.3
54.854.153.6
57.5
62.1
68.8
55
53.6
55
61.3
67.5
55.455.6
54.4
58
55.554.955
56.756.9
68.1
59.458.5
54.5
57.858.3
53.2
58
63.5
55.856.7
60.6
62
63.363.5
68.8
59.8
56.9
52.2
53.9
60.4
56.6
67.5
52.352.552.251.951.2
52.453.252.951.852.352.351.6
55.5
53.4
51.8
53.252.5
53.8
56.4
52.753.5
52
53.2
62.8
66.6
52.852.6
51.3
55.5
51.151.251.4
61.7
53.753.4
51.4525250.9
52.5
51.151.8
63.9
67.7
52.351.2
57.5
55.856.957.9
55.2
52.3
62.3
69.6
57.4
53.953.3
52
57.5
51.951.752.152.2
55.9
57.556.6
5351.9
50.150.550.449.950.651.651.4
54.753.652.653
56.5
59.1
53.253.652.9
62.2
68.2
55.556.357.156.455.3
53.954.454.555.2
53.954.354.1
55.3
53.753.252.253.3
56.4
51.7
53.15252.252.352.2
54.9
53.652.952.1
54.2
55.7
53.3
51.851.8
53.1
55
53.2
52
54.1
52.952.953.2
52
50.851.451.3
53
58.4
51.351.450.9
52.7
55.2
52.953.7
56.2
51.7
59.9
53.1
61.8
60.5
55.1
61.8
55
57.1
52.9
54.9
56.7
53.9
57.1
54
51.9
53.5
49.8
56.1
50.850.8
53.4
58.1
51.1
55.8
53.4
51.7
55.8
52.151.252
57
51.351.6
52.852.352.953.6
51.951.4
55.6
5353.6
62.2
5251.9
53.954
52.3
54.153.95453.7
55.2
53.453.7
55.1
5352.552.652.4
51.2
53.1
51.7
54.5
52
54.454.854.1
52.9
50.5
54.3
56.3
60.3
53.2
58.7
52.3
54.7
51.852.4
55.555.2
52.9
57
52.753.152.2
54.4
56.5
67.5
55.9
53.752.8
59.5
69.4
60.759.9
69
56.9
54
63.2
67.2
56.8
52.853.552.7
69
59.9
56.5
53.9
55.1
58.457.9
62.6
66.1
63.8
66.3
60.5
62
67.8
56.9
61.7
59.1
54.755.8
58.6
56.9
6666.9
59.9
57.2
58.4
60.2
65.3
68.6
64.964
57
60.9
59.6
55.6
66.465.765.6
64.1
69.4
59.8
61.3
63.7
68.4
72.5
62.6
74.3
68.2
58.6
63.7
68.3
59.4
67.6
64.5
66.867.4
65.6
77
62.7
68.9
63.7
69.1
62.962.8
67.3
65.4
63.9
61.6
65.365.866.4
68.5
72.2
60.5
62.1
65.566.3
63.5636362.8
65.7
61.6
69.1
74.9
67.4
64
67.8
65
61.7
70.4
62.2
64.4
66.3
70.469.8
63.764.3
66.165.7
66.966.6
68.5
65.9
61.561.9
67.5
65.6
62.8
54.9
62.8
70.269.1
58.6
61.7
55.4
59.2
54.653.7
52.1
54.253.2
51.7
54.453.654.3
57.5
55.1
51.951.1
53.4
54.7
56.1
52.852
56.7
51.8
76.1
52.6
56.9
65.5
68.9
56.6
59.7
52.152.451.952
54.7
52.452.65352.752.553.253.254.2
59.1
52.8
54.253.152.5
50.950.850.8
54.9
52
69.5
63.5
82.7
67.6
56.1
52.952.3
60.4
51.8
55.4
53.552.8
5454.353.352.553.252.452.853.5
55.8
53.953.653.353.3
55.7
52.651.752.2
51
52.6
69.6
61.7
56.3
52.7
59.9
55.3
52.5
54.55454.153.754.353.853.653.6
56.7
58.3
55.2
56.5
54
52.452.552.651.552.4
60.8
58.4
52.552.352.352.853.5
55.3
52.553.5
60.1
54.6
5251.752.452.253.252.3
56.1
52.653.252.753.453.753.5
60
55.1
52.153.253.152.35354.1
69.1
57.6
62.3
54.2
82.4
70.5
65.5
66.9
64.563.8
52.952.8
59.1
54.653.553.6
54.8
56.7
53.2
55.8
53.954.95554.453.6
57.6
58.8
64.6
54.7
55.956.7
54
52.852.1
55.2
51.551.351.952.9
50.9
52.3
53.6
50.851.1
53.953.552.451.6
52.9
57.8
59.3
53.853
51.8
53.252.753.653.353.453.753.6
57.6
52.5
67.5
51.650.8
61.7
52.7
59.3
68.6
58
53.3
55.554.554.7
56
58.7
55.956.7
54.6
57.2
55
53.753.9
56.156.6
55.255.5
61.5
68.4
55.4
68.468.4
53.9
56.455.7
62.1
58.6
63.9
67
55
61.5
5656.7
60
55.1
67.5
63.4
64.9
66.3
62.8
68.7
56.3
59.258.558.6
59.9
55.8
67.9
61.3
58.1
55.7
58.757.7
65.1
67
60.259.2
62.9
61
59.659.7
61.9
66.267.1
58.457.6
62.6
58.4
67
69.2
63.9
62.4
68.3
62.7
60.6
63.163.1
68.7
70.1
59.960.761.7
68.668.7
63.1
69.1
63.9
65.2
69
64.663.564.6
61.7
67.9
6665.9
68.7
64.5
67.868
64.2
66.366.4
67.9
64.3
67.6
68.9
62.762.363
65.6
68.7
64.864.5
68.9
64.5
62.3
63.9
66.867.6
63.9
68.4
66.9
64.2
68.569.4
72.4
64
66.767.2
62.6
65.965.366.4
68.7
63.7
66.367.366.5
68.2
69.8
63.6
65.2
52.753.3
55.3
67.3
59.4
52.551.852
55.9
52.851.852
50.651.5
53.3
51.251.951.6
54
57.5
49.550.451
49.750.250
60.6
68.2
52.8
50.7
57.558.1
54.5
52.652.7
56.9
54.2
6564.463.9
58.2
56.2
52.9
59.2
66.6
53.1
51.2
52.7
60.2
52.9
54.2
51.1
52.8
62.6
64.2
59.8
63.2
61.7
67.1
81.3
84.7
57.1
59.459.7
54.9
68
57.8
50.350.8
49.650.1
52.153.2
51.5
58.7
51.5
53.2
54.4
52.152.2
49
52.252.55253
49.1
50.4
52.251.1
57.3
68.6
52.4
59.8
51.7
53.4
50.650.751
56.4
50.2505050.4
52.9
5756.1
51.3
49.749.649.849.749.7
50.950.550.8
57.3
60.3
49.248.7
59.9
50.851.3
60.5
51.9
55.5
49.148.9
50.450.349.550.649.549.1
50.5
57.4
51.2
52.7
50.8
52.253.3
50.6
54.7
50.1
51.5
49.449.6
56.6
52.9
51.352
53.5
62
77.6
65.465
62.6
60.8
53.1
49.149.248.8
56.957.3
50.550.349.548.8
51.7
54.5
51
49.249.849.2
56.2
54.8
50.8
55.9
52.6
5050.3
61.1
62.7
64.763.963
66.3
63.3
55.4
59.5
50.8
55.7
50.4
58.1
53
51.851.851.751.5
53.6
50.750.2
55.5
51.1
53.4
51.451.5
56.4
54
50.5
54.8
57.6
55.9
52.452.6
56.156.3
51.252.2
55.9
52.4
59.6
56.355.8
53.6
60.3
56.5
54.5
51.8
56.8
55.15453.6
60.6
53.2
56.3
53.152.253
65.3
62.963.5
65.2
55.455
61.5
66.8
51.552
50.5
53.3
56.4
52.1
59.7
66.3
54.4
59.2
67.1
69.6
65.4
54.754.1
57.9
52.9
61.6
66.8
55.7
60.6
57.7
63.4
61.2
66.9
55.9
77.9
59.358.2
61.6
59.6
66.8
61.2
64.2
67.6
62.6
59.5
63.7
68.4
61.3
59.5
65.365.9
71.5
67.3
62.5
66.3
63.962.8
64.3
57.5
63.7
68.9
61.6
62.9
68.368.7
60.2
66.26767.1
60.7
59.1
62.5
67.6
66.165
67.867.1
65.865.2
68.4
62.4
66.1
67.6
60.7
65.4
68.8
63.7
71
65.966.966.7
63.4
65.7
66.9
61.2
62.6
59.9
61.9
65
67.266.8
64.3
63.1
65.3
67.5
69.9
67.6
63.2
67.6
60.7
65.6
6767
73.8
65.566.3
62.161.3
62.761.9
64.5
67.667.4
54.355.354.454.855.9
61.3
55.1
53.2
56
59.7
55.556
59.7
67.2
54.453.453.9
55.5
58.9
63.1
60.4
64.1
60.1
57.3
55.4
53.55454
62.2
65.4
58.7
60.8
57.3
58.8
54.754.8
5756.257.1
58.8
54.954.9
57.4
53.7
55.6
52.6
55.15454.7
52.952.6
54.5
57.7
54.854.254.454.153.9
57.658.1
54.453.6
57.8
67.1
61.8
80.980
64
57.1
54.154
52.251.451.351.8
56.5
53.554.354.353.754.254.154.355.254.15453.754.653.653.7
55.1
58.8
55.955.5
58.7
67.5
61.7
54.154.2
56.3
53.5
54.854.5
52.8
54.7
5656.4
52.4
54.253.2
58.3
53.95554
52.7
57.2
53.253.153.253.454.1
52.2
60
56.6
51.251.151.250.649.6
51.3
54.5
50.450.4
48.9
50.4
51.7
48.6
54.8
49.650.150.150
54.3
52
50.6505050.6
48.9
50.6
55.2
49.8
51.351.9
58.9
61.7
79
66.165.1
60.160
51.451.5
55.254.4
52.6
57.6
55.3
52.2
54
56.2
52.953.9
55.2
57.2
53.653.753.4
52.251.851.9
56.1
53.252.451.7
54
51.65251
55.3
51.8
56.2
51.351.5
60.4
50.8
55.2
52.853.552.753.4
55.5
54
55.55554.6
57.5
55.1
56.5
58.3
54.7
56.3
51.752.753.654.253.5
57.4
52.552.853.3
60.8
54
59.9
62.1
52.852.4
58.3
54.8
52.752.6
55.5
53.252.1
55.5
52.4
5453.9
62.3
65.6
53.5
55.3
64
55.5
65.9
54.8
62.5
5556
59.7
61.2
65.1
59.3
61.5
66.4
60.7
62.7
64.7
58.7
60.2
56.756.9
55.1
59.5
65.3
58.3
70.3
57.9
55.5
57.8
59.4
64.1
57.856.7
59.7
61.3
70.3
61.5
64.865.3
66.5
60.4
66.3
61.862.263
59.9
65.164.463.7
66.3
61.3
64.4
65.6
61.2
69
62.761.6
70.1
64.3
68.267.6
65.6
58.759.7
66.966.5
63.762.8
67.9
73.8
67.7
63.7
67.3
6665.9
63.2
69
64.4
67.9
62.1
66.4
64
66.4
68
64.8
66.367.2
64.9
66.965.865.966.7
60.3
64.5
66.4
64.9
67.867.4
63.563.2
61.8
64.565.6
66.9
65.3
69.5
72.9
68.1
66.267.1
64.164.263.163.96363.6
64.8
68.6
66.2
69
45
50
55
60
65
70
75
80
85
90
95
12:00 AM12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐Minute Intervals
A‐Fri 10/25 A‐Sat 10/26 A‐Sun 10/27 A‐Mon 10/28 A‐Tue 10/29 A‐Wed 10/30 A‐Thurs 10/31
Location A: Main and Beardsley
45
50
55
60
65
70
75
80
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
dBA
Time
Barrio Logan Noise - 10/25/19 to 10/31/19 - Location A
57.6
69.368.5
56.8
61.4
67.0
62.4
60.3
50.8
62.3 62.4
65.8
57.2
55.055.7
53.7
63.7
65.4
59.3
58.1
52.8
55.3
67.666.8
58.3
60.0
64.4
56.7
62.5
66.7
58.3
55.5
57.0
59.4
60.7
62.9
60.159.0
58.3
56.5
59.4
61.8
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/11/19 to 11/17/19 ‐ Hourly Intervals
A‐Mon 11/11 A‐Tue 11/12 A‐Wed 11/13 A‐Thur 11/14 A‐Fri 11/15 A‐Sat 11/16 A‐Sun 11/17
Location A: Main and Beardsley
50.550.2
52.7
60.3
66.4
59.2
50
51.651.250.2
53.5
50.8
52.1
50.551.5
54.6
50.250.9
49.548.8
53.3
60
64.9
49.448.7
5151.452
67.2
55.3
5251.5
53
51
49.649.749.8
52.6
51.4
56.9
53.3
51.1
52.552.952.8
62.4
53.2
60.4
51.950.850.750.4
52.8
50.3
51.7
50
51.2
63
68
50.8
54.9
69.1
86.9
63
51.1
49.750.7
53.854.7
48.6
49.9
48.748.849.249.6
51.3
49.550.550.5
53.4
50.750.851.550.950.55049.5
55.8
49.1
54.7
67.3
54.9
49.6
51.3
52.6
48.749
56.5
51.6
47.4
51.1
48.8
50.4
47.64847
4947.9
49.348.949.649.9
48.148.749.5
4848.248.248.848
57.6
49.249
55
50.750.150.55149.948.848.949.850.349.749.64948
53.5
56.3
51.3
52.552.152.1
49
54.5
48.847.8
50.3
53.454.153.5
47.2
54.7
47.848.949.9
53.5
51.3
48.549.4
51.3
48.2
57.3
50.4
46.447.247.3
50.2
63.5
86.1
65.9
63.9
61.6
60.260.2
47.447.548.1
50.5
47.3
49.2
47.647
56.1
49.1
47.746.947.2
48.4
4746.7
48
5050.2
5252.8
49.2
54.8
48.4
56.5
48.1
64
50.8
59.5
46.946.9
48.547.748.749.450
61.5
55.4
53.1
57.5
49.9
51.4
48.9
55.4
50.3
53.55352.7
54.2
58.6
64.9
50.8
49.349.4
60.7
55.9
49.4
50.6
56.7
49.2
55.2
65.5
52.7
62.5
67.4
57.3
47.9
52.7
58.1
65.1
58.4
47.247.548.5
53.7
50.1
54
56.7
65.2
50.2
63.1
64.3
61
64.7
57.7
62.3
52.2
49.2
58.2
62.3
64.9
57.7
59.7
56.6
52.3
50.149.5
61.1
65.1
55.9
52.4
58.3
5757.6
59.2
68.2
53.3
63.1
61.8
57.3
60.5
67.568.5
55.1
67.8
59.6
61.261
58.8
62.763.1
66.8
60.5
53.3
60.5
55.5
59.5
66.9
65
63
66.7
61.9
66.5
60.861.2
65.5
53.8
64.865
63.462.5
64.3
57.6
67.7
61.5
6565.4
61.9
67
59.5
61.460.461
67
64.6
61.2
59.5
66.1
62.3
58.6
64.2
66.967.5
60.8
66.6
63.7
75.1
67.1
60.461.3
59.5
66.166.4
73.6
65.8
6463.8
65.2
72
78.9
64.3
67.5
61.9
67.6
61.9
67.6
59.4
66
62.1
65.2
52.9
56.4
58.8
545554.4
55.6
60.8
53.754.75454.4
52.853.4
51.7
53.6
57.9
59.7
52.652.752.852.7
54.7
58.1
66.6
52.4
5455
58.3
53.653.9
52.7
55.454.3
52.852.553.5
56.7
63.9
52.653.1
68.7
77
55.5
53
68.1
63.9
56.3
61.1
53.6
5151.9
53.2
59.7
66.5
52
67.3
72.272.6
68.7
63.3
52.952.95454
52.453.5
52.152.5
54.5
5352.9
56.3
54.353.8
56.1
51
52.752.5
55.4
52.5
54.4
52.1
50.951.1
55.4
57.1
67
56.9
60.5
50.851.7
50.45151.4
48.949.348.248.248
49.7
53.6
49
46.846.4
47.748
50.9
53.8
47.447.246.647.3
48.547.848.6
47.1
49
58.6
49.2
59.2
49.748.747.847.3
49.649.6
51.8
49.6
47.747.147.1
48.847.9
50.2
47.7
58.5
55.2
49.2
47.247.647.446.9
48.4
47.246.847.3
56.7
47.847.247.646.7
49.8
48.549.2
47.147
49.248.2
54.6
49.1
46.2
55.9
46.2
48.748.648.1
46.146.2
47.946.9
48.9
4746.8
48.4
46.5
50
52.9
76.675.8
64.7
61.3
59.1
53.6
48.649.5
51.2
49.5
56
49.7
48
55.7
47.2
5050.9
52.353.3
48.849.949.7
55.2
47.5
49.1
47.5
53.7
49.4
52
49.6
55.9
47.7
50.451
47.7
54.5
52.6
50.350.750.8
48.8
54.6
52.751.952.5
57.3
50.150
53.752.8
51.351.3
49
50.7
56.755.8
61.2
66
55.6
67.1
56.3
53.8
58
51.1
54.1
63.2
67.4
61.6
56.5
50.7
58.1
67.9
59.3
67.7
55.6
64
65.4
55.956.2
58.9
55.1
56.8
6565.9
64
60.3
56.9
53.1
57.357.2
64.5
66.4
60.759.8
57.1
54.6
56.2
58.9
67.9
55.3
61.3
53.853.8
59.2
65.766.8
59
65.1
67.3
59.7
58.559.459.5
62
68.3
62.8
58.6
61
59.759.1
68.268.268.2
57.7
65.9
68.469
59.258.157.757.9
67.367.4
60.7
68.968
61.3
65.96768
62.5
70.3
60.361.2
59.1
62.6
65.2
67.467.2
58.3
66.1
57.8
62.4
64.7
67.8
65.464.5
71.5
65.6
60.3
62.2
67.2
63.964.7
71
64.565.1
63.5
66
68
60.9
68.6
66.3
62
63.463.663.563.663.5
47.7
49.3
51.351.3
47.1
6059.1
67.1
57
52.8
57.9
66.1
56.5
53
48.7
50.8
52.1
5049.3
56.2
50.9
49.2
54.3
4948.9
50.1
60.4
66.9
4848.447.7
60.8
51.2
52.8
56.4
46.7
51.9
46.5
51.452.4
49.750.8
57.7
46.2
48.1
51.7
49.6
47.9
54.8
49.8
46.8
49
47.4
51.1
47.5
46
48.8
57.4
6463.9
47.3
49.6
48.4
59.8
47.4
48.647.947.2
45.7
53.2
46.346.7
52.4
46.947.6
52.7
50.7
51.9
48.448.8
54.7
61.5
65.8
54.7
47.7
49.1
46.546
61.9
66.3
48.1
51.1
57.4
55
46.7
50.1
47.8
46.6
55.1
58
47
45.4
47.5
55.5
45.6
54.4
48.8
45.646.4
45.145.145.3
47.148
49.3
47
45.6
49.9
57.5
55.9
52.3
49.2
60.5
58.959.9
50.8
46.245.1
46.746.6
48.8
54.7
46.3
56.5
45.5
52.4
47.4
5150.7
52.1
46.845.845.945.9
51.2
49.6
46.4
53
47.1
48.4
51.1
45.7
49.8
56.3
52.1
59.4
52.3
48.1
46.447.2
50
56.9
50.7
64.36464.164.3
57.4
61
50.9
47.347.847.947.347.5
48.749
57.6
48.4
56.6
50.9
47.347.648.1
55.6
47.4
45.345.646.547.5
46.1474848.9
56.7
51.751.5
55.2
49.749.548.8
55
56.7
55.3
4950.1
5252.4
48.2
55.5
52
56.9
54
56.857.2
51.9
57.1
52.9
55.7
50.4
52.553.2
49.148.2
52.4
54.8
48.8
5454.8
58.9
53.2
51.5
57.7
49.9
57.4
49.4
46.9
61.8
66.3
59.5
63.1
67.1
49.4
66.6
65
53.1
50
56.1
54.5
51.8
56.3
67.7
55.8
67
65.6
56
67.2
59.3
55.4
52
57.3
59.8
67.2
59.759.6
61.6
64.9
56.9
64.3
65.8
54.2
52.6
54.4
61.7
6060
53.7
66.766.1
60.6
56.5
53.6
62.261.1
59.1
67
6161.9
67.9
53.5
55.9
59.860.6
67.5
74.3
56.7
65.1
66.7
58.9
66.6
58.6
61.1
67.3
60.5
59.3
64.6
67.167.5
62.5
64.5
59.158.5
61
68.367.5
63.364.1
62
67.5
61.661.9
68.2
65.2
61.6
65.264.6
67.6
64.264.363.3
67.3
60.8
64.8
57.7
65.8
67.4
69.368.5
6362.6
64.4
66.867.3
63.4
67
64.2
67.6
63.4
66.7
68.4
66.1
62.3
69.7
63.8
67.5
65.8
63.8
67.5
65.8
67.9
57.7
54.5
58.1
54.154.453.752.9
65.6
59.8
52.552.553.254.153.7
67.8
5452.95453.153.254.2
55.855.8
53.654.153.1
51.8
58.1
67.1
53.8
57
53.1
59.9
56.8
62
53.253.953.654.6
60.8
67.7
52.853.2
54.554.553.953.453.3
56.6
52.8
56.2
52.452.952.252.7
56.7
62.4
66
56.5
53.452.552.7
54.354.5
58.2
53.8
52.1
56.5
54.8
57.9
60.3
57.1
53.254
51.952.152.7
50.850.850.951.4
53.9
51.3
52.652.652.2
63.1
64.8
49.949.9
51.8
49.7
58.2
51.552.5
51.1
53.3
57.3
51.451.350.5
53.5
57.9
49.249.2
52.6
54.5
50.250.3
73
58.4
48.448.247.748.3
54.1
48.8
47.6
5858.8
48.548.849.849.4
59.3
53.3
49.2
52.7
49.8
52.9
48.347.647.547.9
49.3
58.1
47.447.748.2
50.9
52.1
48.8
54
52.4
48.6
50.851.9
55.9
58.2
51.8
56.9
52
5049.948.848.7
50.449.749.35049.249.748.7
55.7
47.9
49.648.649.1
56.4
54.1
59.9
49.8
51.8
49.2
52.2
50.950.8
53.4
54.7
63.3
5959
48.7
54.4
49.949.84948.347.6
51.5
46.347.3
48.749.648.8
60.7
52.2
50.2
60.9
53.7
60.3
58.1
49.7
52.5
49.7
51.2
54.1
51
61.4
49.950.2
57.5
52.753.154
49.2
53.3
54.9
52
61.7
48.548
52.752.3
55.5
50.5
53.5
56
58.8
50.6
53.6
51.7
56.5
49.4
53.9
58.9
48.2
52.5
50.4
62.1
51.4
60.2
66.3
47.7
65.8
59.7
62.9
65.5
50.4
65.5
58.1
53.2
60
63.2
67.1
61.1
65.8
53.1
6161.5
54.4
55.8
63.563.7
57.1
59.2
53.7
55.5
59.9
50.8
60.9
67.6
60
56.5
59.2
57.1
53.5
57.9
62.2
67
52.3
66.5
72.6
71.370.270.6
76.2
77.4
75.475.1
76.5
68.3
63.3
56.756.356.1
59
62.6
50.5
64
69
58.4
52.4
61.260.6
74.4
65.9
67.3
61.461.5
65.2
77.9
66.6
65.3
63.463.1
60.9
65.265.3
67
63.7
62.1
65.6
67.4
61.5
62.762.4
63.9
65.9
63.662.8
69.8
66.3
62.1
59.9
64.4
66.4
67.967.8
63.1
64.7
63.1
65.265.3
61.9
67.1
62.7
73.5
62.9
64.9
67.7
63.8
68.7
62.4
67.1
60.361
64
61
64
52.252.1
56
59.2
55.354.8
66.1
62.66262.5
5655.2
52.552
53.454.45555.1
62.6
53.15453
54.9
53.5
57.5
54.5
52.7
60.4
67.8
57.1
55.756.7
55.5
53.7
52.553.6
59.1
54.4
53.252.2
53.7
55.955.7
53.2
51.451.1
52.852.853
51.7
62.3
51.1
55.2
50.7
54.2
52.8
51.4
54.4
63.5
66.366
73.6
65.5
60.9
59.6
50.951
67.1
51.251.4
53.7
51.250.7
54.7
51.3
49.350.25151.851.451.752.1
53.7
55.7
51.6
58.1
51.150.4
60.5
67.2
52
54.6
60.3
51.9
53.9
5252.8
51.5
55.855.4
50.8
56.2
58.6
56.256.8
58.2
66.7
49.349.149.4
56
50.450.950.85150.450.850.4
52.251.7
53
57.7
52.752.753.7
51.451.9
58.1
62.4
68.1
52.552.3
54.3
51.8
50.550.951.2
59.4
55.356.2
52.151.950.951.7
54.4
60.9
51.351.652.3
58.8
54.6
57
52.1
53.3
63.1
80.3
74.8
65
6262.7
51.5
55.6
53.252.452.552
49.850.750.149.250.249.850.849.8
5150.449.650.549.950.651.5
56.6
51
49.6
53.6
57.2
62.4
49.149.5
51.6
54.3
61.7
51.6
49.849.6
60.4
525150.15050.150.5
49.3
52.8
54.8
57.9
52.7
56.7
58.2
53.752.6
51.4
53.3
58.9
50.451.1
52.9
56.5
54.355.254.3
52.6
54.755.1
57.256.6
62.9
55.855.9
53.3
55.555.955.254.9
57.6
53.253.6
54.8
63.8
66.7
53.4
52.1
65.8
64.3
53.5
64.7
63.1
59.259.6
58.4
64.6
59.1
63.6
58.5
64.264.9
62.3
67.9
52.8
66.7
57.1
53.3
56.1
59.1
66.7
54.8
57.357.1
63.4
58.5
64.5
60.761.4
57.7
54.2
57.8
55.5
61.9
66.8
60.2
63.3
60.7
64.5
57.9
60.2
56.5
58.6
62.4
66.4
64.1
67.4
52.3
61.5
58.6
62.2
67.4
60.6
62.8
64.764.2
69.5
63.2
66.6
64.2
56.7
66.4
69.1
58.4
56.2
6868.3
56
69.8
63.5
66.1
59.5
6766.3
68.6
63.3
66.466
63
68.5
64.6
60.3
6363.9
67.3
62.1
66
69.2
72.2
59.358.960
64.6
66.4
75.9
70.9
63.163.664.6
66.966
61
65.966.7
68.2
61.9
64.9
67.5
64.9
66.4
65
62.6
65.2
67.467.967.467.9
63.2
53.2
50.7
54.6
56.6
58.7
56.5
61.8
65.6
52.552.9
48.7
51.8
50.6
56.2
52.352.952.3
62.1
67.1
53.1
54.3
48.748.3
52.2
55.9
57.4
51.6
58.9
67.9
5251.4
55.4
60.9
51.1
55.556.1
49.2
50.9
55.1
51.4
49.9
53.4
52
55.655.2
48.9
51.3
56.7
53.8
51.2
57.8
53.6
51.95150
51.851.4
61
67.1
48.248.9
50.9
59.8
50.350.8
49.349.5
52.2
50.8
52.5
50.3
56.3
51.252.153.2
51.3
54.2
50.951.8
58.7
49.649
54
49.949.2
50.650.7
55.1
66.9
61.7
57
60.2
55.7
54.3
57.1
53.3
51.251.8
62.9
49
56.7
59.6
53.2
51.1
49.5
55.5
51
53.5
49.850.451.2
49.3
51.6
49.7
55.5
51.250.249.450.2
54
52.651.8
53
55.9
52.2
61.4
5049.9
51.350.751
54.6
50.7
54.1
51.151
48.8
56.255.8
52.2
53.7
59.860.1
57.1
58.8
56
52.5
5454.8
63.2
55
51
5352.3
56.3
54.6
51.650.8
52.6
54
51
56.5
50.550.8
59.9
55
50.5
54.6
60.7
65.5
62.762.662.7
56.9
59.5
56.1
57.4
55.254.3
52.5
53.954.6
56.15555.456.4
53.955
52.852.7
56.156.2
54.9
59.6
55.9
53
54.9
53.752.753.654.353.9
52.352.452.652.7
56.9
52.2
54.2
64.9
61.5
53.954.754
58.5
56.755.856.3
54.754.755.755.5
5252.1
56.3
51.85150.8
54.5
50.8
5352.3
50.9
53.2
57.1
65.3
61.1
57.857.9
68.1
54
62.4
52.9
72.8
51
48.9
57.7
56.3
54.954.6
56.2
58
55.8
53
60.3
65.7
58.4
5152.151.150.3
56.5
54.7
60.8
52.8
5756.1
60.1
54.7
57.7
53.8
61.4
64.9
55.1
57
58.3
57.157.5
55.5
51.6
58.258.4
64.2
58.659.7
51.2
61.9
69.3
55.5
50.950.9
56.5
55.2
61.6
59
54.9
58.7
51.6
52.8
51.552.453.1
61.5
63.7
55.9
61.6
54.7
56.5
59.3
55.5
63.9
59.8
61.7
57.7
53.6
62.9
66.4
58.3
55.555.6
57.95757.157.5
63.1
59.6
57.8
55.6
62.363.2
68.2
61.361.9
68.3
59.9
57.9
62.2
58.2
59.460.159.4
55.5
66.7
60.5
67.9
70
67.1
59.960.1
69.6
63.8
70
63.562.9
57.2
59
61
67.4
59
61
6665.6
59.159.3
56.7
61.162.2
59.7
60.9
65.3
59.3
56.557.2
5657.1
59
60.6
69.1
61.9
58.958.757.8
5553.9
55.655.854.854.95555.1
61.2
67
61
57.857.4
59.5
55.656
54.354.4
56.4
62
53.7
59.959
56.2
54
57.9
55.755
61
55.154.454.754.354.9
56.5
58.558
63.8
67.2
55.8
58.5
62.6
5756.255.756.7
59.4
58
55.955.955.254.9
62.6
65.6
54.5
55.7
53.9
56.4
57.658.6
56.956.456.6
57.9
59.7
58.4
55.3
61.6
66.7
60.660.1
56.5
54.955.856.456.5
58.6
59.9
55.8
58.4
55.9
59.8
56.756
59
56.956.45757.958.958.2
56.556.656.756.155.556.356.7
61.4
57.857.6
60.260.2
63.3
58.8
56.8
55.6
57.2
58.558.258.157.456.857.6
60.559.8
58.157.157.9
60.159.1
55.555.8
57.8
60.7
58.4
60
56.6
59.358.8
56.55656.8
58.8
57.4
58.8
57.557.456.756.2
57.757.5
59.9
56.3
5857.4
55.8
62.4
55.455.455.156.1
57.958.7
56.8
53.3
60.2
55.355.355.7
53.754.454.7
57.3
54.854.2
55.9
57.5
56
57.2
55.255.6
56.856.656.556.656.556.555.656.155.454.955.956.255.656.557.658.3
56.7
55.456.457.357.456.6
59.358.2
55.556.456.1
59.8
56.8
59.659.458.5
55.955.8
58.158.8
56.7
54.6
57.2
55.156
54.753.753.653.853.7
57.4
60.5
54.755.2
53.8
56.9
55.3
60
62.3
54.654.754.5
55.7
54.2
55.756.6
54.4
56.7
54.755.1
56.755.8
60.4
57.757.7
56.156.4
57.7
60.7
66.1
57.758.758.7
57
62.3
67.6
58.7
60.7
58.358.258.559.4
65.5
59.4
61
62.7
61.260.561.360.7
58.5
56.5
57.7
59.158
55.7
56.957.757.356.656.2
61
66.7
63.5
5757.1
55.7
67.5
61.3
57.6
59
60.859.8
62.3
59.8
61.7
59.358.658.3
60
61.5
59.359.159.2
64
61.1
58.1
60.6
67.9
60.660.1
67
58.957.9
60.359.959.7
58.358.358.357.6
59.7
61.3
59.2
66.6
59.659.458.3
60.5
59
64.8
5959
60.360.360.3
61.5
64.8
66.9
64.8
66.9
45
50
55
60
65
70
75
80
85
90
95
12:00 AM12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/11/19 to 11/17/19 ‐Minute Intervals
A‐Mon A‐Tue A‐Wed A‐Thurs A‐Fri A‐Sat A‐Sun
Location A: Main and Beardsley
45
50
55
60
65
70
75
80
dBA
Barrio Logan Nighttime Noise - 11/11/19 to 11/17/19 - LOCATION A
60.8
58.2 58.359.1
65.5
67.9
63.4
69.2
56.2
68.7
64.6
67.5
71.3
67.8
64.8
61.2
65.5
67.1
62.7
68.5
60.4
66.2 66.166.9
59.5
67.5
65.2
58.7
63.7
67.7
61.2
59.2 59.4
56.4
61.3
65.4
61.260.4
56.355.6
58.7
63.0
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/18/19 to 11/24/19 ‐ Hourly Intervals
A‐Mon 11/18 A‐Tue 11/19 A‐Wed 11/20 A‐Thur 11/21 A‐Fri 11/22 A‐Sat 11/23 A‐Sun 11/24
Location A: Main and Beardsley
57.2
61.4
71.8
67.6
60.2
54.355.3
58.7
55.354.8
56.856.5
57.75756.356.556.2
57.557.557.457.5
59.8
5756.856.556.9
58.1
56.8
64.7
68.2
55.854.8
67.1
55.756
57.857.157.556.455.856.3
58.6
62.3
56.156.956.155.654.954.954.854.854.5
56
54.6
56.156.4
54.1
66.567.3
55.5
57.658.3
55.254.254.7
53.3
56.3
53.5
55.4
53.4
54.6
58.5
55.756.756.255.754.755.154.6
58.957.9
55.95655.85656.657.4
55.5
63.3
69.1
58.2
5756.756.75757.4
55.954.8
62.1
56.155.656.756.255.955.756.857.9
55.855.5
56.957.657.2
60.159
60.259.859.659.1
57.157.5
59.4
57.356.456.4
58.4
61.8
58.4
56.2
57.457
58.359.3
56.4
61.5
57.957.9
56.256
64.7
56.8
63.2
54.9
5756.2
59.6
58.25857.157.456.4
58.2
56.6
60.2
5654.955
60.6
56.4
5857.357.2
58.6
55.7
59.158.6
62.1
54.855.556.4
54
56.355.3
60.3
55.2
57.456.3
53.553.4
55.9
62.9
55.454.5
58.358.6
56
59.2
56.2
58.8
55.154.6
63.6
71.1
59.558.7
56.457.1
58.5
59.9
56.156.355.956.656.456.5
55.255.4
56.756.356.656.257.257.85756.5
60.4
58.3
56.3
60
57.156.757.857.9
59.4
56.9
55.6
56.855.855.2
58.4
56.455.5
57.758.257.5
60.9
56.456.9
58.758
64
68.5
62.2
71.3
65.7
55.1
61.9
69.2
58.2
59.4
60.6
62.1
59.7
68.1
61.2
63.5
67
59.1
65.465.8
58.2
60.7
56.1
57.8
65.266
61.2
59.459.5
61.1
70.8
61.7
60.5
62.8
69.168.5
61.461.1
63.9
65.6
61.4
68.268.1
59
63.1
58
60.3
63.6
71.4
65.1
71.3
66.1
60.760.860.7
66.8
70.7
62.8
61.562.6
70.2
72.171.171
58.9
68.9
70.1
68.2
61.561.461.6
69.9
62.3
66.2
68.2
62.6
66.3
68.5
64.764.6
62.7
70.2
68.267.5
69.9
66.265.965.1
69.4
64.5
63.263.9
72.9
71.6
66.3
64
66.2
64.1
66.1
72.1
68.1
69.5
67.4
64
65.8
67.6
69.770.8
68
66.2
69
67.6
70.2
68.1
71.1
67.1
63.664.2
67
64.7
61.9
67.6
58.3
63.964.5
58.3
66.3
69.3
63.7
59.9
55.9
67.9
61.1
55.155.7
75.6
68.3
59.9
64.663.9
56.157.2
59.5
55.356.1
61.6
64.8
59.8
54.953.8
60.6
67.3
58.458.159
57.5
59.4
58.2
55.855.8
58.1
56.4
5858.8
57.556.756.756.6
58
60.9
58.758.9
65.466.5
59.9
55.154.2
61.1
69.8
55.554.4
57.4
54.9
56.4
55.1
59.5
54.9
56.4
54.954.2
62.1
53.752.6
56.456.3
53.353.7
58.1
53.353.854.354.454.855.9
54
55.5
53.853.854.6
66.4
69.9
55.7
54.4
58.2
53.6
60.4
55.756.4
73.3
53.5
55
57.2
54.3
73.7
86.1
67.5
54.2
55.956.6
54.655.254.9
69.5
59.2
56.8
60.1
55.254.755.155.2
59.458.3
55.554.7
62
54.7
59.3
57.7
56.4
55.155.655.654.654.6
56.456
58.8
55.7
58
59.660.5
55.6
60.2
56.256.356
54.2
57.6
53.3
55.7
56.9
55.45656.256.8
58.2
55.954.853.854.9
53.654.254.554.955.4
58.1
5554.454.754.354.254
53.253.652.552.752.6
57.256.5
54.7
53.252.852.5
55.8
52.3525353.453.5
56.4
69.3
54.153.1
54.754.353.653.5
58.1
55.1
56.9
58.2
56.5
60.261.1
74
85.8
65.3
55.155.4
57.4
55.5
56.9
59.8
57.657.5
60.1
57.9
55.8
57
60
57.657.9
56.256.956.556.255.6
62.2
55.8
57.958.259.159.859
60.4
58.157.857.357.957.157.358.3
63.1
68
55.655.4
69.5
61.1
5657
63.2
68.4
57.95857.6
66.7
68.6
58.6
69.2
63.1
68.3
61.1
56.4
58.7
62.6
60.2
64.2
68.4
63.4
65.5
60.5
63.2
68
62.863.7
58.7
56.757.3
61.2
58
62.2
58.8
69.1
63.362.363.364.263.5
60.7
59.3
57.2
59.8
61.6
69.168.2
61.962
64.4
70.3
63.263.1
70.4
67.6
69.7
61.5
66.3
62.9
64.6
70
61.8
66.3
64
59.9
65.2
68.4
64.665.5
70.5
63.8
68.3
64.7
66.7
68.368.2
63.963.762.7
65.8
71.1
67.3
69.1
70.3
66.2
68
65.1
63.2
66.9
70.1
72.3
64.1
70
68.6
62.9
71.1
67.3
69.2
64.663.563.9
69.169.5
65.8
64.6
67
69.9
62.863.3
68
64.3
7171.1
63.663.5
60.259.1
56.7
59
71.8
62.6
56.958
61.362.1
58.957.9
54.1
58.358.457.5
62
59.1
63.9
71.6
65.1
59.5
54.954.1
56.156.6
53.353.2
54.4
56.2
66.5
70.1
60.3
55.455.8
57.7
59.659.1
68.8
57.458.359.2
63.3
54.455.354.8
57.3
70.6
87.6
72.5
74.5
69.2
70.9
69.46969.56969.7
72.8
69.9
83.4
74.3
68.7
70.4
69
63.1
57.4
55.756.355.356.2
54.154.4
56.6
60.5
57.4
55.8
58.9
55.954.95655.1
57.1
54.554.4
55.6
53.954
67.6
69.8
54
59.5
62.1
56.356.8
53
5554.7
57.9
74.4
55.1
60
55.4
61
56.4
65.3
67.7
55.3
65.6
55.554.4
67.2
64
54.4
56.256.7
54.954.854.7
60.2
67
64.7
55.8
61.8
55
56.557.4
67.9
51.6
53.353.854.7
5655.2
57.3
54.8
67.7
63.3
59.3
56.3
64.2
67.3
57.5
53.6
5553.9
52.5
64.4
59.9
56.1
65.7
56.5
63
55.3
63.5
54.7
58.8
60.159.1
63.6
59.7
52
55.6
61.9
78.8
67.9
64.7
66.667.468.1
65.5
59.8
58.2
65.7
67.4
63.4
58
60.5
57.556.756.355.8
62.6
56.9
68.668.868.86969.8
67.5
55.2
53
51.5
55.8
52.1
53.954.2
51
53.854.153.2
56
58.1
63.3
59.9
5655.2
53.853.6
52
54.254.7
57.356.5
60.8
53.354.1
59.5
54.8
59.5
57.2
54.1
56.357.1
54.2
59.1
52.451.751.1
53.3
57.9
53.3
52
56.7
59.1
53.654.7
63.6
69
56.2
64.7
69
65.264.4
62.8
71
58.559.5
52
54.1
60.5
70.9
53.652.9
67.166.2
57.2
63.1
69
54.8
61.1
54
56.8
65.8
69.8
58.5
61.8
60.561.461.4
55.1
63.2
69.9
57.2
60
56.9
66.1
59.960.2
62.4
67.8
69.2
59.260.3
64.1
59.7
67.9
57.5
69.969.3
71.9
64
59.860.8
64.3
70.2
64.1
66.7
71.4
62.462.6
70.1
6362.6
58.5
64.8
71
67.7
59.9
62.2
71
63.964.3
62.5
70.2
68
70.6
64.8
62.3
68.6
70.9
62.3
65.4
70.5
63
64.763.6
66.5
63.1
67.667.3
70.670.4
62.561.761.1
65.2
66.9
71
68.9
64.5
66.167.2
70
6463.7
70
66.1
64.565.5
68
70
64.4
70.2
65.8
68.8
62
63.965
67.5
65.8
54.6
57.4
68.1
61.5
55.9
58.7
62.2
54.5
53.1
55.9
53.553.5
59.7
55.8
58.458.958.7
57.2
62.4
66.1
69.570
67.6
69.7
6765.966.5
64.9
69.7
66.7
61.8
58.858.357.756.956
61.1
55.7
54.2
55.9
61.661.1
53
51.852
54.254.2
57.757.7
51.8
56.6
5353.4
56.2
51.951.150.1
56.8
62.5
69.3
50.6
65.8
85
69.9
54.5
61.1
68.9
56.6
5152
55.4
52.351.2
59.158.7
49.850.249.5
52.2
57.1
50.3
55.6
5049.5
5150.5
57.1
53.7
56.5
70.3
59.1
61.8
53.7
5756.2
61.1
54.2
61.4
66.3
64.7
68.4
65.465
66.665.665.365
70
66.3
65.1
60.1
52.6
50.451.3
57.4
64.163.964.7
57.4
50.8
60.560.6
55.5
51.751.3
59.759.6
54.2
64.1
51.351
53.7
50
63.8
52.1
63.9
52.5
56.7
50.851.451.751.2
54.1
56.4
63.4
56.6
60.2
65.5
58.258.9
61.8
67.9
59.6
63.5
65.5
59.8
50.450.9
67.2
59.7
51.2
64.2
66.166
63.8
56.955.9
59.7
55
52.9
56.4
58.9
51.851.452.251.4
52.7
57.5
59.1
62.4
75.8
82.4
69.4
65.765.3
51.552.2
58.1
52.3
58.2
51.951.651.3
53.9
50.3
55.4
50.550.4
52.6
63
55.1
60.1
51.651.3
52.9
57.9
51.9
54.553.8
52.6
5857.5
62.4
60.5
53.2
56
5958.2
52.3
54.1
52.3
57.7
55.2
58.958.9
53
56.1
53.8
61.260.6
53.953.9
58.2
54.7
52.4
56.8
52.6
59
54.6
56.3
67
56.3
59.5
67.2
55.8
51.651.8
64.3
65.7
52
54.6
62.1
67.4
58.4
64.9
66.3
53.3
63.764.6
54.955.9
58.3
60.4
64.5
60.460.5
68
56.3
62.5
59.560.4
55.4
57.957.1
63.1
65.8
67
60.2
6465.1
69.5
64.3
60
55.6
60.760.761.761.9
66.166.4
69
63.7
66.466.9
80.5
62.8
65.1
63.9
60.760.9
65.2
70
64.6
71.9
61.9
64.3
67.7
57.8
64.8
66.565.9
69
64.9
69.7
65.4
62.4
68.467.3
64.3
66.165.4
70.9
63.9
68.1
63.164.2
66.3
70.1
67.968.6
65.9
68.4
65.3
63.963.6
65.3
69.5
62.2
66.466.8
63.9
66
59.5
66
67.9
62.3
69.7
67.6
63.9
68.2
70
64
65.2
70.2
64
69.4
67.6
64.865.8
61
64
56.7
54.154.6
57.8
62.3
69.2
56.1
59.9
54.554.854.754.854.7
56.7
55.454.7
53.4
57.958
53.9
57.857.5
54.6
57.5
56.2
54.4
58.7
54.554.2
62.9
68.2
54.4
57.156
54.8
58.1
60.9
57.958.2
53.352.9
56.857.4
55.956.6
58.758.6
5554.3
58.6
56.957.5
54.4
60.6
54.654.4
58.2
67.5
66.1
55.3
67.8
64.7
84.4
69.6
68
56.7
58.4
55.456.1
54.7
57.8
54.2
52.3
56.5
54.554.254.5
5655.554.655.454.854.455.1
56.7
54.155
62.7
69.7
54.754.5
56.1
61.1
55.155.155.4
65.9
55.255.256.355.6
61.2
59.8
57.7
55.155.6
56.855.7
53.6
55.7
54.554.553.9
56.2
57.8
54.6
52.1
56.5
55.1
58
55.756.7
58.5
57.2
55.2
58.358.9
54.3
55.7
57.456.555.6
59.2
53.7
57.8
5555.5
52.1
55.5
54.3
56.2
53.6
56.3
60.2
62.6
58.9
54.754.1
5655.3
57.4
60.3
56.3
53.153.4
56.2
60.9
54.15453
62.4
60.1
55.8
64.7
81.5
69.9
66.766.966.9
60.3
67.4
53.652.9
54.153.253.8
59.2
56.8
51.7
54.5
56.156.556.155.7
57.9
60.559.760.3
56.155
57.4
56.2
57.9
60.3
57.656.856.55656.556.657.556.757.2
66.4
61.261.361.862.6
56.9
54.654.655.15654.9
61.9
58.257.2
53.253.253.554.1
58.2
56.7
54.753.854.7
56.4
59.8
55.35554.7
56.5
59.7
61.3
59.8
53.9
55.7
59.9
67
59.8
68.5
60
62.8
55.6
63.1
66.9
57.7
62.6
57.4
53.8
57.457.6
62.6
68.5
57.9
68
58
61.2
67.5
54.8
56
67
60.2
68.4
62.2
56.356.7
5857.858.3
64.7
59.3
64.7
60.6
62.5
57.1
58.9
60.9
59.7
68.4
61.3
58.4
65.8
61.4
58.6
63.2
61.5
69.8
63.5
70.3
62.4
64.1
58.2
62.5
69
64
62.6
59.3
63.1
60.7
70.7
72.6
66.4
64.2
58.8
67.8
69
64.7
61
67.2
63.9
62.5
69.5
60.7
64.6
68.568.668.9
63.764.1
71.3
60.8
66.5
69.3
64.763.8
65.565.8
69.9
64.8
73.4
63.6
68.369.1
62.1
65.1
70.2
64.2
68.6
61.4
64.8
74.7
65.9
70.3
65
63.364.3
68.5
63.7
67.367.4
70.6
69.4
71.1
65
63.66465
69.1
67.467.9
57.5
60.2
56.7
59.358.4
65
68
56.1
57.657.757.8
55.6
60.4
57.4
55.956.8
59.6
58.4
55.2
60.459.7
56.357.4
59.7
58.558.5
57
64.1
68.5
60.6
57.8
59.158.6
65.464.6
61.4
56.456.4
58.558.6
61.2
56.557.1
66.5
55.8
57.156.657.5
56.3
58.8
57.557.257.358
56.755.6
61.5
71.5
57.3
55.4
56.957.256.2
62.362.2
57.758.1
55.3
57.7
56.5
54.954.5
55.95656.6
55.355.6
58.5
55.155.856.455.655.9
57.457.556.8
55.6
63.5
69.8
58.1
54.3
59.3
54.655.7
66.6
64.5
59.8
58.5
57
58.358.5
55.555.7
58.859.4
57.3
60.8
56
60.6
57.9
55.454.8
56.5
54.353.553.754.4
59.2
57.458.3
56.256.856.3
60.6
64.5
55.155.9
61.5
5554.755.1
5857
58.4
55.456.1
54.154.6
56.1
54.455
57.7
54.755.354.754.955.1
59
5756.757
58.4
56.356.156.756.2
54.4
55.855.955.3
57.956.8
54
58.9
55.955.955.2
61.3
54.254.655.154.3
6665.9
68.267.3
62.2
65
55.554.955.8
60.4
58.2
56.4
54.954.655.254.654.4
57.3
64.4
56.1
54.754.654.353.854.7
56
54
55.8
57.7
54.9
57.4
54.65555.3
56.5
54.754.755.254.7
56.2
57.9
54.454.855.956.156.656.157.1
59.1
56.856.356
57.2
55.356.155.655.255.556.657
55.554.854.5
56.55757.3
55.154.7
57.657.156.3
57.6
55.4
57.9
55.755.255.1
56.356.5
55.255.1
56.4
59.5
56.256.7
68
60.460.3
57.2
59.258.358.5
56.6
59.9
57.157
60.559.659.7
57.7
65.6
68.4
57.857.9
55.7
57
62
63.7
60.5
62.1
60.8
59.658.7
60.5
62.7
65.3
69.2
61.562.4
60
56.9
61.3
68.4
59.1
62.1
58.5
62
59.9
61.3
69.4
62.1
58.6
61.1
59.860.3
59.159.5
58.2
59.659.858.8
61.261.161.5
69.5
61.261.961.461.560.961.5
58.6
59.959.459.9
61.762.3
58.658.1
67.767.8
69.8
61.8
58.6
63.5
60.3
61.9
63.7
62
63.262.4
64.2
66.6
68.567.4
66.1
60.2
64.1
77.6
62.4
59.960
64.464.3
59.7
71.270.7
59
61
68.3
59.5
54.8
56.455.3
57.3
6160.2
68.3
59.1
56.355.6
58.6
59.9
57.9
56.256.1
54.554.655
59
64.6
55.3
58.658.159.159.1
56.3
61.8
67.3
61.7
59.758.8
60.3
56.1
57.856.7
58.8
55.7
58.9
60.7
66.2
71
59.9
55.2
59.7
55.9
57.3
55.1
57.6
60.5
55.954.8
57.9
54.654.755.455.9
61.3
67.5
54.954.3
61.660.7
55.8
53.553.3
54.9
61.4
54.953.9
55.4
57.8
54.455
57.6
60.4
54.2
57.457.4
53.454.5
62.6
55.9
59.1
56.3
60.6
53.8
64.6
67.1
54.1
58.9
55.2
56.4
59.159.5
55.8
74.2
62.3
55.1
58.758.4
53.953.154
56.2
54.555.3
54
57.1
60.5
59.3
54.455.154.7
59.1
54.4
58
54.1
58.6
55.5
58.2
55
58.7
62.8
59.4
54.954.655.154.554.855.254.453.653.8
56.4
60.7
57.1
58.8
57
55
53.6
55.355.5
53.553.8
56.2
54.4
57.858.3
55.456.4
54
55.6
54.453.853.253.754.6
59.1
54.2
57.1
54.155.255.155.6
57.5
61.5
55.555.5
54.25454.4
56.4
54.153.8
55.554.554
55.454.754.45555.1
56.8
53.2
54.7
57.757.6
53.954.555.1
63.6
54.154.555.5
59.2
55.4
57.8
54.954.555.1
57.156.656.2
52.952.251.9
58.6
55.8
54.15454.253.253.552.7
53.954.4
56.756
54.554.755.7
57.7
54.2
58.3
55.554.65453.853.552.9
55.3
53.852.853.753.653.1
51.852.351.8
55.4
52.352.2
65.3
53.753
54.6
52.452.8
55.855.8
53.553.454
52.753.353.1
57.2
55.256.2
54.3
58.7
53.8
57.7
55.2
59.6
57.3
60.5
68.4
60.3
53.5
68.3
59.3
535455.1
58.2
60.3
55.355.7
58.9
56.455.9
60
57.3
60.2
56.856.857.3
58.6
55
56.3
59.558.557.5
62.2
5656.356.455.8
61.9
67.6
60.1
54.2
55.8
61.861.4
57.1
55.755.5
59.5
56.1
58.1
61
58.3
56.1
60.4
58.459.1
66.4
59.660.7
59.460.2
56.5
58.1
64.2
70.1
61.2
74
59.6
58.2
69.3
63.3
58.1
61.5
59.3
56.556.557.257.3
64.3
57.6
59.660.3
5959
62.762.4
60.360.460.160.261
58.8
61.1
65.7
69.4
64.8
66.9
45
50
55
60
65
70
75
80
85
90
95
12:00 AM12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/18/19 to 11/24/19 ‐Minute Intervals
A‐Mon A‐Tue A‐Wed A‐Thurs A‐Fri A‐Sat A‐Sun
Location A: Main and Beardsley
45
50
55
60
65
70
75
80
dBA
Barrio Logan Nighttime Noise - 11/18/19 to 11/24/19 - LOCATION A
59.6 59.8
57.4
60.8
66.7
69.0
66.866.0
66.8
70.1
64.5 64.965.5
66.5
71.6
66.6
64.6
65.8
63.3 62.9 62.5 62.7
65.2
61.8
64.4
59.1
57.257.6
60.7
66.2
64.063.2
65.2
63.7
68.9
64.3
66.0
72.4
64.563.6
67.2
74.6
64.265.2
62.7
61.3 61.6
60.5
63.0
58.357.7
56.9
60.9
59.5 59.9
62.4 62.1 62.3
63.5
65.7
63.4 63.863.0 62.9
63.8 63.462.3
63.0
61.6
59.860.3
59.3
57.9 58.257.4
56.2
62.0
65.6
68.6
67.3
66.1
64.964.4
65.3
74.8
64.465.1
64.5
65.966.9
68.1
65.4
62.061.2
60.4 60.1
57.7
62.1
60.1
58.2
61.7
66.166.9
65.865.3
68.5
64.2
65.965.3
67.166.3
70.0
65.466.2
68.2
64.1
61.1 61.0
64.0
58.758.3 58.6
56.5
58.5
61.3
67.466.7
65.9
68.0
65.364.4
63.8
67.166.3
64.7
69.2
66.8
64.3
67.2
62.463.0
61.2 61.2
59.258.5
57.7 57.858.7
62.0
67.1 66.8
65.1
66.9
64.5 64.5
63.4
66.565.4
64.8
66.866.2
66.8
65.1
62.9 63.0
68.7
61.6 61.7
12:00 AM
1:00 AM
2:00 AM
3:00 AM
4:00 AM
5:00 AM
6:00 AM
7:00 AM
8:00 AM
9:00 AM
10:00 AM
11:00 AM
12:00 PM
1:00 PM
2:00 PM
3:00 PM
4:00 PM
5:00 PM
6:00 PM
7:00 PM
8:00 PM
9:00 PM
10:00 PM
11:00 PM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐ Hourly Intervals
B‐Fri 10/25 B‐Sat 10/26 B‐Sun 10/27 B‐Mon 10/28 B‐Tue 10/29 B‐Wed 10/30 B‐Thurs 10/31
Location B: National and CCP
59.6 59.8
57.4
60.8
66.7
69.0
64.4
59.1
57.257.6
60.7
66.2
63.0
58.357.7
56.9
60.9
59.5
57.9 58.257.4
56.2
62.0
65.6
57.7
62.1
60.1
58.2
61.7
66.1
58.3 58.6
56.5
58.5
61.3
67.4
58.557.7 57.8
58.7
62.0
67.1
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐ Hourly Intervals
B‐Fri 10/25 B‐Sat 10/26 B‐Sun 10/27 B‐Mon 10/28 B‐Tue 10/29 B‐Wed 10/30 B‐Thurs 10/31
Location B: National and CCP
57.657.9
55.5
58.3
59.9
58.6
60.159.158.7
60.3
61.8
59.558.859.660.1
58.1
60
67.6
60.6
61.9
59.558.659
57.458.559.1
57.7
58.9
60.159.7
57.8
56
63.7
59.7
56.8
60.6
57.5
59.258.758.7
59.958.858.158.958.9
60.9
58.8
57.1
59.559.3
61.8
57.1
55
56.2
58.858.859.9
56.8
60.5
57.558.1
64.2
59.1
56.956.856.457.557.2
58.458.8
60.2
57.959
57.2
60.4
58.158.8
57.257.3
59.4
56.8
55.656.355.255.856.4
54.4
56.655.954.8
56.9
54.4
58.658.958.1
60.359.959.9
64.164.7
57.657.857.4
54.9
57.3
61.1
57.857.8
59.8
56
58.3
55.8
70.6
57.9
54.953.9
58.2
62.262.862.9
60.1
55.6
61.1
63
58.2
61.1
55
52.752
59.6
55.1
53.752.8
54.4
52.653.654.6
59.5
56.256.8
61
55.7
51.251.9
54.955.154
55.8
5453
60.4
55.756.5
59.1
62.963
59
56.9
54.4
57
52.752.4
56.9
52.252.8
54
56.355.956.7
54.6
57.8
61.8
58
54.755.355.956.555.4
54
59.5
54.8
56.2
58
56.357.1
59.458.7
60.7
56.755.956.4
65.2
58.257.9
56.6
54.7
56.856.5
58.1
59.5
64.563.4
57.25757.157.1
59.2
5857.958.358.8
56
57.756.656.5
59
57.256.9
6160.460.2
57.8
56
63.2
60.859.858.9
57.4
60.2
61.461.7
57.9
60.459.758.7
60.161
72.4
67.4
61.1
59.2
60.9
59.3
61.160.5
61.76161.260.3
62
59.6
57.7
60.160.7
63.1
60.461.1
64.364.164.663.863.2
61.7
63.662.662.6
66.1
73.1
65.5
62.9
64.863.9
62.663.1
67.4
80
63.863.5
65.5
66.8
65.564.9
67.96766.1
64.6
66.8
68.9
66.6
64.6
68.2
65.6
70
62.763.263.6
61.862.3
63.5
67.4
63.9
70.7
63.9
67.4
63.3
64.8
67.266.3
68.3
70.3
65.9
70.1
67.867.8
70.8
66.3
67.867.4
69.4
71.1
65.6
67.46766.6
68.567.867.1
70.4
68.8
67
68.868.268.8
73.3
66.767.5
68.969.9
67.6
69.268.769
78.6
68.6
71.771
68.369.2
67.968
65.9
68.1
66.4
67.7
65.766.265.2
68.7
67.5
69.3
67.4
58.9
61
65.564.964.5
63.262.16261.9
60.460.1
62.7
59.4
70.9
62.4
58.1
62.5
58.6
59.860.461.1
58.7
57.158.259.160.1
66.6
61.9
59.358.5
60.1
58.858.25959.1
62.5
77.6
62.9
59.9
64.863.762.9
58.358.459.558.858.858.357.7
58.958.758
61.4
73.3
63
57.4
59.7
58.5
57.2
59
55.8
57.756.957.9
56.456.8
58.158.9
56.557.357.3
56.155.8
57.656.7
58.6
62.3
58.958.1
59.459.558.658.958.959.158.7
57.8
56.657
65.4
58.3
56.9
58.758.759.859.258.1
59.358.658.558.6
63.5
59.6
66.7
63.4
57.758.158.359.4
56.1
59.1
54.5
5858.5
56.856
54.655.554.7
57.856.957.456.7
54.754.654.955.5
57.5
54.7
55.9
60.2
66.8
52.3
53.7
56.5
54.754.1
56.4
53.954.854.1
56.855.756.655.756.356.6
5454.154.3
56.3
5857.457.5
55.5
54.15555.755.2
56.7
58.457.7
55.4
56.757.357.357.558.257.256.756.2
58.8
57.658.55857.758.3
56
57.656.857.8
55.3
57.257.258.2
55.756.856.856.8
65.6
56.2
58.3
56.356.65756.556.155
53.2
56.3
54.153.7
55
59.1
54.854.2
58.9
60.5
54.753.7
55.154.954.7
57.1
58.8
57.3
54.1
58.9
55.8
60.7
57.356.4
54.7
57.3
59.5
55.2
56.4
57.7
59.9
55.7
57.356.3
58.157.658.4
59.8
56.357.256.3
63
5756.356.357
61.6
63.963.4
61.5
56
57.957.257.258
59.9
5756.957.957.257.4
59.959.158.9
60.4
57.6
60.4
63.8
58.958
59.9
58.1
62
57.3
59.5
61.260.159.259.9
67.1
59.160.2
6261.1
59.8
61.160.560.46060.860.661
64.2
60.4
63
61.3
64.4
57.5
65.7
59.659.7
61.5
59.660.759.8
57.7
59.9
58.7
60.26060.2
72.8
68.1
64.763.7
59.1
63.3
60.761.5
58.1
62.7
61.1
59.56060.4
70.4
60.3
79.4
63.5
58.9
61.16161.461.561.561.962.1
65.564.8
62.462.2
64.8
62.8
67.1
73.4
68
64.7
68.6
63.1
61.261.5
64.2
62
65.5
61.2
66.6
61
63
61.8
63.463.7
60.8
70.4
58.658.1
62.9
56.257.156.757.5
59.758.9
57.4
78
61.2
58.157.557.158.1
60.3
58.459.3
62
60.161
57.356.7
59.258.558.657.7
56.4
58
59.9
66.7
63.463.664.3
59.3
56.6
60.7
64.7
57.558.4
57.1
64.7
56.257.358.158.8
55.154.5
57.558.158.3
60.9
59.6
62.6
59.658.657.8
55.656.2
5556
54.2
59.3
58.1
55.555
56.2
59.4
56.455.8
54.6
59.9
54.9
69.8
55.7
52.653.4
59.959.159.8
57.6
60.7
55.9
57.457.3
54.4
55.8
58
56.5
58.3
55.455.4
60.8
56.4
53
5554.3
61.3
57.1
53.6
56
58.7
56.956.656.655.856.756.1
57.3
55.5
58.7
55.656.757
55.855.9
61.3
57.357.457.9
55.9
59.1
60.4
57.356.8
59.1
57.9
60.3
56
58.358.157.35756.9
59.358.6
57.157.556.957.3
58.9
55.8
57.156.7
58.257.9
5656.7
52.1
54.5
59
61.1
57.356.256.9
55.4
58.7
57.1
59
57.858.457.858.758.3
55.556.355.957
59.4
56.255.756.155.5
62.4
54.8
56.2
54.2
56.4
58.6
60.5
55.1
57.357.2
54.9
58.2
55.355.355.955.755.1
58.2
56.955.854.754.4
60.3
56.156.4
54.7
56.1
57.458.1
59.9
57.4
56
59.1
56.757.7
59.158.657.8
54.4
56.8
54.4
58.4
52.8
55.556.5
55.356.255.555.656.2
58.557.557.957.9
56.6
55.2
58.1
55.555.5
57.6
54.355.154.755.856.4
57.7
55.9
58.559.1
55.554.654.854
55.8
54.45454.553.954.8
56.6
52
57.257.9
54.254.755.4
52.8
58.5
56.455.656.3
57.5
76
56.956.3
58.1
63.6
57.757
59.1
55.15656.457.456.555.6
585756.957.15857.857.4
54.4
61.4
59.859.2
62.8
60.6
63.1
57.857.557.957.558.557.857.557.1
55.5
57
59
57.8
55.5
56.757.158.2
60.2
56.9
58.458.6
59.858.757.8
61.9
60.7
59.5
64.1
57.75757.9
56.4
59.4
56.2
58.958.958.859.2
61.8
55.4
57.2
58.6
60.2
57.4
61.6
59.1
56.6
58.6
60.3
61.8
59.3
61.4
59
65.8
57.756.8
58.4
65.6
59.258.3
59.6
56.3
63
56.857.556.857.8
59.4
57.2
54.7
50
54.954.3
52.3
56.3
54.5
51.9
60.9
56.1
60.4
53
55.2
53.3
55
56.7
5452.953.7
59.5
53.5
55.354.955.5
53.7
58.3
52.7
55.654.854.553.4
51.1
56.3
65.2
49.9
57
67.1
64.563.8
61.6
50.7
54.654.9
53.4
54.8
62.2
59.558.5
51.652.6
50.7
51.9
63.7
51.752
57.9
52.6
50.449.449.1
52.652.451.9
49
50.4
58.7
51.652.5
49.9
52.453.254.1
49.249.2
52.753.1
50.8
58
5049.7
57.2
54.6
53
54.2
56.556.3
53.854.15353.1
49.9
53.25453.753.5
5253
55.7
58.257.5
60.3
58.7
51.6
53.352.6
55.9
53.9
61.2
49.2
54.4
65.1
49.9
58.9
72.9
53.7
58.2
53.252.1
54.2
56.455.7
52.753.353.953.9
55.1
52.7
54.553.652.6
55.3
59.7
56.3
54.253.7
59.9
55.6
51.952.952.6
56.455.7
57.9
60.6
59.1
64
54.5
60.5
68.7
57.357.9
60.6
57.4
51.9
54.3
52.7
54.753.8
55.956.7
50.6
52
57
48.5
52.2
58.5
54.4
51.2
53.754.3
56.8
54.5
57.1
59.6
55.6
51
56.3
51.4
54.6
52.6
58.4
5555.155.554.7
56.256.657.2
51.8
57.8
53.8
52.45352.9
56.1
53.1
56.655.7
64.8
53.8
55.856.1
52.5
53.7
56.2
54.2
52.8
55.155.8
52.8
55.756.5
58.1
54.653.6
61.1
55.756.155.1
53.7
56.3
55.154.7
58.3
53.1
56.256.657.6
55.955
57.656.555.6
57.9
55.6
54.254.7
57.3
54.3
58
54.1
58
60.6
56.6
59.2
68.8
56.656.1
54.2
57
54.6
56.4
55.1
53.8
55.955.6
58.4
61.4
58.1
60.7
62.7
59.759.9
57.857.2
64.3
60.6
59.358.8
57.358
59.6
62.1
65.8
58.6
61
58.9
61.8
58.4
64.1
61.660.961.3
59.260.1
62.1
60.6
68.2
62.161.260.9
64.1
71.1
65.4
61.6
65.6
60.3
67.4
61.4
62.962.4
60.1
63.9
59.4
61.1
63.2
66.1
63.2
68.2
66
64.3
62.9
64.8
69.4
60.6
64.8
61.9
64.764
66.8
64.1
68.3
61.4
72.7
64.5
60.9
64.1
62.362.5
64.364.5
62.5
64.1
66.8
62.6
65.2
61.8
66.4
65.1
63.564.5
67.4
64.464.4
70.3
66.165.4
62.6
63.862.9
64.1
66.666.5
64.465.1
68.9
71.6
69.6
63.2
83
51.651.8
55.955.256.3
51.9
54.355.4
53.2
55.6
60.8
59.2
54.2
56.1
54.3
56.4
58.3
52.953.452.853.553.3
67.7
63.563.3
60.9
52.4
55.5
53.253.1
54.454.4
57
54.7
61.6
5554.5
63.9
60
53.6
56.4
58
52.1
53.653.953.8
56.8
62.7
59.3
55
53.554.6
53.252.6
55.854.7
53.553.6
51.5
56.8
55
52.553.654.6
53.45453.3
56.1
61.761.1
53.6
515049.4
5453.454.2
5353.6
55.454.9
53.6
55.8
52.952.9
55
51.9
54.4
50.7
52.4
54
61.7
53.553.6
51.8
56.5
54.6
60.9
57.9
53.8
56.3
52.7
60.559.9
58.7
53.4
75.9
56.4
73.9
59.1
50.451.3
56.3
53.1
59
52.9
50.9
54
63
69.9
64.7
56.356.656.755.655.856.8
64.5
56.4
54.4
67.1
57.2
58.6
54.4
53
57.6
54.2
60.2
63.863.4
57.8
52.551.7
54
51.5
54.755.555.6
62.3
65.6
5554.854.1
67.1
58.6
57
52.5
56.1
54.8
56.9
54.6
56.5
53.854.6
56.7
59.5
55.6
52.753.853.554.253.9
56.3
53.9
71.8
54.6
53
60.1
56.8
54.8
61.3
59.7
49.749.750.8
53.854.7
55.9
53.7
55.7
51.9
54.6
53.2
50.451.2
52.8
54.854.5
50.8
52.6
56.7
53
57.1
54.7
50.7
57.3
52.4
60.3
54.253.7
58.1
52.1
54.7
53.4
54.7
61.7
55.8
54.2
59.1
57.357.1
54.755.155.4
58.3
65.6
57.2
58.5
56.3
58.458.758.6
55.4
58.659.6
61.4
56.3
70.2
58.8
55.9
59.4
60.7
57.2
55.5
59.2
57.357
58.858.7
57.358.15757.556.8
61.8
5857.4
62.5
58.2
68.5
57.5
60.259.1
64.563.8
66
57.558.459.4
60.6
64.1
61.2
57.9
60.3
59.159.66060.561
59.458.758.960
67
60.8
67.2
64.9
61.361.361.662.362.8
64.1
61.6
6564.2
62.662.361.2
63.162.8
61.3
63.6
61.6
63.2
60.7
64.6
72.4
61.8
73.7
63.5
66.265.5
67.6
64.263.362.6
64.463.4
65.2
63.3
62.1
69
66.7
62.4
63.9
66
64.4
67.5
62
68.2
69.6
63.963.7
65.1
66.8
64.3
67.1
64.664.6
67.467.467
63.9
68.2
64.163.764.7
65.966.367.1
65.465.6
67.166.2
64.3
66.866.866.5
64.364.4
54.2
57.1
53.7
56.9
5554.754.755.256.3
54.2
57.5
53.1
55.4
54.255.154.9
56.857.9
53.453.3
56.7
51.7
54.8
52.252.852
53.8
59.3
53.554.1
60.2
57.5
53.553.5
51.852.9
62.161.9
56.4
59.7
56.156.9
52.8
72.2
62.9
53.654.5
53.253.654.4
5150.7
58.7
52.7
54.3
53.1
55.8
52.9
54.9
56.5
54.1
60
53.5
52.153.152.5
50.4
54.2
52.8
51.2
52.8
62.9
64.363.3
61.6
54.154.5
50.8
57.2
54
48.9
64.4
67.5
58.4
53.954.7
53.1
56.2
49.9
52.8
54.8
60
54
56.1
53.7
62.4
56.3
54.855.1
51.2
49.7
52.2
57.3
63.1
54.9
52.9
55.9
51.851.2
57.3
49.6
55.1
52.6
51.4
52.751.8
65.966.7
50.1
56.856.3
50.6
5352.6
54.554.7
53.2
51.6
53.7
50.7
53.5
55.9
51.8
56.9
55.756.356.7
58.2
53.5
48.4
52.8
55.3
52.351.650.5
59.2
64.1
53.753.9
56.1
5454.5
56.8
51.9
53.3
57.1
55.8
52.6
49.6
51.952.8
50.651.7
50.450.7
53.9
51.8
50.6
54.253.454
56.4
51.3
62.7
68.9
50.950.549.6
53.254.2
51.351.1
60.2
53.5
54.8
50.8
57.1
55.254.8
64.6
54.255.254.4
55.8
64.3
53.5
55.9
57.8
59.3
53.45454.6
56.4
5555.654.754.253.253.7
59.9
62.5
55.7
53.3
57.1
64.7
55.755.756.3
55
56.756.3
52.9
57.6
59.5
56.3
57.7
55.3
56.9
55.6
61
56.1
57.6
54.1
55.8
58
54.6
56.657.557.4
70.4
59.4
56.5
54.555.654.5
52.4
59.8
555554.4
60.861.1
59.6
58.457.3
60.1
56.8
58.157.1
60.761.8
60.5
59.359.3
55.9
59.7
56.4
58.7
60.759.960
65.3
59.8
61.7
64.665.5
59.959.1
62.3
60.3
66.6
59.960.3
68.4
62.862.2
60.6
62.3
61.160.761.862.1
60.761.8
60
61.661.762.4
61.1
68.3
61.561.762.661.6
69.2
62.6
63.9
61.962.2
64.4
67
74.2
72.6
62.4
64.6
61.1
64.2
66.9
62.8
6666.4
69.6
63.664.5
66.7
65.464.7
61.9
72.3
6867.2
65.8
69
65.2
63.4
67.5
63.263.3
66.2
70.3
66.7
71.3
65.8
68.468.6
66.666
68.2
66.766.465.3
74.1
70.6
67.5
66
70.4
65.4
66.8
64
65.5
61.8
57.656.75756.656.7
57.557.1
59.358.5
54.8
58.2
55.756.6
55.4
56.757.2
58.458.1
56.255.555.2
56.6
55.4
58.858.1
59.7
57.9
59.5
55.1
58.357.657.457.957.2
65.5
58.5
62.6
56.4
57.8
67.9
58.9
57.2
54.4
56.257.257.558.4
56.5
54.3
56.956
57.3
62.6
57.3
54.7
59.3
55.5
56.8
55.4
56.957.2
53.7
57.2
58.459.358.8
56.8
55.1
56.8
59.5
5352.7
57
52.952.7
54.154.454.7
59.7
56.5
54.753.8
56
54.2
57.5
55.254.655.355.4
52.4
56.956.657.2
64.6
59.6
67.1
57.6
63.1
58.158.8
6059.9
56.857.557.857.4
53.7
56.4
54.353.8
59.3
55
52.352.252.8
51.3
55.8
53.553.8
56.2
52.7
54.3
56.7
54.253.9
52
54.8
59
54.4
57.9
52.2
50.751.3
49.550.1
52.7
50.6
51.851.652.2
48.9
58.4
54.1
64.5
54.5
53.1
55.355.3
50.951.2
52.653
57.9
60.3
53.6
57.257.357.9
55.4
5252.4
54.5
52.751.7
50.5
53.153.8
50.2
51.7
56.1
53.2
55.2
53.8
62
71.2
53.6
59
55.7
53.4
63.8
54.4
575657.1
54.1
55.3
56.757.6
56.155.1
56.3
53.7
55.7
57.457.1
53.7
56.356.3
59.8
52.6
62.3
56.855.956.8
66.4
62.3
55.7
58.2
59.7
54.9
56.2
60.7
67.5
58.157.1
61.8
64.6
57.2
55.2
57.558.6
56.457.358
55.655.3
58.1
54.9
58.3
61
59.458.5
5453.4
57.4
55.855.755.5
58.8
55.155.9
57.7
55.1
58.5
56
59.2
54.753.9
63.3
57.257.257.758.558.458.5
57.3
61.2
58.2
60.8
59.2
57.557.6
59.459.4
6261.4
62.8
64.8
60.360.8
62.5
60.3
61.9
59.3
61
62.5
68.7
60.659.7
67.1
61
69.2
60.5
63.7
58.6
63.5
60.660
65.7
59.1
65.9
63.664.1
62.862.8
64
61.261.661.4
63.2
68.1
63.9
62.1
63.7
68.2
61.962.1
63.763.4
67.6
63.563.864.6
61.962.7
74.473.7
65.665.7
62.161.8
69.5
67.7
66.5
63.463.864.764.3
66.2
64.7
68.1
6564.7
68.4
65.165.965.3
66.9
71.8
68.2
66.565.9
67.166.6
64.7
68
73.1
65.4
70.6
69
6665.465.4
66.7
6363.9
65.9
64.3
67.8
65.665
45
50
55
60
65
70
75
80
85
90
95
12:00 AM12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐Minute Intervals
B‐Fri 10/25 B‐Sat 10/26 B‐Sun 10/27 B‐Mon 10/28 B‐Tue 10/29 B‐Wed 10/30 B‐Thurs 10/31
Location B: National and CCP
45
50
55
60
65
70
75
80
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
dBA
Time
Barrio Logan Noise - 10/25/19 to 10/31/19 - Location B
55.2
57.9
55.3
62.2
59.9
64.2
61.0
57.9
54.0
58.5
63.1
65.3
55.1
56.8 56.655.7
61.7
65.2
60.0
58.0 58.1 58.6
61.0
66.9
58.559.5
56.2
57.7
60.4
65.6
57.5
59.1
57.1
59.8
57.6
62.3
60.6
59.358.7
61.2
59.4
63.1
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/11/19 to 11/17/19 ‐ Hourly Intervals
B‐Mon 11/11 B‐Tue 11/12 B‐Wed 11/13 B‐Thur 11/14 B‐Fri 11/15 B‐Sat 11/16 B‐Sun 11/17
Location B: National and CCP
57.6
51.2
54.4
55.9
52.4
49.1
54.5
51.2
54.7
49.7
54
58
64.6
57.9
56.6
55.2
53.953.9
51.1
54.855.6
53.6
56
54
52.7
51.1
52.8
55.2
53.553.8
51.7
54.7
53.452.552.8
48.4
53.5
50.3
53.3
55.3
53.954.153.2
59.1
62.4
56.4
54.253.753.152
56.5
52.5
49.3
5352.853.3
55.2
49.1
54.3
52.7
57.6
48.7
56.1
48.9
51.5
52.852.2
50.3
54.3
47.6
52.453.1
54.6
61
49.650.5
52.453.5
51.4
46.3
49
56.6
48.8
56.7
49.8
55.9
57.7
50.2
52
54
47.2
49.3
58.8
68.3
53.2
47.3
51
64.2
56.2
47.7
53.252.9
50.8
53.7
47.2
4949.4
52.4
48.4
53.152
54.3
55.5
71.8
50.2
54.8
49.6
51.1
48.4
56.255.1
49.1
47.5
54
55.2
52.952.3
50.449.849
53.4
50.9
54
57.6
47.7
50.3
54.4
49.950.5
51.852.451.9
57
46.7
51
54.8
51.3
55.3
52.4
47.9
55.9
54.7
50.1
56.457.2
60.5
58.659.1
48.9
60.3
54
52.2
58.5
56.9
67.4
52.4
45.9
54.9
50.8
54.7
47.2
49.7
51.9
50.5
53.4
48.6
46.3
49.9
51.2
47
49.5
63.5
54.8
50.2
46.5
55.7
47.447.6
57.6
52.2
53.652.652
54.7
52
49.6
53.6
46
48.8
51.352.252.5
47.247.448.348.6
54.5
52.8
48.8
62
78.6
58.4
60.7
53.8
59.7
66.6
63.963.2
56.8
55.4
52.5
54
56.9
54.455.1
52.2
54
55.956.655.556.555.7
52.6
56.756.3
48.8
55.755
52.252.3
56.8
55
59.2
55.5
58.2
56.7
53.152.8
54.455.555.5
51.4
54.1
56.756.8
53.352.9
55.9
70.7
57.5
55.7
61.9
57.857.9
59.5
56.9
53.854.4
48.5
5656.2
58.1
63.3
56.9
54.855.555.2
66.4
59.6
56.7
58.5
56.255.3
59.258.7
67.3
59.259.3
57
55.6
58.7
68
60
58.3
60.4
58.2
55.5
60.160.2
57.857.4
55.1
59.159.760
58.4
60.7
68.9
61.2
63.9
58.6
68.7
59.3
64.7
61.9
59.859.2
56.7
61.3
65.7
67.3
70.2
58.4
60.1
64.7
61.3
59.9
63.9
67.7
60.4
61.661.161.5
64.9
67.1
59.859.5
62.2
67.9
61.4
62.6
60.1
61.5
70.1
64.1
61.2
71.7
61
64.7
62.463.2
64.463.3
67.2
63.362.4
64.4
61.4
64.4
61.4
56.2
61.1
55.154.3
64.3
52.95453.754.355.2
70
54.455.5
59.159.4
55.1
57.1
53.6
55.6
57.156.7
55.556.4
54.1
56.3
54.7
56.7
51.7
68.3
63.2
66.6
59.4
56.656.2
52.452
54.855.9
64.6
74.1
55.8
59.2
55.9
53.2
62.4
52.653
54.553.554.2
58.9
53.9
51.8
58.6
55.1
51.6
5352.9
51.5
52.752.353.253.853.652.953.5
51.4
53.153.8
58.9
56.6
54.1
56.3
54.354.3
51.751.8
66.6
63.863.3
61.8
53
54.8
52
57.8
56.3
54.1
52.8
59
55.1
50.1
51.7
55.9
5352.8
62.3
55.6
58.2
61.3
63
53.6
54.8
52.9
54.7
62.3
56.9
65.5
59.9
52.6
55.3
60
56.9
52
50.550.849.7
54.3
52.4
56.5
5050.3
53.8
50.551.5
57.5
60.7
53.4
52.2
49.6
53.554.3
51.8
53.752.8
50.1
5251.9
55.5
50.7
52.451.851.952.1
57.3
55.755.2
51.8
54
56.95655.556.3
53
56.9
53.353
55.6
54
51.5
53
51.8
54.653.954.7
52.7
49.649.5
52.953.3
50.351.150.3
57.7
52.452.4
49.6
53.7
55.3
50.3
55.6
48.449.3
51.7
55.954.95453
55.6
51.751.952.7
55.3
49.750.4
48.8
54.1
50.7
53.5
50.9
55.3
58
48.8
55.9
71.7
56.7
55.5
58.6
52.6
55.455.555.556.5
53.9
62.7
55
57.1
60.7
53
54.7
56.556.555.7
57.156.857.5
55.756.2
57.5
54.154.7
57.2
60.7
58.3
5656.2
58.7
55.3
64.9
63.2
51.2
59.8
55.9
53.3
51.952.7
55.6
73.6
76.3
56.1
53.8
60.8
56.3
54.6
55.8
57.458.3
54.4
64.3
58.958.2
60
56.6
59.2
63.4
56.656.1
61.362.3
59.858.7
57.4
62.9
59.559.560.6
57.857.5
60
61.2
57.8
60.359.5
62
66.5
62.2
58.8
64.3
59.3
61.460.6
62.5
58.958.558.659.2
60.7
63.2
58.859.8
58
61.7
58.757.7
60.160.8
58.9
61.8
70.6
66.266.5
61.8
73.1
66
62.963.8
61.560.961.9
65.2
61.2
63.4
67.4
64.364.1
62.4
64.8
58.2
63.9
60.960.7
62.661.7
67.4
64.8
63.263.3
73.3
61.8
65
69.9
65.5
63.3
61.2
63.6
65.6
61.562.3
65.4
66.8
60.5
63.7
61.762.163.2
68.8
66.6
69.4
63
65.7
63
65.7
53.452.351.9
56.255.9
57.6
54.3
51.3
54.253.554.354.3
51.7
54.153.3
50.2
60.2
51.2
55.155.6
53.853.5
52
55.9
54.5
53
51.2
52.7
65.8
48.4
54.7
55.9
52.852.8
51.250.5
54
55.9
60.8
58.857.8
55.9
51.3
52.8
54.755.1
53.552.6
48.4
53.2
50.6
48.148.3
52.652.5
54.3
50.2
51.4
50
53.4
50.4
67.4
5150.6
55.5
49.248.3
5453
48.448.2
51.7
47.7
62.5
64.8
63
58.6
54.353.4
55.2
52.4
47.9
57.4
52.6
55.5
53.253.8
56.1
54.6
51.8
54.4
57
58.759.3
56.6
51.750.8
55.6
54.2
63.5
52.1
55
50.4
56.5
55.1
51.4
54.3
50.7
49.349.5
50.9
53.752.8
57.5
56.1
52.3
55.7
53.1
49.5
48.1
50.751.8
49.6
51.351.7
57.8
55.3
51
46.1
49.4
52.8
55.8
52
49.149.7
47.1
49.9
4847.7
51.851.4
54.9
47.847.4
57.4
48.4
51.4
60.7
51.65251.3
54.654.6
47
53.754.354.5
49.9
51.1
64.6
49.2
5252.8
49.2
53.8
48.44949.6
59.2
46.5
48.7
55.1
52.2
71.4
49.9
48.448
53.554.1
49.1
53.7
56.3
49.5
53.8
47.348.1
61
53.152.453.2
57.7
48.1
50.349.6
53.8
50.6
47.9
51.4
57.5
52.551.550.6
57.656.9
48
51.1
53.6
52.3
56.155.2
58.4
56.2
53.2
54.8
52
54.4
56.3
57.6
48.9
59.3
56.3
54.4
56.1
53.754.655.6
57.9
60.4
58.759.2
52.9
62.9
54.4
52.953.9
57.9
54.255.255.9
58.1
55.154.555.155
53.754.754.35555.254.9
57.256.957.7
54.3
57.4
65.2
71.6
53.653
5656.4
58.1
61.3
56.656.757.757.657.758.3
61.2
57.857.957.756.7
67.8
59.260.259.9
62.3
59.65958.557.4
64.8
62.3
60.259.7
61.9
60.2
72.8
60.6
62.361.560.4
6362.5
58.7
61.4
59.7
60.961.5
60.360.659.7
62
59.860
62.3
59.2
64.3
62.5
61.2
65.2
61.962.5
60.9
62.262.9
68.369.2
64
62.7
64.8
66.4
61.5
66.7
63.463.16363.5
61.262.2
63.562.863.964.7
63.563.464.1
65.7
62.5
72.3
64.663.663.7
61.5
67.5
65.6
63.5
62.1
71.5
66.1
64.2
69
66.6
72
64.5
68.1
62.5
68.1
62.5
55.3
57.5
60
5858.7
57.357.7
55.555.955
61.4
55.2
5756.7
59.2
61.8
54.753.95555.1
56.3
52.6
58.8
55.8
54.455.254.254
52.1
56.7
62.5
54.355.254.3
52
55.5
60.9
65.8
55.955.9
58.4
61.5
56
54.5
56.55656.2
58.4
55.955.3
74.3
55.15454.6
57
53.454.254.9
58.8
56.9
54.3
56.3
54.655.4
53.9
56
54.4
58.3
70
56.155.255
56.9
54.3
52
56.555.856.2
54.25554.7
53.3
5655.7
57.4
56.1
53.4
54.7
57.756.8
55.4
50.9
56.7
52.953.9
56.3
63
61.5
54.4
61.9
53.5
56.3
52.552.2
61
52.1
54.4
58.7
52
54.153.9
64.7
59
51.1
52.7
54.1
48.9
50.3
60.6
54.3
50.851.4
52.851.7
49.3
65.7
50.850.1
52.55251.9
48.4
51.6
53.8
48.949.149.149.448.448.8
51.4
52.8
51.2
62.3
56.2
54.6
50
54.5
56.2
59.5
50.8
55.3
58.2
53.8
52.5
49.248.5
50.9
52.751.750.6
58.7
50.750.6
48.449.450.3
51.6
54.4
5152
49
52.9
57.1
60.6
73.3
50
54.753.9
56.3
52.9
48.4
54.2
50.2
52.2
48
50.8
53.7
51.950.8
49.650.2
66.2
58.4
63.7
49.1
61.1
54.153
50.9
49.750.7
54.3
59.7
55.856.7
53.2
59.3
52.6
55.5
53.1
54.9
56.9
55.1
53.853.9
60.5
55.2
53.3
50.8
52.2
60.861.7
57.558.257.6
55.1
52.4
59.9
71.7
55.554.7
59
57.7
52.7
55.455.456.356.6
53.7
57.9
54.6
56
52.7
57.7
55.5
53.6
55.4
53.8
57
52.9
56.556.2
54.8
56.9
58.157.458
56.7
58.5
59.7
5857.356.9
61.8
60.1
58.3
56.255.6
63.2
59.9
58.5
65.2
59
56.857.257.7
61.862.3
61
57.5
61.1
59.2
61.1
57.4
60.2
61.561.6
60
62
64.5
72.8
65.4
63
60.4
63.8
60.760.859.9
63.1
61
58.9
63.2
61.1
58.9
61
69.8
62
60
64.9
73
61.360.3
65.4
62.763.6
66.6
70.5
66.6
60.8
63.462.6
64.3
66
69.4
65.3
63.6
76.5
63.9
61.9
65.6
63.563.5
60.4
76.2
62.3
67.1
61.1
65.766
63.4
69.1
65.3
62.862.7
72.1
60.6
61.8
63.5
65.165.364.9
63.5
66.2
62.1
65.4
61.9
63.3
71.4
63.3
71.4
63.163.563
55.656.7
58.1
56.5
54.5
56.8
60.8
57.356.556.6
54.5
55.8
60.761.3
58.357.5
54.855.9
54.1
57.8
53.8
55.956.8
55.455.254.255.155.656.1
54.5
57.1
55.8
59.5
54.6
56.6
63
56.255.2
54
70.2
54.6
55.855.154.7
53.354.3
55.7
53.2
59.5
52
54
56.1
53.5
55.7
51
58.8
5554.7
53.553.3
51.652.2
53.553.5
55.154.2
56.4
52.753.353.3
64.2
51.7
49.150.2
52.1
57.8
52
5454.3
63.4
56.4
50.8
54.4
56
52.552.8
51.1
56.555.5
5453
61.8
60.2
52.4
56.2
62.462
52.4
54.3
59.2
53.853.7
55.9
57.556.456.3
49.1
53.2
50.4
53.6
74.4
53.4
55.1
52.5
54.1
59
57.8
56.1
54.4
60
55.8
53.254.1
52.952.8
59.2
52.152.3
54
51.250.9
53.6
65.6
52.5
55.7
54
51.8
54.253.754.454.954.2
62.2
58.7
54.655.255.555.555.8
56.455.4
57.6
60
5857.1
54.9
53.4
52.2
55.554.8
57.2
52.253.1
55.555
57.4
53.6
50.2
54.5
51.7
61
55
51.2
56.3
51.952.652.1
50.6
51.9
53.6
52.2
54.154
56.256.7
50.551.6
50.1
54
48.7
54
50.151.1
52.7
50.750.4
52.252.8
51.550.4
64.3
53
54.654
71.6
54.854.2
55.5
53.6
56.655.5
52.6
55.2
53.5
56.85656.9
52.5
54.355.3
59
55.755.655
56.2
54.4
61.6
57.2
52.8
57.7
53.6
59
53.3
54.5
5857.8
55.455.6
58.4
55.254.3
58.1
67.2
56.856.856.5
59.3
64.7
59.559.7
56.4
62.7
58.157.4
60.5
57.7
56
58.357.857.357.1
59.8
58
59.4
57.557.8
64.2
58.7
61.7
57.7
59.558.6
60.661.461.2
62.7
59.6
61.7
59.759.5
63.2
60.2
62.5
59.2
57.9
61.962.2
60.4
58.9
60.760.6
65
62
60.361.160.459.3
65.5
61.962.7
70.3
60.2
61.4
63.6
60.6
65.165.9
63.26464.7
63.362.5
60.8
63.262.863.6
61.9
66.3
61.7
66.866.1
62.8
74.5
62.462.76363.764.4
66.4
63.762.762.963.363.163.4
63.9
67.5
64.5
65.8
69.2
63
61.8
71.8
68.2
66.3
63.2
69.6
64.464.1
62.362.7
61.4
64.2
65.866.8
64.7
66.8
64.7
58.1
56.557.257.957.8
59.4
56.7
58.4
53.6
55.7
57.3
54.1
57.1
54.855.755.3
58
59.2
52.852.2
61.1
56.9
55.1
56.9
58.2
59.5
55.8
57.657.4
58.6
56.4
61
58.5
57.357.9
60.6
56.557.1
55.856.8
64.363.6
56.3
58.9
55.455.1
56.3
54.9
57
54.6
56.3
57.6
53.153.5
55.8
54.554.2
52.9
51.7
53.3
57.1
67.6
55.7
53.7
55.3
60.1
54
59
57.3
54.1
55.9
53.954.853.7
56.855.856.356.3
52.5
54.153.2
60.5
62
58.9
54.3
56.3
58.4
57.157.1
53.7
58.4
56.256.4
62.7
55.7
58
55.4
56.956.9
55.2
59.9
58.258.758.1
56.1
61.9
58.3
53.5
55.2
60.5
55.4
53.1
55.3
51.4
54.5
56.1
71
53.2
54.655.656.1
54.6
55.9
52.853.854.3
51.6
56.3
54.6
53
54.7
56.4
53.9
61.3
67.2
63.8
62.3
54.8
62.2
54.4
52.9
59.1
57.857.9
55.155.555.154.1
51
54.9
50.9
58.457.657.8
55.4
5756.355.856.855.9
53.253.253.1
55.1
52.451.5
54.454.655.1
58.1
52
54.4
52.451.551.4
52.9
5757.157.4
52.9
54.2
50.8
61.1
57.4
50.650.251.1
56.8
52.6
55.4
49.9
55.7
51
57.8
51
53.9
50.3
55.2
51.5
52.7
56.7
54.7
53
51.652.451.7
69.5
51.6
54.4
56.2
51.8
54.955.6
56.857.5
52.1
59.6
54.954.554.8
57.356.9
55.154.655.156.1
57.5
53
56.8
54.655
51.6
54.9
56.3
57.5
56.1
74.6
54.153.4
58.5
53.3
55
5958.6
56.657
53.553.2
51.1
53
55.7
54.554.3
53.153.8
55.556.357.1
55.5
52
56.5
50.6
61.1
57.157.5
55.155.7
5352
59.1
56.5
54.6
57.357.658.1
56.4
62.7
58.957.957.2
53.3
54.6
55.9
57.5
55.2
60.9
58.858.7
59.9
57.3
58.558.659
54.8
58.2
61
62.5
59.5
58.1
63.1
53.8
60.7
57.1
60.9
59
57.8
62.362.1
57
58.758.759.760
62.1
56.156.9
59.459.8
61.862.4
58.6
61.1
59.1
63.4
60.3
64.2
59.9
61.6
58.3
61.9
60.760.2
64.1
59.3
61.660.8
63.1
65.6
60.9
66.7
62.3
59.2
63.964
61.9
60.361.1
63.5
59.1
64.2
62.5
59.258.8
60.7
65
59.6
73
62.5
58.4
62.5
58.458.9
61.8
58.4
59.6
58.258.858.4
66
67.5
59.159.6
60.860.1
55.9
59.5
61
59
57.857.7
61.260.1
5757.857.857.2
62.6
59.5
57.4
59.1
57.757.958.7
56.355.3
56.7
58.1
56.7
58.6
63.2
57.3
54.8
56.1
62.4
55
53.6
56.8
55.556.2
58
56.256.8
58.259
57.7
56.2
58.257.9
56.6
72.5
60.4
56.255.1
56.8
55.1
56.356.3
54.5
59.6
63.763.863.8
56.7
53.7
66.6
54.5
5756.4
55.1
58.2
54.3
60.2
55.8
57.8
54.3
55.6
58.859.159.2
57.4
55.454.3
56.456.255.155.5
53.2
54.455.354.7
58.3
64.8
57.1
55.456.355.9
57.958.6
67.3
63.964
59.1
56.7
54.9
57.2
63.8
55.8
57.1
55.855.9
58.957.8
59.4
58.1
61.2
57.157.7
55.3
57.5
56.1
57.957.1
58.4
64.6
59.8
56.457.5
58.959.3
57.958.6
60.4
57.156.655.755.1
57.45756.6
60
56.7
55.5
5857.8
55.9
5958.2
59.859
61.460.7
58.458.7
60.159.760.6
59.3
60.5
57
58.859.8
58.25857.858.2
60.4
62.8
54.953.9
55.155.6
57.157.6
55.8
57.257.657.857.357.256.2
58.5
56.9
58.2
56.8
62.1
59.4
57.657.25858.657.557.657.8
5757.6
59.1
63.4
58.6
57.3
55
75
62.9
59.3
57.957.858.3
60.6
58.557.5
60.6
58.1
56.3
57.557.5
56.3
58.357.558.157.157.1
59.7
56.9
59.7
57.9
62.5
67.2
63.362.4
53.2
54.4
53
62.7
57.358.2
55.6
61.6
56.6
59.158.6
54.255.155.855.655.2
59.959.5
56.957.157.4
54.955.555.6
57.3
54.754.354.754.1
56
58.959.9
58.75857.857.1
61.4
59.5
57.2
59.4
61.5
68.8
6463.7
6059.258.4
59.660.2
61.460.5
59.360.260.159.358.6
56.8
58.659
57.657.2585857.7
59.6
62.3
60.4
58.758.558.1
56
58.859.158.9
60.860.2
65.4
62.6
60.86161.860.961.661.6
62.963.762.963.962.862.462.762.462.1
60.7
59.360.1
67.3
61.8
65.8
64.3
61.662.262.1
60.761.461.361.9
63.163.9
65.9
70.1
61.8
63.9
62.161.8
63.863.163.864.3
62.7
67.368.467.368.4
45
50
55
60
65
70
75
80
85
90
95
12:00 AM12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/11/19 to 11/17/19 ‐Minute Intervals
B‐Mon B‐Tue B‐Wed B‐Thurs B‐Fri B‐Sat B‐Sun
Location B: National and CCP
45
50
55
60
65
70
75
80
dBA
Time
Barrio Logan Nighttime Noise - 11/11/19 to 11/17/19 - LOCATION B
59.358.5 58.4
59.3
62.0
67.8
59.9
61.2
57.5
60.7
61.8
67.1
56.9 57.2 57.257.8
60.8
65.165.9
58.159.0
60.2
62.0
66.3
58.657.9 57.9 57.9
59.6
65.9
59.3
60.661.4
59.0
65.8
63.5
59.059.6
56.5
68.0
59.7
62.4
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/18/19 to 11/24/19 ‐ Hourly Intervals
B‐Mon 11/18 B‐Tue 11/19 B‐Wed 11/20 B‐Thur 11/21 B‐Fri 11/22 B‐Sat 11/23 B‐Sun 11/24
Location B: National and CCP
57.4
55.7
57.156.8
59.3
62.4
56.3
58.3
55.856.15757.457.7
59.2
61.3
56.8
5857
58.457.9
61.562.1
60.6
62
58.2
60.2
57.95858.658.2
59.459.359
61.6
59.1
60.9
56.5
65.3
61.3
58.3
57
60.4
64.4
59.95959.9
57.558.6
59.859.6
55.7
57.157.5
55.8
57.6
59.958.959.458.557.457.156.9
53.7
55.855.556.4
60.461
56.657.157.958.257.657.6
55.7
57.8
59.7
57.257.7
53.6
5655.155.255.755.355.255.6
58.3
56.457.2
59.358.75958.358.257.857.557.2
58.1
55.155.256.256.256.956.6
58.3
56.257.3
55.6
57.357.157.8
69.6
57.1
58.9
60.8
58.7
60.3
58.9
57.758.759.6
58.3
60.7
58.557.9
60.7
5958.859.5
56.856.8575858.45859.158.1
55.5
56.856.756.257.2
59.5
58.158.2
59.458.657.958.8
64
60.4
58.5
56.6
58.558.1
59.3
58
54.7
59.258.3
56.5
58.4
57.1
55.4
61.2
56.556.756
54.6
5655.5
63.9
58.1
53.6
55.154.754.6
56
58
54.553.454.254.1
55.3
5757
54.5
57.256.257
55.8
59.259
56.1
58.6
60.359.6
58.357.957.4
59.359.5
58.158.9
55.6
57.8
59.1
57.7
59.1
57.2
65.2
57.8
56.156.755.7
57.1
59.458.7
57
59.660.7
57.7
58.959.458.8
5657.157.9
59.6
57.4
59.8
57.1
59
71
58.3
54.2
57.557.3
53
54.2
57.7
55.8
58.9
60.5
56.6
58.658.457.4
58.6
61.1
58.3
61.5
56.9
58.958.4
62.4
57.6
64.3
59.1
57.8
60.760
58.4
60.4
58.8
61.260.560.4
72.9
60.460.759.959.961
63.1
59.959.5
68.2
60.2
61.460.560.360.9
63.2
61.362.262
67.6
60.659.9
62.162.4
61.1
58.8
60.160.960.761.462.1
60.960.461.361.6
72.9
65.1
60.660.960.6
66
62.4
65.7
62.962.361.962.8
65.164.1
61.3
68.5
64
65.365.5
64.3
66.266.565.4
64.2
67.5
65.365.664.965.76565.766.5
64.7
68.367.9
66.667.3
69.168.5
72.9
66.467.3
66.1
64.965.9
70.4
80.6
69.9
65.965.36665.165.3
66.7
63.864.4
61.4
68.2
57.756.657.5
55.856.257.157.258.3
60.1
55.8
57.356.8
64.5
56.956.357.4
55.656.4
63.8
65.7
56.7
5554.8
57.7
53.8
69.5
55.6
62.8
56.4
54.2
58.45858.6
57.4
60.3
57.457.6
63.7
57.9
55.3
57.7
60.4
56.5
54.7
57.1
55.3
58
56.6
61.5
53.9
60.4
57.256.6
63.5
55.5
57.5
55.5
52.9
55.6
58
52.252.8
75.6
61.5
53.1
55
57.8
53.2
51.7
66.3
53.353.652.6
53.8
52.5
50.350.851.152.252.151.652.7
56.3
51.8
53.7
55.6
51.8
61.9
71.2
58.6
52.3
54.5
57.857.9
53.5
56
60.260.9
56.455.5
61.6
59.3
60.8
54.3
60.5
57.457.8
53.1
58.9
56.456.4
54.755.5
57.6
5555.454.753.9
51.8
57.7
56
54.8
53.354.3
56.4
54.754.754.6
58.4
55.955.1
58.3
54.6
56.456
54.6
56.5
54.8
53.353.5
55.1
52.452.653.552.6
51.2
52.852.7
55.456.5
54.9
59.9
61.3
58.9
57.3
55.7
57.756.8
59.5
57
55.4
58.257.9
52.3
57.9
67.8
60.7
62.9
56.2
52.3
55.7
50.551.6
49.7
62.3
60.7
52.5
57.4
52
53.4
55.6
49.3
54.453.7
67.4
54.8
53.2
54.6
52.3
55.8
53.6
56.2
51
66.8
54.554.3
55.8
57.256.6
6564
58.1
70.8
56.556.5
60.5
56.657.556.8
59.258.658.758.257.7
59.759.7
57
54.6
56.1
58.657.957.8
59
63.2
57.2
67.2
59.359.7
65.1
57.9
59.860.7
61.961.7
60.459.559.96059.559.3
57.557.7
59.4
56.4
63.6
58.459.559.2
5858.9
60.1
57.657.758
60.1
57.9
66.1
60.2
58.8
63.3
67.6
63.963.1
60.160.6
59.160.160.9
68.7
60.5
64.8
59.2
60.7
59.4
60.9
59.1
60.560.561.1
63.4
58.9
60.460.1
61.7
59.658.7
65.6
62.1
59.9
61.861.961.1
63.2
65.9
63.563.4
58.6
63
61.4
63.262.6
58.4
63.4
61.9
64.7
63.464.565.4
63.4
64.8
70.5
61.362.1
63.5
62.3
64.6
66.666.2
62.862.8
66.766.6
70.1
62.7
64.2
62.6
64.164.265.2
69.8
66.267.3
74.4
66
70
68.4
6463
74.2
6664.9
75.4
66.7
68.267.766.8
64.7
71.5
66.7
65.3
63.763.7
65.265.664.564.7
68.2
65.6
63
65.7
54.255
51.752.6
55.9
52.3
59.559.6
52.7
54.253.3
57.5
53.8
51.3
55.454.454.7
55.9
57.5
59.3
57.5
56.356.3
53.353.2
57.2
55.5
53.354.4
52.853.2
54.5
57.9
55.355.655.354.455.2
62.663.163.4
53.7
56.6
53.754.855.155
61.3
64.1
55.756.6
55.3
53.953
55.1
56.9
52.6
55.7
54.353.8
62.161.6
59.3
53.453.8
57.1
54.4
58.7
55.3
60
53.252.952.953.5
56.9
55.7
52.452.7
55.155.354.3
55.855.3
53.1
51.5
53.152.953.252.953.8
51.3
54.2
58.8
5353.352.8
50.451.5
64.7
57.1
61.3
54.1
52.2
56.3
64.2
55.9
54.1
56.7
55.454.5
58.6
57.15756.3
52.5
55.2
65.7
53.153.4
55.5
53.1
51.6
53.8
58.3
56.4
53.7
50.650.2
54.2
50.7
52.252.752.1
50.5
53.7
51.6
55.7
57
53.8
52.451.452.452.9
51.2
55.6
57.4
52.3
55.5
52.6
54.9
53.7
59
53.153.5
5857.1
55.956.7
58.8
56.2
52.4
61.6
52.6
54
64
55.3
60.3
5252.7
69.5
51.2
56.3
54.854.353.654.4
53.1
60.7
52.8
58.4
60.7
57.5
51.2
53.652.8
51.6
55.354.655.3
53.2
51.75253
50.1
535252.752.5
55.454.9
53.254.355.1
56.4
60.3
67.3
62.4
56.2
54.2
56.4
53
56.3
54.454.6
60
55.855.2
56.656.655.5
57.9
55.456.557.6
53.454
55.6
67.6
56
57.6
55.3
50.9
63.9
55
52.1
53.7
58.257.1
54.2
59.6
57.5
56.1
53
57.9
55.1
56.3
52.8
57.6
61.9
56.2
53.2
55.8
67.6
55.6
53.7
56.3
53.5
58.2
55.5
61.6
54.7
61
54.5
57.1
55.1
59.1
57.6
55.454.7
59.4
56.3
57.958
60.5
57.658.3
59.6
70
59
57.857.2
59.959.1
65.3
60.4
66.5
61.1
59.5
61.862.3
61.160.661.262.3
67.8
60.661
62.8
6160.4
62.2
65.6
62.5
60.6
62.7
60.2
5858.2
60.5
65.5
61.4
64.6
61.561
62.5
63.8
6262.962.1
65.5
64.3
62.1
67.8
64.364.9
66.8
62.763.463.762.7
65.465.3
63.463.4
64.664.765.76666
67.267.2
62.162.3
64.4
67.4
62.8
65.5
64.1
62.86363.2
73.1
65
62.5
65
69
65.9
71.7
63.9
68.1
62.5
53.152.2
55.6
52.8
55.555.4
59.7
53.753.7
56.2
58.557.4
5656.3
58.9
57.4
62.7
67.167.1
70
777776.4
74.8
64.364.8
66.3
61.662.462.6
59.5
57.5
62.6
55.9
53.6
56.1
53.3
55.6
57.3
63.3
55.2
56.9
54.954.5
53.3
51.651.3
58.4
51
56.2
52.5
58.2
56.1
57.5
51.251.551.750.951.4
61.2
52.7
51.4
52.853.953.7
57.9
50.9
59.1
57.9
55.155.6
52.552.3
55.3
53.4
50.551.3
56.7
49.148.4
53.553
55.5
49.8
53.5
51.651.9
55
57.6
54.3
58.358.9
61.362.4
58.7
61.2
66.7
54.6
60
53.6
55.1
57.7
60.6
58.9
51.7
53.153.9
58.7
49.1
53.2
49.9
57.5
66.9
51.1
53.2
55.7
57
50.6
66
64
53.8
51.3
47.9
57.5
67.4
53
54.3
50.751.7
57.8
49.850.5
55.8
51.851.251.750.7
57.9
53.5
56.2
51.9
55.6
50.3
56.8
58.1
50.8
57.7
52.3
54.3
57.8
52.6
51.3
57.4
58.758.3
52.5
59.3
67.8
51.2
54.4
56.1
52.6
56.856.1
54.755.4
52.1
58.357.556.5
54.5
72.3
51.5
55.9
50
53.853
58.4
52
60.3
58.157.2
54.6
52.7
54.453.8
52.152.8
54.9
56.155.556.5
58.5
53.6
57.6
56.1
50.4
54.9
56.2
52.2
59.4
58.157.3
55.2
57.4
59.3
55.5
59
61.4
68.8
62.1
60.461.460.661.261.6
5959.4
64.5
55.3
60.7
56.2
59.5
57.958.2
53.3
55.8
60.361
67.267.6
54
59.9
58
59.4
60.6
63.4
65.1
63.1
56.8
58.658
55.9
59.760.5
57.857.4
59.3
57.256.9
58.1
55.7
58.358.7
57
58.3
55.2
64.2
59.960.159.960.3
58.4
61
54.7
57.2
59
56.2
62.3
56.5
58.6
60.4
58.2
61.262.2
57.358
61.361.6
62.9
60.860
69.6
61.4
71.9
63.6
62.4
59.8
63.1
60.6
62.662.2
65.865.1
63.9
60.7
65.466
60.6
62.361.8
63.5
61.56262.9
61.160.1
62.5
66.4
64.2
67.9
64.864.4
62.9
64.264.665.2
63.9
62.463.2
68.267.5
72.771.6
68.9
67.567.167.666.8
62.4
66.1
69.1
67.6
65.9
62.8
67.7
64.4
67.2
64.5
65.965.565.5
61.4
68.4
66.565.566.4
64.364.765.564.564.5
67.5
71.8
65.865.364.3
66.967.9
63.3
71.4
53.4
56.7
54.455.1
56.8
55.456.355.6
58.958
53.8
58.7
62.7
57.9
5454
58.8
65.8
55.554.7
57.8
52.3
54.4
5655.255.155.1
58
52.4
50.9
53.8
58.3
56.556.8
60.261.3
62.561.8
57.9
54.755.454.5
57.7
70.8
54.4
56.7
53
57.1
52.4
56.4
53.2
57
54.5
52.9
56.85756.3
52
54
55.4
51.7
53.353.152.8
58.3
5252.3
54.8
52.7
56.3
52.1
57.6
55.6
52.751.9
50.5
53.253.9
5251.15252.752.8
54.1
50.9
53.3
51.7
54.553.754.654.455.255.3
58.558.5
54.3
55.7
59.4
58.25857.1
65
55.554.655.1
53.6
55
58.9
57.2
55.8
71.8
53.8
55.755.8
52.8
55.4
53.2
5656.2
55
53.1
55.555.3
62.461.4
55.154.854
58.358.358.4
56.256
53.7
56.6
53.6
56.6
53.353.5
60.1
51.8
59.7
62.3
60.3
68.6
55.9
52.6
55.154.3
56.657.4
54.3
57.657.8
59.658.9
56.2
59.2
52.1
55.9
63.1
55.3
53.953.9
56.5
53.3
51
53.9
55.254.5
57.9
54.4
57.1
53.6
5655
53.8
57.457.9
53.9
57.1
53.752.651.752.8
54.8
52.4
56.3
53.453.4
59.6
55.8
54.3
59.8
54.454.454.554.353.4
69.1
57.9
52.3
54.954.655.6
5454.3
5353.754.2
60.6
55.156
63.5
51.5
55.756.655.9
54.2
57.5
59.3
55.556.156.3
58.658.357.457.9
56
58.358
64.1
56.3
57.758.3
55.8
59.3
56.757.5
56.256.5
59.9
55.956.857.357.1
61.4
57.6
56.256.455.856.4
62.8
54.9
57.557
58.7
57.1
58.6
55.9
59.5
62.5
60.1
56.857.5
59.5
57.1
58.6
57.157.156.7
60.2
61.4
59.4
56.5
58.4
59.658.958.2
59.6
57.5
59.9
58.1
60.7
63.3
59.159.859
60.4
62.2
60.459.860.5
61.9
65
61.461.1
62.461.661.8
59.159.6
64.6
59.6
65.4
61.460.8
63.263.863.9
67
60.561.662.56363.5
61.962.3
64.3
60.6
62.3
63.764.6
66.3
63.86463.163.7
61.7
66.5
63.5
66.3
68
62.3
64.263.964.8
67.4
62.4
67.9
65.866.367
76.6
62.9
73.7
62.263.1
66.265.765.2
62.2
64.1
68.5
65.8
67.1
63.763.8
61.4
66.8
64.7
61.4
57.958.4
60.6
61.9
58.258.9
56.8
58.5
55.7
57.7
59.158.1
56.7
59.6
58.2
60.9
58.8
56.756.2
60.4
57.357.9
61.962.2
60.6
59.1
57.156.7
5959.5
56.757.156.457
60.1
55.7
60.760.6
58.6
61.1
57.7
59.1
57.7
69.5
57.6
59.2
56.757.658.4
55.957
59.2
55.154.955.256.256.357.156.456.757.3
59.6
63.563.8
71.6
59.5
56.6
58.8
57.156.9
55.5
57.7
56.5
57.858.7
57.5
59.7
5857.5
58.7
57.557.2
58.4595858.259.159.2
61.1
59.759.76060.4
61.8
59.7
63.663.2
60.2
64.5
59.859.458.659.5
58
61.4
59.3
64
62
59.5
57.458.2
56.7
58.5
55.755.1
61.9
53.5
5656.855.7
54.3
5656.555.7
57.4
55.1
60.3
55.5
66.2
71.5
54.55554.4
58.3
72.5
64.8
54.954.5
55.7
62.8
58.858.9
60.5
63.4
55.3
56.6
59.8
56.7
60.3
58.459.560
56.2
70.2
55.856.2
58.157.457.7
55.556.156.655.956.7
58.157.2
58.7
55.3
57.1
55.1
57.156.857.4
58.859.7
56.65757.256.3
54.754
57.1
53.9
58.6
55.855.456.4
60
55.4
58.4
55.556.2
54.754.154.254.754.15453.353.953.152
55.8
54.254.1
55.4
5453.9
55.9
52.6
57.256.1
53.953.8
56.156.256.557.2
59.3
57.1
58.4
55.3
59.9
64.3
55.3
57.757.4
71
55.7
58.858.3
55.254.7
56
58
59.5
63.563.963.3
62.1
58.558.2
57
54.6
5857.356.2
60.4
55.5
57.9
55.456
57.857.556.956
60.5
56.2
58.7
60.6
57.1
59.4
56.6
66.4
81.6
57.8
59.1
60.3
58.7
60.3
56
58.8
61.7
58.758.959.759.7
61.460.460.76161.560.960.7
62.4
60.6
72.2
64.663.5
6261.5
63.8
61.461.661.862.2
67
61.162.262.161.660.6
61.9
60.261.260.9
62.462.7
64.7
61.962.561.8
60.5
63.6
61.462.4
74
61.4
62.861.8
63.5
60.9
62.461.9
63.1
61.361.8616161.161.860.760.1
64.2
62.962.461.6
63.562.6
61.1
62.9
65.6
63.9
65.8
6262.162
65.1
63.8
62.261.3
62.9
64.5
61.360.4
69
58.1
59.3
62.5
58.4
55.6
58.5
63.1
55.9
59.6
61.4
55.9
59.2
5555
58.657.858.658.158.8
61.4
58.859.260.3
57.5
58.959.7
57.958.558.759.158.8
57.357.557.757.5
56.1
59.6
62.6
63.964.2
62.4
60.359.5
62.761.8
58.558.258.257.656.857
60.3
56.3
53.952.8
56.4
55.154
55.456.1
54.4
56.15555.254.1
56.857.6
56.155.456.4
55.2
56.756.8
58
60
56.7
53.5
56.757.1
54.553.7
59.25959.5
62.4
56.7
55.556.4
58.3
55.8
57.5
54.6
56.7
63.963.764
58.5
54.854.5
65.8
56.3
60.5
71.8
61.7
52.4
53.6
55.755.55555.755
62.2
56.656.3
53.353.2
57.4
56
58
55.654.5
61.1
56.6
52.9
57.4
54.855.1
63.1
59.1
56.8
53.8
56.155.1
56.5
54.7
55.9
54.655.1
53.1
57.6
56.3
57.957.1
54.9
56.3
57.5
56.3
57.7
55.7
54.153.854.1
55.454.6
57.657.2
55.455.3
59.8
57.157.7
56.3
61.7
57
53.8
58.7
56.857.2
55.5
57.6
5655.654.5
56.9
55.5
53.4
56
52.653.152.5
54.4
53
54.353.753.454.3
56.856.7
53.3
54.8
57.7
53.252.5
54.2
57.4
54.753.653.85454.2
56.655.6
57.3
55.4
61.1
53.5
55.455.5
57.2
54.753.653.254.2
60.5
56.356.9
52.5
55.155.5
54
56.1
84.9
53.8
56.8
54.6
53.1
56.456.155.655.454.7
51
56.8
53.3
51.6
57.1
52
53.8
76.6
56.956.1
53.354.453.7
55.9
51.651.252.151.6
53.153
54.854.9
59.1
57.8
67.3
55.4
58.3
56.2
53.5
56.156.655.7
59
55.7
60
63.1
68.4
62.7
53.5
56.457.1
52.3
56.6
53.452.8
51.1
71.4
53.654.4
57.257.1
58.3
54.7
59.259.558.5
55.4
56.7
61.3
57.957
59.859.4
54.9
56.556.4
54.1
56.4
58.7
57.557.2
58.7
56.155.756.7
58.3
56.255.8
59.7
56.85756.4
58.4
59.6
62.6
60.2
62.5
57.958
60.3
58.758.158.358.558.458.7
5858.7
63.7
60.6
62.662
59.459.160.259.659.860.861.161.7
59.56060.9
57.5
62.3
60.1
55.9
62.6
59.960
61.961.2
59.4
61.9
58.759.2
61.3
66.1
63.762.6
75.5
62
67.368.4
45
50
55
60
65
70
75
80
85
90
95
12:00 AM12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/18/19 to 11/24/19 ‐Minute Intervals
B‐Mon B‐Tue B‐Wed B‐Thurs B‐Fri B‐Sat B‐Sun
Location B: National and CCP
45
50
55
60
65
70
75
80
dBA
Time
Barrio Logan Nighttime Noise - 11/18/19 to 11/24/19 - LOCATION B
55.0
58.2
60.1
61.9
59.8 59.760.5
59.2
61.0
59.460.5
58.5
57.3 57.7
59.3
60.9
59.759.2
59.8
73.7
68.2
56.4
68.4
57.1
65.6
62.9
60.3 60.6 60.7 61.1
65.3
63.7
62.4
60.659.9 60.0
58.0
55.2
51.7
52.8
54.6
49.4
47.1
49.9
53.8
58.7
64.7
57.0
65.4
57.458.3
57.1
58.459.4
58.6 58.6
60.4
61.9
58.0
56.5
55.1 55.2 55.1
52.4
54.355.0
54.0
56.5
59.5 59.4
68.4
56.055.0
64.2
59.6 59.6
61.760.7
62.1
60.9
62.6
59.1
57.6 57.6
59.7
56.056.6
53.5
48.948.0
49.0
52.0
57.2
66.7
72.9
63.4
67.0
55.755.0
55.5
52.0
59.4
57.656.6
53.052.5
51.252.0
72.6
57.056.1
55.5
51.4
54.353.2
54.5
55.8
70.1
57.2
53.2
51.8
53.7
57.056.5 56.6
57.4 57.457.8
58.3
56.9
58.659.7
61.462.4
61.2
12:00 AM
1:00 AM
2:00 AM
3:00 AM
4:00 AM
5:00 AM
6:00 AM
7:00 AM
8:00 AM
9:00 AM
10:00 AM
11:00 AM
12:00 PM
1:00 PM
2:00 PM
3:00 PM
4:00 PM
5:00 PM
6:00 PM
7:00 PM
8:00 PM
9:00 PM
10:00 PM
11:00 PM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐ Hourly Intervals
C‐Fri 10/25 C‐Sat 10/26 C‐Sun 10/27 C‐Mon 10/28 C‐Tue 10/29 C‐Wed 10/30 C‐Thurs 10/31
Location C: National and Evans
60.9
59.759.2
59.8
73.7
68.2
52.8
54.6
49.4
47.1
49.9
53.8
52.4
54.355.0
54.0
56.5
59.5
53.5
48.948.0
49.0
52.0
57.2
55.5
51.4
54.353.2
54.5
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐ Hourly Intervals
C‐Fri 10/25 C‐Sat 10/26 C‐Sun 10/27 C‐Mon 10/28 C‐Tue 10/29 C‐Wed 10/30 C‐Thurs 10/31
Location C: National and Evans
58.758.458.6
60
58.759.559.659.560.460.6
61.9
63.162.361.662.1
63.3
61.962.562.36261.561.461.3
62.5
60.360.761.260.561.162.16261.160.460.360.761.160.760.9
60.46161.861.761.661.9
6161.5
60.3
61.661.562.5
60.260.1596059.8
57.858.759.158.45958.959.560.159.559.959.259.858.759.258.558.559.258.759.458.358.359.258.158.1
59.9
58.7
61.2
6059.559.8
61
59.259.1
60.8
64.1
60.459.960.259.759.460.260.660.160.860.459.959.159.159.8
58.5
60.359.758.8
6060.760.559.5
61.3
60.160.6
58.159.15858.459.3
58
59.7
61
58.559.659.760.1
61.761.2
62.5
5959.960.260.2
61.4
58.658.458.85957.957.95958.558.858.658.458.758.858.558.7
57.558.5
60.3
58.758.759.8
57.8
60.3
58.459.558.658.95858.859.858.758.458.657.8
59.1
61.160.1
58.658.85958.758.657.55858.559.559.258.1
59.459.359.458.357.858.459.559.76061.160.26161.161.461.8
63.363
59.5
58.158.7
60.360.661.2
59.959.959.859.360.259.860.859.9
58.558.95959.759.458.6
60.6
58.7
60.4
58.958.659.158.95958.8
61.5
60.159.659.3
585858.759.358.358.658.759.559.160.159.5
61.1
59.858.8
60.159.259.159.4
61.160.861.2
62.7
59.158.959.3
62.261.662.461.5
58.5
61.2
62.9
60.7
63.2
60.260.1
61.360.759.7
62.5
59.1
62.5
63.7
60.4
66.5
61.9
63.2
61
59.559.159.3
81.6
84.5
86.4
84.1
79.1
81.7
61
58.6
60.761.861.5
62.762.8
60.8
65.4
59.360.259.959.5
61.1
81.8
60.160.460.1
75.3
62
65.765.2
58.358.559
73.9
59.1
60.359.5
66.1
60.9
59.6
61.4
77.5
59.559
60.359.3
60.6
59.259.559.5
78.9
58.7
60.960.7
57.2
58.958.158.858.4
59.6
58.158.958.759.7
58.357.758.458.258.458.3
57.458.357.657.758.657.657.456.656.7
53.8
51.751.351.651.151.5
53.2
50.650.75151.151.55151.4
52.752.7
5152.152.55352.352.8
51.451.451.451.751.351.15151.651.851.752.552.551.952.152.552.6
54.153.154.153.453.3
54.7
56.256.2
5554.354.15454.253.953.5
54.5
53.254.253.253.153.153.2
53.954.254.35555.656.4
55.155.655.755.355.155.15555.4
56.256.4
58.3
56.656.1
54.8
53.452.852.452.6
54.4545554.153.753.4
55.655.655.455.7
57.3
55.855.756.1
53.152.552.452.752.552.452.4
5352.652.352.652.852.753.85454.855.4
53.653.752.751.95251.752.1
52.95353.2
51.2
50
52
49.65049.148.648.949.649.249.348.348.8
50.3
47.9
5050.15049
51.451.1
56.1
48.3
51.6
55.9
47.248
52.8
46.547.546.445.646.746.145.14545.2
45.846.145.946.346.4
45.145.846.446
45.246.145.1
46.946.945.945.646.646.846.546.446
46.747.4
46.246.447.246.647.347.147.346.646.346.645.845.645.7
454646.946.54746.5
47.748.8
47.446.946.346.647.646.846.446.847.647.947.946.846.7
4848.548.347.64848.549.348.347.247.847.64848.84848.549.248.548.649
51.3
49.649.149.8
48.648.448
49.2
47.746.847.347.448.348.5
49.9
47.547.348.148.1
51.5
48.548.748.7
51.9
49
51.8
49.950.7
49.449.749.95049.24949.850.150.450.550.450
50.9
52.6
50.851.251.9
50.751.651.551.250.351.151.251.450.651.351.251.251.5
50.45150.450.9515150.8
51.5
54.1
52.153.253.15252.252.552.852.152.152.453.352.853.353.8
59.7
53.253.753.25454.453.953.553.553.7
52.652.552.952.853.6
55.4
57.2
55.554.954.15454.354.755.154.754.854.554.5
55.1
59.1
53.754.755.154.454.1
5352.452.75251.751.451.9
53.852.8
54.354.654.454.454.253.3
54.954.8
52.952.752.8
51.651.350.751.351.851.750.7
52.551.852.752.3
54.153.8
55.4
54.253.3
52.152.152.75251.4
52.6
50.550.650.250.750.15049.749.749.950.1
49.649.8
5251.551.651.151
52.253.3
61.8
59
54
56.1
52.552.852.553.353
51.750.951.9
54.9
53.652.6
56.7
52.953.5
50.750.6
51.9
53.353.953.753.953.6
52.752.152.2
54.255.154.153.854.654.454.353.954.1
52.952.251.7
54.6
59.8
52.552.452.952.553.35353.353.252.8
58.5
56
52.752.552.953.854.655.155.956.155.355.255.655.455.15554.6
55.4
57.2
55.956.155.956.155.455.255.355.555.555.455.2
55.955.455.7
57.1
60.9
59
55.954.85453.853.954.454.954.854.954.6
53.353.152.953.153.352.852.952.5
5252.452.251.951.652.251.952
55
52.152.253.153.8
52.252.653.153.452.551.750.750.95050.550.15050.750.550.651.6
54.9
50.650.951.351.451.251.552.552.952.151.552.452.753.652.552.9
55.8
54
56.25656.4
58.557.5
55.756.555.8
57.156.155.855.554.454.655.4
56.856.355.855.3
53.452.452.3
53.754.653.753.754.15454.1
52.451.35151.151.751.652.552.75352.8
54.7
53.154
55.255.955.9
58.1
61.361.9
5857.256.456.256.456.756.7
58.157.5
56.257.1
55.556.255.155.755.5
56.756.656.957.2
58.5
57.257.556.9
59.1
57.557.557.857.1
59.8
57.756.755.856.45756.756.857.9
59.15958.857.757.957.157.857.457.558.157.157.156.35756.556.1
57.6
59.460.161.1
58.859.558.658.158.1
61.8
59.659.258.959.158.758.557.958.558.758.457.6
59.1
57.658.558.158.357.75857.457.457.5
59.359
69.5
66.6
58.859.6
58.357.858.258.5
585858.8
54.7
53.553.653.252.852.853.4
50.950.450.250.450.7
48.648.548.4
49.7
4848.649.249.2
51.3
49.649.550.450.2
52.251.351.450.951.652.551.451.351.251.3
50.449.5
48.349.350
54.6
49.5
48.2
49.6
68.1
50.3
48.349.249.549.148.9
48.4
50.250.450.649.7
47.1
4949.250.350.250.4
53.5
55.9
50.750.350.750.15049.749.3
48.849.949.849
47.447.348.247.848.848.248.248.4
49
50.2
48.7
51.5
50.1
48.74847.347.247.247.3
4847.847.647.846.746.6
48.847.747.6
46.346.9
48.448.747.7
45.6
47.346.246.647.147.446.846.347.447.246.7
45.545.446.246.546.145.145.245.745.645.8
51.2
48.648.647.94948.2
4746.1
47.4
4645.645.345.7
47.4
46.145.646.645.645.2
51.6
56.8
50.5
47.5
48.7
47.446.7
48.7
45.545.14647
45.245.74646.346.446.647.546.94847.546.8
52.8
48.8
50.149.348.948.2
46.6
47.947.446.947.247.146.746.747.147.5
4747.8
49.248.948.248.648.848.8
47.7
46.146.146
47.247.947.5
45.845.5
46.846.746.1
47.446.547.646.746.5
4847.448.248.249.149.749.951
49.650.750.5
52.551.5
49.650
51.6
49.448.84950.1
48.447.948.449.349.9
51.151.5
50.149.448.847.8
49.249.4
51
49.750.2
52.3
50.750.950.950.850.650.250.450.5
53.553.9
51.5
53.6
51.751.9525251.5
50.1
52.351.65251.4
52.953.2
50.350.150.651.551.151.451.451.2
51.752.55251.350.850.851.250.851.251.451.6
52.1
54.555.355.6
57.957.15857.457.456.857.9
56.356.356.7
59.4
56.856.556.2
57.657.25858.258.459.159.459.159.5
60.1
57.9
59.559.558.958.7
57.256.155.5
58.3
56.957.858.759.1
60.759.759.8
56.9
54.253.9555554.75453.153.753.6
57.1
53.453.653.9
52.753.452.952.553.654.5
52.653.453.7
52.3
54.9
53.7
55.5
52.752.952.953.854.853.853.454.553.453.153.954.754.555.355.356.3
54.65454.755.356.155.6
62.1
57.256.256.6
54.755.156
54.855.955.155.655.4
58
63.5
59.3
57.556.7
55.354.654.754.1
55.454.4
51.35251.7
54.8
50.851.151.6
50.250.25050.349.750.15049.248.849.4
51.251.1
53.1
63.2
54
49.45050.951.551.850.850.650.451.350.549.8
51.1
48.9505049.9
48.749.750.550.451.152
50.649.850.550.350.550.951.2
50.350.651.1
48.7484949.45050.1
48.1
49.750.45048.948.148.247.2
45.9
47.1
45.945.746.147.2
48.848.548.349
54.7
47.646.946.7
48.8
53.3
46.3
49
46.1
53
45.845.146.246.146.7
4847.948.6
50.3
70.6
52.4
48.848.848.7
47.247.246.947.848.648.749.5
50.950.149.850.750.650.150.6
47.948.148
49.2
51.6
53.4
52.2
50.8
49.449.549.8
52.1
50.450.75050.4
51.85150.1
48.948.148
46.846.5
47.747.5
49.8
51.7
54.355.1
56.3
58.8
57.5
54.654.8
52.451.953
55.3
53.2
56.656.1
53.754.854.755.6
56.8
54.3
5352.752.353.353.253.9
51.5
50.1
48.5
49.9
52.451.851.952.352.952.6
54.554.8
56.656.55757.857.357
58.758.5
56.155.754.855.954.8
52.653.552.953.954.254.5
52.852.451.351.4525252.853.654.1
55.5
56.7
58.2
55.8
57.1
55.1
56.757.8
56.6
53.3
525251.450.5
52.452.351.250.55150.551.552.4
51.250.851.652.652.152.8
5453.253.653.3
54.5
55.8
58.357.95756.355.9
54.454
55.354.654.954.753.653.9
52.152.352.853.9
52.25353.853.9
55.2
56.7
55.3
54
55.955.155.3
57.4
56.255.155.255.455.4
57.656.757.557.5
60.359.9
56.356.457.2
55.654.654.854.554.554.8
60.7
56.3
54.453.754.753.854.453.853.454.553.5
45
50
55
60
65
70
75
80
85
90
95
12:00 AM 12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐Minute Intervals
C‐Fri 10/25 C‐Sat 10/26 C‐Sun 10/27 C‐Mon 10/28 C‐Tue 10/29 C‐Wed 10/30 C‐Thurs 10/31
Location C: National and Evans
45
50
55
60
65
70
75
80
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
dBA
Time
Barrio Logan Noise - 10/25/19 to 10/31/19 - Location C
53.3
50.2
54.0
49.850.5
51.8
54.5
48.9
47.4
49.4
52.2
55.1
49.448.7
47.9
49.4
53.5
56.0
54.7
53.2
48.6
46.9
51.0
55.0
50.9
48.6
50.2 50.3
54.7
56.2
50.4
48.8 49.1
47.5
48.7
51.751.3
54.4
55.7
58.1 58.5
60.1
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/11/19 to 11/17/19 ‐ Hourly Intervals
C‐Mon 11/11 C‐Tue 11/12 C‐Wed 11/13 C‐Thur 11/14 C‐Fri 11/15 C‐Sat 11/16 C‐Sun 11/17
Location C: National and Evans
51.152.152.552.952.552.7
53.653.4
51.351505050.150.150.5
51.251.251.351.451.1
52.3
50.150.951.352.351.8
53.253.153.152.752.752.752.8
54.4
52.452.653.753.954.255.154.755.154.9
56.855.7
57.8
61.7
58.1
52.8
54.153.453.3
49.450.250.449.850.3
48.948.749.248.748.8
51.951.8
61.4
52
49.649.549.649.950.249.5
50.851.3
5352
50.751.152.2
53.752.652.4
50.449.7
48.34848.747.647.8
46.346.746.347.247.2
49.7
48.148.2
46.547.146.145.645
46.847.446.747.7
45.6
47.446.346.747.647.247.748.648.548
46.347.1
48.948.148.548.147.947.5
4847.747.547.247.648.748.448.448
47.348.148.548.6
50
51.250.650.151.251.751.3
53.152.753.252.7
51.4
52.652.252.9
54.15555.454.854.7
52.553.452.753.1
54.454.755.8
65.6
60.8
55.956.355.955.654.755.154.554.153.253.4
51.3
49.9
51.2
49.850.849.849.2
47.648.347.348.3
46.745.946.146.847.548.548.948.848.849.2
50.95050.550.650.750.65150.9
51.3
50.150.650.450.450.5
5050.650.249.7
5150.649.949.749.750.651.150.45050.149.749.850.2
49.4
51.1
49.649.5
50.7
49.349.9
48.2
50
48.84949.25048.9
50.149.448.748.849.850.951.3
54
51.1
52.352.5
50.951.751.351.351.6
50.849.850.65050.449.649.149.650.451.4
50.150.7
53.253.9
51.2
49.2
50.650.4
49.148.9
51
49.3
4847.4
49.249.3
48
50.150.449.848.748.849
50
51.552.152.251.650.5
51.951.9
50.450.65151.1
49.648.849.650.149.850.651.450.650.651.751.852.652.652.453.2
50.450.4
51.751.851.15251.850.851.352.352.553.353.152.953.1
52.452.253.153.554.154.253.152.752.351.851.351.352.252.3
50.6
52.65250.951.651.350.950.550.550.550.5
51.851.851.652.753.652.553.152.351.9
53.453.253.253.2
54.5
53.253.9
52.652.653.153.652.752.352.553.65454.954.854.8
53.254.153.653.8
55.954.855.5
56.9
55.255.955.855.6
57.6
56.3
54.4
56.95655.556.257.3
56
57.757.157.256.8
55
53.252.4
49.349.350.249.65049.749.8
5352.452
49.449.850.7
49.5505049.750.150.1
49.650.150.450.149.649.14849
50.6
49.2494948.8484848.4
47.2
48.849.448.748.9
47.347.547.247.648.348.7
47.548.2
46.646.546.746.847.147.6
45.845.946.747.446.847.647.847.7
46.3
47.748.848.3
46.146.147.247
48.4
46.846.4
47.648.5
47.248.147.347.847.846.7
47.94847.947.947.447.54848.649.749.348.248.6
46.346.746.4
48.749.4
47.947.547.447.1
45.545.2
47.246.745.846.546.44746.447.146.8
48.2
45.94746.1
47.647.346.3
47.847.9
46.546.3
52.852
49.9
46.2
47.446.546.8
4646.446.346.846.746.747.34847.847.847.9
49.5
52.4
48.148.648.847.948.347.447.947.648.1
46.1
47.548.547.848.348.849.6
51.250.149.450.450.750.451.150.250
51.251.251.851.450.950.550.850.35150.351.1
49.849.949.850.149.449.949.448.949.149.149.85050.549.7
51
49.850.349.849.549.949.150.2
52.15251.4
52.6
51.151.15150.550.15151.552.2
53.8
52.252.952.653.4
5252.2
53.853.6
55.2
56.5
53.2
51.9
53.553.953.45453.553.153.45352.752.3
54.553.654.4
5352.953.954.854.1
52.252.452.5
54.854.1
56.6
55.154.454.955.355.5
5554.3
56.157.2
54.854.755.154.754.45554.655.455.354.555.456.555.454.654.254.154.854.3
56.3
54.554.655.255.4
57.2
5655.956.4
5555.255.455.254.954.95453.6
5556.155.154.854.855.9
54.4
55.9
54.4
48.447.846.7
48.34948.647.747.8
49.649.248.549.2
50.449.8
46.8
45.5
4747.948.5
5150.8
48.1
50.551.350.9
49.75050.249.4
47.9
49.948.8
51
4950
48.449.248.948.2
46.9
49.450.349.650.549.5505050.4
49.249.6
51
48.8
5050.850.749.649.349.749.148.548.648.448.4
49.2
47.648.4
50.9
49.45050.649.549.24948.949.349.249.2
46.845.9
47.248.3
46.647.1
49.4
47.647.2
50.3
51.9
49.9
48.748.449.14948.3
51.4
46.846.4
47.64847.74847.447.4
49.34949.248.748.348.448.4
47.147.647.847.8
49.249.24949.449
46
47.4
45.2
46.5
4848.3
45.745.9
47.646.6
45.145.646.3
47.9
49.7
51.251.3
49.249.249.249.8
48.347.347.347.546.847.6
48.9
47.147.5
50.8
49.2
47.747.7
49.1
47.147.248.3
4746.8
48.148.148.147.447.9
49.94948.347.7
46.4
47.7
46.447.147.8
46.1
47.347.84847.146.6
45.245.545.646.6
45.145.345.5
46.8
45.2
47.147.448.247.346.8
48.247.546.746.1
47.448.54949.348.849.3
48
49.4
47.948.5
47.247.4
49.749.249.34948.848.7
50.25048.94948.1
49.350.450.451.351.551.851.6
52.552.852.4
51.251.8
50.3
51.651.951.552.251.850.850.7
51.951.351.151.2
52.752
49.650.7
49.149.9
53.3
51.350.349.649.1
50.350.25151.250.350.45151.351.2
52.451.7
52.953.154.153.252.752.853.652.553.55453.4
54.95454.6
53.253.8
52.653.754.754.854.755.255.555.855.755.756
57.257.6
55.7
57.2
55.956.2
57.657.9
56.256.555.85554.95454.554.955.155.755.5
56.755.956.25756.957.8
61.5
57.658.257.4
55.556.457
55.155.354.4
56.155.4
57.456.3
52.9
54.2
55.655.455.4
56.857
55.154.454
5655.455.754.654.154.55554.9
58.257.4
54.154.455.154.554.253.254.253.252.8
51.851.551.351.650.751.252.152.352.851.8
53
51.6
53.6
57.6
63.9
51.151.7
50.550.350.149.549.750.751.6
50.349.650.5
52.8
50.950.951.551.551.652.552.751.6
52.8
56.6
54.1
5251.652.652.9
54.254.3
55.756.155.155.856.5
58.75958.858.257.757.356.557.557.256.857.257.5
56.2565656.357.156.255.256.257.1
58.5
56.8
55.4
575655.556.2
5555.1
53.652.752.452.8
51.650.650.149.648.949.248.6
49.8
47.647.648.447.4
49.44948.64949.349.949.148.549.249.4
48.1
46.5
48.4
46.2
47.548.5
45.2
46.6
48.1
46.847.4
46.246.5
48.2
47
49.849.9
46.6
47.8
50.75050.650.250.9
48.649.349.649.348.3
50.2
5251.2
52.5
50.9
52.2
50
53.3
51.1
48.8
50.249.6
47.2
48.647.84747.84847.547.3
46.647.4
46
47.247.346.347
454545.545.345.6
47.5
46.145.645.745.5
46.745.845.9
46.846.4
45.145
46.54645.846.346.9
45.246.2
4545.6
46.84647.146.146.646.445.945.6
47.646.846.647.446.946.946.747.548.547.847.847.148.148.248.1
50.550.3
48.447.746.947.948.448.448.448.5
49.649.4
48.248.34948.8
47.647.4
50.549.6
4848.148.247.647.346.547.347.9
49.2
47.346.8
48.74948.4
50.151.150.6
49.449.6
51.251.650.9
49.750.350.850.149.749.2
51.6
50.249.3
51.5
52.9
51.6
53.853.6
5252.75252.752.652.553.653.953.15251.5
53
54.754.253.452.652.1
53.653.153.753.553.25353
53.65454.253.653.252.853.2
53.9
55.755.555.955.756
57.9
56.1
57.7
54.9
56.255.154.5
56.256.6
55.255.254.655.5
57.6
55.654.954.5
55.855.255.855.455.4
5655.9
54.753.75454.855.7
54.4
55.6
56.9
55.3
54
55.754.7
5352.45352.4
50.950.251
53.452.452.552.753.7
52.351.351.650.7
51.951
49.8
51.6
50.350.6
53.8
52.251.4
50.249.950.7
49.4
51.5
49.15050.851.752.352
50.750.850.45150.151.250.549.748.7
5150.250.149.9
51.251.751.451.5
49.3
50.8
49.2
4848.448.247.548.549.349.949.849.449.7
51.6
53
57
49.248.3
49.8
47.247.347.44747.34746.146.7
48.548.64949.849.9
48.649.550.149.649.548.548
50
474847.4
45.9464746.447.546.647
45.1
46.747.3
48.547.446.946.946.445.9
47.446.746.246.847.747.346.546.347.448.4
46.847.748.4
55.3
49.749.8
46.947.647.548.6
46.646.946.4
47.646.747.347.4
48.8
47.147.648.5484948.848.248.749.650.349.850.3
48.948.449.250.350.7
53
60.3
55.354.9
49.349.249
47.548
49.548.848.8
50.249.448.348.547.847.848.2
50.6
48.2
49.8
48.648.2
4747.448.548.648.8
47.6
48.849.149.148.447.3
45.84545.94645.845.5
464745.9
47.646.747.247.6
49.4
4747
48.847.8
46.44646.446.145.846.7
49.3
50.5
48.7
50.850.8
49.1
52.2
49.950.350.9
49.6
52.352.853.3
50.3
51.9
55.3
53
51.6
53.753.3
58
54.855
53.852.851.9
53.553.153.354.153.2
55.9
52.2
50.6
53.854.854.9545554.3
51.952.452.6
53.853.2
51.7
53.1
54.9
53.353.553.352.7
51.5
53.153.6
52.25252.652.353.353.253.9
57
5252.6
55.1
52.6
55.955.254.1
55.5
56.7
55.355.855.756.356.655.7
58
56.5
595958.458.9
56.657.358.157.1
55.6
57.957.656.7
58.659.660
57.957.556.857.257.5
56.355.556.356.8
54.95656.2
58.1
56.7
55.3
54.1
56.156.6
57.8
56.457.5
60.5
56.1
58.3
53.453.653.2545453.9
55.454.754.854.454.4
55.154.7
53.2
54.453.6
55.8
53.453.452.651.9
55.6
52.553.352.553.353.753.4
52.853.453.453.553.2
53.752.6
5150.350.451
49.650.550.3
5351.951.8
50
51.251.450.5
48.448
49.949.548.4
51.6
48.348.948.54948.849.648.84949.248.648.6
50.2
48.8
50.550
48.4
49.650.4
47.946.847.7
45.745.8
47.7
49.549.649.649.148.948.148.949.7
48.149.149
47.4
45.745.9
47.247.5
46.146.447.446.745.6
49.2
51.852
48.449.148.147.948.347.648.4
46.9
45.446.546.647.648.3
50.2
48.248.249.349.849.149.149.249.449
48.548.249.148.247.948.448.849.348.447.548.54949.1
52
50.65150.250.250.2
51.852.1
50.350.450.550.5
4949.1494948.949.948.949.449.249.149.1
50.249.548.648.747.6
48.949.549.748.948.948.448.548.849.749.149.750.549.949.649.249.849.849.2
47.84848.148.849.548.948.648.3
49.849.849.549.6
48.347.847.647.7
46.5
47.946.946.445.845.84646.1
45.345.645.545.946.94645.646.146.245.245.145.5
46.446.846.54646.346.346.34646.245.9
46.547.347.6
48.8
47.347.64848.348.348.248.248.4
49.149
47.748.448.548.447.748.747.647.948.448.347.748.348.3
52.5
4848.147.948.9
46.447.246.747.146.346.2
47.546.546.946.646.4
45.746.74747.447.64747.447.447.247.447.748
48.748.24948.848.748.248.449.149.249.649.5
50.850.249.949.649.649.349.449.4
48.949.349.6505050.350.2
51.450.850
48.849.649.448.949.149.549.850.2
51.252.1
50.851.350.950.6
52.151.151.351.652
52.451.351.852.151.852.552.552.151.852
52.65352.852.652.35251.951.551.251.351.151.751.450.751.2
55.1
50.350.751.150.751.151.45151.151.651.8
53.3
52.151.651.9
50.551.150.751.15151.4
5251.452
51.551.751.15150.449.749.24949.649.550.650.150.749.649.650.249.85049.250.349.55049.950.249.750.250.750.651.150.95150.550.9
54
51.551.451.351.55150.650.351.251.650.951.551.550.450.651.150.950.951.551.552.152.853.753.8
55.355.7
54.254.453.552.652.353.253.352.652.85352.8
53.3
54.7
57.857.95757.456.556.357.358.358.4
56.155.154
52.351.852.1
54.655.3
52.551.451.4
52.952.952.552.352.4
54.554.254.455.154.853.8
52.352.7
53.954.454.453.6
5251.852.452.752.5
55.3
53.754.55554.553.553.554.455
56.657.457.9
55.655.255.155.855.554.754.955.454.755.355.155.555.3
53.2
54.754.154.454.553.553.252.9
51.7
54.754.955.4
56.957.656.656.2
57.657.4
56.256.4
60.260.859.9
57.556.656.7
55.1545352.753.453.152.853.2
54.4
55.855.85554.154.353.454.153.153.6
55.756.356.257.157.156.356.356.355.254.455.555.456.457.55857.657.3
59.360.260.6
59.4
57.9585959.460
61.360.459.959.960.7
59.560.2
58.7
56.757.457.557.156.7
58.759.359.759.959.158.557.6
58.957.957.457.958.457.657.557.35756.7
56.255.956.155.454.754.655
59.458.9
57.157.1
55.4
56.7
58.859.3
60.8
58.959.659.6
57.456.757.157
59.1
57.5
56
53.454.4
55.956.3
57.8
60.76161.561.761.7
60
58.357.957
58.7
61.361.461.661.261.661.2
58.157.45756.756.8
5655.955.955.4
57.8
55.956.657.6
59.659.158.25959.558.7
57.556.757.257.458
59.358.858.959
61.560.559.659.658.959.559.860.7
62.162.462.6
61.160.961.160.960.560.3
59.15858.657.557.757.458.2
59.559.960.160.860.159.159.459.958.959.458.8
61.861.261.561.661.561.762.161.9
62.561.862.561.8
45
50
55
60
65
70
75
80
85
90
95
12:00 AM 12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/11/19 to 11/17/19 ‐Minute Intervals
C‐Mon C‐Tue C‐Wed C‐Thurs C‐Fri C‐Sat C‐Sun
Location C: National and Evans
45
50
55
60
65
70
75
80
dBA
Time
Barrio Logan Nighttime Noise - 11/11/19 to 11/17/19 - LOCATION C
56.8
54.3 54.5
50.8
52.0
58.258.3
55.3
53.1
57.556.8
59.4
57.957.3 57.2 57.2
59.5
61.1
63.0
49.0
55.0
52.2
56.2
54.6
53.3
50.3 50.2
48.6
51.4
53.053.7
55.3
58.0 58.1 58.057.2
53.2
50.6
52.1
49.7
53.0
55.0
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/18/19 to 11/24/19 ‐ Hourly Intervals
C‐Mon 11/18 C‐Tue 11/19 C‐Wed 11/20 C‐Thur 11/21 C‐Fri 11/22 C‐Sat 11/23 C‐Sun 11/24
Location C: National and Evans
50.750.251.2
52.852.253.152.953.7
55.855.955.1
56.957.4
60.360.5
59.360.360.460.860.6
61.36262.162.1
58.457.757.7
56.4
54.4
56.356.356.656.1
53.9
55.654.855.455.554.95655.554.6
55.855.955.756.155.354.254.153.653
51.750.751.151.351
51.8
50.650.551.552.452.352.452.6
54.354.253.252.552.751.751.450.85150.149.950.750.449.749.4
51.651.15151.15151.4
51.852.353.253.753.953.753.5
52.752.452.352.652.552.453.45454.554.254.653.954.65556
57.656.756.156.156.85756.757.857.258.358.858.158.158.358
58.758.157.7
60.2
57.856.855.7
54.455
57.356.958
55.75655.155.1
56.5
57.95857.457.5
54.754.353.653.8
52.451.651.9
53.353.953.9
52.353.352.7
51.2
49.849.349.750.249.349.549.648.7
49.948.94948.949.949.748.847.948.54848.347.347.748.349.149.2
4848.2
49.550.150.95150.350.851.451.751.552.351.9
48
49.4
51.1
49.549.850.95051.15150.950.9
50.149.75049.4
50.650.149.9
51.451.6
5050.351.4
52.852.553.153.253.152.9
53.553.753.5
51.1
49.949.848.748.347.948.3
5050.349.249.249.95049.950.450.449.749.848.849.649.1
54.3
51.851.951.250.4
52.9
50.650.350.851.3
49.749.349.650.149.95050.1
51.9
50.550.850.851.45251.151.152.152.452.95251.452.152.152.2
53.554.554
52.351.851.552.553.653.753.853.853.553.8
53.253.453.253.453.953.852.952.552.652.5
53.6
54.955.2
56.855.955.155.4
56.8
58.258.357.857.356.755.655.455.855.9
54.355.35555.155.756.357.156.757.457.958.859.158.559.359.659.9
57.9
59.1
62.9
64.7
60.759.95959.758.959.358.658.859.5
61
59.459.759.1
60.8
58.458.558.657.957.2
50.550.5
56.355.956.15757.357.857.55757.45755.956.557.657.957.657.958.258.6
56.957.656.856.2
57.6
56.256.2
58.2
5756.756.956.957.157.8
6061.1
59.859.860.261.3
60.1606059.959.559.660.459.559.259.76059.559.2
59.8
58.657.9
55.555.3
57.257.357.458.559.258.8
57.5
55.655.6
57.157.5
5554.154.45453.854.2
55.455.555.456.156.155.8
57.2
59.158.5
56.455.755.254.8
57.2
60.9
53.853.852.7
51.250.85150.8
49.148.54848.247.4
49.3
52.8
58.8
55.8
57.1
55.8
53.853.753.953.353.753.453.553.854.154.554.754.9
55.455.556.1
57.6
54.955.554.954.655.354.654.35454.253.8
53.153
51.852.65251.951.551.251.951.951.7
53.253.7
51.651.751.4
53.453.953.653.354.1
55.7
54
52.553.152.451.851.551.651.4
52.652.151.750.850.951.7
54.5
52.652.151.450.951.251.752.351.751.55151.8
53.5
515151.952.852.652.352.5
53.554.453.453.352.7
53.954.855.455.755.956.657.7
69.7
59.659.9
56.85756.856.7
55.5
53.754.855.555.355.556.256.455.356.357.1
55.956.256.455.956.757.656.856.756.956.856.757
58.557.557.4
59.4
57.857.657.658.157.9
55.654.855.454.855.55656.656.355.755.55554.45554.754.554.855.856.956.856.456.1
56.656.756.356.355.8
57.1
58.357.457.758.357.356.556.357.157.557.957.458.2
56.7
58.559.5
57.858.2
5758.1
56.8
55.555.9
57.257.557.257.558.2
56.856.955.856.356.1575756.355.255.4
56.6
5858
59.358.959.1
57.9
59.159.659.458.7
60.3
59.1
60.860.161.261.561.461.161.1
59.860.660.559.95960.1
61.9
59.9
58.558.758.7
6058.958.358.358.758.558.258.158.458.158.458.6
59.659.760.460.660.7
59.259.45960.159.959.659.258.9
55.9
54.4
57.2
58.5
56.757.457.456.9
58.1
56.757
58.659.4
57.157.257.357.457.9
56.75756.2
58.7
60.1
64.1
58.157.457.357.157.757.958.258.3
57.858.358.558.157.658.557.757.958.95857.757.2
58.7
56.256.657.556.857
60.5
55.9
57.556.457.4
55.956.856.456.456.7
55.6
57.256.557.5
58.958.3
65.7
63.5
57.1
55.9
57.657.5
55.956.155.456.45656.756.356.756.3
57.858
56.556.156.255.456.156.356.255.155.756.555.955.156.155.555.2
56.456.656.356.755.856.656.156.456.656.3
57.156.3
57.9
56.556.657.558.45857.2
55.755.355.1
56.856.456.15756.3
58.1
56.356.556.356.256.7
5555.456.3
54.655.655.8
5756.2
57.656.5
62.8
60.3
55.955.5565656.2
54.854.854.954.654.2
55.455.255.1
59.3
55.9
57.4
56.156.756.45756.4
61.3
59.5
57.357.557.456.456.655.855.75655.855.4
56.857.157.1
60.4
63.3
56.4
59.8
57.557.158.257.2
55.856.556.356.75756.356.1
57.958.15758
56.456.255.555.956.856.557.156.5
59.2
60.4
57.356.956.856.155.255.756.556.457.4
56.256.857.557.357.557.35756.957.1
56.556.756
57.256.856.65757.156.156.957.557.457.4
58.65957.957.257.758.85857.857.556.6
55.356.155.956.756.656.355.8
57.157.156.956.557.6
56.2
57.657.457.157.857.857.257.256.856.9
57.557.957.858.158.6
59.8
61.962.8
57.2
58.558.758.15959.360.261
59.859.859.2
62.261.1
69.2
60.860.760.461.460.961.160.860.159.559.559.559.358.9
58.458.758.657.8
6059.359.560.559.659.859.960.761.360.96262.9
61.561.8
60.560.661.760.660.460.160.3
61.260.660.861.6
63.6
62.3
6161.561.2
62.7
61.260.960.560.5
61.962.76262.863.1
60.6
61.962.9
6161.361.26262.4
63.663
61.3
54.253.2
51.550.450.6
51.852.151515050.25050.9
53.4
50.851.150.5
52.452.6
55.9
61.961.3
72
74.9
68.368.4
73.473.9
64.3
58.8
57.5
56.1
54.6
56.5
54.553.952.852.1
50.850.15049.149.850.950.4
4949.4
51.451.2
48.647.647.246.747.24847.147.847.247.447.647.247
46.445.446.347.3
48.8
54.8
53.6
50.7
48.248.147.648.148.147.547.548.347.648.247.947.747.547.948.248.3
47.547.548.348.848.148.749.149.249.5
51.9
49.24949.7
47.747.447.5
48.747.948.748.548.148.849.149.249.1
48.648.848.348.949.450.249.249.850.850.950.751.151.251.3
50.451.251.551.350.6
49.4505049.550.2
48.648.848.148.748.748.548.8
4848.849
47.44847.6
48.849.849.950.350.849.949.65049.3
5049.149.549.349.2
50.150.150.451.352
54.4
52.8
68.1
63.7
58
52.852.752.252.351.551.651.5
64.4
58
51.551.4
49.849.149.449.95050.150.650.2
51.450.851.151.151.750.650.149.650.250.751.551.55151.5
5353.6
54.95554.854.95554.2
52.953.452.351.651.4
52.752.45352.351.8
5352.55252.352.352.452.5
51.951.551.451.85252.652.652.4
5352.853.152.552.652.852.152.452.551.451.551.551.451.651.250.8
5252.252.351.952.852.552.3
53.952.953.55353.153.253.452.953.553.452.853.552.852.352
53.253.953.45453.853.4
5554.454.75555.354.754.35455.1
57.2
63.4
56.3
60.5
69.1
56.4
57.8
56.156.25655.855.655.855.555.755.755.355.154.655.154.3
55.6
58.5
56.956.655.854.954.955.2
56.555.755.5
58.258.357.558.3
56.4
59
52.551.652.5
53.85454.1
51.952.751.751.751.9
5152
53.953.6
51.952.151.851.651.351.351.651.351.551.151.651.251.851.951.851.852.1
5352.4
57.3
5555.855.356.356.457.156.756.856.656.2
54.254.354.6
58.4
53.353.652.752.15353.552.453.252.653.553.553.153
51.45151.352.353.253.1
51.952.251.751.150.950.449.95050.650.450.250.6
51.151.251.450.8515150.149.649.849.750.55049.149.9
52.4
51.250.350.350.749.950.851.3
47.547.848
51.9
48.147.648.247.446.947.148.147.74847.647.5
48.448.248.748.8
47.6
48.848.948.3
49.949.650.349.7
51
49.649.14949.2
50
60.1
52.151.751.651.8515050.450.649.849.949.249.448.748.449.449.549.848.849.349.548.948.849.850.349.549.350.4
52.4
4948.449.348.7
52
49.248.648.248.348
48.5
53.853.1
51.3
58.9
46.847.447.247.647.747.647.547.9484848.34848.1
48.8
54.3
49.9
56.4
53.7
51.7
4848.248.248.448.948.948.448.848.147.847.34847.247.547.447
47.748.747.647.347.746.847.147.348.148.148.5
4849.149.24949.849.849.849.850
49.248.149.248.848.548.7
49.348.848.848.949.249.349.2
48.448.448.54948.848.547.848.648.548.348.348.348.5
49.148.44848.248.448.448.748.448.4
47.948.4
47.247.7
49.148.847.9
50.5
48.448.4
47.2
48.448.44847.2
48.847.9
49.7
48.1
49.549.249.650.350.750.850.5
51.150.951.451.9
53.2
51.451.451.250.951.651.751.551.4
51.952.251.551.951.750.851.3
57.1
51.951.7
5351.952.75253.152.252.15352.451.951.952.352.2
53.7
52.151.851.451.551.551.650.851.6
54.9
52.551.952.452.853.352.853.654.4
52.253.1
51.751.552.25252.751.6
52.852.5
53.752.6
54
52.652.252.752.652.4
53.853.752.752.652.852.6
53.352.852.552.452.5
54.1
52.752.55253
54.253.353.85353.85453.753.6
56.9
53.352.553.3
56.4
55.2
56.756.4
54.154.8
56.355.4
54.25454.1
55.555.354.354.554.354.6
56.156
54.855.155.154.454.254.4
52.853.753.5
5251.451.5
50.150.951.150.550.850.950.850.951.3
53.153.653.7
52.353.453.2
51.351.750.850.5
5253.152.352.452.151.2
52.652.453.553.953.853.252.95453.552.853.4
51.751.152.152.352.953.553.153.5
5353.153.654.354.353.753.553.654.254.254.75554.454.3
53.352.653.253.153.754.255.156
57.957.357.457.957.2
55.955.855.15655.755.3
58.858.157.6
55.9565756.857.757.457.657.2
57.757.257.858.558
60.860.359.260.3
58.4
57.2
58.959.159.159.259.460.160.761.261.3
60
57.65756.3
57.8
59.859.5
60.9
62.362.261.260.7
58.9
56.9
58.15957.9
56.355.6
57.656.656.355.755.855.6
54.3
52.4
50.5
52.5
50.750.150.251.150.8
52.2
50.451
52.251.150.65151.351.7
53.152.852.553.552.952.453.353.452.452.952.652.151.652.7
54.855.155.756.1
54.955.255.556.355.455.454.455.155.7
61.562.1
58.257.958.858.959.860.960.7
58.758.157.658.65958.757.856.857.8
59.7
61.3
59.3
57.957.25858.358.759.158.559.459.759.5
57.457.157.758.558.859.159.859.559.258.358.757.958.359.159.559.558.8
57.657.557.757.456.756.356.256.2
56.856.356.256.255.9
54.754.454.55454.1
55.755.456.556.557.2
58.859.660.659.859.659.96059.5
58.858.758.157.557.4
58.859.459.2
585756.456.556.5
5555.75656.256.957.357.158.1
59.8
5857.5
56.356.6
58.7
57.456.957.557
58.457.457.156.656.657.757.4
58.857.957.857.658.157.556.957.857.157.156.957.657.657.456.857.257.857.557.457.857.657.557.3
57.957.256.956.156.255.756.556.15655.5
51.452
53.4
525253
54.555.354.453.553.253.353.653.3
52.752.452.452.85250.950.651.3
52.952.251.8
53.8
55.256.156.4
54.7
53.4
5252.952.853.653.253.153.5
5354.153.153.853.753.253.752.953.65352.953.452.95251.550.9
52.252.352.35252.652.753.352.952.852.152.552.552.1
52.751.851.651.351.851.651.351.2
50.450.55050.149.649.648.849.549.448.648.448.548.548.1
48.648.448.448.6
46.947.246.54746.747.2
48.549.450.150.250.651
51.2
49.449.6
50.950.55049.9
51.2
52.852.6
50.9
52.152.451.4
53.153.653.253.2
5453.953.953.853.654.454.654.754.454
5554.654.653.654.354.453.753.7
5554.85555.2
53.1
51.951.752.352.752.451.651.8
50.250.350.850.249.849.549.249.549.248.948.8
48.147.947.447.447.547.547.847.747.8
48.648.749.249.348.549.148.748.349.3
5150.549.949.250.2
48.948.548.247.747.748.548.4
49.749.949.349
50.250.9
49.750
48
50.450.549.850.9
47.847.646.546.8
4847.248.1474747.7
48.9
50.350.950.650.550.951.150.750.4
49.749.149.349.750.150.2
50.851.451.151.251.250.850.45049.8
49.349.4
50.951.150.551.4
52.853.353.554.554.454.354.254.454.454.7
55.555.4
56.656.457.257.457.457.3
56.8
55.55554.453.753.152.152.552.352.1
53
51.7
49.748.748.247.748.248.448.248.848.449.449.349.248.948.9
49.64949.450.250.349.8
51.551.3
50.150.751.3
52.551.651.551.951.8
52.453.152.952.45352.852.652.352.7
51.851.951.151.5525252.752.952.6535353
53.353.253.955
56.757.457.4
56.15655.956.657.456.55655.1
53.552.853.554.154.855.555.454.954.955.4
53.85453.254.354.8
56.2
61.8
57
62.561.8
45
50
55
60
65
70
75
80
85
90
95
12:00 AM 12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/18/19 to 11/24/19 ‐Minute Intervals
C‐Mon C‐Tue C‐Wed C‐Thurs C‐Fri C‐Sat C‐Sun
Location C: National and Evans
45
50
55
60
65
70
75
80
dBA
Time
Barrio Logan Nighttime Noise - 11/18/19 to 11/24/19 - LOCATION C
64.4
67.366.3
67.3
68.8
71.872.9
75.0
73.9 73.772.9 72.7 72.4 72.2
73.6 73.5 73.673.1
69.768.7
70.3
67.9
69.2
67.666.5 66.1
65.0 64.965.7
68.767.9
69.5 69.4 69.6
70.8 70.871.3
73.4
71.0 71.170.6 70.9
70.069.5 69.2 68.9 68.9
68.168.467.4 67.5
65.8 66.266.8
67.3
69.0 68.769.7 69.4
70.5 70.7 70.7 71.270.3
71.070.2
69.568.8 68.6 68.5
66.4 66.0
63.7
61.761.2
62.4
68.0
72.0
73.6
75.474.9
72.872.2
72.9
71.5
73.173.6 74.0
75.174.3
71.4
68.5
67.166.4
67.6
65.464.4
67.5
65.064.0
68.8
72.4
73.6
75.8 75.4
73.072.3
73.372.5 72.7
73.674.4
75.0 74.9
72.4
68.5
67.4 67.4 67.0
65.0
66.3 66.6
64.8
62.9
69.0
72.573.1
75.5 75.1
73.5 73.172.5 72.2 71.9
73.574.0 74.3 74.8
71.1
67.866.8 66.7
67.5
65.164.5
66.6
63.2 63.4
66.9
71.972.9
75.775.1
72.5 72.6 72.4 72.4 72.873.4
74.7 74.7 74.6
70.8
68.2 68.5
66.6
68.9
67.2
12:00 AM
1:00 AM
2:00 AM
3:00 AM
4:00 AM
5:00 AM
6:00 AM
7:00 AM
8:00 AM
9:00 AM
10:00 AM
11:00 AM
12:00 PM
1:00 PM
2:00 PM
3:00 PM
4:00 PM
5:00 PM
6:00 PM
7:00 PM
8:00 PM
9:00 PM
10:00 PM
11:00 PM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐ Hourly Intervals
D‐Fri 10/25 D‐Sat 10/26 D‐Sun 10/27 D‐Mon 10/28 D‐Tue 10/29 D‐Wed 10/30 D‐Thurs 10/31
Location D: Harbor south of 75
64.4
67.366.3
67.3
68.8
71.8
66.5 66.165.0 64.9
65.7
68.768.467.4 67.5
65.8 66.266.8
63.7
61.761.2
62.4
68.0
72.0
64.4
67.5
65.064.0
68.8
72.4
66.3 66.6
64.8
62.9
69.0
72.5
64.5
66.6
63.2 63.4
66.9
71.9
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐ Hourly Intervals
D‐Fri 10/25 D‐Sat 10/26 D‐Sun 10/27 D‐Mon 10/28 D‐Tue 10/29 D‐Wed 10/30 D‐Thurs 10/31
Location D: Harbor south of 75
58.6
61.7
64.2
66.6
59.9
66.9
6565.7
61.9
64.4
60.8
67.668.4
60
58.557.9
63
65.4
67.7
61.5
63.5
59.2
65.566.3
62.6
60.6
67.8
66.4
69.6
62.2
65.8
59.560.6
62.2
59.4
62.5
59.3
64.4
60.3
67.8
66.6
64.2
65.6
63.2
60.359.258.7
64.165.1
60.5
67.2
59.7
61.3
6766.665.9
69.2
58.159.2
61.2
62.4
69.8
73.8
81.7
66.7
60.6
63.3
64.7
62.5
64
60.4
64.5
65.7
59.459
63.1
58.858.9
69
64.363.9
59.359.8
62.4
69.1
67.8
62.462.8
66.2
60.760.8
68.5
61.1
64.5
66.265.8
59.759.760.4
66.5
58.7
64.5
56.4
54.955.656
66.7
64.2
62.762.9
61.4
63.9
60.6
66.3
64.3
60.2
62.2
60.8
68.1
63.7
61.762.7
65.1
60.5
66.8
60.9
63.3
59.5
62.6
68.4
65.4
59.3
62.8
60.3
64.1
61.962.462.162.862.2
64.964.5
62.6
65.5
6362.1
64.8
61.461
63.8
69.3
63.8
65.465.3
71.3
75.876.3
61.462.16262.962.662.6
65.665.164.463.3
65.9
62.7
65.9
62.863.263.163.4
66.2
72
66
68.7
63.2
61.8
64.9
61.9
67
64.5
62.8
73.4
65.9
69.9
63.36463.563.3
65.7
69.5
62.8
67.8
64.9
70.2
64.4
71
73.4
68.4
63.764.664.464.565.2
66.567.667.3
62.863.562.462.6
76.2
63
64.3
66.8
65.3
70.9
65.464.6
62.862.763.162.663.3
64.9
69
65.764.7
68.4
63.1
65
71.8
67.7
63.2
66.4
69.5
61.9
64.663.664.3
67.9
63.7
65.8
67.4
71.8
69.5
67.6
66.4
68.8
73.2
71.4
65.165.4
67.766.8
69.5
67.9
69.3
63
67.568.1
69.670.1
68.869.868.9
66.7
63.7
69.4
65.5
70.4
66.6
71
65
70
66.3
68.2
64.663.5
67.4
71.8
69.8
6666.7
62
69.2
72.8
64.564.7
68.5
70.671.3
70.1
72.272.6
69.3
71.771.8
74.7
68.8
72.2
69.3
71
69
72.671.771.7
73.2
64.1
72.273.3
67.6
72.7
70.269.3
71.972.8
69.870.3
71.871.972.2
73.472.7
70.1
72.2
68.768.5
71.772.172.6
70
71.770.7
67.6
74
75.8
68.9
74.4
69.4
72.371.8
73.6
69.4
72
70.1
7372
70.770.3
72
74.2
70
76.3
69.3
71.9
70.5
74.8
62.4
67.8
65.6
60.6
65.7
68.3
65.1
66.366.867.7
70
67
65.8
63.1
69.8
63.1
66.8
63.4
68.4
65.7
62.8
68.1
64.6
60.460.7
70.770.770.270.6
60.6
66
64.8
71.1
63.2
61.1
63.1
59.9
63.1
64.9
6766.6
71.3
59.4
67.367.7
5958.9
63.763.1
65.5
71.5
62.3
64
65.8
58.5
69
66.7
61.6
65.3
63
65.8
6767.1
58.6
74.6
64.3
67.1
63.563.864
73
63.964
58.7
64.163.4
68.4
66.667.3
61.1
67.5
63.3
65.7
58.6
67.9
60.860.6
67.368.1
60.1
63
66.865.7
59.4
66.7
68.169
66.867.6
66.267.3
62.6
67.166.5
57.757.758.3
67.167.1
64.363.563.8
67.5
69.1
63.4
59.5
62.361.3
65.1
58.6
65.9
62.9
59.558.4
70.3
63.2
58
63.3
66.7
69
63.9
57.8
62.1
65.4
69.6
66.5
58
72.4
58.6
61.9
63.1
67.8
66.666.266.865.865.1
69.1
67.7
65.3
67.9
62.962.4
64
57.1
62.262.162.8
68.8
56.6
62.6
57.756.9
62
56.8
61.9
57
63.5
59.1
63
59.9
66.365.966.7
60.6
64.2
61.7
63
65.566.6
60.860.761.2
65.166.1
60
62.763
65.8
58.5
64.5
62.761.6
63
66.2
60.360.660.3
68.1
61.3
59.7
63.9
58.958.5
62.362.6
57.6
6565.2
73.5
64.4
62.4
57.6
65.265.8
61.1
59.8
74.1
57.7
73.4
59.2
5857.6
58.8
60.9
71.1
57.458.2
68.1
57.7
63.1
56.656.6
63.5
58.9
65.5
56.756.957.2
65
62.462.361.9
67.2
62.462.5
56.756.356.8
71.7
57.1
63
67
65.2
57.6
65.2
58.3
59.5
70.2
63
58.958.9
63.6
67.668.2
66.3
64.7
67.9
59.3
60.9
62.7
61
70.5
63
60.260.3
61.8
69.3
65.6
60.4
6867.5
69.869.6
63.3
65.8
68.4
64.565.1
68.5
65.2
68.6
64.364.8
60.9
63.8
6969
63.1
66.9
68.967.9
65.1
66.8
69.3
64.5
69.3
66.366.7
70.2
62.8
66
68.9
67.766.6
63.563.9
65.1
66.567.1
69.3
63.2
68.168.5
64.5
69.8
72.5
66.6
69.8
66.3
71.1
63.5
68.267.366.5
70
65.3
6767.267.7
69.4
73.7
69.1
70.870.77070.1
67.8
70.670.971.271.3
67.6
69.8
73
60.5
69.9
68.469.3
66.466.866
68.568
66.1
71.3
63.6
69.1
65
66.566.266.8
68.267.4
72.473.3
67.5
70.2
67.4
69.4
72
63.864.4
62.9
68.768.3
69.5
63.2
68.968.3
65.164
68.4
63.764.6
68.669.369.9
71.7
65.866.7
70
66.2
72.4
68.2
66.4
64.2
6967.9
64.3
69.4
70.8
67
68.7
66.566.567.6
65.4
68.3
64
72.1
65.2
63.2
66.967.3
65.565
70.7
65.5
70.7
66.9
62.4
65.1
69.5
66.365.2
62.963.1
64.7
66.6
67.9
65.3
69.768.667.9
63.1
69
63.2
65.266
68.46868.2
69.7
66.765.86665.9
67.9
64.3
70.4
67.56766.966.667.7
65.6
69.2
65.9
6968.1
70.470.6
65.5
68.7
63.7
69.5
66.5
70.7
62.7
6766.2
68.9
66.767.7
69
66.7
63.2
70.5
66.1
68.768.669
64.8
62.6
70.569.4
67.768.3
62.962.1
67.868.4
71.7
62.6
68.2
65.4
67.467.567.9
69.8
66.6
62.463
67.767.667.966.9
6968.7
63.8
68.6
67.1
65.7
67.4
64.865.3
66.9
62.5
69.9
65
67.667.6
69.2
67.366.3
68
63.8
67.6
69.8
62.963
66.9
64.2
67.7
69.1
67.2
63.7
68.8
66.4
63.9
62.7
64.7
67.3
64.3
62.4
64.8
66.6
62.9
67.466.766.9
62.8
67.9
65.2
68.8
62.8
67.2
64.2
62.862.7
64.6
67.967.1
65
66.3
62.262.26362.963.462.763.2
65
67.7
64.1
68.2
64.7
63.3
65.36666.266.866.4
63.662.863.262.6
65.6
71.6
66.6
68.7
64.7
63.3
65.2
62.463.564.1
70.9
63
6766.666.3
63.6
65.865.866.766.867.9
65.1
63
65.466.165.3
62.9
70.4
67.366.966.3
64.9
67.367.3
63.4
68.4
63.2
68.8
66.467
63.7
68.1
65.764.6
67.3
63.963.262.4
65.3
62.962.6
68.3
63.5
65.9
68.368.1
65.9
68.3
64.9
63
67.3
63.9
65.9
68.2
65.9
67.467.3
68.968.568.667.566.6
65.1
69.3
67.5
65.5
63.3
66.9
63.9
65.365.6
66.865.7
62.7
65.9
62.4
65.8
63.5
64.8
68.368.3
65.165.7
67.1
64.1
67.367.4
68.7
66
67.3
64.7
66.3
68.4
66.467
64.665.2
71
66.867.567.867
65.5
62.3
63.864.8
69.5
65.866
70.3
67.4
62.5
65.2
69.4
63.8
66.5
59.7
57.5
58.7
62.4
65.4
66.8
61.5
57.2
63.7
65.4
64.1
57.7
62.5
67.8
57.7
64.3
69.9
63.1
65.9
62.1
66.8
58.157.7
65.866.266.6
64.764.2
62.3
65.765.9
57.857.45857.8
69.2
60.6
68.3
64.9
58.4
64.6
58.45959.1
64.9
58.658
61.8
57.857.9
62.2
65.5
59.159.6
65
57.9
62
64.5
57.457.557.857.957.757.1
64.8
61.6
58.5
64.3
58.1
65.8
58.458.558.359.15958.55857.957.5
65.7
58.1
63.5
58.8
71
58.358.5
66.5
60.3
58.3
66.5
58.2
65.2
58.958.2
61.460.7
57.5
65.6
57.257.257.157.1
59.7
57.3
65.2
57.157.1
63.1
57.957.6
65.3
62.6
57.457.5
66
57.456.657.156.7
64.9
56.757.557.557.256.956.9
56.357.256.756.5
64.8
61.8
57.157.157.157.357.356.757.157.3
64.5
57
65.1
57.1
67.8
56.8
64.5
58.1
66.1
60.8
59.2
64.6
57
67.2
57.8
61.2
62.8
56.356.156.2
60
56.156.1
66.6
56.757.856.956.35656.4
61.66262.762.8
60.1
61.9
56.1
68
58.3
63.1
56.957
70.6
56.855.955.956.356.4
63.1
56.756.956.9
60.5
56.7
64.1
56.856.756.5
58.5
66
57.1
61.3
56.6
60
56.7
62.9
5756.857.1
62.7
61.1
66.8
56.956.9
62.1
56.7
65.6
66.8
58.5
66.1
64.3
57.257.756.957.258.1
61.4
63.4
65.7
61.5
57.8
63.262.8
69.7
68.3
57.6
62.9
65.1
59.8
67.5
70.3
60.4
66.8
62.5
58.9
67.6
65
68.1
71.5
67
61.7
68.5
63.264.365.1
62.2
68
65.9
68.969.2
65.965
68.2
63.4
68.2
64.2
58.5
6868.8
64.363.9
65.5
67.8
71.1
65.5
67.1
59.9
69.2
71.4
68.3
66.6
68.1
70.269.4
63.1
60.7
66.4
71.3
64
71.6
68.5
67
73.8
69.468.9
71.671.4
73.372.9
70.4
64
69.3
70.5
68.7
71.570.471.471.2
72.673.473.2
69.5
66.9
72.4
67.4
69.3
71.4
67.7
72.672.271.371.97172
73.5
69.470.3
71.9
67
71.4
73.4
72.272.3
75.3
64.6
72.772.27272.672
69.4
74.674.6
72.272.772.2
74.8
69.8
72.773.8
70.971.470.8
74.174.873.9
71.5
74.9
71.4
66.4
6867.9
71.6
70.4
64.1
58.4
67.966.865.9
60.1
58.6
64.9
58.959.3
68
59.9
58.658.6
62.4
58
64.164.1
61.9
57.6
69.4
65.3
67.967.6
63.2
67.8
65.3
62.9
58.3
60.661.1
58.758
61.1
58
61.862.4
57.557.757.9
63
70.9
57.6
63.9
58.959.2
57.6
62.5
57.357.4
59.2
61.8
66.6
57.8
60.2
67.8
81.4
76.8
69.1
72
58.157.957.957.457.5
59.3
57.957.857.958.158.358.459.1
68.7
64.4
67.7
58.2
65.8
63.2
57.557.757.6
61.8
71.1
61.3
57.3
60.1
57.457.5
63.3
57.758
61.4
5857.5
64.6
67.6
64.8
63.263.9
74.7
60.5
67
59.659.66059.3
63.5
59.8
61.4
59.859.559.459.4
66.3
59.359.1
61.9
65.5
62.6
59.159.559.259.159.259.3
63.9
62.5
6059.959.959.9
63.3
60.9
59.659.759.959.659.4
65.1
59.8
65.5
60.3
64.9
71
73.8
68.7
65.4
73
65.566
62.3
58.858.8
68.6
61
59.559.459.5
64.3
62.1
65.5
61.5
63.4
59.5
63.7
61
67.3
71.4
59.7
67.2
72
59.159.359
62.5
59.2
71.6
59.259.259.359.259.459.15959.5606060.861.2
59.5
65.5
69.7
62.5
59.459.259.259.15959.1
63.5
6059.1
64.8
5959.958.959.8
61.7
64.4
61.8
63.9
60.4
63.8
66.7
59.9
67.9
63.1
69.6
63.9
59.9
63.9
67.8
59.659.7
63.5
59.959.9
67.4
72.3
65.6
66.966.3
60.7
63.5
66.7
65.4
68.9
63.764.2
68
65.3
68.168.3
66.8
61.561.3
59.8
64
676665.9
61.4
67
68.268.8
70.6
61.1
64.2
60.660.9
64.864.7
62.6
64.8
70.5
78.2
65.6
71.9
65.4
68.3
65.265.165.364.2
68.5
65.8
70.569.6
72
69.9
62.2
68.9
71.3
70
66.7
71.772.873.5
71.9
69.6
71.270.8
68.869.3
66.8
70.5
65.5
69.6
71.8
70.3
72.7
69.1
71.9
74
79.5
64.8
73.8
69.869.8
72.6
7170.1
72.2
70.271.170.8
73.573.8
68.6
73.6
65.8
71.2
73.973.2
71.7
68.669.5
72.6
73.975
70.2
66.5
71.970.971.8
73.872.773.8
71.671.1
73.172.2
74.2
68.2
73.573.3
75.2
72.1
73.773.1
75.4
71.8
73.574
72.1
58.3
62.5
71.5
66.1
67.4
58.2
62.9
64.6
57.8
64
57.8
63.3
57.8
66.866.5
63.5
62.362.763.8
62.2
63.6
57.257.1
6262.4
64.9
61.8
57.9
68.8
57.3
61
57.557.7
67.7
57.757.557.4
70.7
79.7
63.6
66.6
63.9
57.1
68.3
60.1
57.357.7
62.1
66.3
69.2
58.2
59.6
67.3
58.7
65.6
63.463.7
62.3
66
68.8
70.7
80.6
60.3
58.7
64.1
62.8
66.5
57.4
61.2
57
62.9
57.9
63.1
67.5
61.3
58.1
70.3
59.7
58.158.757.6
71.4
58.759.660.4
63.9
60.4
59.1
68.9
63.864.363.9
58.3
70.1
64.3
60.7
69.4
67.1
57.7
63.5
57.858.4
57.1
67.6
57.9
69.969.4
56.4
61.162.2
57.7
62.6
57.957.556.9
58.358.1
61.8
67.6
58.1
56.857.3
67.3
59.659.1
60.3
72.1
58.558.7
61.360.3
57.156.957.658.357.5
63.9
62.1
67.5
68.7
57.35757.7
67.4
72.1
56.956.7
64.7
58.6
63.3
76
71
60.1
64
57.8
59.1
56.856.8
60.7
57.156.6
64.365.2
57.357.7
64.8
57
64.5
68.6
57.55857.457.457.357.5
63.9
61.3
65.6
60.6
70.1
59.158.657.758.7
68
62.4
67.1
69
5756.956.957.458.3
66
62.7
56.7
65.1
62.4
71.6
56.9
6364.1
65.365.8
56.757.657.157.157.257.4
61.8
57.357.457.357.5
61.7
57.657.757.557.6
60.360.3
61.562.3
60.659.5
58.15958.758.3
64
58.3
65.3
71.6
64.8
57.7
61.6
58.659.6
65.2
62.762.9
66.3
63.5
68.7
65.5
605958.6
60
72.7
58.358.2
74.5
67
68.367.5
69
70.9
69.6
67.1
65.9
69.169.3
64.7
69.7
64.1
71.1
74
65.9
68.167.2
70.1
64.3
66.266.8
59.2
69.9
61.6
67.5
73.6
69.370.270.4
72.5
68.1
71
65.965.8
71.1
68.2
70.669.6
59.9
70.1
76.3
71.7
66.3
68.667.9
70.6
68.8
73.272.4
67.5
73
69.7
73.6
71.7
70
67.867.9
75.9
71.4
70.169.6
73.5
67.8
71.9
75.5
68.6
70.670.6
72.2
69.8
72.973.3
71
73.8
71.9
70.3
71.8
75.274.7
71.6
72.972.3
67.768.7
74.8
72.773.7
71.471.8
74
71.4
7373.9
75.2
71.8
74.8
71.4
73.473.673.974.6
71.772.8
74.774
71.1
63.964
65.5
56.556.5
62.5
65.8
60.7
57.3
65.6
61.8
63.4
59.759.9
68.1
56.7
64.8
66.6
63.8
57.157
67.9
64.8
74.9
57.4
61.3
59.9
64.864.5
60.9
65.3
60
64.3
66.4
56.956.5
62.763.8
69.1
58.3
70.5
57.556.656.1
62.3
65.1
56.7
65.2
55.555.256.2
64.765.2
57.6
63.863.4
67.1
57.2
67.8
64.3
56.2
61.1
62.5
55.8
59.8
65.1
69.8
82.2
66.365.4
63.2
5656.1
64.3
55.6
58.5
62.9
57.6
61.8
60.4
61.7
67.1
55.155.3
65.8
55.1
64.9
54.955
60.159.2
63.8
61.8
65.2
56.2
64.763.6
64.8
67.5
58.7
60.8
62.962.863.6
60.9
55.855.2
62.7
65.5
55.4
63.6
55.2
62.3
64.3
54.654.554.7
64.163.6
65.3
55.5
6463.3
56.356.155.4
65.2
55.1
64.2
55
64.364.1
62.4
58.3
54.2
61.3
54.5
63.163.6
55.1
65.7
70.5
63.663.162.2
59.3
55.8
59.6
62.8
70.3
63
59.9
61.5
66.1
71.5
66.4
59.6
55.955.755.255.8
65.5
62
54.855
61.8
67.5
56.4
63
65.5
55.9
62.762.3
55.155.4
62.3
65.1
55.6
66.7
54.855.455.1
62.862.5
55.3
68.6
56.856.755.9
70.6
68.8
55.9
65.4
54.8
5857.1
65.2
62.4
54.455.255.9
61.6
64.7
55.856.155.8
66.4
57.7
55.6
6362.262
55.1
62.7
59.9
65.4
57.7
55.755.255.4
60.4
71
56.4
62.9
54.9
64.6
62.4
54
65
5453.8
60.9
54.254.9
56.8
61.962.3
65.7
69.4
72.8
61.3
57.9
69.8
64.363.664.765.6
55.9
59.8
56.457.1
62.961.9
56.9
67.366.3
63.3
58.6
71
65.5
57
64.7
69.3
63.6
59.5
69.3
70.5
56.557.3
61
64.9
57.2
68.667.6
62.6
67.4
70.9
62.5
69.7
67.2
60.3
63.9
70.2
64.9
66.4
64.9
68.9
65.9
7271.3
63.9
69
65.9
69.4
71.8
67
71.4
68.568.5
70.9
67.5
69.1
72.8
68.1
73.372.9
69.3
71.2
65.9
67.5
71.6
69.8
73.6
71.6
64.5
70.870.771.3
73.9
70
72.1
67.768.769.6
71.4
73.2
70.3
71.9
73.7
69.4
75.8
71.972.4
69.3
72.673
70.7
72.3
70.4
73.6
71.5
69.1
71.372.272.6
69.2
74.17374.1
72.371.372.2
75.7
71.4
75.4
73.273.4
72.171.572
68.4
45
50
55
60
65
70
75
80
85
90
95
12:00 AM 12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐Minute Intervals
D‐Fri 10/25 D‐Sat 10/26 D‐Sun 10/27 D‐Mon 10/28 D‐Tue 10/29 D‐Wed 10/30 D‐Thurs 10/31
Location D: Harbor south of 75
45
50
55
60
65
70
75
80
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
dBA
Time
Barrio Logan Noise - 10/25/19 to 10/31/19 - Location D
65.8
69.3
65.5 65.6
68.8
73.0
65.6
69.6
64.0
68.3
71.3
73.9
65.7
62.2
64.6
66.7
70.4
74.1
64.8
66.4
64.1
66.5
71.0
74.3
65.6
69.5
67.3
66.0
70.1
74.0
67.666.7
68.167.6
70.0
74.6
67.8 68.067.1
65.666.7
68.7
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/11/19 to 11/17/19 ‐ Hourly Intervals
D‐Mon 11/11 D‐Tue 11/12 D‐Wed 11/13 D‐Thur 11/14 D‐Fri 11/15 D‐Sat 11/16 D‐Sun 11/17
Location D: Harbor south of 75
57.9
65
57.4
69.9
58.7
60.4
68.969.5
67.4
65
58.658.3
68.8
60.2
64
58.558.3
66.1
75.2
65.6
68.3
64
67.4
63.564.5
59.760.8
68.9
66.8
59.658.558.9
62.2
59.758.858.9
68.5
59.5
65.566.2
67.5
63.6
60.1
67.9
61.5
64.6
71.6
70.1
58.959.459.258.7
69.1
64.8
69.7
62
68.3
58.157.557.2
71.9
59.2
70.2
83.2
80.2
60.4
72
61
59.159.3
62.262.5
58.8
68.4
59.559.259.1
64.6
69.6
59.1
71.5
58.8
61.9
58.2
63.3
57.156.656.5
66.6
67.867.4
56.1
60.2
61.8
56.1
67.266.766.8
63.5
66.7
56.3
68.868.7
64.6
56.35656
68.3
70.370.5
56
64.365.264.9
56.756.957.4
64.4
56.556.355.756.3
65.565.4
56.456.3
61.6
55.9
60.6
57.2
63.4
56.756
67
5655.955.856.8
58
68.3
70
57.8
59.3
62.6
57.857.3
61.562.2
70.2
73.6
68.9
57.157.6
67.7
58.3
63.6
66.7
72.6
63.9
65.364.2
69.2
59.159.1
66.4
58.859.4
71.4
74.9
65
67.1
59.759.859.7
65
58.158.3
66.1
64.9
58.358.558.3585857.557.858
74
56.956.756.356.255.955.3
64.6
63.1
61.2
55.856.356.7
64.4
58.358.5
66
58.559.159.158.658.559.3
66.2
58.6
70
58.3
65.565.664.9
58.7
68.2
5958.6
71.9
63.4
58.8
67.366.7
64.865
67.9
58.4
70.370.6
58.8
66.5
67.7
63.8
69.8
71.6
66.3
74
65
57.3
60.5
65.5
69.8
6868.6
57.4
67.4
65.866.1
61.6
67.9
63.9
71.3
59.1
66
60.559.5
71.2
66.6
69.668.6
64
59.6
66.8
72.872.7
66.5
59
65.7
63.963.2
66.5
73.4
64.2
66.2
72.8
71.4
67.6
70.5
65.5
74.3
67.268.3
70
67.6
65.7
72.9
66.1
68.2
73.8
68.2
70.4
67.1
72.6
58.8
73.373.6
66
69.1
72.3
69.6
77.6
69.1
75.7
70.2
64.9
67.3
72.172
70.369.9
68.5
72.7
70.671
69.169.6
74.9
71.8
69.2
72.2
70.2
72.9
70.6
72.372.8
74.2
70.2
74.4
69.4
74.274.774.6
70.4
66.8
72.5
75.1
71
73.1
76.5
71.2
78.3
70.9
75
72.4
70.5
75.3
73.573.3
71
68.1
72.7
74.8
71.4
74.2
77.3
73.4
77.3
73.4
65.1
59.2
64.3
68.6
59.3
6767.7
69.4
59.2
70.8
60.2
62.3
65.1
59.959.759.5
67.6
62.8
59
62.562.9
59
60.960.9
58.3
63.5
70.969.8
59.6
58.3
65.1
71.3
58.358.158.658.358.5
70.8
65.1
61.562
74.1
58.958.9
70.4
59.358.9
68.7
58.458.4
65.6
58.258.4
62.7
67.2
62.5
68.467.867.5
58.1
61.2
68.6
63.6
74.9
83.3
78.4
59.4
58
66.4
57.7
59.3
62.9
64.6
70.6
58.5
66.6
59.1
65.3
66.6
65.2
57.9
65.5
59.1
66.5
69
57.5
71.6
57.9
67.6
59.5
75.1
65.7
56.856.8
65.2
71
69.4
57.156.756.556.957.356.7
62.8
66.6
71.3
64.3
72
55.9
60.460.9
70.5
56.1
68.9
56.255.656.755.8
65.6
67.4
69
67.3
70.7
63.8
55.956.55655.8
61.9
67.5
56.1
70.7
56.455.955.455.3
60.6
71.1
67
65.2
55.956.3
66.6
63.1
64.7
56.455.8
62
67.7
55.955.9
62.463.5
57
64.5
56.5
63.563.6
55.555.6
65.266
68.1
66.8
56.8
55.656.2
63.7
56.2
61.4
56.356.256.2
65.165.565.4
69.6
55.75654.9
71
74.2
70.5
61.8
66
55.9
65.8
55.5
71.1
56.4
60.2
56.2
63.1
55.955.1
61.9
65.2
56.2
59.8
62.1
69.7
67.1
68.6
56.357.1
61.9
65.9
64.3
71.471.3
61.5
64.164.964.3
65.6
64
65.4
57.6
73.6
71.171.9
58.359.4
68.6
61.6
73.3
62.7
65.164.6
70.4
65.565.5
71.2
58.4
75.475
67.9
57.7
76.7
61.4
71.3
78.2
72.7
58.2
74.3
67.1
57.8
69.1
74.3
71.8
61.1
72.3
65.8
64.6
70.1
61.9
70.4
65.2
61.1
66.6
65
70.1
62.5
66.1
71.3
62.1
71.671.7
73.5
71.1
57.8
70.9
69.4
71.3
72.7
67.6
69.5
63.1
70.571.6
73.774.1
76.8
78.7
70.6
65.2
69.7
65.2
73.172.2
69.1
71
72.6
67
71
72.8
68.2
73.4
70.7
72.4
69.569.7
75.3
70.470.1
68.7
73.2
71.2
74.6
66.3
75.1
71.572.3
76.9
71.471.4
74.2
69.8
71.7
73.3
76.2
71.672.3
70.9
72.2
76.9
70.970.8
76.3
71.170
71.8
75
72.773.2
76.2
72.4
74.4
73.172.6
7574.4
79.2
74.9
72.7
71.4
76.6
74.7
77.5
74.9
76.2
71.4
76.8
72.272.4
75.4
77.5
7574.3
72.172.1
61.4
66.3
69.7
64.863.8
66.7
72.2
58.4
61.6
68.167.7
57.9
70.8
68.1
56.356
65.4
57.4
59.3
56.8
61.2
65.1
67.3
64.7
59.3
64.5
68.6
59.8
56.7
63.163.6
67.3
6565.2
57.3
63.8
56.856.1
64.263.3
55.6
56.856.7
62.5
67.2
69.570
67.2
70
67.1
57.7
66.3
69
66.4
71.4
57.4
65.8
67.8
57.957.3
67.2
57.957.157.3
65
56.3
67.6
57.856.95857.157
62
60.1
56.557
68.6
65.2
56.357
67.567.5
63.6
56.455.355.455.9
64.8
68.1
61.9
56.45756.3
59.4
65
55.555.7
60.4
56.6
59.960.6
63.5
55.355.9
69.6
56.4
60.1
65.9
56.9
65.1
55.955.655.955.355.555.6
65
58.7
61.9
56.6
64.8
56.755.656.1
64.5
56.55656
61.7
56.455.3
63.3
55.956.15756
59
56.4
65.9
56.3
59.9
56.3
66.4
63.6
66.2
77.6
67.6
5656.3
64.664.9
60.9
65.9
55.355.956.1
62.6
55.45555.556
59
70.9
65.5
69
57.3
71.8
61.5
56.156.257
70.5
62.8
55.955.855.4
64
55.255.255.455.656
74.7
56.4
58.1
55
69.370
62.4
55.455.4
67
56.256.356.7
62.5
67.1
71.4
63.564.6
57
55.8
60.2
68
56.7
62.2
70.5
63.2
57.656.5
65.1
68.9
56.9
66
57.257.3
72.4
67
59.7
62.7
71
66.967.366.4
57.156.856.456.9
75.5
63.762.9
67.2
68.969.6
64
62.8
74.1
60.6
62.763.3
59.4
69
75.7
70.3
68.9
64.3
68.469.4
67.9
66.2
73.6
58.1
65.5
63.5
68
63.5
72.2
70.570.9
60.7
66.8
62
71.6
73.1
70.9
69.2
72.9
69.570.570.470.2
65.1
69.368.9
67.1
68.4
60.4
70.670.67069.469.8
75.6
68.8
71.770.771.8
70
73.8
75.3
69.469.568.4
69.6
70.9
69.2
71.4
75.8
69.6
66.1
77.3
69.3
74.3
73
68.8
72.2
68.2
72.7
70.2
72.571.7
76.275.3
67.3
75.2
68.9
72.97474.8
71
72.973.674.7
77.5
68.4
76
73.5
74.8
69.268.7
73.5
72
7474.374.375.4
72.671.5
73
77.6
73.172.3
74.2
76.675.574.6
76.3
72.8
75.875.3
71.7
74.274.1
76.7
75.5
73.4
79.7
71.4
73.472.672.6
61.5
59.559.359.259.5
63.4
65.465.465
61.7
65.9
58.858.4
65.9
64.3
69.6
59.1
68.1
63.6
69.7
58.3
65.6
64.1
58.558.858.958.9
61.9
69.4
62.9
58.458.4
65.4
58.958.3
70.4
59.559.6
66.7
65.2
68.3
59.6
61.7
67.2
64.8
66.4
60.1
62.9
64.3
59.359.4
65.7
64.5
59.3
63
65.365.7
67.2
73
61
63.1
66.2
69.7
59.859.660.3
64
60.2
69.9
66.6
59.559.2
70.4
60.1
75.9
57.658.3
67.3
61.8
58.258.157.7
68.9
58.958.3
74
65
60.7
59.5
64.5
66.2
57.2
66.4
56.856.457.457.256.657.4
65.5
56.8
64.9
57.557
64.6
56.9
60.8
69.5
57.1
68.8
57.456.656.956.356.356.3
62.8
72.9
59.5
77.3
58.1
56.3
64.9
57.1
65.6
56.7
74.7
58.1
56.8
64.9
56.8
60.7
5656.556.757.5
70.170.8
5757.257.2
69.7
61.961.7
72.5
56.6
58.359
57.5
63.1
60.1
56.9
58.357.457.257.256.5
65.1
56.756.6
62.7
56.8
62.8
57.456.3
65.7
63
64.4
56.756.756.8
61.560.5
70.2
68.2
57.3
64.7
56.757.6
56.1
64.9
61.6
56.655.856.255.8
58.2
62.1
65.2
56.155.855.956.1
59.9
64.5
56.856.3
61.6
57
67.5
65.8
56.3
59.2
56.856.656.4
58.1
76.1
65.9
56.5
62.4
71.8
56.1
75.1
59.6
62.2
57.1
68.8
62.3
64.2
75.4
70.4
56.6
67
64.865.2
71
63.463.1
70.1
65.2
56.5
57.9
68.2
66.7
61.8
70.569.8
62.4
57.2
61.9
67.167.868.869.5
72.5
74.8
66.5
64.6
69.4
71.470.8
63.1
64.7
63.2
67.967.767.5
61.4
69.5
64.5
57.556.9
69.770.571.6
68.2
70.871
67
70.5
69
67
75.9
66.3
72.1
73.5
65.5
70.770.6
67.5
76.7
62.862.7
70
73.1
69.1
72.772.2
62.8
75.2
78.8
69.8
73.3
68.6
76.5
68.5
71.1
74.7
72.5
74.175.2
68
72.1
74.6
72.974
69.2
73
71.3
74.8
73.6
71
67.1
74.2
71.6
73.6
75.37575.3
72.671.571.9
77
71.5
76.876.6
74.5
76.6
72.171.7
76.7
72.6
75
72.2
76.1
70
68.4
74.9
72.9
76.976.3
74.374.6
75.8
73.8
71.8
76.8
75.474.874.475.5
74
72.8
78.4
73.774.3
76.8
73.8
71.671.6
66.6
58.4
69.6
72.8
66.8
70.7
63
67.7
71.6
59.8
66.3
71.5
59.258.958.6
70.1
5958.5
65.165.9
58.8
66
64.6
58.4
70.8
65.6
64.3
69.1
60
64.4
67.5
60.8
66
68.4
65.5
58.65859.159.158.357.957.658.659.6
63.3
58.458
64.6
58.958.5
67.5
64.8
57.2
64.5
58.9
61.1
68.667.8
63
64.263.6
59.9
71.9
83.7
72.2
68.5
57.857.3
65.967
57.9
72.1
58.3
64.5
56.9
61.9
68.8
58.357.5
6565.2
71.7
57.6
63.7
57.7
64.5
59.4
64.5
68.4
63.3
73.4
66.4
57.8
62.1
66.767.566.6
59
69.8
75.9
73.9
58.7
64
57.9
71.2
65
57.457.258.1
66
71.6
61.8
58.1
60.2
64.7
66.3
63
585857.9
65.665.8
59.6
64.8
68.1
63.864.8
66.8
58
65
68.4
58.1
72
59.7
57.8
59.158.3
77
58.4
71.1
59.4
66.2
69.5
57.857.9
59.5
67
58.858.457.7
71.8
69.1
58.7
68.8
79.5
66.866.4
59.8
58.359.4
66.3
69.4
67.6
69.4
57.7
67.1
57.3
64.664.9
56.656.957.557.457.4
63.2
57.457.5
59.5
57.156.9
68.6
57.5
66.4
57.7
65.4
72.2
60.661.1
57.5
65.4
5758.157.656.7
57.9
63.7
70.2
57.6
60.8
71.7
65.5
57.3
61.4
58.1
66.4
57.5
68.9
59.5
57.858.257.7
71.1
57.7
66.66666.5
65.1
58.5
69.3
67.8
69.2
58.2
69.8
66.3
61.2
58.658.8
60.5
59.3
67.6
63.5
66
58.459.5
65.1
67.668.3
70.971.672.1
69.8
66
72
70.3
68.7
61.7
63.9
75.2
63.5
69.368.2
72.972.9
63.8
67.167.8
69.4
61.4
68.6
60.2
70.2
68.668.868.1
72.6
70.769.9
67.4
65.2
62.5
64
70.2
65.866.1
69.5
67.5
71.772.1
66.3
72.6
61.7
70.970.7
65.6
77.7
67.1
68.7
72.272.473.4
63.2
72.2
66.566.2
67.4
72.372
70.6
74.2
71.3
73.9
77.2
70.6
72
75.3
67.9
72.7
71.471.7
75.7
72.9
74.1
67.3
71
74.3
72.973.57474.274.6
72.4
76.1
70.2
73.172.972.271.8
73.6
70.1
71.5
74.97473.3
74.9
73.4
75.8
73.9
71.971.872.3
76.9
72.5
76.1
78.7
72.3
77
71.872.573.3
76.675.5
70.2
78.1
74
76.275.4
73.872.7
71.2
74.174.1
59.2
70.4
6970.1
75.2
61.6
66.3
71.3
63.2
69.4
67.667.9
7170
63.6
69.1
63.9
66.2
69.8
63.564.4
66.3
59
63.4
69.4
58.2
67
64.6
74.2
59.5
64.5
70.2
63.2
56.8
63.3
67.4
65.165.3
56.7
68.7
57.1
71
57.9
67.4
69.8
67.566.9
57.557.2
65.8
70.170.6
64.4
57.557.356.7
68.8
71.8
65.565
69.4
64.4
67.667.1
65.165.7
57.1
65.3
62.562.3
58.257.1
62.5
71.1
57.5
69
57.558.3
66
68.2
58.5
64
57
60.7
57.6
68.568.4
63.1
71.3
70.169.7
63.1
70.6
56.9
6564.265.1
62.2
59.159.5
66.7
69.468.7
66.666.6
70.470.9
68.5
56.9
65.8
70.6
67.7
63.9
72.3
69.8
65.2
68.5
60.1
64.463.9
65.6
74
70.5
66.5
70.3
72.4
65.1
68.4
61.5
69.4
63.4
66.9
58.4
61.962.162.3
57.4
67
74.9
66
62.6
58.8
68.7
61
63.763.3
68.7
72.5
57.156.557.356.9
64.7
79.3
74
57.257.5
71.3
57.5
67.2
56.8
67
68.6
56.9
67.4
69.9
58.8
68.3
62.3
57.7
66.6
58.6
68.3
65.5
59.1
69.1
61.361.560.4
57.1
65.9
69.5
57.557.2
65.7
69.6
63.9
59.3
70.5
64.3
58.957.957.4
63.7
57.657.2
66
73.4
72.2
68.3
65.6
62.7
57.4
68.7
57.9
63.563.2
58.1
64.2
65.7
66.9
65.3
58.9
64.2
65.9
68.9
64.965.2
63.7
58.1
71
69.8
65
68.4
71
62.3
65.1
62.9
58.1
66.5
74
63.2
69.7
66.7
68.3
6463.5
66.5
67.7
64
78.8
68.9
66.6
65.36666.9
60.3
57.957.9
69.5
57.8
68.1
73.3
70.6
63.3
68.1
65.4
67.5
73.8
62.1
66.8
77.3
65.3
69.2
67.766.6
71.670.5
59
67
72.2
58.8
66.8
65.6
70.7
72.1
69.1
73.7
65.4
70.2
63.1
67.7
71.6
69.1
73.3
68.5
72.7
60.4
66.3
71.5
59.7
66.4
71.770.6
58.6
63.5
70.8
72.4
71.171.8
63.9
73.8
66.3
67.7
69.8
72.5
70.8
73.9
63.6
64.9
72.173
68.6
74.4
64.5
71.4
68.669.570.569.6
68.4
63.8
69.6
73.2
77.1
70.9
75.2
70.6
74.5
68.2
72.3
71.1
64.3
73.7
70.8
64.6
70.6
87.6
71.5
68.6
74.375.2
64.9
82.1
68.4
71.1
68.8
70.8
76.7
74.7
69.6
78.1
69.5
76.276.2
74.9
76.3
71.5
67.6
72.972.972.7
70.4
68.3
71
66.767.5
60.7
65.3
67.867.3
70.5
66.5
72.6
62.8
69.9
71.471.6
65.1
68.2
61.460.961.8
66.765.9
68.5
60.2
69.6
64.3
67.367.7
69
62
68.9
67.6
60.2
72.5
64.7
59.9
61.6
58.9
65.3
66.8
63.8
59.1
71.2
63.9
58.7
65.5
67.9
59.1
65.5
59.559.159.4
65.1
69.6
59.1
75.9
71.8
63.4
73.273.3
65.4
70.6
64.7
59.3
63.5
59.1
62.5
66.1
64.7
60.360.7
64.965.3
69.7
59.7
70.769.9
60.4
7272.9
68.7
67.4
66.1
68.8
67.5
60.2
67.7
73.4
64.8
70.6
64.3
58.7
63.2
66.366
63.9
59.3
65.9
69.2
66.8
68
70.2
71.7
63.5
59.9
70.1
66.7
72.9
66.6
69.8
66.467.167.7
69.6
67.4
69.4
61.260.5
69.4
65.1
62.1
71
66.4
62.6
67.6
69.6
63
69.1
71
61.461.3
70.5
66.5
70.7
61.3
66.2
68.1
64.9
66.6
63.8
60.4
63.7
59.3
69.4
71
64.9
69.7
65.5
71.5
60.5
63.6
60.1
65.4
67
69
60.4
68.8
71
60.7
62.762.161.762.4
66.7
70.9
62.7
69.268.9
73.2
61.8
64.1
61.961.9
63.1
65.5
59.6
62.3
68.468.4
66
64.1
66.2
61.160.360.360.860.561.561.4
66.2
62.9
65.5
63.6
64.9
61.361.6
68
64.2
62.4
68.3
6262.4
63.663.6
68.368.5
6465.1
62.9
67.6
63.1
66.4
64.6
61.6
71.4
63.163.1
70.4
66.966.266.4
71.7
68.8
61.9
63.2
68.3
60.160.8
69
60.9
67.8
61.361.4
66.6
68.4
63.262.3
63.663.462.5
6565.6
6465.1
63.1
61.160.4
69.4
6867.9
62.3
65.8
60.560.3
68.8
59.8
69.4
60.561.161.4
68.5
65.6
68.8
66.9
69.1
71.271.7
67.3
69.1
66.2
70.2
59.9
67.567.5
70
66
70.270.1
71.3
62
66.3
60.9
65.3
68.5
62.7
61.3
65.6
64.163.262.9
67.3
68.767.6
61.1
64.3
65.6
61.1
67.868.6
70.5
69.2
71.5
67.2
68.6
62.5
70.5
67.3
65.1
69.9
62.8
65.365.2
72.5
71.2
63.96363.3
65.1
69.7
71.4
64.2
67.8
63
67.9
64.7
71.6
67.867.5
69.568.5
66.8
71.4
66.766.1
68.3
64
67.766.6
69.869.870.4
64.5
66.6
70.7
72.5
67.1
68.8
72.8
64.9
71.6
64.6
69.2
65.5
71.4
69.269.8
71
69.169.1
45
50
55
60
65
70
75
80
85
90
95
12:00 AM 12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/11/19 to 11/17/19 ‐Minute Intervals
D‐Mon D‐Tue D‐Wed D‐Thurs D‐Fri D‐Sat D‐Sun
Location D: Harbor south of 75
45
50
55
60
65
70
75
80
dBA
Time
Barrio Logan Nighttime Noise - 11/11/19 to 11/17/19 - LOCATION D
65.265.9
63.2
65.4
69.5
73.8
66.367.4
63.1
68.969.5
73.4
66.0
68.3
66.3 66.5
69.8
72.9
67.066.1
67.967.1
69.8
74.3
72.3
69.4
70.7
64.9
70.2
73.5
67.666.7
68.167.6
70.0
74.6
69.268.3
67.8
65.7
66.9
68.7
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/18/19 to 11/24/19 ‐ Hourly Intervals
D‐Mon 11/18 D‐Tue 11/19 D‐Wed 11/20 D‐Thur 11/21 D‐Fri 11/22 D‐Sat 11/23 D‐Sun 11/24
Location D: Harbor south of 75
67.7
63.2
59.8
65.866.4
63
59.659.7
62
64.164.9
60.7
69.2
70.5
68.4
64.565.5
61.661.3
70.6
63.164.1
67.1
65.665.464.3
68.2
65.3
66.9
62.1
64.864.964.3
61.7
72.3
66.6
70.6
59.9
64.164.7
59.859.859.359.860.9
63.9
62.762.1
58.3
66.1
58.257.557.758
62.6
60
67
59
64.2
67
75.2
58.9
6868.1
69.3
6059.359.15959.359.4
66.266.7
59.4
69.5
67.2
64.9
58.5
63.8
59.4
67.9
6261.5
59.65958.6
63.1
68.267.7
70
66.1
68.1
59.860
66.9
71.1
64
58.859.759.3
66.266.766.467.3
61.1
59.7
61.7
68.3
62.5
68.2
66.366.1
68.2
66.6
60.6
65
60.261
65.666.665.8
6161.962.762.862.762.2
69.1
62.762.362.762.862.762.762.363.1
64.3
61.861.461.962.9
66.2
636262.562.2
63.8
61.961.1
64.4
61.562.562.8
66.8
61.160.9
6666.8
60.460.159.759.5
65.1
59.4
69
59.7
62.5
61.36160.6
59.1
62.2
58.9
68.9
63.1
59.25958.959.660.3
68.4
62.6
58.858.8
62.4
59.4
64.7
57.9
61.6
58.458.6
59.9
64.163.9
65.2
6766.5
60.7
65.5
68.1
5959.760.559.959.6
63.9
60.260.5
62
71.9
66.9
60.560.961.3
67.7
63.1
60.5
65.5
70.5
69
62.5
69.3
66.4
69.7
66.3
61.7
60.5
63.2
67.9
64.3
68.4
65.9
63.163.6
68.4
62
59.3
65.6
70.370.2
65.1
68.2
61.5
69.6
62.4
69.7
61.5
70
68.4
62.3
70.6
62.4
64.8
66.6
61.1
68.4
67.2
65.8
73.373.372.4
62.1
71.1
61.4
69.6
68.3
66.567.667.967.9
63.5
69.469.668.9
67.6
69.4
71.571.270.3
68.168.5
67.1
70.5
68.9
71.4
68.7
67.1
69.3
72.1
70.169.9
74.1
70
68.2
73.2
71.271.670.8
74.4
72.3
68.6
70.5
75.5
73.6
75.4
69.1
71.771.8
73
69
71.871.872.371.2
75.1
71.1
7371.9
70.3
74.8
69.6
72
74.6
73
74.9
76.3
74
77.3
72.972.3
74.9
71.672.2
70.8
76.7
71.471.3
74.9
72.672.7
75.174.5
72.971.9
77.4
75.2
71.572
77.3
7675.7
71.1
73.373.974.9
72.773.873.5
77.677.3
73.4
68
66.4
60.461.161.1
68.7
62.6
67.5
69.570
66.766.1
63.7
65.9
67.5
62.9
69.6
61.4
67
62.2
67.4
59.960.761
64.8
69.1
64.3
62.2
66.466.9
60.5
67.6
65.365.7
59.9
67.567
68.367.6
64.3
69.3
67.7
70.1
60.360.2
72
59.6
68
60.260.9
62.8
66
64.6
59.2
61.1
69.1
60.360.960.9
73.2
59.860
61.9
59.8
68.9
59.9
64.7
60.160.359.6
67.1
64.7
58.3
69.9
59.359.1
72.5
59.159.459.3
67.266.1
68.8
64.1
67.1
58.7
63.4
66.7
64.2
59.5
63.2
58.657.957.8
68.5
60.5
65.9
61.5
59.2
64
62.5
71.2
68.6
73.7
80.6
70.7
62.6
60.159
64.6
59.1
62.1
58.558.759.158.4
63.3
59.1
67.4
72.9
63.5
70.2
59.7
62.261.3
59.460.5
70.9
59.7
68.4
6463.5
59.458.759.8
66.6
58.758.458.958.759.7
66.165.4
59.159.358.859.259.1
68.3
59.1
64.4
67.5
64.2
67.5
62.1
59.8
62.863.9
61.3
58.959.459
62.7
59.7
67.7
59.659.959.559.459.959.659.759.5
58.659.759.9
62.5
58.85858.35958.6
71.6
59.758.958.959.960.259.559.160.159.759.458.9
60.661.3
63.6
74.7
61.162.1
71.3
79.6
74.4
65.6
60.560.361.360.560.3
63.1
61.1
67.4
65.9
6160.4
73
60.6
65.5
64.3
71.9
61.4
67.5
69.2
63.9
60.360.9
71.4
66.3
78.6
68.5
60.4
77.2
69.4
63.6
70.5
60.760.361.160.8
65.6
70.4
67.568.4
61.3
69.2
74
66.1
61.1
66.166.7
68.168.2
62.2
64.263.2
68.8
75.7
70.6
64.864.7
66.5
62
68.6
64.264.5
67.868.6
70.6
67.2
69.4
67.8
71.370.970.5
62.1
65.1
69.6
65.2
70.4
74
63.8
67.7
69.569.1
70.469.970.5
67.2
69.468.3
73.4
67.6
68.8
71.272.2
69.6
73.9
72.6
68.6
73.7
71.4
73.2
75.5
68.1
71.672.471.570.5
72.272
67
69.5
67.2
7373.473.573.274.1
72
73.7
72.2
69.7
73
70.7
72.773.5
71.870.7
72.671.8
70
7372.371.3
75.6
74
68.4
78.177.2
72.5
74.675.6
74.174.6
72.9
75.3
78.9
73.673.473
74.574.875
72.6
73.8
75.2
73.6
75.2
71.8
67.8
72.1
68.9
61.160.5
66.3
65.1
67
65.8
60.860.5
68.4
72
61.760.9
68.9
67.1
69.6
64
67.8
65
62.5
66
71.1
68.968.4
6362.7
67.2
62.261.9
64.3
66.465.76565.16464.2
71.8
62.8
64.6
66.9
69.8
68.2
62.861.961.261.1
63.864.3
69.7
60.560.661.562.6
64.9
62
67.1
61.3
65.5
60.7
63.162
64.4
72.8
75.6
81.2
69.5
66.9
60.2
61.460.760.860.160.260.8
65.9
70.9
64.7
68.2
60.560.960.7
63.163.7
65.4
60.5
61.961.8
68.8
64.6
62.8
60.359.960.560.1
65.5
60.5
64.3
69
65.2
61.9
60.3
74.2
60.8
63.6
66.4
61.160.1
68.6
64.8
60.3
75
61.560.5
73.4
61.760.960.3
61.66261.761.4
68.8
60.3
69
61.5
66.2
63.9
65.8
60.460.1
64
66.6
60.259.8
66.667.3
62
65.3
66.866.966.4
6261.5
63.3
61.362
63.5
60.460.660.560.76160.9
63.863.1
60.6
77.3
65.6
64.3
61.3
69.1
63.5
66.5
69.4
66
61.7
66.9
60.761.1
65.7
68
60.7
64.3
73
66.5
61.561.7
68.5
71.6
61.962.862.463.4
65.3
61.961.7
65.6
62.3
67.1
72.2
67.168.2
65.5
62.7
66.5
61.862.7
63.9
61.6
69.8
65.5
66.8
76.3
61.7
66.9
61.1
63.2
60.7
67
60.560.360.3
68.168.6
61.6
68.2
60.3
65.4
60.960.560.7
65.5
73
61.1
68.6
66.166.966.6
61.3
65.9
63.764.663.9
61.7
65.4
70.4
61.1
69.7
61.9
67.4
61.5
65
77.5
66.6
62.1
67.4
69.3
66.4
60.761.3
65.4
67.8
69.4
66.2
61.6
69.668.569.1
65.4
62.7
64.9
66.3
68.3
66.3
67.6
69.768.9
65
67.868.6
66.766.966.8
69.9
66.2
71.4
66.6
67.8
70.9
74.6
71.970.9
73.2
65.8
69.869.769.468.468.9
73.4
75.5
74.1
72
70
71.271.972.3
73.5
62.4
68.3
72.2
70.8
69.5
72.5
74.3
68.7
70.2
64.9
71.4
67.9
74.273.472.572.8
74.4
70.7
67.6
71.771.970.972
70.6
73.8
72.5
67.7
76.2
72.172.2
70.5
73.973.974
70.6
72.1
75.2
70.6
73.2
69.4
7271.2
73.9
72.4
76.2
74
72.8
74.9
72.8
75.574.4
72.3
75.3
7272.972.2
76.3
73.9
75.274.8
71.671.972.6
58.7
57.5
63.9
68
69.268.7
58
66.1
73.2
66.1
62
67.5
69.4
64.4
57.157.8
64.7
59.5
76.4
67.8
72.8
66.3
71.9
65.2
68.5
66.166.6
70.2
67.7
62.1
59
66.2
58.659.558.458.357.958.3
65.6
73.3
57.658.7
72.8
57.1
66.9
62.7
66.6
60.1
56.9
65.2
5757
65.866.6
57.1
63.1
57.6
67.6
59.8
63.6
65.4
57.1
69.3
71.1
68.3
77.7
66
59.7
56.756.956.256.6
66.4
57.756.8
61.7
56.957.4
69.6
63.1
65.2
56.75757.2
64.1
62.2
57.8
61.3
69.5
65.3
68.3
62.6
70.4
61.5
57.357.9
59.4
57.4
60.8
57.657.857.8
65.1
58.257.9
64
70.7
62.7
71.3
66.8
63.4
71.4
64.8
71.4
58.658.158.1
60.761.5
58.358.458.3
68.5
58.35858.858.858.558.758.5
61.4
59.3
68.8
63.4
57.4
60.8
6262
67.7
69.6
61.5
68
61.4
67.2
62.2
67.2
62.6
72.873.8
69.4
65.2
63.4
67.8
59.8
68.4
6263.1
59.5
60.9
65.5
68.7
61.1
63
65.365.7
68.768.1
72.7
67
61.2
59.558.7
66.3
67.6
63.3
64.8
59.1
73.6
80.6
69.7
74.4
66.666.3
58.257.657.256.957.257.457.157.157.1
57.757.3
71.5
63.5
60.8
57.757.5
65.5
57.8
68.3
66.5
70.1
67.466.6
71
58.158.259
66.6
73.7
68.767.8
58.557.9
66.4
58
68.2
72.1
58.1
63.6
65.8
59.3
70.3
67.7
74.9
58.958.3
73.5
58.3
67.367.166.4
58.258.7
72.5
59.6
58.3
70.671.5
69
59.9
64.2
70.669.5
57.457.9
59.9
70
58.757.9
65.2
71.871.2
68.269.3
67.8
66.667.2
6059
67
65.5
69.2
71.1
64.3
70.7
68.2
71.9
59.159.3
69.3
64.4
70.5
69
71.9
68.469.2
71.9
70.4
72.373.4
62.5
71.3
67.8
71.4
61.6
67.867
68.468.5
75.174.5
73
75.2
71.9
73.1
71.7
74.473.873.1
69.9
76.7
72.3
75.6
71.7
68.469.5
75.8
71.9
70.7
74.3
70.370.3
72.3
74.5
73.2
74.9
76.4
68.5
73.8
71
72.8
74
75.475.1
77
75.3
73.4
76.8
74.2
75.674.674.4
76.4
69.7
74.273.7
72.4
75.3
77.4
72.673.573.8
76.2
74
70.5
76.475.6
74.374.575.5
74.374.8
76.6
74.975.374.675
71.6
75
70.1
60.2
63.9
61.6
73.7
71
75.1
67.6
78
69
67.2
69.8
65.5
80.7
69.469.3
66.7
75.9
78.2
73.8
61.6
67.4
68.9
67
70.8
66.8
60.3
66.8
76
66.3
69.5
70.8
72.6
67.7
77.3
70
73.1
67.8
75.5
59.759.6
70.7
60
78
67.4
68.6
65.3
68
69.4
76.4
71.6
75.6
64.6
59.1
77.8
67.1
59.9
65.5
71.570.8
64.5
67.266.3
74.8
77.9
74
62.1
71.3
66.9
59.1
66.3
59.459
70.5
62.6
58.658.658.958.958.758.558.35959.159.1
63.6
68.4
59.660.3
58.959.7
65.5
68.1
63.1
59.3
64.8
60.6
72
62.5
59.2
68.7
60.160.4
82.8
70.6
72.9
67
58.9
67.5
69.2
59.6
66.6
60.7
68
58.8
66.3
70.2
59.4
63.5
70.5
59.5
67.9
75.2
63.1
77
72.471.4
78.7
66.8
71.2
59.5
73.5
62.7
69.269.5
76.3
63.2
77.2
57.9
75.7
68.167.4
65.366.3
68.5
59.2
60.4
73.274.3
71.5
59.7
67.9
65.5
69
64.7
59.65959.7
63.1
66.8
72.5
78.1
75.9
69.3
62.4
68
59.2
67.5
59.1
63.6
59.359.159.1
65.8
59.158.558.7
69.168.768.4
62.7
59.3
63.9
58.5
72.8
5958.559.4
63
67.666.8
59.959.559.559.1
63.9
59.8
65.5
60.460.1
72.9
64.6
6059.56059.8
66.1
59.760
63.8
62.1
67
59.559.5
71.2
61.9
65.1
60.159.9
68.568.6
60.3
62
65.2
59.659.859.259.259.8
64.8
69.2
60.9
59.7
68.167.2
60.559.4
66.7
68.9
71
69.5
67.9
69.9
67
72.4
70
65.6
68.5
65.9
60.2
67.2
65.1
6969.5
64.9
68.4
60.5
69.9
72.4
66.6
71.8
69.4
67.5
65.1
75.4
70.9
65.6
71.1
73
67.766.867
69.4
65.8
71.3
73.1
68.8
61
70.3
68.1
72.5
66.3
70.7
72.3
70.2
73.4
66.2
74.1
72.6
68.6
70.1
72.8
66.866.8
71.7
73.7
71.672.772.473.2
68.1
7474.1
70.9
68.5
71.3
69.5
74.3
69.569
71.8
73.9
70.571.1
76.5
72.672.873.972.9
70.570.7
73.8
70.3
74.373.2
72
74.2
70.370.9
76.5
7272.572.5
77
75.1
70.4
73
70.8
757573.9
76.8
71.8
75.475.4
71.7
74.7
70.6
75.4
74
71.8
76.1
74.9
76.476.4
73.773.9
71.971.2
74.1
59.2
70.4
6970.1
75.2
61.6
66.3
71.3
63.2
69.4
67.667.9
7170
63.6
69.1
63.9
66.2
69.8
63.564.4
66.3
59
63.4
69.4
58.2
67
64.6
74.2
59.5
64.5
70.2
63.2
56.8
63.3
67.4
65.165.3
56.7
68.7
57.1
71
57.9
67.4
69.8
67.566.9
57.557.2
65.8
70.170.6
64.4
57.557.356.7
68.8
71.8
65.565
69.4
64.4
67.667.1
65.165.7
57.1
65.3
62.562.3
58.257.1
62.5
71.1
57.5
69
57.558.3
66
68.2
58.5
64
57
60.7
57.6
68.568.4
63.1
71.3
70.169.7
63.1
70.6
56.9
6564.265.1
62.2
59.159.5
66.7
69.468.7
66.666.6
70.470.9
68.5
56.9
65.8
70.6
67.7
63.9
72.3
69.8
65.2
68.5
60.1
64.463.9
65.6
74
70.5
66.5
70.3
72.4
65.1
68.4
61.5
69.4
63.4
66.9
58.4
61.962.162.3
57.4
67
74.9
66
62.6
58.8
68.7
61
63.763.3
68.7
72.5
57.156.557.356.9
64.7
79.3
74
57.257.5
71.3
57.5
67.2
56.8
67
68.6
56.9
67.4
69.9
58.8
68.3
62.3
57.7
66.6
58.6
68.3
65.5
59.1
69.1
61.361.560.4
57.1
65.9
69.5
57.557.2
65.7
69.6
63.9
59.3
70.5
64.3
58.957.957.4
63.7
57.657.2
66
73.4
72.2
68.3
65.6
62.7
57.4
68.7
57.9
63.563.2
58.1
64.2
65.7
66.9
65.3
58.9
64.2
65.9
68.9
64.965.2
63.7
58.1
71
69.8
65
68.4
71
62.3
65.1
62.9
58.1
66.5
74
63.2
69.7
66.7
68.3
6463.5
66.5
67.7
64
78.8
68.9
66.6
65.36666.9
60.3
57.957.9
69.5
57.8
68.1
73.3
70.6
63.3
68.1
65.4
67.5
73.8
62.1
66.8
77.3
65.3
69.2
67.766.6
71.670.5
59
67
72.2
58.8
66.8
65.6
70.7
72.1
69.1
73.7
65.4
70.2
63.1
67.7
71.6
69.1
73.3
68.5
72.7
60.4
66.3
71.5
59.7
66.4
71.770.6
58.6
63.5
70.8
72.4
71.171.8
63.9
73.8
66.3
67.7
69.8
72.5
70.8
73.9
63.6
64.9
72.173
68.6
74.4
64.5
71.4
68.669.570.569.6
68.4
63.8
69.6
73.2
77.1
70.9
75.2
70.6
74.5
68.2
72.3
71.1
64.3
73.7
70.8
64.6
70.6
87.6
71.5
68.6
74.375.2
64.9
82.1
68.4
71.1
68.8
70.8
76.7
74.7
69.6
78.1
69.5
76.276.2
74.9
76.3
71.5
67.6
72.972.973.773.4
71.3
74
69.770.5
60.7
64.3
67.868.368.5
66.5
70.6
63.8
72.9
74.474.6
64.1
66.2
60.459.959.8
69.7
67.967.5
58.2
71.6
65.365.3
70.7
69
64
69.9
64.6
63.2
70.5
62.7
59.9
62.6
58.9
64.363.863.8
62.1
73.2
64.9
61.7
64.5
70.9
62.1
67.5
62.5
58.1
61.4
66.1
71.6
62.1
78.9
70.8
65.4
74.273.3
63.4
69.6
62.7
57.3
61.5
57.1
61.5
67.1
61.7
60.3
63.762.9
65.3
69.7
60.7
67.767.9
63.4
75
72.9
68.7
67.467.166.8
64.5
62.2
70.771.4
65.8
70.6
62.3
59.7
64.2
66.3
63
64.9
56.3
68.9
72.2
68.8
65
69.2
71.7
63.5
61.9
68.1
65.7
74.9
63.6
67.867.4
70.1
64.7
70.6
65.4
72.4
64.2
57.5
71.4
68.1
59.1
71
63.463.6
70.670.6
65
71.1
68
63.4
61.3
68.569.5
72.7
63.3
68.2
65.165.9
68.6
64.8
60.4
64.7
56.3
71.4
74
64.9
71.7
62.5
73.5
61.5
64.6
61.1
63.4
6768
60.4
65.8
72
59.760.760.1
63.764.464.7
69.9
60.7
66.2
71.972.2
60.8
62.1
64.964.965.1
68.5
58.6
62.3
70.469.4
67
63.164.2
61.161.3
63.363.8
62.5
59.5
64.4
67.2
65.9
64.5
62.6
63.9
61.3
59.6
67
64.2
60.4
66.3
6161.461.661.6
68.3
65.565
67.1
63.964.665.1
66.4
62.662.6
68.4
64.1
61.1
70.4
67.967.267.4
73.7
70.8
62.9
61.2
65.3
57.157.8
68
61.9
64.8
58.3
64.4
69.6
67.4
66.265.365.6
60.4
63.5
67
65.6
6362.163.163.1
59.4
68.4
71
64.9
60.3
67.8
63.5
61.3
66.8
61.8
67.4
63.563.1
60.4
68.5
64.6
69.868.9
70.1
72.271.7
69.370.1
64.2
71.2
61.9
70.570.5
696968.2
70.169.3
61
63.3
61.9
67.367.5
65.7
61.3
66.6
61.162.2
64.9
66.366.767.6
61.1
64.3
62.6
61.1
65.866.667.5
66.2
68.5
66.2
69.6
60.5
73.5
68.3
65.1
69.9
62.862.3
66.2
75.5
71.2
62.9
61
62.3
67.1
68.768.4
65.2
69.8
61
64.9
61.7
70.6
65.8
69.569.5
67.5
68.8
70.4
63.764.1
68.3
6564.7
66.6
72.8
66.8
69.4
64.563.6
67.7
73.5
68.1
66.8
73.8
64.9
71.6
62.6
70.2
65.5
71.4
67.2
71.8
6970.170.1
45
50
55
60
65
70
75
80
85
90
95
12:00 AM 12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/18/19 to 11/24/19 ‐Minute Intervals
D‐Mon D‐Tue D‐Wed D‐Thurs D‐Fri D‐Sat D‐Sun
Location D: Harbor south of 75
45
50
55
60
65
70
75
80
dBA
Time
Barrio Logan Nighttime Noise - 11/18/19 to 11/24/19 - LOCATION D
59.458.9
60.7
62.463.3
65.7
64.5 64.0
62.261.7
60.6
61.8
60.360.8
61.6
60.3
62.8
58.6
56.356.8
59.3
60.7
59.4
58.158.7
60.6
54.3
55.6
58.157.6 57.7
58.7
57.658.2
61.9
60.7
62.3
61.1
58.357.2
58.2 58.1 57.9 58.0 57.9
56.056.5
57.2
60.159.3
57.658.1
58.8
57.4
54.4
56.7 56.6
58.359.0 59.4
60.2 60.359.7
60.359.8 59.5
60.5 60.161.2
60.759.8
56.256.355.7
54.3
56.8
61.0 61.3 61.0 60.761.4
57.7
59.758.7
59.4 59.1
62.4
61.360.4
59.558.5
57.9 57.556.8
57.657.1
56.3
60.2
56.2 56.6
59.6
61.0
66.1
60.4
61.8
56.9
60.759.6 59.9
62.662.1
61.160.7 60.8
60.3
56.655.5
57.2
58.4
55.755.7
54.4 54.355.1
60.0
61.3
59.959.4 59.2 59.2
60.0
57.8
59.2
57.8
62.2
59.058.4
55.9
54.753.9 54.2
55.9 55.6 55.354.7
53.5
56.155.6
59.660.5
57.7
58.9
57.7
56.4
57.756.9
57.8
59.5
61.8
60.4
62.2
58.6
57.3 57.2
59.1
60.8 60.859.8
12:00 AM
1:00 AM
2:00 AM
3:00 AM
4:00 AM
5:00 AM
6:00 AM
7:00 AM
8:00 AM
9:00 AM
10:00 AM
11:00 AM
12:00 PM
1:00 PM
2:00 PM
3:00 PM
4:00 PM
5:00 PM
6:00 PM
7:00 PM
8:00 PM
9:00 PM
10:00 PM
11:00 PM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐ Hourly Intervals
E‐Fri 10/25 E‐Sat 10/26 E‐Sun 10/27 E‐Mon 10/28 E‐Tue 10/29 E‐Wed 10/30 E‐Thurs 10/31
Location E: Newton and Sicard
59.458.9
60.7
62.463.3
65.7
58.7
60.6
54.3
55.6
58.157.6
60.159.3
57.658.1
58.8
57.4
56.355.7
54.3
56.8
61.0 61.3
56.3
60.2
56.2 56.6
59.6
61.0
55.7
54.4 54.355.1
60.0
61.3
54.7
53.5
56.155.6
59.660.5
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐ Hourly Intervals
E‐Fri 10/25 E‐Sat 10/26 E‐Sun 10/27 E‐Mon 10/28 E‐Tue 10/29 E‐Wed 10/30 E‐Thurs 10/31
Location E: Newton and Sicard
59.2
57.357.758.157.357.457.556.957.4
58.6
64.6
57.5
56.155.655.254.75554.4
59.5
56.757.156.257
66.1
61.3
56.6
59.2
55.9
61.5
70.6
57.8
56.256.1
60.3
56.356.456.156.656.955.955.355.6
60.760.4
57.557.2
5959
60.261.2
59.4
57.65756.256.757.257.7
56.35655.756.256.8
58.9
61.8
69.5
58.257.157.5
61.160.460.2
57.958.459.5
61.662.663.3
59
57.156.156.3
57.5
55.855.656.757.857.756.9
58.457.356.9
59.559.758.759.859.958.8
56.1
54.9
57.156.557.157.456.455.5
5454.553.6
56.8
54.8
53
5554.455.2
57.8
55.45555.355.6
57.458.459.459.4
61.1
62.862.362.3
60.8
56.857.657.7
56.5
55.3
56.956.656.757.656.857.157.857.65757.1565756.656.657.5
55.655.956
57.458.358.5
71.171.8
57.957.358.357.757.957.958.758.457.8
60
61.861.160.760.359.259.4
58.258.958.758.758.7
57.357.256.357.356.356.957.157.157.958.258.358.358.4
59.259
63.4
60.26161.3
63.3
70.9
60.4
64.5
67.2
64.8
61.260.46060.160.2
59.260.159.159.359
61.9
59.960.6
59.459.1
60.560.560.261.261
59.760.460.9
62.7
64.3
72.2
62.362.361.962.161.961.661.6
63
61.360.861.861.861.9
60.360
62.462.362
60.5
62.3
61.1
62.361.762.263.262.4
69.5
63.2
66.6
63.263.8
62.461.86161.961.961.961.7
62.562.362.361.4
63.8
65.565.565.364.564.7
626362.662.963.5
65.664.864.9
6261.662.561.861.862
65.365.165.3
63
61.461.361.561.1
63.263.263.9
67.6
64
61.5
62.9
64.2
62.261.861.961.962.561.962.3
63.9
61.661.76261.862.2
64.3
66.466.7
65.566.5
65.265.464.5
62.5
65.2
66.8
65.165.765.264.4
62.7
6463.5
65.964.963.965
67.7
69
64.764.865.665.766.166.4
68.8
70.469.868.9
66.666.5
6967.967.8
70.1
66.2
68.3
58.658.157.157.558.6
61.46161.2
59.9
58.658.857.957.156.957.257.6
5756.557.658
56.255.855.856.9565655.956.857.2
65.9
57.5
67
55.95555.6
57.156.157.1
59
56.957.157.757.157.6
59.759.959.5
57.756.657.458.4
56.655.85554.754.155.154.155.1
64.7
67.9
60.8
73.2
55.155
57.8
56.555.855.454.7
55.955.955.1
58.5
73.1
60
54.655.556.2
54.154.354.8
56.3
54.754.7
56.355.254.854.454.854.6
53.754.154.554.2
56.155.754.75554.554.254.1
54.753.9
58.5
53.154
58
55.654.7
52.8
55.355.5
57.2
54.4
56.2
5453.454.554.654.855.455.4
53.2545454.4
55.7
53.25352.653.153.353.953.653.853.853.654
54.554.554.153.654.153.453.953.553.7
55.354.655.5
5455.154.154.453.553.453.653.5
5352.552.9
54.153.752.953.453.754.45554.7
5657.156.956.255.154.754.755.755.254.255.154.654.154.254.654.4
54.9
53.653.853.4
62.7
53.554.453.754.254.5
56.2
53.454.555.254.554.854.354.655.154.454.854.354.354.755.555.355.8
58.1
56.957.757.1
55.854.95655.255.755.655.955.255.1
56.355.855.454.955.555.655.454.9
56.356.556.355.655.955.455.954.9
56.656.3
59.9
55.856.256.455.655.555.455.5
56.4
55.155.155.155.3
56.757.656.957.156.456.3
60.7
68.5
54.954.9
56.3
54.8
5655.856.857.2
58.958.4
56.757.2
5655.956.457.1
63.1
56.355.656.15554.254.854.8
57.257.556.655.7
58.9
55.1
64
56.3
57.9
62.7
5958.858.7
5756.557.5
61.4
55.756.556.356.355.755
56.957.1
61.1
55.955.75555.256.357.1
59.1
57.4
54.8
57.8
59
56.1
57.458.357.757.157.757.5
60
57.1
58.6
56.5
58.259.360.2
57.5
62.3
58.357.757.357.5
59.5
56.555.956.456.857.6
55.8
5756.556.356.256.755.956.256.856.956.756.756.456.2
57.457.957.457.958.2
60
62.2
65
61.561.660.761.560.761.160.760.860.46060.259.9
60.460.360.36060.159.260.360.66059.658.759.859.759.159.858.8
60.560.8
66.4
59.259.960.159.4
60.7
59.259.158.858.758.357.9
59.158.758.558.759.659.259.85958.558.759.658.759.458.959.158.358.557.5
59.7
62.3
58.358.458.758.758.958.658.7
60.8
59.559.659.258.257.7
60.1
58.458.959.259.459.1
60
58.7
60.360.4
57.858.2
59.65958.757.7
59.458.859.860.259.759.259.559.159.5
60.660.2
58.758.9
6160.8
59.258.7
61.1
5958.257.857.757.457.6
59.4
57.957.557.358.258.559.1
56.757.457.257.4
56.156.557.55857.256.857.456.857.156.956.356.456.256
56.657.457.157.256.7
57.957.258.257.357.257.9
56.6
58.658.357.857.4
58.758.257.55757.357.757.157.5575857.357.1
58.4
56.957.657.357.957.657.1
58.8
57.358.158.457.657.758.358.258.559.560.3
58.558.75958.759.358.8
60.561
58.259.358.558.358.5
5857.957.457.658.157.357.758.3
56.656.5
57.857.256.6
59.6
56.656.555.856.556.657.556.5
55.2
56.6
58.35858.9
57.5
59.158.4
57.256.656.457.457.6
55.8
58.557.857.3
60.3
5859.158.458.158.258.758.959.559.7
58.558.858.458.959.659.8
61.3
58.359.159.4
60.6
58.858.1
59.559.1
61.5
58.658.157.9
59.158.758.85959.8
58.258.459.45959.259.8
57.957.25858.659.2
60.7
59.159.258.157.6
59.1
60.4
57.757.757.4
60
57.5
59.759.1
57.458.258.357.857.457.357.1
58.8
56.7
58.157.757.557.657.8
5958.557.457.55857.35757.857.557.8
56.656.1
5857.156.2
62.9
57.3
5656.7
5555.356.4
5554.55554.954.8
56.255.9
54.354.955.256.356.255.354.7
55.9
54.154.854.7
57.2
54.954.854.453.653.954.354.853.854.954.354.2
57.3
55.9
54.554.9
56.857.257.1
55.154.454.5
56.456.355.455.155.254.7
56.1
54.9
56.556.3
59
55.255.555.9
57.658.758.358.7
57.157.7
60.9
58.5
5756.755.655.355.555.255.2
57
59.1
57.856.8
54.654.2
56.4
54.75554.9
56.1
57.6
55.954.8
565757.257.9
55.956.556.456.7
58.258.7
57.3
55.155.9
53.4
55.6
5454.954.153.2
54.555.5
53.654.154.3
56.1
54.9
5354.1
55.4
53.5
55.5
53.55454.655.255.356.455.6
58.7
52.7
55.254.455.555
53.153.6
60.9
57.9
55.154.754
56.355.755.555.9
54.655.654.655.255.154.9
56.8
55.554.553.553.553.254.35454
52.5
54.153.752.853.853.654.2
55.4
52.5
54.4
58.5
53.1
60.7
54.5
52.7
5554.6
52.853.353.652.753.253.8
52.553.254.1
52.751.7
53.353.552.751.952.5525352.8
54
52.852
5453.6
52.4
55.4
52.2
53.854.954.85454.3
56.255.154.354.353.954.354.15454.4
54.755.1
57.357.2
61.9
56.757.4
55.2
57.7
54.954.755.556.5
60.6
55.6
56.8
55.35555.6
57
55.3
57.9
56.2
57.5
54.954.6
56.6
54.955.1
58.7
66.5
60.3
5554.554.954.755.1
56.955.9
57.6
54.254.854.155.1
57.256.355.6
65.4
56.356.155.755.4
56.6
54.5
56.255.355.854.955.5
56.8
61.3
55.856.956.755.9
57.456.9
61.2
66.7
68.969.4
68.2
57.557.757.7
59.2
64.1
61.1
59.2
57.957.758.8
60.760.3
58.557.5
58.9
61.5
59.158.358.359.1
63.2
59.1
57.5
59.3
61.6
63
59.7
61.1
64.7
62.3
57
58.557.558.5
67.1
68.9
70.9
59.259.358.759.558.6
62.2
58.358.558.458.358.357.6
60.4
59.259.8
62.7
59.359.558.8
60.2
58.758.959.159.1
61.2
65.1
57.558.658.358.658.3
57.6
58.958.5
62.261.3
58.558.5
62.1
58.658
64.4
58.1
66.4
57.357.1
64
57.556.657.758.1
56.4
59.5
58.357.657.8
62.8
54.755.454.354.655.156.155.355.2
56.655.95555.255.955.9
58.6
60.6
55.25555.954.8
58
63.4
55.6
56.857.1
55.155.255.255.254.654.354.3
56.255.755.4
56.7
59.7
56.655.755.956
55
56.4
57.957.857.1
55.755.856.6
54.454.153.554.554.35554.3
56
54.254
57.1
54.2
56.3
59.4
68.9
64.5
55.554.954.6
53.252.553.153.552.953.6545453.753.9
55.2
53.453.453.854.255.2
58.5
54.655.755.355.856.455.754.955.255.955.956.356.6
71.372.1
60.4
55.655.956.656.8
60.4
57.7
55.9
57.756.755.756.155.155.756.356.4
60.8
58.3
55.154.454.954.154.555.654.65554.753.8
57.3
55.255.255.554.855.355.455.955.255.955.354.955.255.4
57.256.556.656.4
57.757.2
55.3
57.6
61.662.1
55.955.955.2
53.5
55.455.155.6
54.254.854.855.755.255.955.554.954.454.554.755.255.755.4
62.6
54.755.454.654.855.755.555.756.8
54.954.1
55.354.5
56.855.756.3
54.754.754.854.755.255.455.154.855.254.9
62.9
55.4
53.853.454.355.3
57.4
55.45656.456.1
57.6
56.1
64.8
54.7
55.956.255.8
575655.7
5856.9
55.155.65555.355.5
57.4
55.655.255.756.356.657
5656.2
57.456.557.157.15756.456.756.557.257.656.6
5857.357.156.957.4
59.2
62.4
58.959.558.759.4
57.5
56.356.8
62.8
58.5
59.8
58.359.258.4
57.157.657.55858.4
61.9
69.4
57.556.65756.156.6
63.3
57.358
63.6
57.557
58.2
56.457.4
58.758.8
56.8
59.660.3
56.4
58.158.9
60.9
63.1
61.4
58.358.4
61.7
57.9
64.5
59.158.8
57.1
5958.5
60.4
57
58.5
62.3
60.7
57.9
60.8
67.7
60.15959.3
63.7
59.559.5
60.8
58.658.7
57
58.958.1
60.559.560.5
58.5
62.7
58.159.158.859.859.659.959.5
62.6
66.7
59.5
62.3
60
58.158.858.5
59.9
67.4
63.4
62.1
58.759.3
57.8
59.1
62.4
61
63.2
58.358.5
54.355.354.5
52.2
53.854.154.355.255.554.45454.755.3
54
56.355.254.956
54.354.655.354.454.754.3
55.85554.5
5655.656
54.454.554.955.654.553.654.7
63.7
54.355.4
57.7
555454.7
63.9
55.7
54
55.7
53.7
56.3
53.654.355.4
53.753.853.654.153.9
55.454.753.6
58.5
63.2
55
52.953.953.953.6
55.5
54.253.75353.453.753.6
55.6
53.153.9
52
53.253.652.653.4
56.9
61.8
52.4
53.8
52.651.952.952.151.5
53.753.552.852.452.152.3
53
56
52.452.252.2
55.4
52.652.552.3
5151.952.352.552.4
51.6
56.5
525352.952.552.552.953.352.952.9
51.951.452.452.853.252.5
60.5
55.2
5251.4
53.853.85353.452.552.35353.152.652.752.253.152.2
55.2
52.3
54.553.8
63.4
52.853.9
57.4
54.655.3
54.153.453.553.1
51.952.452.552.152.853.252.3
56.1
52.553.452.5
54.1
56.8
54.853.752.9
54.354.8
52.652.452.953.7
55.555.1
53.152.7
55.9
54.2
64.3
59.8
55.454.354.45454.855
62
53.253.6
54.9
57
54.454
52.752.453.25352.852.9
54.754.9
53.5
54.755.154.655.455.556.155.155.9
54.455.254.455.555.356.255.655.454.85453.853.552.8
54.653.5
56.4
54.954.754.2
57.6
55.354.755.655.554.455.155.15655.655.8
61.6
55.5
54.1
55.455.1
58.357.457.256.7
59.559.460
57.658.6
61.462.1
57.3
59.7
58.458.357.6
66.5
59.1
71
61.462.3
605958.359.2
63.1
56.556.3
58.457.956.9
58.258.2
56.8
65.6
57.958.657.756.7
58.358.758.1
59.3
57.758.457.95958.557.5
62.1
57
58.358.9
65.1
60.1
57.6
62.2
58.858.859.5
57.7
58.9
63.1
59.159.960.260.360.159.960
64
59.759.259.559.1
62.7
59.3
6160.4
64.9
60.7
59.5
62.3
58.7
65.8
58.758.6
59.859.4
62.7
59.160.1
61.461.7
65.2
69.1
59.7
58.3
65.6
59.5
57.6
62.1
59.258.7
60.5
58.4
55.454.453.653.75454.954.755.554.453.953.854.6
52.4
54.153.953.753.854.753.952.853.254
59.2
55.154.255.155.456.155.454.955.455.454.35555.1
57.1
54.9
56.55657.1
58.857.7
55.154.555.355.154.7
52.352.753.3
51.6
53.453
51.551.3
53.352.352.352.752.752.452.7
54
51.651
53
54.9
52.7
65
60.2
53.1
51.151.451.75151.4
54.5
50.851.251.350.85150.851.750.950.651.6
5050.550.950.35151.651.651.6
53.2
51.551.551.751.5
52.7
54.4
51.3
49.9
51.451.1
55.4
50.651.151.951.150.4
52.9
56.8
53.6
50.650.750.750.85151.7
58.3
62.2
53.1
51.451.651.150.951.451.1
53.8
50.3
58.1
51.250.15150.550.750.951.351.2
51.8
53.252.75251.8525353.3
51.55151.751.6
62.7
61.2
55.1
51.452.552.352.752.4
53.653.4
5251.8
53.252.852.653.3
55.8
53.6
52.1
54.5
58.6
52.752
53.8
69.2
55.9
52.252.3
54.1
51.952.452.252.753.853.4
54.755.3
5453.654.653.7
54.954.3
58.659.7
51.5
53.9
60.1
52.2
53.554.254.15555
57.7
54.254.4
55.6
52.9
55.855.254.353.453
54.9
56.355.656.156.6
54.6
53.152.653.553.553.1
5251.352
54.7
65
56.255.354.754.4
55.855.4
60.159.4
60.9
59.15858
61.2
59
57.858.8
57.5
65.5
56.2
58.75857.156.65757
55.854.9
60.8
54.2
57.45858.25858.557.5
59.2
62.9
61.361.8
58.957.9
59.2
61.1
66.7
64.1
56.656.557.3
5656.3
59.2
56.8
61.8
56.356.456.9
59.2
57.9
63.4
59.4
5856.9
61.9
56.357
63.9
57.256.3
60.8
59.4
66.1
56.5
67.7
62.9
56.1
58.3
64.7
59.2
60.6
56.956.556.757.756.8
5958.558.7
55.7
57.958.759.7
57.6
56.456.3
55.1
56.3
5858.4
63.3
58.7
575757.557.6
62.262.2
57.558.3
56.6
58.959.658.659.3
63.5
56.5
65.7
59.9
62.5
57.8
56.557.1
55.7
57.3
69.6
55.855.8
60.1
55.9
45
50
55
60
65
70
75
80
85
90
95
12:00 AM 12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐Minute Intervals
E‐Fri 10/25 E‐Sat 10/26 E‐Sun 10/27 E‐Mon 10/28 E‐Tue 10/29 E‐Wed 10/30 E‐Thurs 10/31
Location E: Newton and Sicard
45
50
55
60
65
70
75
80
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
dBA
Time
Barrio Logan Noise - 10/25/19 to 10/31/19 - Location E
58.0
53.9
56.9 56.7
60.0
62.6
61.1
56.5 56.157.2
60.6
61.7
55.855.1
56.0
59.2 59.2
61.3
57.1 56.855.8
57.6
62.8
60.8
55.5
56.757.1
58.459.5
61.0
52.953.6
53.1
54.8
58.7 59.1
55.6 56.0
58.259.1
60.4
61.7
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/11/19 to 11/17/19 ‐ Hourly Intervals
E‐Mon 11/11 E‐Tue 11/12 E‐Wed 11/13 E‐Thur 11/14 E‐Fri 11/15 E‐Sat 11/16 E‐Sun 11/17
Location E: Newton and Sicard
5352.753.252.6
55
59.2
54.9
52.752.2
5151.451.1
52.953.2
51.351.552.152.8
55.4
52.953.754.654.954.954.9
55.555.9
54.75454.5
5352.9535453.253.253.354.3
5352.9
54.5
64.463.5
66.366.565.965.5
60.2
53.7
62.362.2
52.451.7
57.8
55
52.152.452
53.754.4
52.852.853.252.2
67.1
56.4
51.952.552.352.152.252.552.3
52.8
59.9
52.452.251.651.351.650.650.450.850.45050.3
48.649.250.350.450.250.6
4948.748.849.248.548.5
51.3
49.94949.749
55.8
48.8
59
48.849.648.548.9
52.4
48.748.748.4
55.454.8
49.249.649.449.74949.849.148.448.3
49.7
54.3
49.95150.851.551.451.351.3
50.8
59.5
50.250.750.8
52.752.851.9
53.553.2
51.552.3
55.555.7
53.4
56.3
53.454.2
55.8
54.353.7
5554.153.753.553.3
56.456.4
54.453.553.754.3
57.5
71.8
56.7
55
53.654.453.9
55.754.9
53.653.753.353.152.753.653.2
55.3
53.753.453.653.153.1
54.3
63.2
54.3
53.152.252.853.9
55.155.8
58
54.754.75454.253.153.853.4
5554.154.754.3
55.655.7
57
55.454.9
63.5
56
54.2
55.855.8
60.6
56.655.8
58.257.156.8
61.9
53.2
55.354.7
52.9
555453.3
55.1
56.456.9
65.9
55.155.25554.353.9
56.3
68.3
61.9
5554.9
64.4
56.5
59.5
61.3
54.555.255.3
59.5
56.2
60.9
58.1
56.357.4
68.5
59.8
55.9
58.7
70.6
55.755.855.955.856.856.556.4
59.3
54.255.156.2
62.6
60
54.9
63.1
55.3
52.7
54.855.8
53.452.8
55.454.8
53.553.3
56.755.9
54.3
58.7
56.7
55.1
56.357.2
63.4
56.1
53.5
57.156.1
59.458.758.7
62.1
66
59.659.4
60.9
58.758.459.159.158.757.65858.6
61.1
58.759.259.1
62.8
60.260.1
57.7
60.3
57.8
59.4
57.5
55.4
57.9
62.5
58.159.158.258.1
76.9
71.3
61.3
59.6
57.657.356.3
58.8
56.155.2
61.4
55.3
56.7
6059.7
57.157.85859.1
55.756.455.756.4
57.1
55.8
57.2
55.955.6
60.7
72.5
56.956.5
58.659.1
56.356.9
58.358.2
62.663
73.5
56.155.755.556.157.256.5
64.1
58.2
56.756.756.656.956.457.2
55.856.356.856.857.657.957.1
59.659.1
60.8
5857.858.358.559.25959.9
58.357.257.156.855.955.956.755.855.155.154.3
57.1
55.755.3
56.556.1
65.1
56.6
58.657.7
56.15655.8
54.555.355.255.455.8
58.8
65.5
64.2
56.5
53.152.55354.154.4
5352.452.2
53.9
52.452.551.9525252.151.6
53.4
52.152.552.152.15251.552.6
51.251.3
56.256.4
53.3
50.850.851.1
54
51.3
63
54.7
51.151.2
54.6
71.8
53.9
5150.9
53.3
51.6
54.7
51.851.351.5
52.9
51.75251.851.351.252.351.951.952.35251.6
52.6525251.852.951.851.951.752.6
51.451.151.450.95150.951.9
50.75151.351.550.9
52.4
51.2
52.6
50.550.7
52.3
51.151
54.3
50.850.751.250.6
52.2
55.3
51.4
53.554.2
68.5
52.1
50.950.5
52.8
50.650.450.150.551.3
5352.1
54.554.453.553.452.6
51.4
55.2
63.2
51.7
55.2
52.352.352.3
54.5
52.352.452.951.852.853.3
56.2
57.4
54.755.7
54.2
52.8
58.1
53
51.8
5352.753.552.8
61.9
55.654.6
59.9
53.954.4
60.3
58.5
56.657.1
66
61.5
54.454.754.454.354.8
62.5
57
54.45554.7
57.6
56.4
54.353.6
65.4
53.4
68
5454.754.853.7
58.557.957.2
61.461.160
55.4
66
68.6
61.2
57.957.2
65.9
61.1
57.457.657.8
61.7
58.159
63.1
59.45958.458.6
64.8
63.5
58.8
60.459.860
63.4
60.4
58.258.5
55.656
57.757.1
58.9
60.460.259.3
62.8
65.2
59.8
54.8
56.2
54
64.3
56.3
52.653.6
59.7
56.1
66.1
55.8
58.4
54.9
56.656.3
62.2
55.5
61.6
57.157.1
61.1
57.556.7
60.4
57.9
59.1
56.4
58.5
57.1
60.6
5756.556.856.856.4
64.9
61.261
63.3
57.8
59
65.6
57.1
61.2
74.5
56.2
59
57.358.258.8
56.456.4
66.9
57.6
63.963.9
51.65252.152.45251.751.551.9
53.752.652.452.7
53.95453.453.354.254.854.755.655.856.757.258.257.55757.156.2
54.754.7555554.955.154.9
53.7
51.851.151.851.752.2
63.5
56.5
5353.153.1
55.2
53.352.552.5
56.4
53
55.9
53.653.7
66.6
55.9
53.653.253.753.553.453.253.553.754
52.852.953.653.752.953.2
57.157.857.656.656.1
54.9
59.2
54.2
52.452.652.2
62.2
52.452.55352.752.652.652.752.952.6
52.152.552.552.5
64.9
55.4
51.751.652.75251.8
55.7
57.8
53.5
55.9
52.952.152.152
5453.9
52.1
54.6
52.652.252.6
55.2
63.7
55.4
51.651.4
58
68.1
545554.7
60.5
53.452.852.852.853
53.65454.9
53.75453.452.952.352.852.35251.752.152.3
53.5
55.355.8
54.253.453.5
56.8
55.454.453.9
52.553.4
5252.151.852.853.254.154.4
5251.75251.751.852.453
55.256.155.155.656.7
58.459.4
55.655
56.7
55.155.355.2
59
57.15655.655.956.456.956.6
59.2
55.756.1
61.7
57.9
70.8
60.7
56.656.25756.3
66.7
57
55.755.455.75656
58.3
55.4
57.15655.955.855.8
62.5
66.3
55.955.956.757.15656.156.756.456.4
585756.355.955.7
56.955.8
57
58.8
56.456.556.75756.857.356.356.257.2
55.756.456.557.557.1
63.9
61.3
58.557.958.8
64.6
58
55.8
57.958.7
56.8
5958.358.7
56.2
57.457.858.757.9
62
57.457.557.1
62.5
66.7
57.95857.657.7
60.4
57.757.858.658.3
63.5
57.8
595857.858.557.8
61.8
58.358.5
6059.9
57.6
56
58.95857.5
55.95656.8
63.7
69.5
57.8
55.9
60.960
69.1
58.758.357.9
59.8
5858.859.758.7
60.361.1
58.7
65.5
59.1
61.3
57.957.7
61.6
59.9
57.257.2
60.9
56.8
58.1
56.957.557
66.8
58.859.3
57.557.2
69.1
60.5
62.6
57.3
60.2
58.3
57.158
59.7
65.6
6160.6
57.757.758.1
56.856.656.556.856.455.755.9
58.6
56.757.7
56.256.756.1
57.6
63.3
55.655.455.755.654.755.154.854.955.255.4
54.855.455.254.654.855.755.2
56.6
55.356.356.555.8
57.8
56.155.95655.656.356.556.957.257
58.258.457.958.6
59.959.558.958.658.658.858.9
59.959.958.958.758.257.557.457.157.557.1
57.857.6
56.356.7
58.258.658.3
56.957.658.157.456.957.356.956.356.955.955.356.255.354.254.454.954.8
59.5
54.755.154.855.655.154.454.755.555.555.2
53.854.453.6
58
53.753.453.753.9
56.3
54.1
52.9
63.8
57.8
53.5
56.3
53.8
56.4
5554.754.1
55.3
59
56.1
54.754.454.554.754.354.254.754.7
55.955.355.75655.955.455.6
58.859.258.3
56.857.1
58.6
56.155.7
61.5
5755.955.454.554.455.554.954.6
56.2
54.454.554.654.755.154.954.654.2
55.654.755.254.354.355.255.2
5453.453.653.553.954.3
53.55454.453.353.754.355.1
53.653.453.4
70.1
54.754.65454.453.8
55.8
58.458.9
55.2
62.5
54.45554.754.154.754.355.15554.454.355.456.2
60.8
55.154.7
56
54.854.3
56.255.856.2
54.955.1
59.5
54.755.456.2
64.1
54.855.755.254.354.954.7
59.3
54.454.754.755.356.355.9
57.3
54.955.3
59.2
56.6
59.359.6
66.6
55.4
58.2
6160.4
68.2
58.357.657.9
55.555.655.3
56.7
67.8
59.1
61.9
55.4
60.1
58.5
55.3
57
62.3
55
57.457.3
59.1
56.2
54.6
56.256.9
64.3
5656.3
59.7
55.7
59.258.3
56.8
62
64.2
76.6
68.4
61.1
59.960.359.5
58.358.359.1
66.8
63.9
6060.9
59.6
58.459.359
57.75857.8
65.164.8
55.5
57.1
61.7
58
65.9
60.3
5857.7
62.9
65.9
59.459.658.5
56.557.2
60.5
55
58.6
57.157.9
61.7
59.659.6
61.961.2
66.6
58.2
63
59.359.1
61.1
58.9
57.458.3
60.8
58.8
61.8
66.7
58.1
60.1
57.5
56
61.7
58.258.4
59.9
57.8
55.855.8
54.553.653.753.7
56.355.555.6
57.458.3
56.755.85655.755.5
54.755.255.7
57.7
54.954.75453.953.853.854.454.454.855.154.8
63.5
57.2
55.254.454.654.154.254.254.955.455.25555.9
54.455.554.554.253.95454
58.1
54.454.254.354.354.754.954
56
5453.7
58.3
54.655.6
62.3
67.8
55.4
53.6
55.356.4
55.254.55454.75453.854.7
53.253.654.25454.554.554.355.154.653.8
55.754.654.353.953.2
54.9
53.352.853.4
55.954.954.755.5
5454.45555.9
57.958.758.4
5555.655.955.856.55656.5
59.1
55.95656.855.955.455.9
58.458.8
57.457.657.5
56.256.156.156.556.456.2
58.2
57
55.455.656.255.756.856.556.256.6
54.853.754.1
64.8
5554.354.453.85454.2
5655.9
65.164.7
58.559
55.554.554.153.95454.2
54.654.954.253.554.653.954.453.6
55.1
53.454.555.255.455.4
58.2
55.955.2
56.456.556.357.1
55.855.856.957.957
55.255.355.95655.955.65655.956
64.8
58
63.4
56.957.5
55.8
57.95756.8
54.655.2
59.8
55.454.753.8
56.1
59.9
63.8
5858.158.5
56.456.156.756.256.4
58.858.157.5
59.1
57.356.7
57.957.756.957.157.457.7
59.158.5
66.5
60.6
58.95958.558.459.5
57.658.7
59.959
56.9
59.7
65.7
64.2
58.258.158.6
59.860.159.1
57.4
60.759.859.458.658.2
59.6
63.4
55.2
57.2
55.356.255.9
62.4
58.7
56.3
57.6
61.8
57.958.2
62
56.456.8
54.4
60.2
58.6
59.9
56.857
59
61.6
55.4
59.1
57.358.2
59.6
57.1
60.1
58.359.2
63.1
58.458.7
66.2
63.8
56.9
59.5
68.4
59.2
57.657.7
60.5
65
59.558.7
68.8
65.2
57.5
59.559.4
57.9
63.8
56.5
58.85859.1
57.8
60.359.358.259.1
62.462.7
59.3
57.7
61.5
56.8
55.1
59
57.658.6
57.3
58.659.2
60.9
57.3
65.9
58.559.56059.7
57
64.5
58.8
57.1
61
57.357.957.657.9
54.754.754.454.454.254.15453.953.753.352.8
54.754.254.6
52.652.25252.25352.352.252
53.453.2
51.7
54.7
51.551.450.951.652.152.152.352
51.4
52.751.8
54.2
51.751.851.751.951.7
57.2
53.3
51.551.951.651.7525252.2
53.8
51.752.452.852.452.452.4
53.152.652.853.252.952.8
53.653.153.953.552.852.652.952.753
53.752.852.853.4
51.952.6
54
52.65352.751.951.35252.252
53.553.352.2
53.952.9
51.752.353.153.6
51.852.252
54.3
5251.351.752.8
62.6
56.6
60.1
52.1
50.951
55.1
51.251.351.451.651.551.651.751.351.5
52.853.6
51.752
53.252.55251.452.252.751.852.452.552.152.652.753.2
58.5
52525252.8
58.8
53.652.852.852.152.151.851.8
53.7
51.952.452.752.8
5252.151.851.951.751.552.252.151.851.752.1
54.1
52.352.253.252.452.65252.953.754.15454.454.4
55.25555.155.254.654.554.554.6
64.5
55.255.356.4
55.154.754.953.953.253.354.153.653.754.455
53.453.153.4
55.8
53.353.2
56.4
53.8
55.8
59.4
53.753.853.653.754.654.854.555.254.254.45453.6
54.855.255.3
54
56.2
53.854.555.655.754.854.854.654.254.3
54.955.455.85555.45555.555.154.754.5
5555.2
56.556.357.3
5656.156.5
57.7
5555.955.4
58.1
55.955.955.555.7
59.9
69.7
68.1
56.556.5
54.455.354.5
56.757.7
5655.855.155.2
59.2
5655.4
54.154.1
56.756.7
60.6
55.555.25555.4
57.3
54.8
57
65.5
59
55.8
59.1
57.1
55.254.754.7
5757.2
54.254.1
57.2
63
54.45553.954.954.1
58.4
62.3
56.9
55
57.3
62.4
56.155.556.155.8
58.357.9
55.955.9
62.1
55
56.4
58.5
56.957.357.957.1
55.6
57.357.5
60.5
55.1
56.356.556.455.956.556
57.4
71.7
56.45655.555.655.8
57.6
62.3
55.2
60.2
57.3
55.2
59.459.4
56.456.657.256.555.956.9
55.454.955.3
57.7
55.355.95655.855.155.755.654.855.556.256.456.556.9
55.555.55554.454.45554.954.754.954.3
57.4
54.754.25554.154.453.954.454.5
55.855.655.554.754.955.255.555.555.455.5
54.855.555.756.3
59.2
54.855.155.456.2
54.653.954.454.6
56.355.255.255.255.655.255.1
55.756.8
5555.855.455.956.256.7
58.1
55.455.555.955.655.655.956.355.955.755.9
54.754.755.155.655.756.856.756.7
55.556.555.755.8
57.4
59.1
56.557.1
55.956.856.456.8
5655.956.356.6
55.355.156.156.357.357.557.757.6
59.159.659.2
56.756.657.456.756.8
58.4
56.456.8
59.2
57.356.8
58.457.8
59.6
65.6
57.456.656.755.656.757.757.256.956.256.257.257.257.457.658
58.858.758.958.9
61.661.3
59.55958.758.758.257.558.357.657.356.756.456.156.7
58
56.856.557.257.857.95958.759.359.5
58.157.757.957.456.456.156.456.356.556.956.856.957.2
58.158.759.759.9
61.360.960.559.959.659.15958.859.459.9
61.4
60.260
58.85958.8596059.56059.5
58.358.458.558.858.658.659.26058.959.659.759.959.759.8
60.7
62.2
5958.95858.359.158.75958.758.658.2
59.5
61.461.4
59.8
62.862.461.3
57.5
59.1
68
59.6
58.457.858.459.459.360.460.4
58.558
59.4
60.961.360.460.459.960.760.660.560.260.1
61
62.4
63.66463.7
59.9
58.458.1
59.5
61.860.760.3
58.857.757.65858.1
56.256.2
58.1
60.7
59.360.361.361.1
59.258.858.958.258.158.85959.459.959.659.9
595858.358.358.258.859.960.7
59.559.160.2
69.2
61.26261.961.861.661.761.461
63.1
61.362
63.46463.963.162.762.7
65.6
62.36261.361.8
63.6
6161.5
63.1
61.561.1
62.562.862.963.463.4
45
50
55
60
65
70
75
80
85
90
95
12:00 AM 12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/11/19 to 11/17/19 ‐Minute Intervals
E‐Mon E‐Tue E‐Wed E‐Thurs E‐Fri E‐Sat E‐Sun
Location E: Newton and Sicard
45
50
55
60
65
70
75
80
dBA
Time
Barrio Logan Nighttime Noise - 11/11/19 to 11/17/19 - LOCATION E
59.9
54.7
56.857.9
59.8
65.3
60.960.2
57.2
60.459.8
62.061.4
62.7
60.3 60.761.3
63.3
61.7
56.0
58.1 58.359.4
61.5
55.5
56.757.1
58.459.5
61.0
52.953.6
53.1
54.8
58.7 59.1
56.956.3
59.059.5
60.861.4
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/18/19 to 11/24/19 ‐ Hourly Intervals
E‐Mon 11/18 E‐Tue 11/19 E‐Wed 11/20 E‐Thur 11/21 E‐Fri 11/22 E‐Sat 11/23 E‐Sun 11/24
Location E: Newton and Sicard
5757.258.258.358.158.659.459.360.360.7
62.5
60.160.360.961.1
59.460.160.861.661.662
64.5
67.6
65
68.3
62.1
58.3
57.156.957.257.156.4
57.858.157.256.8
58.557.657.357.356.856.656.8
58.158.458.357.757.1
54.9
59.5
57.3
53.653.453.8
55
53.1
55.255.6
54.4
52.853.454.15453.2
55.3
53.7
52.453.254.354.553.553.953.652.75353.153.6535354.155
52.853.553.754.453.954
55.3
56.7
555453.7
55.5
54.255.154.653.953.253.25453.653.854.154.3
56.6
54.2
56.256.5
54.354.85555.555.755.5
57.357.9
56.557.558.5
55.856.556.857.957.2
55.254.655.456.457.356.756.756.957.457.557.5
61.5
58.457.957.758.358.457.557.156.756.356.356.456.1
55.656.156.2
59.5
55.355.35555.65555.555.25555.654.855.355.155.1
63.3
55.95555.654.8
56.656.355.655.555.6
5555.4
57.556.9
55.254.754.655.456.257
58.257.857.958.1
59.85958.258.8
5757.4
55.5
5756.155.1
56.5
61.5
57.456.957.256.756.555.856.356.8
55.5
5756.456.857.558.2
56.4
57.957.958.458.759.559.158.458.9
60.1
64.6
60.4
58.157.9
56.756.957.957
58.6
56.657.257.15757.1
57.758.258.3
65.8
56.657.2
63.7
57.1
58.7
61.26160
62
60.3
57.6
58.9
64.5
59.458.459.4
58.257.957.7
61.1
57.356.456.9
5958.3
61.3
57.157.157.4
59.159.358.8
57.3
58.5
61.3
58.358.458.958.159.158.7
57.558.3
61.2
57.356.9
58.859.258.3
64
57.958.158.7
56.957.558.2
66
69.1
58.8
75.3
5959.1
62.8
66.4
60.560.7
62.9
64.8
63.5
59.660.459.659.3
65.1
61.3
64.3
65.5
60
63.6
60.4
626261.662.1
60.2
68
61.761.161.460.4
65.5
68.9
62.963.763.4
67.3
6161
64
59.660.6
76.4
62.1
60.660.360.6
66.7
65
68.9
61.161.1
64.3
60.9
62.361.761.5
55.756.4
58.9
57.757.65857.658.457.9
59.15959.158.7
66
59.5
61.9
59.9
72.6
60.6
58.258.458.1
62.7
58.957.85858.157.957.657.65857.657.857.957.958.3
62.3
59.560.159.9
58.55958.2
59.4
60.860.1
58.658.8
6059.8
6162
64.9
63
61.260.2
5857.357.257.658.5
56.956.456.556.755.956.555.956.356.156.156.156
54.8
56.255.955.4
69.5
65.7
56.8
60.4
61.8
63.5
60.760.1
58.7
5756.556.8
59.3
55.755.25555.355
54.4
55.755.8
54.254.754.654.3
56.3
60.3
58.3
65.465.3
69.7
57.657.556.556.7
59.458.557.8
59.559.5
57.557.6
65.4
56.7
59.159.258.157.656.8
59.3
57.957.556.756.256.557.357.758.257.557.357.757.8
5656.7
55
57.8
54.855.1
56.957.857.9
64.3
55.155.556.55757.45757.8
62.1
57.357.3
5655.5
60.4
54.754.654.35554.253.754.654.6
58.6
54.854.9
56.6
55.154.655.155.255.756.155.854.9
59.4
54.254.455.155.154.655.155.655.1
56.757.7
55.856.555.5
57.1
55.555.755.555.9
64.263.1
66.2
57.9
61.5
57.6
55.556
54.8
56.356.7
58.75958.659.458.958.558.458.658.3
59.259.5
67
60.961.361.361.562.261.8
63.8
69.4
56.7
64.3
5858.258.557.8
60.359.6
64.7
57.357.656.957.257.2
58.8
57.658.4
57.1
59.259.1
62.6
57.9
56.557.456.956.857.457.9
59.258.357.758.458.558.658.358.358.6
59.959.959.8
61.1
59.458.758.3
60.4
58.459
61.1
58.859.458.959.460
61.4
59.460.3
66.1
59.8
58
60.7
58.1
63.5
66.5
59.7
58.257.6
60.1
63.1
57.9
59.458.5
68.2
57.65858.258.959.258.458.3
59.9
62.2
66.9
59.2
60.5
59.159.3
61
65.6
59.6
61.2
63.9
60.960.959.960.4
59.258.859.1
60.9
58.8
62
59.259.4
61.5
59.5
68.7
57.758.458.258.459.459.259.8
72.8
59.159.459.258.159.158.459.559.959.860.760.961
59.159.4
61.962.3
63.9
59.259.3
60.7
58.3
60.259.359.858.859
60.66059.759.960.759.859.660.159.5
60.860.260.6
64.5
61.361.261.6
60.16059.8
62.3
63.7
61.1
63.363.7
62.562.663.6
60.2
66.6
65.2
66.4
64.6
59.4
61.961.760.861.161.2
59.760.5
61.762.5
6060.260.159.658.558.359.158.858.659.159.2
62.1
59.8
71.471.9
64.6
59.960.4
58.958.1
59.458.458.259.159.658.558.458.258.158.2
59.56059.560.4
63
59.859.860.659.5
57.657.6575757.5
59.2
60.9
62.162.561.9
64.6
6363.864.564.364.463.864.364.764.764.264.365
63.463.1
60.9
59.560.359.759.659.1
57.656.857.557.8
59.158.85858.75858.157.8
56.156.256.457.4
59
61.3
57.6
60.9
63.5
58.7
57.3
58.9
57.557.85757.957.457.157.757.957.358.1
59.6
5858.157.758.758.258.358.1
71.5
59.960.360.96059.559.159.859.559.758.759.6
57.758.858.3
62.2
67.8
58.8
63.5
60.660.5
62.161.3
59.859.36060.660.360.760.960.9
63
60.960.8
62.3
60.560.659.9
61.460.459.4
61.461.6
63.6
61.2
62.962.862.1
60.16160.8
62.3
616059.9
61.1
62.5
59.259.358.458.659.459.35958.558.2
60.6
58.858.859.15959.760.760.259.459.658.8
60.359.260.1
62.2
58.8
60.7
59.359.760.459.559.959.259.159.259.359.1
60.660.5
58.858.157.958.758.858.659.46060.660.2
58.758.959.3
61.4
59.2
60.760.5
63.1
61.762
59.1
60.761.561.7
60.5
63.6
61.760.660.560.961.3
64.4
67.468.1
64.6
61.360.5
63.4
60.86161.66160.9
62.4
6161.361.6
68.1
61
64.9
60.260.960.461.2
59.8
6161.961.761.7
63.3
61.1
63.463.762.862.4
61.161.562.2
63.862.862.8
67.7
64.8
67.8
61.862.3
64.6
62.962.162.261.5
63.663.6
62.163
61.862.661.9
63.462.562.8
67.9
62.663.263.264.363.863.6
64.964.7
63.4
62.161.8
57.7
61.4
55.655.455.6
58.457.4
55.455.7
58.8
54.454.7
57.1
55.954.853.754.554.9
60.560.561.6
63.3
66.1
63.1
58.9
66.7
71.7
69.8
64.363.6
61.961.660.7
59.258.95958.858.858.2
5756.5
59.4
61
62.262.2
63.864.463.8
62.562.261.562.2
60.959.859.9
56.855.855.355.454.454.554.9
53.153.553.6
57.9
62.9
61.3
54.553.45453.452.552.853.153.7
59.1
65.7
54.253.353.4
54.6
60.5
55.4
53.653.953.853.353.7
56
53.453.353.3535453.653.2545353.452.653.253.1
54.5
57.3
53.453.153.453.7
58.1
53.6
59
53.453.954.454.2
55.7
5454.253.853
54.955.855.655.856.156.25656.156
57.356.256.156.35656.256.25656.1
56.755.8
5756.856.156.156.356.7
55.9
58.2
56.756.457.156.456.356.955.856.355.856.356.35756.857.3
59
56.5
59
57.556.7
60.1
65.865.8
57.156.357.156.5565757.3
64.8
60.360.7
56.855.856.455.755.755.9
57.556.756.256.356.256
56.9
58.4
56.3
57.657.35757.8
56.657.356.757.357.457.8
62.2
57.857.857.8
60.8
58.959.5
57.958.3
56.8
5858.858.359.1
57.257.758.2
60.659.5
64.4
57.1
59.5
63.3
5858.358.858.357.257.656.9
58.7
57.357.35857.8
63.7
58.1
62.7
57.257.9
56.556.6
58.6
56.957.8
63.1
58.257.456.9
60.6
59.458.7
57.357.3
59.758.8
56.5
57.857.558.3
56.1
57.757.756.8
58.4
56.256.556.4
59.8
58.2
61.7
58.459.558.657.55858.557.958.359.459.759.1
60.760.560.361.3
59.8
63.664.3
5959.8
62.1
58.358.659.1
62.9
58.7
60.5
5958.4
57.1
59.4
67.5
65.3
59.2
57.7
63.3
61.561.5
59.9
67.9
60.7
63.9
5958.1
60.461.461.162.1
59.158.5
62.4
59.5
56.9
62.1
68.5
59.259.259.860.759.6
57.6
62.4
58.3
61.8
58.4
65.8
62.9
61.3
57.6
59.9
62.762.2
59.2
57.757.3
59.758.8
57.2
60.2
58.658.3
59.658.8
60.3
55.8
54.553.653.753.7
56.355.555.6
57.458.3
56.755.85655.755.5
54.755.255.7
57.7
54.954.75453.953.853.854.454.454.855.154.8
63.5
57.2
55.254.454.654.154.254.254.955.455.25555.9
54.455.554.554.253.95454
58.1
54.454.254.354.354.754.954
56
5453.7
58.3
54.655.6
62.3
67.8
55.4
53.6
55.356.4
55.254.55454.75453.854.7
53.253.654.25454.554.554.355.154.653.8
55.754.654.353.953.2
54.9
53.352.853.4
55.954.954.755.5
5454.45555.9
57.958.758.4
5555.655.955.856.55656.5
59.1
55.95656.855.955.455.9
58.458.8
57.457.657.5
56.256.156.156.556.456.2
58.2
57
55.455.656.255.756.856.556.256.6
54.853.754.1
64.8
5554.354.453.85454.2
5655.9
65.164.7
58.559
55.554.554.153.95454.2
54.654.954.253.554.653.954.453.6
55.1
53.454.555.255.455.4
58.2
55.955.2
56.456.556.357.1
55.855.856.957.957
55.255.355.95655.955.65655.956
64.8
58
63.4
56.957.5
55.8
57.95756.8
54.655.2
59.8
55.454.753.8
56.1
59.9
63.8
5858.158.5
56.456.156.756.256.4
58.858.157.5
59.1
57.356.7
57.957.756.957.157.457.7
59.158.5
66.5
60.6
58.95958.558.459.5
57.658.7
59.959
56.9
59.7
65.7
64.2
58.258.158.6
59.860.159.1
57.4
60.759.859.458.658.2
59.6
63.4
55.2
57.2
55.356.255.9
62.4
58.7
56.3
57.6
61.8
57.958.2
62
56.456.8
54.4
60.2
58.6
59.9
56.857
59
61.6
55.4
59.1
57.358.2
59.6
57.1
60.1
58.359.2
63.1
58.458.7
66.2
63.8
56.9
59.5
68.4
59.2
57.657.7
60.5
65
59.558.7
68.8
65.2
57.5
59.559.4
57.9
63.8
56.5
58.85859.1
57.8
60.359.358.259.1
62.462.7
59.3
57.7
61.5
56.8
55.1
59
57.658.6
57.3
58.659.2
60.9
57.3
65.9
58.559.56059.7
57
64.5
58.8
57.1
61
57.357.957.657.9
54.754.754.454.454.254.15453.953.753.352.8
54.754.254.6
52.652.25252.25352.352.252
53.453.2
51.7
54.7
51.551.450.951.652.152.152.352
51.4
52.751.8
54.2
51.751.851.751.951.7
57.2
53.3
51.551.951.651.7525252.2
53.8
51.752.452.852.452.452.4
53.152.652.853.252.952.8
53.653.153.953.552.852.652.952.753
53.752.852.853.4
51.952.6
54
52.65352.751.951.35252.252
53.553.352.2
53.952.9
51.752.353.153.6
51.852.252
54.3
5251.351.752.8
62.6
56.6
60.1
52.1
50.951
55.1
51.251.351.451.651.551.651.751.351.5
52.853.6
51.752
53.252.55251.452.252.751.852.452.552.152.652.753.2
58.5
52525252.8
58.8
53.652.852.852.152.151.851.8
53.7
51.952.452.752.8
5252.151.851.951.751.552.252.151.851.752.1
54.1
52.352.253.252.452.65252.953.754.15454.454.4
55.25555.155.254.654.554.554.6
64.5
55.255.356.4
55.154.754.953.953.253.354.153.653.754.455
53.453.153.4
55.8
53.353.2
56.4
53.8
55.8
59.4
53.753.853.653.754.654.854.555.254.254.45453.6
54.855.255.3
54
56.2
53.854.555.655.754.854.854.654.254.3
54.955.455.85555.45555.555.154.754.5
5555.2
56.556.357.3
5656.156.5
57.7
5555.955.4
58.1
55.955.955.555.7
59.9
69.7
68.1
56.556.5
54.455.354.5
56.757.7
5655.855.155.2
59.2
5655.4
54.154.1
56.756.7
60.6
55.555.25555.4
57.3
54.8
57
65.5
59
55.8
59.1
57.1
55.254.754.7
5757.2
54.254.1
57.2
63
54.45553.954.954.1
58.4
62.3
56.9
55
57.3
62.4
56.155.556.155.8
58.357.9
55.955.9
62.1
55
56.4
58.5
56.957.357.957.1
55.6
57.357.5
60.5
55.1
56.356.556.455.956.556
57.4
71.7
56.45655.555.655.8
57.6
62.3
55.2
60.2
57.3
55.2
59.459.4
57.4
59.660.259.558.959.9
55.4
53.9
55.3
58.7
53.3
55.9
54
56.8
58.158.758.6
53.853.5
55.255.454.5
59.9
57.5
54.5
53
56.455.4
53
57.9
54.7
56.9
55.354.4
57.7
52.25354.1
55.4
53.953.4
51.5
55.8
58.657.5
55.7
57.9
54.2
58.558.557.458.5
53.8
57.556.7
58.3
62.2
57.8
54.1
57.457.2
54.6
51.9
53.452.6
54.353.253.254.2
56.6
52.2
55.1
58.7
54.85555.856.4
52.9
54.2
59.7
61.1
55.455.555.956.6
53.652.9
58.358.9
53.7
56.9
54.7
52.7
56.156.655.7
53.8
57.7
53.7
58.559.5
57.7
52.8
56.4
59.1
56.5
59.1
53.9
55.8
58.4
53.854
56.9
59.3
53.6
56.3
53.1
59.159.3
54.3
59.5
60.7
54.6
59.1
56.6
60.259.7
57.6
59.458.7
53.8
60.4
56.4
54.8
62.2
59.358.8
60.4
54.8
60.6
67.6
58.4
56.657.7
52.6
58.7
60.7
57.2
58.9
53.2
58.258.258.258.4
55.6
5857.858.7
55.9
59.960.6
59.3
57.5
6160.7
56.757.2
55.555.3
60.6
56.355.7
54.4
59.159.76059.8
55.5
57.2
59.858.960
57.757.3
59.559.1
60.760.9
59.4
54.4
59.1
57.4
59.3
55.555.955.856.9
55.2
57.1
58.757.757.9
60.359.9
58.557.9
59.6
56.1
6060.860.4
56.9
63.4
60.2
58
59.8
56
59.8
57
6060.56160.560.360.459.5
56.8
55.655.656.2
5959.9
56.656.7
62.962.7
58.8
63.7
65.2
61
55.9
59
60.3
59.1
57.7
56
58.7
60.6
57.2
58.5
64.4
58.457.8
64.865.4
62.3
55.5
61.1
66
62.6
60.4
56.8
58.458.4
60.3
62.461.4
59.5
58
61.461.9
59.3
61.462.462.963.7
59.6
63.5
58.2
60.159
61.460.6
6565.7
58.9
61.4
58.1
60.5
58.859.7
62.3
57.8
55.7
57.65858.1
53.2
56.256.1
58.7
56.357.358.3
60.160.2
56.8
61.9
59.258.158.859
56.4
60.9
62.6
59.9
58
56
57.3
60.3
57.2
55.8
60.9
62.7
57.5
56.157.2
68.2
59.2
64
61.960.8
63.6
60.7
58.459
63.162.3
59
63.4
67
60.9
62.162.7
59.7
62.663.363
59.3
62.863.6
61
59.5
64.1
61.561.160.5
64.8
60.9
64.464.4
45
50
55
60
65
70
75
80
85
90
95
12:00 AM 12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/18/19 to 11/24/19 ‐Minute Intervals
E‐Mon E‐Tue E‐Wed E‐Thurs E‐Fri E‐Sat E‐Sun
Location E: Newton and Sicard
45
50
55
60
65
70
75
80
dBA
Time
Barrio Logan Nighttime Noise - 11/18/19 to 11/24/19 - LOCATION E
76.3
67.4
70.3
75.7
71.1
73.474.3
76.5 76.8
74.5
67.5
71.6
73.6
68.469.2
66.7 66.3
73.0
69.6
71.0
72.5
70.6
72.9
74.1
76.8
75.7
73.572.9 73.0 72.6 72.9
74.874.1 74.1
72.6
70.571.4
66.8
69.2
67.3
65.8
73.3
71.170.6
67.0
69.9
73.0
74.1
76.876.1
73.1 73.274.1 73.9
73.274.0 74.2
72.7 72.5
69.2
71.9
68.469.2 69.0
67.8
12:00 AM
1:00 AM
2:00 AM
3:00 AM
4:00 AM
5:00 AM
6:00 AM
7:00 AM
8:00 AM
9:00 AM
10:00 AM
11:00 AM
12:00 PM
1:00 PM
2:00 PM
3:00 PM
4:00 PM
5:00 PM
6:00 PM
7:00 PM
8:00 PM
9:00 PM
10:00 PM
11:00 PM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐ Hourly Intervals
F‐Fri 10/25 F‐Sat 10/26 F‐Sun 10/27 F‐Mon 10/28 F‐Tue 10/29 F‐Wed 10/30 F‐Thurs 10/31
Location F: 28th and Harbor Dr
Data was lost On Monday and Tuesday
76.3
67.4
70.3
75.7
71.1
73.473.0
69.6
71.0
72.5
70.6
72.973.3
71.170.6
67.0
69.9
73.0
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐ Hourly Intervals
F‐Fri 10/25 F‐Sat 10/26 F‐Sun 10/27 F‐Mon 10/28 F‐Tue 10/29 F‐Wed 10/30 F‐Thurs 10/31
Location F: 28th and Harbor Dr
Data was lost On Monday and Tuesday
58.8
62.9
66.966.666.9
69.169.168
69.770.471.371.1
64.765.7
62.6
66.166.665.7
61.8
67.5
61.360.8
62.1
63.7
65.7
62.7
64.7
73.7
93.5
70.9
69.570
71.371.470.5
69
70.5
66.6
62.7
63.9
65.5
60.8
66.7
60.7
58.658.758.759.1
63.964.9
58.6
65.56666.9
65.5
59.5
65.3
60.860.6
65
62.162.961.8
73.1
81.5
70
66.967.5
61.8
64.5
66.1
64.664.165.1
67
65.5
61.6
64.4
67.5
65.3
63.6
61.4
63.9
66.4
63.6
68.4
66.9
62
66.866.1
62.5
65.6
62.3
68.3
62.8
60.6
66
60.3
69.7
58.659.3
61.160.359.459.659.2
63.7
61.8
63.2
60
64.9
59.659.760.4
63.1
67.2
62.5
67.8
64.6
60
66.4
72.6
63.8
62.362.9
68
60.6
68.5
70.8
61.7
60.2
65.4
60.9
64.5
71.6
61.4
65.365.7
62.9
67.8
63.6
60.9
62.9
61.762
67.6
63
61.8
68.9
63.263.5
66.5
69.2
86.1
62.9
65.964.9
69.8
63.46363.1
70.3
62.162.5
61.3
63
64.5
67.3
64.4
62.9
61.5
65.2
60.9
72.1
66.467.2
61.7
62.9
64.7
68.1
66.8
63.463.764.1
65.3
67.4
64.965.8
68.7
63.563.162.862.9
66.4
68.9
80.8
92.4
73
65.8
63.9
62.763.663.463.4
67.2
63.963.1
70.2
67.1
64.865.8
62.5
77.9
62.1
66.8
70.1
71.4
65.9
73
66.1
64.4
68.168.1
61.3
65.4
69.2
61.7
63.9
70.871.3
61.761
74.8
72.2
64.7
68.3
62.3
66.2
69.4
67.1
64.563.7
67.3
69.2
66.6
70.470.270.470.6
71.9
80
65.965.7
67.566.667.367.7
70.169.470.1
71.9
69.1
72.5
64.76566
71
66.7
72.371.7
67.8
72.8
67.8
73.4
66.2
72.5
66.666.3
71.9
64.2
68.9
67.1
71.9
69.3
70.8
66.5
73.1
69
72.7
71.2
65.5
68.66867.4
65.3
78.8
74.5
66.6
69
78.4
71.772.7
67.5
71.57170.1
74.1
71
68.7
84.4
70.6
68
72.172.2
70.1
71.8
73.9
71.7
69.5
74.7
72.3
67.5
74.3
65.1
74.2
71.67171.571.2
69.1
73.7
68.968.2
71.3
67.5
73.873.5
67.6
76.6
69.8
74.475.2
68.2
75.6
72.2
69.7
66.8
76
69.5
74.8
68.2
69.5
77.3
68.7
79
75.1
73.2
68.6
72.673
66.767.8
64.463.9
67.1
72.3
69.9
68.267.668.5
65.3
69.368.668.4
64.3
72.6
66.2
63.8
65.3
61.5
6564.3
67.4
63.3
60.961.8
69
64.3
67
70.5
66
63.162.361.7
68.568.8
63.162.4
76.3
64
82.8
65.5
63.5
64.964.3
66.2
60.8
62
60.2
58.1
61.361.160.4
67.6
88.5
68.268.6
70.6
65.165.3
61.761.561.1
85.1
72.6
60.961.261.962.6
60.8
65.6
63.862.964
62.561.5
73.4
63.864.6
61.560.5
62.5
71.6
63.963.8
65.3
61.161.861.5
69.1
61.661.3
64.8
58.4
62.3
67.8
65.8
69.1
61.461.362.1
65.3
67.166.1
58.3
70.3
63.4
59.6
71.2
60.2
62.1
65.7
71.7
68.1
58.357.658.4
65.9
58.3
66.6
68.5
60.9
57.3
60.7
67.9
66.7
69.469.1
70.5
63.362.6
58.459.5
57
58.4
6059
70.4
59.1
70
59.3
61.7
66.1
58.9
73.8
62.9
58.6
61.6
58.4
62.3
85.5
77.3
70.2
57.9
62.8
66.4
64.2
58.858.658.858.3
66.6
57.9
61.760.9
65.9
64.3
58.8
68.9
66.966
60.260.5
65.565.666.7
65
78.978.3
70.1
62.3
67
62.963.162.462.4
70
66
64.7
66.166.2
63.9
62.463.1
65.766.3
6059.8
64
61.562.6
58.6
69.1
65.5
67.3
69.7
65.7
61.8
59.2
66
68.3
66.7
68.3
62.8
67.4
59.9
66.7
64.6
61.961.9
60.3
71
67.3
71.8
68.2
69.6
85.485.2
69.4
71.4
72.8
74
70
73.472.572.3
62.161.7
69.6
60
64.7
68.4
69.669.4
71
68.6
63.4
67.1
68.8
65.6
75.7
69.8
71.3
76.6
68.369.469.5
67
7169.9
65.165.6
74
67.4
73
66.166.2
72.2
68.2
70.6
63.1
66.5
63.6
73.5
68.669.670.6
72.8
69.7
75
64.8
68.6
65.7
73
71.4
64.7
71.5
69.969.470.4
66.6
74.5
68.769.8
71.1
77.3
65.8
68.1
66.7
71.2
67.266.5
76
72.7
74.5
77
66.9
73.8
68.8
70.1
73.9
65.4
72.273.173.6
70.7
69.5
73.8
68.8
72.6
68.6
76.4
64.7
67.5
75.1
70.3
74.774.4
70.5
68.9
72.9
68.3
76.2
70.6
79.7
7272.5
68.3
69.6
77
69
73.2
70.270.6
72.8
75
68.5
67
75.1
71
72.272.7
70.1
74.7
72.1
66.6
77.3
70.9
74.7
72.1
67.5
73.3
63.2
59
65.9
59.6
69.9
68.6
71.3
66.967.167.8
69.268.468.5
74.2
64.1
67.3
68.7
60.761.1
63.5
61.7
68.6
76.5
64.7
67.1
64.5
62.2
64.665.7
61.3
63.8
61.6
69.9
60.7
63.5
57.958.958.4
62.1
67.5
89.8
72.673.7
69.8
67.166.1
61.9
68.6
56.7
59.858.859.6
60.8
66.1
73
64.764
59.3
63.2
67.6
60.9
62.6
68.5
57.5
55.855.956.157.1
64.6
87.7
69.8
58.6
63.5
64.7
56.656.256.8
59
65.2
60.6
66.7
61.861.1
64.2
66.6
61.6
66.8
60.8
64.2
61.2
63.5
74.2
59.5
63.6
59.1
65.3
55
65.1
55.456.1
76.3
55.3
65.7
58.8
53.7
61.2
64.2
62.5
54.6
56.6
69
54.2
56.1
58.9
65.6
61.4
64.5
62.2
67.4
62.7
53.853.7
62.8
55.5
61.9
58.1
54.8
62.3
58.7
60.5
68
53.1
66.5
53.7
57.3
52.9
59.4
68.5
55.9
71.4
69
54.5
60.8
69.8
57.2
69
63.7
68.6
63.1
67.5
61.6
64.1
57.5
87.4
69.3
62.6
60.3
55.75656.455.8
68.4
57.5
60.759.858.9
70.6
59.9
57.656.7
65
57.156.2
66.3
60.8
56.4
57.7
63.6
58.657.6
64.965.8
64.2
56.4
60.7
56.356.4
70.8
65.2
60.5
72.6
58.3
56
65.664.7
56.356.1
68.4
64.565.264.8
56.156.2
67.7
65.1
62.3
67.3
66
63.3
66.3
72.4
64
58.3
66
64.8
61.9
66.4
55.6
64.7
68.9
75.8
67.968.769.2
67.9
72.7
67.1
55.255.6
70.1
66.8
71.1
68.267.6
64.3
56.3
65.865.2
70.9
65
72
75.374.5
68.1
70.2
59.7
68
69.8
61.3
64.8
67.3
57
64.9
67.268.2
58.7
67.7
70.2
66.9
70.3
67.567.5
71.2
74.5
67.7
69.6
67.266.3
63.5
64.7
67.5
62.9
67.967.4
71.472.4
68.3
69.6
71.7
73.9
60.8
66.9
71.8
69.8
68.1
72.272.9
68.2
70.6
62.6
72.4
66.8
73.9
68.7
61.6
71.9
67.167
77
67.2
69
71.8
73.5
75.6
67.8
62.1
74.3
62.1
77.1
65.2
71.672.2
64.9
70.970.5
68.2
69.9
75.8
67.4
70.271.2
69.6
67.3
69.1
72.1
64.5
72.2
75
71.2
75.3
72.1
75.1
72
65.3
84.3
66
71.1
75.1
66.3
72.6
70.971.972.4
66.6
69.6
76.1
66.5
72.2
77.3
70.2
73.4
71.9
70.369.3
74.473.873.3
70.2
66.1
69.8
72.3
45
50
55
60
65
70
75
80
85
90
95
12:00 AM 12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐Minute Intervals
F‐Fri 10/25 F‐Sat 10/26 F‐Sun 10/27 F‐Mon 10/28 F‐Tue 10/29 F‐Wed 10/30 F‐Thurs 10/31
Location F: 28th and Harbor Dr
45
50
55
60
65
70
75
80
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
dBA
Time
Barrio Logan Noise - 10/25/19 to 10/31/19 - Location F
Data was lost
68.1 67.8
75.4
67.1
71.8
73.3
65.4
74.0
64.1
71.570.8
73.8
65.8
62.6
71.5
68.6
70.7
73.3
65.8 65.7
66.9
73.7
70.7
74.4
77.9
70.8
74.5
68.2
71.5
73.1
66.0
64.1
66.4 66.7
69.0
70.6
65.664.9 64.5
65.6
67.1
68.8
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/11/19 to 11/17/19 ‐ Hourly Intervals
F‐Mon 11/11 F‐Tue 11/12 F‐Wed 11/13 F‐Thurs 11/14 F‐Fri 11/15 F‐Sat 11/16 F‐Sun 11/17
Location F: 28th and Harbor Dr
62.162
67.9
63.663.9
68.7
71.5
68.2
62.361.461
64.364.5
62.4
64.2
58.95858
66.6
63.5
58.5
65.1
61.6
64.6
58.6
60.4
63.662.9
57.757.458.3
65.4
5958.9
60.1
63.6
62.2
64.864.9
60.2
58.9
62.5
73.5
83.4
73.2
67
5857.9
61.2
57.2
63.2
57.357.1
64.1
59.1
64.1
57.5
61.9
64.6
59
67.2
60
57.8
64.1
70.8
83.4
72.2
58.6
56.2
66.3
56.1
67.9
60.8
5655.756.356.356.4
59.360.1
64.8
61.1
63.8
60.5
57.758.8
56.6
58
66.7
62.4
56
62.8
56.155.1
68.2
62.762.9
64.8
61.8
64.8
60.4
68.5
63.7
62.363.3
61.7
66.9
64.7
61.8
64.563.5
60.4
67.9
60.5
66.9
62.7
65.8
61.760.9
58.859.660.7
66.9
61.5
57.156.757
62.7
56.7
60.360.6
57.5
65.6
57
65.7
56.8
64.2
56.456.8
66.3
64.9
63.5
89.7
88.3
72.3
73.7
69.869.3
57.456.8
65.2
63.2
58.1
65.366.2
58.6
68.6
57.757.457.6
62.562.6
59
63.3
5756.7
84.4
75.4
65.6
57.657.657.5
61.5
63.1
57.357.1
66.6
59.5
63.6
66.3
68.2
57.558.3
63.464.5
68.2
73
57.6
65.9
57.657.558.2
59.6
62
64.7
58.358.7
64.1
65.6
62.261.1
69
61
63.9
59.5
57.657.9
67.6
74.4
66.5
70.2
75.2
56.4
63
72.7
62.3
76.1
65.7
56.7
64.1
57
65.9
56.8
71.4
65.8
57.6
62.4
57.1
62.7
64.6
67.3
60.9
67
63.263.7
66.7
68.4
63.9
72.3
66.667.4
57.9
67.6
70
62.2
65
72.5
69.6
63.863.5
65.964.8
66.4
68.368.9
85.2
68.9
67.5
66.1
62.1
68.9
64.3
66.5
63.8
66.3
76.4
66.966.8
62.9
64.9
62.863.8
70.469.470.370
73.2
67.4
69.8
68.5
66.1
75.7
72
67.1
64.4
66.1
74.2
70.6
67.1
76.4
69.8
63.7
70.4
71.8
67
72.8
65.5
78.2
66.9
73.1
6766.9
74.9
67.1
74.8
69.869.769.8
64.7
73
68.2
72.6
70.4
73.2
67.7
69.369.969.3
72.3
66.6
7273.1
68.2
72.6
76.2
73.7
68.467.6
71.571.6
78.4
73.8
70
74.7
7170.3
68.4
73.7
75.4
71.9
80.7
70.9
80.3
65.8
75.5
71.1
74
76.6
68.7
71.8
74.175.2
70.4
67.567.2
73.6
79.5
74.3
66.5
74.3
66.5
63.5
65.9
64.7
66.566.6
71.8
65.3
68.168.368.9
71.8
64.5
6767.867.267.567.2
64.6
60.659.959.7
61.862.5
66.1
61.6
66.1
64.463.4
67.8
60.7
66.966.8
60.561
59.459.5
65.2
60.1
64.5
59.2
63.9
61.5
68.1
60.660.6
62.763.5
67.2
59.159.7
66.4
60.5
62
68
65.3
63.663.5
58.859.4
65.865.165.8
67.5
65.6
70.6
85.3
60.359.7
66.5
59.9
66.8
64.8
59.7
63.5
61.4
64.9
62.4
65.165
60.9
58.4
64.8
62.9
60.4
72.2
90
70.971.9
69.6
62.563.1
57.457.357.2
68.6
65.7
57.2
61.4
57.557.657.557.2
65.465.8
64.664.2
5756.95756.555.855.956.6
57.9
63.1
69.1
64.3
57.1
58.7
68.2
56.6
69.268.5
65.365.1
56.1
67.5
62.3
65.8
67.1
57.4
5958.7
5656.8
63.862.9
57.9
62.5
57.3
66.7
56.556.756.6
63.1
60.2
56.5
64.7
69.8
63.262.2
56.8
58.7
55.9
63.9
61.7
68.2
57.2
65.2
57.4
68.268.8
56.255.6
65.664.9
56.9
60
56.4
58.357.7
61
62.8
55.6
69.4
56.9
60
58.1
71.9
84.1
68.7
58.8
57.5
69.3
64.264
55.956.357.156.3
65.465.6
56.757.2
73.1
81
64.7
6766.8
63.1
68.268
76.7
64.9
66.7
58.4
65.565.465.1
68.8
66.6
75
69.5
63.563.1
69.7
77.6
71
64.9
57.7
66.567.4
59.1
73.2
60.3
69.4
60.2
69.2
67.8
69.8
71.3
56.7
76.4
67.7
66.2
64.9
72.1
63.4
71.4
77.3
68.1
70.2
68.367.666.9
61.9
72
57
77
67.9
72
66.8
68.9
65.7
70.9
66.1
67.8
64.6
66.3
70.4
73.873
67.767.8
62.6
67.8
72.272.2
67.9
64.4
72.2
63.1
68.8
70.9
75.4
72
66.6
69.1
71.8
74.1
75.5
71
69.8
58
70
67.267.9
69.8
71.1
7473.3
68.9
70.2
68.2
74.3
65.7
71.3
73.3
64.7
74.3
64.8
67.968.8
66.3
74.1
67.5
65.9
72.873.6
69.1
73.5
71.1
66.2
78.9
70.7
73.9
69.8
72.272.772.6
68.8
72.4
67.2
76.9
68.6
74.8
78
73.974.3
70.7
69.2
73
75.8
72.1
78.1
66.567.6
71.6
74.9
68.2
82.9
67.8
73.373.8
77.1
7473.272.4
7473.374.173.3
69.469.4
76.2
80.3
66.6
69.2
66.6
69.2
57.957.9
59.2
66.666.6
65.2
66.6
69.6
68.1
66.3
71.2
66.1
69.870
67.466.765.664.7
68.2
69.4
64.5
61.562.1
60.1
63.2
64.664.664.464.5
62.3
66.3
64.3
66.165.164.463.3
57.8
66.4
64.5
59.8
67.5
57.5
62.6
58.6
65.4
70.1
65.266.3
63.762.6
65.7
57
61.9
68.2
61.6
63.963.4
70.6
57.8
67.3
56.6
58.5
68.4
64.1
57.1
66.3
69.8
58.4
56.3
60.7
56.556.958
61.7
59.559.459.6
6765.9
69.2
62.161.3
59
62.1
58.258.1
63.7
58.859.8
57.55757.257.156.8
58.857.858.259.1
56.5
58.8
57.1
62.5
64.2
62.862.9
67.7
64.3
56.556.3
65.6
55.556.156.256.8
61.6
68.2
67
64.6
59.7
63.8
56.456.6
60.2
64
57.9
64.865.7
68.1
63.163.763.5
58.7
60.1
63.2
59.3
57.4
65.2
63.564.6
5757.7
67.5
62.3
67
70.5
68.9
56.957.1
6161.660.9
63.5
57.6
61.9
63.6
57.357.7
6362.3
66.9
64
71.5
62
65.5
62.8
71.971.1
87.7
68.469.469.7
72.472.872.7
71.5
70.2
59.7
56.8
59.2
66.1
72.8
60.4
55.9
58.8
62.7
67.3
74.2
57.5
70.1
62.763.3
58
65.3
76.7
57.2
62.9
64.2
56.9
59.9
74.6
57.556.5
68.8
66.2
64.8
67.266.2
60
72.2
66.4
68.9
60
63.8
75.4
66.4
59.7
64.9
66.4
68.5
65
68.9
65.765.8
63.3
69.8
62.8
59.6
77.4
66.4
74
57.457.4
65.6
63.5
61.5
74.3
65.9
64.5
61.1
59.6
68.6
73.4
68.168.4
72.1
61.9
68.3
72.172.2
70.8
58.8
70.569.7
63.7
69.8
76.5
67.9
70.9
67.8
7069.8
73.7
64.364.6
59.7
68.5
62.4
73.4
67.7
70.370.371
65.465.566.4
68.7
62.1
66.9
75.3
69.570.2
65.5
72.4
74.7
69.4
66.3
74.873.9
76.3
67.9
71.871.6
67.1
70.6
75.1
70.8
68.669.5
67.1
70.4
68.5
69.9
66.3
71.1
72.5
66.8
63.8
72
63.7
77.8
68.2
80.7
76.2
71.5
63.4
70.7
73.6
68.6
72.171.4
69
77.4
68
69.7
66.9
69
74.3
71.170.6
73.5
68.1
73.172.5
75
82.9
73.8
69.470.5
74.8
68.968.7
74.5
66
70.3
72.2
74.3
67.4
75.9
71.9
74.7
70.369.7
75.3
67.967.1
75.4
69.9
75
68.8
75
68.8
63.16363.664.765.765.9
69.468.3
65.7
71.3
67.5
70
65.364.3
68.4
6765.9
62.1
65.6
61.7
63.2
61
64.164.5
69.5
62.8
65.764.6
60.5
63
69
66.1
60.6
64.5
60.1
63.5
60.9
66.2
62.1
65.9
70.3
60.1
62.5
65.164.6
61.8
60.6
65.6
66.9
62.462.7
63.9
65.3
63.8
65.866.3
72.1
67
63.7
64.9
66.3
70
66.1
64.1
65.5
62.861.7
67.5
6464.563.5
66.7
76.2
66.265.966.5
62.263.364.4
65.6
62.8
65.765.7
67.8
63.2
65.1
66.6
64.7
61.1
66.8
63.1
65.7
6160.661.260.259.559.559.3
63.8
59.8
62.7
68.9
61.3
59
60.5
59.159.4
62.46363.3
58.8
63
58.758.858.859.2
72.272.5
60.1
6364.1
62.8
65.5
72.6
65.5
63.4
71.5
67.76766.9
63.963.8
70.5
63.362.7
67.3
65.8
70.7
63.663.864.7
71.9
63.4
65.1
63.1
65.2
70.3
63.2
64.5
65.765.1
63.163.4
65.464.4
66.9
63.563.2
69.1
63.363.763.463.36362.463.5
62.3
64.3
66.6
64.7
70.5
65.4
66.7
63.563.2
66.6
75.1
63.1
72.3
62.7
64.4
67.9
63.5
66.2
68.3
66.3
62.563.2
69
64.2
71.8
75.5
65.5
63.1
64.7
63.162.8
66.5
63.462.3
67.668.1
89.8
67.3
68.5
71.3
73.2
71.271.1
68.9
73.9
65.4
72.4
66.967.9
64.764.1
72.3
64.6
63.4
67.4
66
63.1
67.7
70.8
77.2
63
66.9
68.7
66.3
68.5
70
64.8
69.4
73.7
65.9
69.3
66.4
65
66.9
71.6
65.8
62.8
72.8
68.367.3
69.6
66
71.3
67.368.467.467.7
59.5
68.2
69.6
62.362.6
72.1
66.9
65.7
71.2
67.1
69.4
63.9
69.3
64.9
63.263.563.7
59.2
77.4
67.8
73.1
62.6
70.8
64.5
70.871.1
66.6
70
74.3
63.9
68.3
71.671.771
68.9
76.6
71.6
76.2
72.3
74.3
66.5
73.1
79.4
63.3
71.4
69.3
64.4
70
74.6
69.6
73.973
66.765.6
73.8
66.2
72.1
70.670.5
73.6
66.3
73.574.6
72.6
71.4
67.4
75.7
70.2
73.3
68.5
70.3
66.3
78.5
72
67.8
73.3
67.7
74.9
69.3
66.9
84.5
77.4
70.8
65.9
74.3
67.8
70.8
74.374.8
70.5
68.4
74.1
68.9
72.4
85.2
74.1
71.3
70.1
76.5
68.9
66
79.2
75
69.6
73.9
69.6
73.9
65.865.565.865.8
62.6
64.6
70.6
89.8
94
72.6
74.1
72.5
71.2
69.9
73.5
69
65.1
69.3
64.363.6
65.1
63.6
69.8
64.964.964.2
67.4
62.7
65.2
63.5
65.8
63.563.163.7
65
66.5
63.463.463.262.361.961.561.8
62.863.464.463.362.661.8
64.965.4
64.263.863.1
64.664.6
67
62.8
64.363.8
62
60.360.6
66.3
85.7
81.8
64.4
66.3
69.7
66.9
60.961.9
66.966.8
64
66.366.9
62.1
60.9
70
63.463.463
64.663.5
62.163
65.265.565.464.6
67
63.2
60.2
63.863
65.9
75
65.2
70.9
59.960
65.9
59.9
64.464.3
60.360.3
66.1
58.7
60.5
66.165.966.6
63.3
67
60.359.4
61.260.9
71.4
63.9
78.1
90.5
73
61.7
65.8
63.7
60.3
62.262.2
67
61.5
65.8
60
68
71.3
58.4
6362.1
6565.8
64.6
68
60.2
69.8
57.8
63.764.365.3
59.5
65.1
83.5
75.4
63.8
61.1
65.9
62.5
66.3
78.9
66.766.1
63.3
60.6
66.9
6060.961.1
63.463.2
60.2
66.9
60.7
67.3
59.659.259
62
64.965.2
72
65
76.4
64.4
62.7
58.7
67.5
59.5
66.7
65.1
72.2
75.6
72.7
58.7
62.7
65.56565.4
61
67.367.266.466.9
65.564.6
67.766.667
68.7
70.6
66.8
60.9
67
61.5
63.5
60.3
66.3
63.6
69
67.6
62.7
69.5
66.7
63.763.6
67.568.6
71
63.3
69.9
66.8
63.1
64.9
73
69
71.4
68.7
65.1
68.568.6
7171
69.870.6
76.3
74.7
70.670.5
68
69.970.5
66.166.966
67.6
64.4
69.46969.769.669.1
63.4
75
65.2
70.569.469
65.3
70.570.1
67.368.2
70.3
62.5
72.6
62.9
70
67.167.3
81
72.6
63.1
78.4
71.871.4
64.2
70.869.9
71.171.271.871.5
69.1
67.8
75.9
68.8
66.6
70
73.9
76.5
73.6
66.1
68.8
72.6
69.5
64.464.9
74.2
72.6
68
72.471.6
76.3
70.6
72.272.272.7
69.8
74.574.474.3
70.671
68.2
71.5
75.3
67.5
68.7
71.6
66.1
72.4
67.6
83.9
71.7
74.7
71
69.368.7
75.2
67.8
75.374.9
69.8
73.5
71.8
73.1
70.1
73.9
72.2
69.2
77.5
69.8
73.6
76
72.6
74.6
71.8
676768
66
67.267.267.9
64.1
68.769.470.5
66.6
72.3
70.369.3
64.7
68.269.1
66.6
62.5
65.2
61.4
62.863.464.4
60.2
66.266.6
64.2
67
62.8
68.6
59.9
66.7
63.7
62.3
65.3
63
57.757.7
65
66.6
63.1
60.5
67.1
61.3
71.8
61
65.9
67.5
62.6
56.157
6767.3
56.8
58.8
60.5
57.1
64.9
66.5
59.6
6463
57.1
65.3
5757.4
60.8
65.3
63.8
57.4
64.1
56.857.3
66.1
68.2
63.4
61.7
67.9
64.3
57.9
62.8
65.1
58.257.7
59.8
58.6
60.6
58.459.1
65.865.2
66.6
58.9
66.7
59.9
6263.1
66.5
62.5
61.260.2
67.367.6
60.1
61.4
62.9
71.8
68.4
58.4
60.5
64.4
67.9
58
64.5
68.9
65.1
63.4
57.9
61.9
65.6
64
60.4
70.771
696867.2
65.9
69.5
63.1
66.5
58.4
66.866.1
63.6
60
6261.2
67.8
66.666.3
58.7
63.364.1
57.4
65
57.757.7
70.5
61.9
57.557.7
61.6
77.7
69.4
62.2
58.1
59.7
61.7
64.7
67.1
57.8
60.6
67.9
63.8
62.6
67.9
61.4
72.3
62.562.462.6
57.657.457.357
67
61.3
56.656.456.2
70.870.6
67.7
62.5
56.5
65.2
56.156.5
70.7
56.7
70.3
57
65.6
64.2
57.9
56.556.556.9
67.4
62.6
65.365.5
68.2
60.2
57.5
63.564
65.6
75
70.270.270
63.163.462.5
65.965.9
68.267.867.7
73
68.4
64.4
6364.1
61.662.262.5
67.3
63.4
57.5
67.1
70.7
60.1
63.7
65.1
70.9
59.2
72.5
60.1
62
68.7
63.5
67.8
64.5
6261.7
69.2
63.5
66.866.3
63.8
70.5
69
72.1
68.1
61.1
75.4
70.3
69
73.3
68.267.768.4
69.6
71.4
70.1
65.665.566.6
69.6
66
64
66.165.3
72.8
69.4
66.5
70.7
68.9
70.5
64.4
69.668.5
70.671.4
68.768.8
64.8
70.8
66.5
72.2
65.8
6867.1
71.7
68.3
70.9
68.8
63
68.769
67.2
69.168.469.4
70.770.6
61.9
66
72.4
70.9
68.669.7
62.8
69.2
62.7
71.1
64.965.7
67.7
69.769.6
67.7
7070.8
67.9
70.2
68.3
73.3
67
72.871.8
73.1
69.469.4
65.1
66.9
7170.6
67.6
74.3
79.6
70.7
67.1
72.771.7
65.6
69.6
73
68.9
75.1
70
72.7
70.471.271.9
66.9
65.3
70.6
65.3
70.6
64
68.7
66.1
7069.9
62.3
57.657.6
63.6
67.166.3
67.7
65.5
70.5
63.9
60.961.662.361.8
67.3
64.5
60.5
58.3
64.6
58.7
68.9
58.5
65
68
65.9
61.4
58.7
60.761.2
68.2
59.960.7
65.5
58.4
60.3
65
60.2
68.968.9
63.8
59.4
67.9
58.5
60.9
68.9
58.557.958.659.2
65.264.1
70.9
68.8
59.2
73
70.3
64.4
65.6
62.262.3
60.3
58.1
60.561.2
65.5
58.7
60.4
62.963.163.262.763
65.9
58.7
60.3
66.6
65.2
69.1
60.1
67.567.9
5959.9
63.763.2
69.5
61.6
59.1
57.8
62.2
64.6
61.5
63.9
58.1
64
59.5
65.1
67.5
70.5
68.8
58.8
68.2
66.5
69.2
59
61.9
66.9
65.4
58.6
67.7
66.1
67.8
62.4
58.3
66.5
58.9
62.7
66.8
64.765.665.1
62.4
60.8
66.166.7
59
67.4
65.3
58.7
69.5
60.6
59.3
66.5
61.7
59.8
62.9
58.6
62.2
57.9
66.4
59.159.1
65.9
61.4
63
60.4
69.7
62.261.3
65.5
66.8
62.2
59.4
69.8
61.3
63
60.760.2
61.5
68.8
60.660.5
67.1
64.5
66.7
63.2
69.1
61.2
65.3
61.661.361.9
67.4
66.2
63.5
68.7
64.865.8
63.263.6
65.965.166.1
64.6
61.662.563.6
60.9
62.161.66261.8
63.5
61.862.262.5
61
66.7
62.8
61.1
65.9
69.1
66.4
60.8
66.8
68.7
61.6
65.4
67.9
69.3
66.6
62.1
63.9
62.3
65.9
62
64.6
68.4
66
63.8
67.767.1
62.1
68.169
64.4
66.4
61.5
66.4
61.7
70
63.3
60.7
64.6
72.2
65.3
62.5
66.2
68.2
61.8
66.3
60.759.9
66.7
68.9
65.8
64.265.1
69.5
65.9
72.3
63.9
67.7
64.3
62.563.4
61.662.4
66.3
69.5
65.666.5
72.1
67.8
64.7
63.2
68.8
63.2
66.8
73
62.8
65.9
70.2
65.3
6767.2
65.5
67.766.7
69
66.3
68.8
65.8
68.2
65.366.4
68.5
70.1
65.365.1
68.9
64.263.4
67.367.2
68.8
66.367
63.7
71.4
63.963.4
68.4
64.3
61.7
70.3
65.664.5
71.5
70.1
64.264.565.5
71.6
69.3
63.3
65.3
61.4
63.964
69.568.8
65.7
62.2
69.5
64.565
63.3
68.6
64.865.5
69.9
64.8
68.7
67.5
65.7
62.4
69.2
65.966.2
70.8
67.168.1
71.8
65.4
70.4
65.3
80.3
71.1
64
66
69.670.4
67.1
70.4
67.1
45
50
55
60
65
70
75
80
85
90
95
12:00 AM 12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/11/19 to 11/17/19 ‐Minute Intervals
F‐Mon F‐Tue F‐Wed F‐Thurs F‐Fri F‐Sat F‐Sun
Location F: 28th and Harbor Dr
45
50
55
60
65
70
75
80
dBA
Time
Barrio Logan Nighttime Noise - 11/11/19 to 11/17/19 - LOCATION F
64.563.7 64.1
68.6
74.4 74.8
68.2
71.9
69.770.7 71.2
72.3
70.2 70.5
68.4
70.7
77.1
72.7
67.666.9
70.469.5
73.673.1
71.3
76.3
70.0 69.670.4
77.0
67.9
66.4
73.5
67.3
69.8
72.3
65.364.3
63.5
65.1
67.2
69.1
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/18/19 to 11/24/19 ‐ Hourly Intervals
F‐Mon 11/18 F‐Tue 11/19 F‐Wed 11/20 F‐Thurs 11/21 F‐Fri 11/22 F‐Sat 11/23 F‐Sun 11/24
Location F: 28th and Harbor Dr
58.6
63.3
65.1
59.7
62.1
67.1
65.5
61
59.1
65.5
61.362.3
66.9
61.860.8
63.863.964.9
63.2
68.8
64.5
68.767.8
64.4
63.163.6
65.4
61.8
59.3
57.9
65.7
61.4
63.1
57.8
67.3
72.7
59.458.5
66.2
60.2
62.3
61.1
59.559.459.759.7
61.561.360.9
64.764.565.2
60.5
64.6
60.2
66.1
60.1
64
59.1
71.9
58.958
65.2
72.6
59.960.6
64.9
57.858.158.6
67.4
57.356.957.558
67.8
64.7
58.758
65.1
62.4
61.2
62.7
57.858.1
62.2
67.8
64.3
59.558.4
62.1
58.2
64.4
60.5
66.6
60.8
66.3
5857.9
63.5
68.1
57.8
6666.3
59.7
58
61.2
65.8
64.5
57.6
63.6
62.3
64.6
66.8
62.8
59.2
66.5
59.8
67
59.460.4
62.8
58.459.359.5
69.8
65.8
57.758.458595958.9
63.8
59.4
61.861.7
5958.4
66.765.7
58.859
65.9
59.8
58.458
65.6
62.6
64.1
58.1
59.3
57.5
65.5
57.6
59.1
63.5
58.8
68.2
65
56.756.256.5
72.1
62.8
57
59.5
56.956.7
75.3
65.7
61.9
66.6
60.761.7
56.356.9
64.3
57.8
67.568.2
60.1
72.8
62
60
76.7
69.6
636262.363
64.364.3
69.6
68.2
64.7
62.2
60
66.3
59.2
66
77
59.260
68.1
64.163.7
60.3
75.1
67.668.1
59.7
68
66.2
61.4
68.6
65.4
70.269.370.4
66.6
65.4
67.466.7
65.3
75.9
59.6
70
68.4
62.8
71.2
61.4
70.4
66.46665.7
70.169
65.2
59.9
68.7
66.867
71.371.6
62.1
63.4
67.6
89
81.3
71.4
66.8
71.771
81.3
68
73.872.9
60.8
67
68.8
71.6
65.2
67.468.1
65.3
69.8
66.466.9
62.962
70.2
71.6
66.5
71.3
61.4
73.1
62.4
78
75.4
67.8
69.569.1
71.6
68.2
74.5
63.7
71.170.6
72.672
68
69.4
67.36765.964.8
74.2
71.470.4
75.9
67.4
72.9
69.469.2
72.7
67.9
73.1
70.7
73.9
72.272.1
76.4
86
69.4
71.5
68.9
66.2
71.9
68.869
65.7
74.3
70.4
67.5
76
74
68.6
73.673.873
69
70.4
72.6
68.4
82.6
69.6
72.4
80.580.5
72.1
75
67.7
72.4
70.4
68.769.7
77.1
69.9
73.273.8
69.9
75.1
71.3
66.7
73.7
80
74.4
71.9
74.3
66.566.565.9
67.7
69.4
67.4
72.273.2
69.6
68.3
71
67
68.267.266.367.266.766.6
68.3
66.5
70.4
65.966.6
65.3
71.9
65.9
68.269.369.3
67.367.868.168.1
63.2
71.9
69.2
65.165.6
63.8
66.6
63.9
66.666.5
68.969.8
66.7
69.3
66.366.7
64
66.867.7
65.664.9
67.3
63.6
66.6
73.5
68.4
66.6
64.665.664.7
67.9
61.9
60.7
68.1
66.3
68
6564
59.8
62.3
60.4
61.861.9
66.8
74.3
60.6
67.1
63.462.8
66.965.866.3
68
65.7
60.2
65.3
63.8
61
62.463.5
61.761.462.3
57.6
63.2
64.6
67.3
64.2
61.4
63.6
67.266.6
87.4
82.5
61.461.6
63.3
65.364.7
67.7
65.7
61.561.962
66
64.6
66.6
70.3
65.7
68.167.466.3
68.7
67.5
64.465.2
63.6
66.9
6363.363.4
65.7
60.5
63.863.564.6
62.9
65.9
63.264
59.859.259.1
60.3
64.7
61
66.3
64.4
67.9
65.5
85.7
75.3
67.4
59.5
61.961.7
59.559.159.9
65.365
58.957.9
62.2
58.259.2
64.7
62.3
58.858.958.1
71.8
59.158.958.558.658
66.5
69.4
58.659.359.6
62.9
78.5
66.2
61.9
58.5
65.8
6969.2
62.3
59.2
67.6
71.9
60.3
68.4
66
82.5
65.9
71.6
62.8
64.2
58.2
61.662.4
60.4
67
71.7
67.2
63
68.9
67.1
65.7
73.2
70.5
66.5
69.4
77.3
61.8
65.165.766.6
74.2
78.1
73.9
68.8
64.5
72.7
67.768.1
64.365.1
71.1
66.1
67.3
65.9
70.6
64.864.6
69.3
71.6
65.966.9
71.6
65
67.167.8
74.1
70
63
69.7
64.3
69.6
66.766.6
71.2
66.4
71.7
67.7
64.5
68.867.9
63.5
72.7
64.8
72
65.2
67.9
69.1
71.4
65.3
69.4
76.8
67.1
73.4
77.477.2
78.4
70.469.3
76.8
63.6
66
68.7
6766.1
72.3
70.4
71.9
75
70.7
75.8
70.3
64.8
69.2
72.6
67.3
63.8
77.1
61.3
73.5
64.3
7272.8
71.6
69.7
71.9
65.5
7372.2
77.6
73.8
70.6
66.9
71.9
73.4
68.2
72.7
67.5
71.7
72.9
62.3
71.1
69.6
71
66.3
74.2
69.970.6
80.4
71
73.4
69.468.6
74.3
69
7272.973.472.4
70.5
64.5
74.4
71.2
68.4
75.5
73.7
75.9
69
67
71
75.5
68.6
71.271.2
66.566.6
69.2
70.7
68.767.8
70.569.8
72.5
76.7
81.2
67.7
7070.3
66.7
69.4
67.8
66.1
68.9
70.269.6
72.1
66.8
68.2
66.667.7
71.1
66.766
67.866.866.267.167.36767.666.8
77.6
68.1
66.967.967.2
69.370.3
67.8
65.966.7
68.3
71.1
67.567.967.366.866.866.567.1
68.567.766.6
68.2
66.765.866.3
68.7
66.5
6866.967.7
72.6
85.4
73.1
67.266.666.266.266.166.5
69.1
66.8
68.869.5
66.265.465.465.9
69
67.366.365.8
70.5
66.165.5
68.3
64.664.264.264.164.4
71.1
6565.2
66.967.4
70.3
66.2
68.7
66.76666.1
68.2
64.6
68.669.3
67.2
70.8
65.465.1
66.566.7
63.963.9
65.9
63.8
66.9
64.6
67.7
64.364.4
67.9
69.4
64.9
66.9
65.666.2
63.563.462.7
64.1
65.9
68.5
63.763.9
66.7
64.2
68.6
67.2
62.4
67.5
65.465.5
68.3
62.463.564.564.1
67.1
62.6
69.7
66.4
64.4
63.2
65.8
62.963.5
81.3
74.6
63.8
74.5
66.8
63.6
67.266.3
64.5
68.6
65.5
62.9
70.7
63.362.863.5
66.665.9
64.6
76.7
73.9
71.371.3
73.7
70.169.4
73.8
71.2
68.268.8
64.9
71.171.9
73.5
76.3
64.3
70.1
64.2
70.3
66.9
73.2
68.5
65.7
69.4
74.7
71.971.1
68.7
7271.470.5
74.4
65.8
67.7
68.9
71.5
66.2
63.9
67.3
72.8
71.3
63.7
68.5
71.8
66.566.6
71.1
68.669.169.9
66.7
69
66.6
71.1
67.5
65.9
73.8
63.5
64.7
68.9
73.2
65.5
70.9
72.6
62.8
66.8
71.9
67.6
75.1
63.2
6765.9
70.1
68.7
70.369.670.3
636464.9
69.8
74.9
68.4
71.5
68
73.572.9
66
64.1
74.4
76.9
80.4
65.8
71.971.372
66.3
73.5
64.8
81
66.8
75.3
73.5
65.7
73.5
66.8
76
73.6
71.1
73.1
70.269.6
77.677
93
74.674.8
70.8
73.9
69.5
73.6
69.2
75
69.3
71.9
68.9
67.1
72.4
7170.2
71.4
73.5
71.5
69.1
71.8
70.3
73.6
70.9
67.8
65.2
79.9
69.2
74.2
70.2
73.372.5
66.1
74.9
71.6
72.973.7
70.4
73.873
71.3
73.2
71.5
73
69.5
72.5
78.3
74.9
71.8
69.9
74.2
70.2
72.272.373.3
67.7
74.5
76.8
68.2
72.7
70.4
74
69.7
72.1
75
68.8
67.2
62.5
69.4
64
66.8
70.6
72.1
70.770.170.4
73
69.8
67.567.5
70.3
67.4
68.8
74.9
69.6
70.8
63.4
68.9
63.363.563.5
65.7
68.6
59.7
63.1
61.3
58.6
67.967
60
58.7
63.1
59.2
71.3
59.5
63.1
65.3
61.161
72.7
61
68.7
60.8
66.1
62.5
61.2
64.163.864.765.1
62.7
66.967.6
63
68.6
65.7
62.7
65.3
6463.263.2
65.9
81.2
63.7
65.3
61.661.560.761
63.3
6160.5
63.1
59
66.9
58.7
63.6
66.3
59
64.5
5959.660.2
69.4
67.6
71
64.7
59.659.5
61.6
65.9
58.959.3
70.7
64.264.8
59.759.459.5
64.7
59.5
68.1
59.4
68.7
66.667.6
64.5
59.459.4
66.266.4
59.9
61.3
59.2
65.7
59.1
64.1
66.9
59.3
68.267.1
58.95958.357.9
72.5
64.6
68.6
57.557.5
60.3
65.8
57.857.5
64.5
68.4
59.4
68.3
65.666
58.4
62.7
76.2
63.6
65.1
62.3
66.365.9
5958.7
67.666.8
59.1
60.8
59.459.2
64.2
59.9
6666.8
61.2
70
63.4
70.7
66.5
82.1
71
72.4
77.6
70.2
66.967.3
77
80.6
67.5
73.4
67.1
59
66.3
64.5
59.159.2
64.1
59.659.6
61.9
60.3
71.2
62.3
73.8
59.7
67.5
77.4
58.559.2
68.9
71.4
69.1
67.2
70.3
65.566.3
68.5
61.4
71.8
67.5
74.7
62.7
71.9
60.7
63.2
70.2
61.8
69.9
6766
62.8
65.1
77.7
63.8
62.1
73.2
68.8
73.1
68.8
61.1
74.4
70.972
69.7
73.6
61.9
73
67
61.5
63.4
68
70.5
69.3
64
73.1
71.2
69.6
63.1
75.6
72.5
66.9
60.8
67.5
75
70
67.1
71
64.8
66.7
60.3
73.1
69
64.165
66.3
67.8
73.6
62.1
71.27170.269.870.3
67.8
63.4
73.6
65.1
74.2
7271.1
79.5
71.8
73.8
77.2
69.9
74
79.3
76
68.3
73.9
71.9
75.5
83.7
82.2
74.4
68.6
75.2
70.4
71.6
73.673.7
66.9
72.4
75.4
74
68.3
70.4
74.2
65.4
74.2
70.6
72.4
70.3
73.9
72
73.8
68.5
72.772.873
70
72.3
70.9
73.3
68.6
75.5
70.770.369.8
73.9
68.9
72.271.9
70.6
74.4
69.9
78.9
70.1
71.6
73.8
67
77.5
68
73.172.1
77.9
71.6
7473.4
77.3
71.172
74.6
71.1
75.475.675
70.5
73.6
69.6
73.9
71.1
66
69.1
73.1
65.7
69.5
73.4
77.2
70.370.570.3
71.5
76
78
66.966.5
73.3
66.9
72.8
69.9
68.267.5
65.9
67.1
69.469.769.7
67.5
72.6
59.959.3
73.4
69
74.1
69.3
75.1
69.468.9
73.6
64.9
68.6
61.4
74.573.9
66.1
70.2
67.667.7
74.574
70
72.9
68.6
65.5
74.5
65.6
61.4
75.3
60.1
67.3
69.5
60.3
67.2
62.3
68.269.2
70.471.5
84.4
67.368.2
73.5
68
64.4
61.3
74.3
70.3
71.9
62.261.2
71.9
61.561.561.6
72.7
64.264.1
68.4
70.7
73.6
68.4
92.4
80.2
6969.569.369.9
7272.871.7
68.269.1
71
72.8
74.6
59.9
62.2
59.7
65.5
58.558.7
67.5
65.6
61.162.1
65.966.1
58.9
66.966.7
63.8
73.3
68.868.7
73.272.671.8
76.7
70.9
68.1
72.3
66.567
70.8
66.8
73.9
76.4
60.9
63.9
74.9
69.3
60.4
59.160
68.3
59.6
67.7
59.3
63.2
68.3
72.9
67.9
75.7
61.3
67.8
64.2
60.5
67.3
60
67.3
76.9
79.5
66.9
62.1
65.7
61.8
69.9
59.8
61.7
60
64
62.8
59.559.1
60.8
64.3
59.460.2
67.3
61.9
67.6
64.7
5958.9
70.7
62.2
61
63.7
59.9
68.5
66.8
71
77.5
66.2
60.8
67.9
79.9
67.4
61.4
59.9
67.6
60.8
70.8
67.867.8
61
69.2
63.6
65.9
67.167.967.1
60.8
63.5
68.668.2
72.6
66.367.167.8
70.3
62
66.5
70.9
68.6
61.5
65.8
63.1
70.2
63
74.6
73.2
69.2
72.2
62.4
70.8
73
68.968
75
67.6
71.171.3
69.1
71.171.370.9
63.1
65.3
68.8
65.3
71.8
66.8
68.1
65.7
68.9
65.1
72.8
70.6
67.7
70.469.869.368.668.4
74.3
70.8
73.7
69.3
65.9
73.8
66.467.3
70.8
74.673.7
70.6
6564.2
69.969
72.472.4
68.3
71.8
66
69.5
71.8
73.774.6
69.6
68.4
70.469.669.2
64.5
73.2
71.7
68.2
71.4
63.4
70.5
69
75.674.8
76.9
66.9
72.1
73.8
70.269.3
66.2
72.471.87272.9
71.171.6
73.8
80.8
89.6
74.174.3
71.8
7070.47069.8
74.5
72.3
7474.6
71.8
76
71.972.5
77.7
75.6
78.3
72.373.1
76
72.7
74.1
72.472.3
74.9
71.2
73.6
72.1
88.7
72.1
75.776.3
72.371.7
72.9
69.5
76.2
68
66
64.7
59.6
65
63.7
68.8
70.7
73.1
69.8
71
72.7
67.969
74.8
68.368.2
66.3
62.263
65.7
62.2
65.3
68.9
65.2
73.4
63.8
65.765.666
59.1
64.3
67.8
71.5
64.7
65.9
58.6
60.4
65.1
72.1
70.9
61.7
59.7
66.6
67.9
70.9
61.5
59.660.2
66
59.1
69
62.6
60.3
69.4
66.9
60.5
71.3
65.4
60.4
65.2
71.1
59.8
62.2
69.2
65.6
58.8
60
66.6
58.7
68.4
61.9
65.3
68.5
58.558.6
66.666.5
62.6
73.8
59.259
61.2
60
68.6
60.6
65.9
70.7
68.1
76.2
64.265.3
61.4
64.5
66.8
63.662.561.9
66.2
63.2
70.1
66.5
62.7
66.6
64.6
62.462.563.2
68.667.8
63.863.4
65.565.464.5
67.6
63.5
61.9
68.8
66.3
62.7
66.5
68.4
62.8
66.8
61.5
70.1
89.6
79.8
76.4
72.5
70
72.5
76.6
67.1
64.7
63.5
68.3
71.7
65.4
64.165.1
72.8
6666.666.766.4
63.263.8
69
64.765.164.765.164.8
63.2
60.3
62.4
63.6
61.4
62.9
59.9
62.9
64.6
62.7
58.9
67.166.5
67.7
60.961.7
66.6
5958.858.558.4
62.861.9
58.5
59.9
69.1
66
62.8
60.5
75.3
77.2
58.6
69.1
58.258.9
62
66.7
59.1
61.7
58.359.1
61.261.6
63.163.6
66.2
69.269
63.6
68.4
58.7
67.468.3
58.8
6766.467.367.6
62.2
70.1
65.6
69.2
64.7
63.4
59.5
64.5
60.7
69.3
63.7
69.3
73.6
66.866.366.1
68.3
70.2
59.2
61.8
60
73.6
68.3
60.4
66.7
69.5
65.4
69.1
71.7
65.4
62
67
73.4
64.8
69.5
66.1
63.4
7069
59.260
6464
71.3
74.1
64
70.37171.570.7
67
71.2
65.8
67.6
70.5
64.8
71.9
70.5
65.3
75.7
6969.9
66.666
71.3
73.3
68
72.6
67.3
73.8
68.268.769.8
72.4
73.9
69.570.1
68.7
71.7
72.9
66.2
70.6
65.8
68.2
70
66.2
68.4
66.867.7
72
67.8
66.3
75.9
72.3
68.4
66.4
82.2
68.8
71.4
75.9
70.5
67.5
65.566
69.1
67.868.3
75
71.3
69.9
71.271.8
73.9
78.1
70.2
74.573.5
71.571.6
74.4
70.869.9
67.7
73.3
69.8
72.4
71.2
73.3
71.8
69.269.270.271.271.272.1
69.7
72.1717070
72.6
67.1
74.2
72.371.9
70.270.671
65.3
70.6
59.9
63.3
59.6
66.2
68.6
61.862.4
65.565.1
68
66
64.4
59
63.4
61.662.662.5
65.4
62.7
69.3
64.4
66.4
60.6
63.3
65.4
64.264.664.6
59.8
69.270.1
60.4
68.9
61.761.761.5
59.4
69.2
66.9
60.159.3
73.8
70.2
63.5
59.1
63.8
66.7
61.1
58.9
68.7
66.4
61.1
65.1
60.1
63.2
61.4
63.262.9
58.358.8
61.361.5
67.8
63.8
61.5
67.8
58.1
62.7
68.4
63.7
66.2
58.558.4
61.4
57.5
65.6
57.9
62.1
66.5
68.3
65.3
57.658.1
66.166.1
62.5
65.1
59.3
60.7
65.16666.9
57.4
66.6
69.768.7
60.7
57.9
64.4
67.166.7
56.656.4
68
62.4
57.356.557
64.6
65.8
56.4
58.6
56.7
68.2
59.9
62.2
68.1
56.2
64.6
61.6
62.9
66.266.2
56.9
62.8
68.5
62.7
57.9
59.5
63
57.8
67.6
61.1
59.9
62.1
69.5
57.3
65.9
70
59.759.7
68.3
70.7
57.358
63.764
57.357.357.658.257.557.857.7
62.8
61.6
65.3
60.3
58.257.958
64.7
61.2
57.8
60.7
57.2
61.560.5
65.164.3
60.6
69
57.857.1
61.5
60.3
62
57
60.7
67.5
58.457.557
71.8
58.157.757.457.957.5
63.4
58.858.1
62.562.5
64.4
61.6
67
64.7
58.858.157.558.558.9
65.3
5857.958.359.2
68.468.6
62.9
59.859.3
68.4
60.1
68.7
59.259.3
61.461.9
71.8
69.2
67.6
64.8
63.1
73.4
63.6
66.7
62.9
6060.4
65.5
69.2
59.9
68.8
60.4
66.7
60.9
62.2
69.7
67
62.1
6665
60.760
65.6
60.3
65.8
60.8
62.7
6666.7
65.1
66.9
61.961.4
67.2
66
61.8
64.7
63.5
60.7
64.7
70.2
68.5
61.9
70.6
72.5
66.565.7
69.6
66.9
60.3
72.3
63.2
67.3
69.4
72.9
71.4
63.262.1
68.6
63.6
60.1
66.8
68.269
65.2
72.7
69.8
61.9
70.4
61.8
70.3
67.4
60.7
58.6
64.3
69.7
64.763.8
60
68.7
72.1
68.8
60
67.9
70.1
67.467.1
65
66.9
70.6
65.665.6
67.266.566.6
6867.567.7
70.7
64.2
6766.4
70.8
65.2
68.7
67.1
69.6
68.3
71
66.7
69.3
70.6
68.4
71.1
67.166.9
70.7
68.8
66.166.867.8
70.7
78
72.973.3
65.4
70.9
66.866.5
67.8
65.4
71.4
67.2
68.6
65.2
70.4
67.1
45
50
55
60
65
70
75
80
85
90
95
12:00 AM 12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/18/19 to 11/24/19 ‐Minute Intervals
F‐Mon F‐Tue F‐Wed F‐Thurs F‐Fri F‐Sat F‐Sun
Location F: 28th and Harbor Dr
45
50
55
60
65
70
75
80
dBA
Time
Barrio Logan Nighttime Noise - 11/18/19 to 11/24/19 - LOCATION F
59.5
57.858.2
60.0
62.9
65.065.6
64.9
63.7
59.2
57.3
59.5
57.0
61.3
57.856.8
57.658.3
59.0
60.962.0
63.163.8
62.362.0
60.2 60.1
58.1
61.7
64.3 64.4 64.564.1 63.7 63.8
64.5 64.2 64.3
65.765.0 64.9
64.363.8 63.4
62.9
64.8
62.761.6
55.9
54.455.2
54.054.9
57.0
59.8
61.2 61.0
59.460.0
58.6 58.2 58.3 58.659.6
58.6 58.358.9
57.957.2
55.6 55.9
58.2
57.0
54.0
55.456.0
59.9
62.2 62.1 61.8
60.4
61.6
58.9
57.1
56.057.0 57.1 57.2
55.456.2 56.1
59.1
61.0 61.161.9
59.7
57.457.9
57.5 57.4
60.9
63.963.3
62.2
59.960.4
57.7 57.8 57.658.3 58.4 58.5
57.7
59.6
58.3 58.3
60.6 60.9 61.2
57.957.7
54.8 55.1
57.0
60.6
62.9 62.9 62.961.9
59.2 59.3
56.755.9
58.8 58.5
55.4 55.3
57.957.0 56.7
58.1
59.6 59.2 59.4
57.456.4
57.458.5
61.0
63.3 62.9
61.8
59.6
57.9
56.256.9
55.5 55.356.0 56.3
57.458.3 57.8
58.8
62.1 62.5 62.861.8
12:00 AM
1:00 AM
2:00 AM
3:00 AM
4:00 AM
5:00 AM
6:00 AM
7:00 AM
8:00 AM
9:00 AM
10:00 AM
11:00 AM
12:00 PM
1:00 PM
2:00 PM
3:00 PM
4:00 PM
5:00 PM
6:00 PM
7:00 PM
8:00 PM
9:00 PM
10:00 PM
11:00 PM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐ Hourly Intervals
G‐Fri 10/25 G‐Sat 10/26 G‐Sun 10/27 G‐Mon 10/28 G‐Tue 10/29 G‐Wed 10/30 G‐Thurs 10/31
Location G: Boston and 32nd
59.5
57.858.2
60.0
62.9
65.0
61.4
59.8 59.5 59.3 59.4
61.2
55.9
54.455.2
54.054.9
57.057.0
54.0
55.456.0
59.9
62.2
57.457.9
57.5 57.4
60.9
63.9
57.7
54.8 55.1
57.0
60.6
62.9
57.456.4
57.458.5
61.0
63.3
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐ Hourly Intervals
G‐Fri 10/25 G‐Sat 10/26 G‐Sun 10/27 G‐Mon 10/28 G‐Tue 10/29 G‐Wed 10/30 G‐Thurs 10/31
Location G: Boston and 32nd
61.6
60.2
61.462
60.759.860.560.160.5
61.761.662.3
59.859.258.6
60.360.359.560.6
5958.259.359.759.659.3
58.858.658.45959.55958.5
62.2
5959.2
61.8
5958.6
60
58
60
57.857.857.657.758.257.957.557.5
58.9
56.657.458.158.65858.9
5756.8
59.2
57.9
55.255.3
57.957.858.357.7
56.355.456.357.157.6
58.858.458.5
61.7
57.75858.558
59.9
56.856.1
53.552.8
54.754.254.3
55.656.3
58.1
56.757.558.2
56.8
59.559.65957.9
59.459.760.8
57.8
55.5
57.857.958.557.757.1
59.558.758.45858.2
56.6
5857.8
55.7
57.456.957.156.156.5
57.857.8
59.158.858
59.258.359.1
56.256.757.6
55.6
59.5
57.5
54.6
56.356.657.5
55.755.555.4
56.8
55.3
57.1
59.358.8
57.656.757
58.5
63.764.5
60.7
58.25959.359.759.558.759.4
57.256.756.657.458
56.456.6
58.9
57.256.7
58.958.2
56.957.457.1
58.4
56.957.657.556.857.657.556.656.7
58.557.857.157.358.459.358.5
57.2
59
60.561
62.5
60.160.3
58.358.758.859.460.2
58.858.158.158.959.558.7
60.5
5958.7
60.1
61.861.362.1
59.959.5
60.760.46162.163.1
60.160.860.459.3
61.5
58.758.758.859.460.2
61.460.3
66.8
58.759.158.959.1
57.9596059.36060.8
62.262.6
60.4
61.661.3
63.5
61.561.662.462.863.5
6261.261.862.763.162.263.1
61.8
63.763.563.663.663.764.7
62.963.362.663.6
64.963.964.764.364
62.46362.9
64.7
62.7
63.964.465.2
6463.663.763.662.96464.163.663.563.9
63.463.662.962.762.362.4
63.564.463.66464.264.665.165.365.264.864.964.664.8
64.365.465.5
64.163.963.663.3
64.763.764.665.265.465.965.266.365.365.665.2
646464.8
67.267.1
64.56565.765.465.865.8
67.1
65.765.765.965.1
66.365.664.865.965.565.965.665.5
61.560.760.761.461.361.8
63.3
60.660.661.161.662.361.762.862.162.962.462.662.962.46261.261.7
64.6
60.561.360.9
62.262.162.762.5
59.7
61.460.459.560.359.9
61.46160.661.462.3
64.3
60.460.3
61.561.161.160
61.260.660.360.8
58.958.3
60.3
57.958.558.359.36058.959.959.8
58.258.7
60.359.3
56.7
58.7
60.7
59.159.659.158.258.358.4
60.2
62.3
59.65959.860.7
58.859.159.5
61
58.9
61.4
6059.259.259.760.2
58.858.6
59.859.759.2
61.5
59.560.660.761.360.259.659.459.459.1
60.159.560.5
61.8
60.259.1
60.760.160.6
59.2
60.759.9
61.16059.2
61
62.361.761.560.460.5
57.458.4
59.8
61.161.4
58.7
56.656.356.456.1
58.2
59.560.459.459.860.159.759.5
59
60.460.660.359.560.1
62.5
61.2
58.2
59.659.359.159.859.2
6160.459.8
58.458.758.458.157.957.257.75756.857.556.556.4
57.957.856.757.556.4
5857.858.6
6059.1
56.75756.4
58.459.460
58.559.658.658.358.96060.459.3
57.9
59.259.559.960.3
61.8
59.258.359.259.258.3
59.9
58
61.2
59.859.258.759.3
60.559.459.3
60.560.159.65959.7
61.3
58.8
60.660.9
58.958.959.460.5
5959.759.658.7
57.5
58.9
57.156.956.5
58.7
56.8
59.2
61.9
59.35960.160.760.9
58.2
59.458.759.158.4
59.8
61.260.860.459.6
61.8
59.260.359.959.7
5959.759.759.259.7
58.2
60.5
58.55958.658
59.558.859.459.460.26060
58.8
60
57.458.2
59.559.460.359.959.1
57.758.558.658.759.4
60.6
58.957.9
60.4
58.85959.459.260.359.3
60.8
59.459.759.9
63.4
61.260.3
62.361.262.261.6
63
61.461.961.161.661.161.161.6
60.460.659.960.761.861.9
60.360.960.1
61.461.5
63.163.7
60.361.261.36160.561.361.361.6
6161.161.161.461
62.262.962.261.462.361.9
56.355.555.8
58.457.7
5554.653.6
5555.354.655.5
58.4
61.5
5655.956.756.555.7
57.256.8
58.2
60.9
56.9
54.755.255.6
54.2
56.255.454.755.156.256.556.1
54.254.254.554.254.654.6
55.955.756.555.555.154.354.153.753.5
55.354.654.255.155.655.5
545353.354.2
52.8
54.353.453.153.654.754.854.754.554.153.8
55.6
57.4
54.753.954.753.754.154.954.45554.353.453.65453.7
54.253.652.95454.955.854.854.4
53.2
51.8
53.653.3
54.7
53.252.2
54.455.3
5352.6
55.354.755
53.3
55.4
52.953.5
55.155.154.3
57.4
55.954.854.454.9
53.4
55.4
54.154.7
5757.156.456.1
58.2
56.7
55.254.453.454.2
57.5
56.1
53.553.8
60
57.5
55.956.9
55.254.7
53.152.953.154.1
52.7
54.954
52.8
54.954.8
61.1
53.4
54.8
57.3
53.954.254.254.55453.452.3
54.353.352.7
55.9
535452.95454.8
53.2
55.5
53.353.653.853.85454.1
55.5
52.953.454.2
52.55352.3
54.353.853.653.753.7
52.953.252.153.1
54.855.254.6
53.353.854.453.454.555.6
53.954.1
55.5
53.353.3
55.1
56.3
55.155.1
53.753
55.3
53.7
55.3
53.654.754.153.1
54.553.854.9
53.7
5554.153.553.5
52.253.3
54.6
52.653.352.952.6
53.9
51.852.853.15352.453.153.854.753.6
52
56.156.3
55.154.555.556.455.5
54.355.1
53.954.555.355.355.355
5454.453.753.754.1545453.5
54.8555555.456.155.955.355.5
57.1
55.454.4
55.854.7
56.355.8
53.8
55.154.153.953.8
55.556.5
59.4
5554.353.8
55.6
54.454.2
52.7
60.1
58.7
54.354.153.654.755
56.255.9
54.5
56.555.655.555.255.9
54.555.655.855.955.354.5
55.9
54.15455.1
57.658.3
55.255.956.456.256.557.257.957.557.257.857.757.757.557.3
59.4
58.258.659.2
57.458.259.159.558.559.2
57.857.8
5958.658.458.558.8
57.358.4
60.359.858.758.6
56.957.657.958.45959.9
58.658.258.9
56.7
59.6
56.7
58.7
57.256.756.3
57.557.1
59.458.8
56.8
54.4
55.8
54.3
57.257.356.8
58.257.557.656.755.7
53.1
55.955.1
52.853.2
56.5
54.95453.854.354.854.653.6
55.9
53.653.753
54.4
55.655
52.452
53.553.853.353.353.7
52.552.551.4
53.152.8
51.452.252.452.3
53.754.454.453.554.153.952.95351.9
53.153.854.353.353.652.6
54.153.954.4
52.7
5555.8
54.6
53.154.154.9
53.553.754.6
57
53.153.7
51.8
54.1
52.5
54.6
58.1
56.3
54.9
56.155.654.954.4
52.4
54.855.8
53.753.7
56.9
60.3
53.954.954.555.5
52
54.55454.354.9
53
54.853.853.853.6
54.955.455.5
56.756.455.454.355.354.8
56.356.656.956.2
53.9
55.4
58.5
56.156.3
55.155.7
57.457.7
55.355.655.955.1
52.4
5656.15554.953.954.454.6
56.4
54
56.7
51.3
53.3
56
53.8
55.15454.754.855.3
53.553.3
54.855.3
52.2
53.752.752.152.8
54.855.655.2
53.9
56.8
55
53
54.9
56.156.855.956.856.9
54.3
56.8
54.854.7
56.9
54.7
57.558.4
56.156.757.156.556.3
57.656.856.756.4
58.257.557.457.5
5856.956.355.755.656.256.356.855.856.857.257.8
56.2
57.557.657.856.957.258.357.8
56.557.5
59.9
58.458.258.15857.857.957.957.9
59.559.26059.160.26059.860.2
59.659.259.359.559.9
61.260.8616060.759.860.460.159.860.2
60.760.160.760.559.760.26059.859.5
60.161.1
65.9
61.761.560.9
62.4
61.260.26161.961.161.461.260.8
62
60.560.36160.459.6
61.261.160.761.261.660.8
6261.762.661.961.86160.760.2
61.461.161.861.161.961.3
62.662.662.362
63.262.862.862.863.163.862.7
67.3
62.9
64.263.562.562.361.962.161.9
63.462.762.862.262.5626262.4
63.763.8
56.355.554.454.2
55.956.65756.656.1
58.7
57.457
58.358.458.858.258
59.5
57.858.157.656.8
58.658.357.758.7
61.5
58
56.757.7
56.2
54.6
56.757.156.256.356.1
54.7
56.3
58.257.857.957.758.3
56.757.157.5
56.2
58.658.4
57.1
55.8
54.555.3
56.9
58.158.357.358.35959.8
57.257.958.958.5
57
59.159.6
55.855.4
57.156.556.255.856
57.857.757.358
54.854
56.957.356.956.455.5
57.558.2
56.857.858.2
56.2
54.5
56.35757.658
55.8
57.657.857.1
58.9
57.7
59.4
60.6
58.559.258.959.659.259.658.759.558.858.358.4
61.1
58.859.6
56.857.757.458.1
55.455.95756.357.257.657.358.258.857.958.658.358.257.6
59.859.2
56.257.158.257.5
55.155.6
58.158.859.358.6
56.4
61.5
59.1
57.756.757.657.5
56.2
58.2
56.9
5555.1
56.95756.856.757.157.756.756.756.156.755.8
54.5
56.757.256.556.456.857.557.757.1
54.9
57
55.855.9
57.5
59
57.256.255.956.957.4
54.655.755.5
57.857.9
56.655.856.7
53.9
55.5
57.156.457.1
55.9
57.158.158.157.157.858.459.2
57.558.3
56.9
58.359.4
5858.358.5
57.257.157.258.358.75858.458.1
56.6
57.857.557
58.457.5
58.858.958.5
56.95858.7
57.458.357.357.1
58.357.558
59.358.258.958
56.4
58.358.858
59.558.4
59.759.759.660.560.861.460.960.160.860.861.26160.8
61.962.462.56261.56261.361.760.860.861.461.962.162.662.7
65.2
61.861.662.262.763.162.261.761.461.862.762.561.561.562.662.962.6
6261.461.862.76363.763.162.562.863.164.263.863.863.7
62.963.462.863.564.464.464.3
65.6
64.263.663.16363.56463.264.164.364.764.7
64.263.763.7
65.164.663.863.964.86564.865.365.165.165.965.365.765.5
64.3
62.962.863.263.663.36362.4
56.556.856.9
55.356.456.657.557.457.5
58.75959.759.6
58.2
59.9
58.7
60.5
58.458.25958.559
57.5
59.258.459.1
56.957.75758
56.156.857.458.359.1
57.156.3
57.6
54.7
57.4
60.6
58.8
55.5
57.858.8
5757.8
56.556.956.756.656.4
55.154.955.55655.6
54.4
55.854.955.254.8
56
53.253.95453.95454.253.7
54.6
56.157.156.155.154.754.354.954.3
55.656.6
54.755.2
54
55.555.3
53.552.6
54
565554.954.955.555.1
53.9
52.5
55.1
56.9
54
55.354.755.355.556.2
54.454.355
52.953.853.2
55.3
53.753.2
55.1
56.8
53.6
55
53.2
54.4
51.2
53.55453.454.154.254.353.9
53.4
59.1
55.1
53.3
51.9
55.456.3
54.555.5
53.154.1
55.555.956
53.253.7
55.2
5354
55.555.4
52.4
53.954.554.2
57.8
56.4
555656.256.6
54.554.4
56.9
55.155.556.356.5
54.454.5
53
57.8
54.355.455.955.454.8
56.6
55
52.1
55.1
53.654.355.454.453.6
55.454.7
56.6
52.6
54.454.154.854.853.7
56.255.255.755.355.556.356.6
54.655.556.255.855.956.9
55.6
5756.456.955.9
57.256.757.757.1585756.857.3
55.455.4
56.856.7
58.7
56.957.757.958.258.2
57.458.358.357.958
57.157.357.3
58.5
56.3
59.1
57.758.457.6
55.3
57.358.258.158.458.6
57.5
5958.658.458.8
60.160.760.660.861.2
60.760.659.960.360.361.16059.859.560.360.460.560.159.9
61.5
63.7
60.6
61.861.861.261.561.461.361.161.561.761.5
6261.561.661.762.362.16261.9
60.460.661.361.761.461.1
61.862.562.762.761.862.161.962.862.562.862.162.762.462.462.3
61.862.662.962.962.362.461.961.6
63.463.8
62.562.66262.863.66363.963.362.962.562.261.862.161.762.16262.462.462.662.963.3
65.8
64.364.363.563.963.763.663.763.9
63.4
6262.763.562.662.6
56.557.157.9
56.456.655.9
59.6
58.457.9
59.5
57.958.5
59.959.659.1
61.861.9
57.858.357.757.8
5655.9
58.8
56.3
58.4
57.156.855.8
57.1
55.454.6
57.857.5
54.955.455.254.8
56.4
57.657.957.358
56.155.8
57.558.4
5656.455.4
53.3
55.456.556.856.5
54.4545554.2
56.857.657.556.8
54.3
55.7
57.358.1
56.7
58.3
56
57.2
55.856.756.357.3
55.855.554.4
56.757.5
52.2
54.6
56
59.1
56.355.8
57.9
56.3
54.2
55.7
54.2
56.255.155.9
53.1
54.8
53
56.7
55
57.657.256.6
54.4
58.7
56.155.7
57.858.358.1
61.1
58.1
53.854.555.254.4
55.8
54.2
565554.654.3
57
55.6
54.1
58
55.956.156.45656.657.6
59.7
57.656.7
58.2
56.6
57.8
56.55656.2
57.558.557.558.6
55
57.858.557.7
55.856.8
55.654.9
57.2
59.3
56
61.7
58.4
57.158.158.9
56.757.157.257.157.157.9
56.756.3
58.2
56.6
5859.1
56.8
58.957.9
59.960.4
5554.854.6
57.1
55.156.155.956.5
58.8
56.8
58.2
56.3
57.757.557.857.5
60.3
57.958.5
57.156.2
57.658.758.858.8
57.2
61
58.65859.158.6
57.257.157.257.756.856.5
59.359.860.5
59.258.558.959.659.960.8
59.558.759.5
58
59.859.959.158.858.758.558.2
57.258.358.958.958.958.8
6059.758.658.959.158.257.8
56.2
58.95959.259.859.560.359.2
60.760.361.160.461.260.66161.861.261.3
59.9
61.460.660.761.361.760.961.362.262.8
61.561.66261.361
62.9
60.660.259.9
61.462.262.362.462.7
6261.962.462.161.661.762.4
61.160.561.561.261.662.261.162.262.161.161.361.662.162.863.2
62
63.563.263.462.96262.662.561.8
63.363.562.463.46362.362.3
63.864.5
63.2
64.6
63.263.663.463.463.464.164.863.76463.263.262.763.463.563.763.3
63.8
68.5
63.863.863.663.362.8
64.863.963.563.663.5
6463.5
45
50
55
60
65
70
75
80
85
90
95
12:00 AM 12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 10/25/19 to 10/31/19 ‐Minute Intervals
G‐Fri 10/25 G‐Sat 10/26 G‐Sun 10/27 G‐Mon 10/28 G‐Tue 10/29 G‐Wed 10/30 G‐Thurs 10/31
Location G: Boston and 32nd
45
50
55
60
65
70
75
80
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
8:00AM
4:00PM
12:00AM
dBA
Time
Barrio Logan Noise - 10/25/19 to 10/31/19 - Location G
56.8
54.9
58.259.0
60.861.9
59.1
55.0
53.6
60.761.6 61.4
56.0
58.6
54.8
60.6
61.8 62.1
58.6
57.1 56.9
59.9
62.463.2
58.6
57.558.2
60.9
62.5 62.7
58.0
56.0 55.856.5
58.2
60.159.0
58.159.2 59.1
61.462.2
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/11/19 to 11/17/19 ‐ Hourly Intervals
H‐Mon 11/11 H‐Tue 11/12 H‐Wed 11/13 H‐Thurs 11/14 H‐Fri 11/15 H‐Sat 11/16 H‐Sun 11/17
Location H: 28th north of Main
54.85454.254.254.753.7
56.1
54
5656.9
55.3
64.2
61.6
57.2
56
53.9
55.354.8
57.3
54.655
56.655.855.755.855.7
57.257.3
54.854.5
55.85554.154.954.554.754.9
54.25453.9
58.2
59.4
61.9
65.4
58.4
55.354.454.153.8
5353.2
54.754.455
56.3
54.754.354.2
55.7
54.354.95554.6
57.9
56.4
62.4
56.6
53.65453.754.65554.354.3
53.654.15454.154.4
53.253.653.9
55.255.7
54.454.354
55.6
53.954.3
55.856.1
5453.253.153.353.6
58.1
53.653.453.5
55.5
52.75353.15353.253.353.654.25554.7
53.453.7
56.4
54.253.753.6
55.6
57.35757.358.2
55.4
57.2
53.154.2
55.8
53.953.553.7
57.6
53.853.653.854.353.454.555
56.7
55.3
53.8
59.658.5
56.4
59.158.558.358.257.857.7
54.4
56.2
54.95554.85555.155.154.85454.253.9
59.4
54.454.7
72.3
59.6
53.65453.953.454.554.4
52.753.153.4
55.5
53.653.85454.454.354.955.9
57.557.557.458.45858.659.459.159.558.758.85959.4
57.657.458.559.159.259.759.4
58.158.257.757.4
61.1
59.7
57.658.258.958.2
60.3
58.758.658.658.758.958.959.559.65959.360.259.560.36060.259.659.6
60.360.860.2
61.4
59.26060.759.759.66059.659.859.6
61.261.460.6
58.359.1
60.360.160.759.9
61.961.961.260.861.160.761.1
60.560.860.761.260.26161.6
64.1
65.4
63.2
61.8
59.558.959.259
61.360.961.160.360.7
59.558.959.658.659.459.459.9
61.560.460.5
63.7
59.7
63.5
60.360.160.359.55958.4
56.256.8
58.558.457.856.856.8
58.757.957.857.857.7
56.757.758.4
60.660.360.159.860.360.260.460.3
61.660.560.560.9
64.6
61.361.662.462.361.762.462.562.462.4
65.2
62.361.861.761.560.960.561.4
63.162.862.461.561.962.9
69
67.1
63.9
66.2
6363.362.763.362.7
55.856
57.4
56.256.257.356.857.2
64.7
67.9
66.3
62.761.76162
58.857.857.756.857.15757.957.657.356.457.256.355.8
57.8
56.156.456.156.15655.95656
59.158.3
56.357.156
57.357.6
58.9
57.156.3
60
5857
55.8
58.4
56.356.95756.8
59.959.961
54.955.3
57.356.3
57.8
55.155.5
61.8
54.954.35554.154.454.855.7
57
53.453.253.754.453.9
55.554.5
58.4
55.35555.8
59.3
53.3
54.9
56.1
54.954.455.154.554.5
53.3
55.9
54.155.1
52.553.2
55.2
53.352.9
55.3
52.5
56.5
52.952.652.451.551.551.952.452.452.6
51.4
52.653.2
55.1
52.85252.3
54
52
54.7
55.9
53.953.4
56
52.6
51.452.1
53.954.7
52.752.552.352.151.952.351.752.3
53.553.152.4
54.8
52.852.953.152.251.6
55.2
52.3
54
51.552.453.5
51.4
53.8
51.95252.4
55.856.3
52.4
54.8
52.151.953
55.15453.552.8
56.4
55.1
53.652.852.6
58.5
68.3
57.6
52.95353.753.8
57.8
59.159.759.959.860.86059.158.3
6160.759.659.860.2
58.7
60
61.861.461.561.360.2
61.5
60.360.561.362.261.160.9
62.1
60.861.1
59.96059.4
60.661.160.460.761.360.3
57.558.4
61.161.761.661.3
59.6
61.461.562.26261.960.960.960.8
6261.861.861.361.762.861.861.561.261
62.5
6161.8
63
6161.560.66161.562.161.7
63.9
61.661.660.9
62.1
60.159.8
61
62.561.5
63.562.9
61.661.961.760.961.561.962.262.362.6
63.5
61.3
59.560.461.461.960.961.462
60.5
59.1
60.761.860.961.2
59.55957.9
60.159.659.5
58.2
59.8
58.459.158.6
60.360.4
57.957.758.358.759.758.959
61
62.561.8
63.562.462.3
64.3
61.160.659.7
62.662.7
61.5
64.3
62.9
61.660.961.161.261.2
61.7
63.1
61.962.162.162.762.963.762.862.76262.461.9
63.6
61.361.26261.1
62.5
58.958.658.958.6
54.95554.955.556.455.6
65.8
58.3
54.455.556.557.4
59.6
55.454.455.3
58.5
53.5
55.254.5
57.3
55.355.5
57.958.357.5
5553.95453.553.7
56
54.755.35554.1
56
54.453.653.1
54.65454.9
53
54.254.6
52.95354.153.7
55.9
535454.253.854.9
56.655.5
53.553.153.152.252.4
54.554
5252.653.352.9
51.751.451.451.551.953
61.1
64.2
53.6
52.2
63.7
62.362.2
57.5
54.1
62.4
59.859.659.7
55.155.2
52.5
54.8
56.5
57.758.157.257.757.957.758.558.8
57.558.257.557.757.8
59.1
63.4
59.4
68.5
5857.557.358.258.157.556.5
53.653.554.154.254.8
53.252.5
53.954.153.6
55.856.4
53.754.4
56
54.254.754.653.954.255.254.653.753.954.2
55.9
54.754.253.453.1
54.6
55.8
53.353.554.254.254.7
57.9
53.853.85453.754.755.554.7
53.554.353.453.6
56.7
58
54.254.3
52.95454
56
57.3
53.8
57.7
54.1
56.7
55.5
54
55.8
57
53.953.5
55.5
54
57.6
59.160.159.959.260.26060.460.1
59.259.560.360.7
62.2
60
61.961.160.6
59.360.259.760.360.360.160.3
61.8
6463.4
60.259.8
63.4
59.959.860.360.561.361.26161.762.7
61.461.261.862.261.66261.560.760.5
61.961.4
63.1
60.160.760.760.5
63.362.8
60.761.561.662.263.262.1
64.2
62
65.1
61.762.3
60.361.360.8
6262.461.862.462.162.461.561.562.6
61.460.661.261.261.5
60.2
58.658.658.9
60.9
58.759.160.259.660.660.3
6262.3
60.76161.6
63.364.1
61.861.6
63.162
65.665.1
60.159.459.959.3
57.4
59.5
5858.757.957.257.9
62.2
58.958.5
59.758.758.859.7
61.962.263.162.662.962.161.5
63.162.463.5
61.962.461.461.662.462.86262
63.362.262.863.563.163.6
64.9
68.1
6362.363.162.362.562.662.9
61.9
63.1
61.16262.3
63.7
62.261.662.361.862.261.862.2
59.658.757.9
64.3
61.5
57.358.1
63.864.163.6
58.558.3
60.7
57.6
59.458.5
56.857.2
59.1
57.3
59.3
56.255.7
56.9
60.3
57.557.156.65655.956.756.45756.355.956.556.455.8
57.2
61
56.856.355.85656.757.156.756.6
57.558.2
56.557.15757.2
58.457.958.758.75856.957.757.657.557.9
58.458.759.559.659.859.960.359.9
57.656.657.25756.356.757.257.156.456.755.656.5
57.8585756.9
55.4
57.6
55.655.1
58.7
55.755.856.355.955.355.556.1
54.7
56.5
54.354.654.3
55.8
54.454.854.5
59.6
56.557
58.2
54.95555.955.5
58.1
54.954.555.1
56.657.4
61.5
60.360.659.960.760.860.459.858.9
57.7
55.854.75555.6
54.354.6
5654.9
57.256.8
58
56.6
54.7
60.7
56.155.555.5
54.35454.7
56.3
5555.155.654.754.754.654.4
56.1
54.554.654.35554.554
56.857
55.354.254.654.5
55
56.3
59.6
54.654.154.7
55.9
53.853.553.8
5555.95757
58.9
57.1
59.660.259.4
63.7
56.957.558
59.458.6
61.7
58.8
60.659.960.86060.2
5959.860.1
58.859.559.759.259.159.159.159.5
60.3
61.560.660.960.360.26060.560
61.5
59.258.5
60.5
62.461.461.160.760.760.8
62.762.161.262
59.859.760.461.36161.161.361.3
61.96262.162.161.361.761.862.161.9
61.461.861.461.662
63.4
60.961.460.561.561.861.5
64.1
61.9
64
61.3
63.962.861.961.361.960.96161.161.36161.3
62.863.9
66.3
64.164.8
62.661.961.962.262.6
61.5
62.8
66.2
63.363.7
66.2
63.5
60
58.457.958.2
59.859.360.360.661.7
60.560.360.561.1
62.4
64.564
60.2
62.763.16463.863.6
65.3
63.962.962.561.561.862.262.9
65.1
62.662.262.362.362.462.562.6
6463.363.764.163.1
64.864.664.4
69.570.1
62.262.862.362.162.261.161.261.962.4
63.9
62.4
63.9
56.655.756.85656.156.2
57.7
68.6
63.9
60.259.959.259.3
60.8
64.2
62.8
59.8
57.35755.955.956.556.4
54.955.955.556.3
58
56.756.7
58.158.2
56.356.257
58.259.2
57.157.556.656.4
5555.756.355.955.8
57.556.856.3
59.1
55.756.6
58.7
55.956.557.3
55.855.755.455.456.35756.656.9
62.561.5
56.757.856.956.756.156.9
55.355.8
57.1
55.755.85555.8
5756.6
57.957.258.158.857.9
59.6
60.8
57.657.557.2
5655.655.355.356
58.258.6
57.157
55.65656.356.856.155.955.8
57.356.95655.655.4
57.557.256.2
57.658.257.658.1
63
61.6
58.3
63.9
61
57.156
57.8
55.9
57.4
55.955.6
58.7
56.455.956.756.95757.1
55.756.357.256.355.8
62
55.855.255.155.255.5
56.455.755.9
68.1
62.1
58.9
56.6
58.25857.957.558
55.855.7
57.356.756.555.95655.155.555.255.7
57.1
55.655.8
57.9
56.255.455.955.455.8
57.1
55.4
56.656.357
5959.6
58.458.658.9
60.360.859.76061.161.262.3
60.660.960.259.4
60.860.960.761.261.761.461.261.160.961.161.2
64.7
61.861.56262.7
60.860.560.660.960.661.160.66161.7
63.6
61.4
63.1
61.7
63.1
60.260.561.361.560.661.561.761.9
60.7
63.4
61.761.461.660.7
62.361.462.162.663.562.9
61.461.662.5
61.1
62.862.2
60.761.5
62.861.861.561.3
63.364.163.162.561.461.160.961.161.2
6464.3
62.463.162.762.762.262.663.2
64.965.2
62.962.763.5
60.961.1
6464.7
62.562.561.561.661.862.762.262.6
61.261.260.961.361.1
58.958.8
60.359.660.2
58.958.158.759.558.559.2
62.363.162.362.161.9
63.362.9
61.5
64.164.3
62.962.7
67.2
64.3
62.162.162.3
67.6
62.561.460.961.862.5
64.2
62.9
61.361.961.661.9
63.163.262.563.562.46362.96262.361.2
65.9
63.4
64.8
66.2
61.3
66.2
61.360.7
61.962.2
60.1
64.6
58.6
60.4
5757.558.6
57.257.6
61.7
58.157.656.955.956.5
54.6
56.7
58.2
60.1
57.2
58.8
57.4
54.7
55.956.756.8
5555.955.3
56.656
58.157.4
59.6
55.755.8
57
62.3
57.6
55.455.15555.554.855.855.255.756.657.1
55.755.655.956.855.756.555.6
57.558.4
56.457.4
5656.1
57.458.1
56.956.155.856.3575656.557.657.557.357.156.7
57.55756.356.4
54.755.755.354.955.956.5
62
56.155.854.855.1
56.4
5554.45554.3545453.553.8
55.755.356
54.6
56.3
54.154.253.953.953
54.254.553.954.655.155.454.9
56.85756.755.654.955.155.2
58
55.2
56.5
54.854.854.453.853.85454.854.65454.754.7
58
55.354.9
56.4
58.2
55.555.55555.755.955.5
56.9
60.5
57.1
55.254.95555.655.455.1
56.7
55.155.1
57.5
54.954.854.955.254.655.455.155.2
5655.855.8
57.556.8
55.55656.656.656.855.7
57.1
55.9
57.156.3
57.6
55.856.555.954.855.854.9
56.15554.854.755.255.455.655.655.8
60.2
55.9
58.658.157
58.3
55.755.956.156.356.557.358.3
56.356.556.356.155.955.955.755.955.455.555.356.4
58.3
56.155.9
59.3
55.555.556.355.454.754.654.4
57.9
55.3
57.2
55.956.556.356.6
58
59.5
55.7
57.457.156.256.955.8
57.858.4
57.1
58.357.857.957.858.8
56.956.857.2
58.7
57.3
59.56059.5
57.95857.7
58.9
63.9
57.757.957.7
5958.657.858.457.758.3
56.7
60.1
57.658.458.759.459.560
58.658.659.559
57.356.556.156.956.257
58.3
56.757.358.157.957.456.45756.7
60.1
5858.258.358.858.758.158.258.658.5
60.759.960.7
58.8595959.159.6
58.4
60
58.1
59.55958.959.1
57.7
58.9
61
59.260.1
63
59.158.960
71
59.559.159.358.5
6060.761.5
6059.9
61.6
60.259.260.259.2
63.2
59.660.66160.660.9
60.160.159.55959.859.3
58.159.159.659.559.6
5959.158.958.8
60.5
58.1
59.758.7
57.456.657.457.357.657.557.4
56.457.357.958.158.559.159.158.457.556.957.7
65
58.657.657.857.257.257.4
59.158.9
57.557.857.658.258.15756.9
58.158.657.657.156.557.257.256.657.356.856.757.558.158.557.757.557.558.357.957.958.1
57.357.658.158.257.857.357.757.857.75857.5
56.556.95857.457.657.457
57.5
59.760.4
58.457.758.25958.658.659.659.459.95958.758.759.458.758.158.859.359.159.859.259.859.3
61
59.358.258.558.559.5
58.358.259.15858.7
59.9
58.458.4
60.559.560.659.660
57.957.158.158.25958.958.859
6059.459.259.660.360.861.2
59.35958.559.458.759.360.360.359.758.658.4
60.3
59.158.958.659.458.358.8
60
58.5585858.3
60.761.4
58.75858.258.759.558.758.558.559.558.859.46059.259.859
60.359.860.259.359.458.657.8
59.159.258.758.658
61.7
60.2
5958.7
61
59.858.857.958.458.658.558.3
58.85959.35958.758.5
59.459.158.958.859.158.858.4
5757.9
59.958.957.85857.2
58.959.559.158.157.9
59.6
58.358.3
59.558.758.559.25959.858.859.158.759.459.459.159.960.161.261.260.561.161.861.860.761.561.661.462.1
63.762.762.762.661.861.962.162.1
63.463.3
65.165.766.2
64.463.7
61.861.762.361.860.961.160.960.360.359.960.4
59.2
57.758.3
59.959.659.159.460.259.960.960.260.560.660.860.961.161.561.2
6262.362.361.562.662.4
59.9
626262.662.462.361.561.861.661.661.8
62.862.962.462.7
6463.562.863.563.663.864.663.662.963.3
62.162.16364.1
62.963.264.364.16464.66464.6
45
50
55
60
65
70
75
80
85
90
95
12:00 AM12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/11/19 to 11/17/19 ‐Minute Intervals
H‐Mon H‐Tue H‐Wed H‐Thurs H‐Fri H‐Sat H‐Sun
Location H: 28th north of Main
45
50
55
60
65
70
75
80
dBA
Time
Barrio Logan Nighttime Noise - 11/11/19 to 11/17/19 - LOCATION H
59.7
57.4 57.3
61.3
62.9
64.6
59.0
57.8 57.4
61.4
63.162.5
60.3
62.6
60.9
62.361.6 61.9
60.6
56.2
58.8
61.4
63.163.9
59.358.2
59.4
61.562.2
62.8
61.1
58.7 58.457.9
61.5 61.8
58.658.1 57.7 58.0
58.759.8
12 AM TO 1 AM 1 AM TO 2 AM 2 AM TO 3 AM 3 AM TO 4 AM 4 AM TO 5 AM 5 AM TO 6 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/18/19 to 11/24/19 ‐ Hourly Intervals
H‐Mon 11/18 H‐Tue 11/19 H‐Wed 11/20 H‐Thurs 11/21 H‐Fri 11/22 H‐Sat 11/23 H‐Sun 11/24
Location H: 28th north of Main
57.6
5959.259.258.358.759.1
5858.958.558.3
60.1
58.958.2
59.5
61
59.658.959.158.658.5
60.460.259.659.558.75857.857.657.957.858
59.358.658.758.7
67.6
63
61.1
64.2
59.159.8
62.561.7
60.5
59.158.758.559.458.958.958.357.958.157.9
57.158.157.2
55.756.857.2
58.657.656.757.457.857.356.856.957.3575756.8
56.256.957.357.557.257.457.7
58.6
56.256.456.957.757.156.8
58.2
59.5
58.257.8
56.45756.3
57.857.35757.156.3
57.557.156.657.5
5959.4
57.657.556.656.556.756.456.7
57.858
56.857.356.556.7
59.9
56.556.656.656.1
57.858.957.857.1
58.759.7
57.958.358.3
57.156.4
57.9
56.356.756.456.156.656.357.257.158.1
56.457.258.158.357.457.457.8
60.2
56.75655.8
57.356.8
55.255.956.156.756.656.857.7
56.456.656.257.356.4
585757.9
56.757.256.556
57.557.558.157.357.157.95858.559.258.559.458.9
60.961.461.562.462.461.460.760.2
61.762.562.261.762.6
61.461.761.861.560.761.462.461.761.561.7
6161.161.962.16161.661.360.8
62.161.862.1
60.961.661.961.862
6161.161.161.86261.661.9
60.661.461.661.360.3
64.463.7
62.562.9
61.561.161.561.1
5959.2
62.4
64
62
64.2
6262.362.162.361.561.760.960.8
62.562.361.861.7
62.962.1
64
66.6
62.96262.762.4
68.9
62.86262.162.763.3
64.86463.662.962.762.262.262.1
63.362.463.363.463.863.9
62.86363.362.562.662.361.761.161.260.361.2
64.4
62.7
60.461.461.561.861.6
62.161.7
62.9
64.763.8
62.662.862.362.762.863.2
6464.965.465.36665.5
67
64.664.564.264.463.5
65.466.365.665.866.6
64.464.264.964.365.365.4
66.867.668.1
66.365.365.565.664.5
67.6
66.2
64.96464.764.5
63.362.7
58.4
55.656.457.5
61.5
58.258.4
64.463.9
6061
5958.959.159.559.960.359.759.5
60.7
59.458.958.8
60.159.559.558.958.958.759.1
58.15858.158.158.357.658.3
56.856.957.9
60.559.9
56.75757.758.158.359.4
56.956.456.556.5
58.25858.157.9
59.2
5858.358.258.357.95857.256.455.6
61.5
58.9
56.356.656.556.657.157.257.2
55.956.4
60.7
57.756.656.756.6
58.657.55857.957.3
5655.956.455.756.15655.6
58.158.6
57.358.357.5
58.859
57.3
56
57.656.8
62.663
56.9
55.6
5756.256.255.4
58.6
60.6
58
56.456.556.957.657.557.257.357.5
59.15857.956.957.256.256.85655.655.255.4
56.6
58.557.658.358
56.8
58.758.1
59.359.8
58.257.65757.557.356.7
57.957.1
58.6
61.1
58.5
57.158.2
56.157.256.95756.356.2
57.95756
54.8
56.155.655.856.2
5756.5
58.457.757.256.756.455.8
59.3
5655.95655.9
58.558.7
57.457.258.2
60.559.960.259.559.1
60.760.5
58.258.9
64.2
66.7
60
61.561.7
60.159.660.360.861.960.961.361.561.361.561.761.5
62.161.862.162.463.162.362.162.262.662.362.2
62.96261.661.962.1
6362.562.661.662.362.762.4
63.963.163.762.6
63.862.963.5
65
62.2
60.4
62.162.563
65.5
61.961.1
62.461.862.6
61.261.962.362.962.361.962.762.362.8
64.164.164.8
62.6
64
61.7
6665.9
62.662.4
67.2
62.66262.162.261.461.562.163.263.262.76362.663.1636362.8
63.864.265.2
6261.761
59.459.96059.659.759.759.9
59.1
60.4
61.661.360.860.860.7
62
64.4
62.363.264.164.263.7
66.7
636362.96261.862.863.363.563.263.463.664
62.462.763.563.563.762.662.8
64.164
61.962.863.162.461.761.961.461.962.462.662.563.1
61.762.461.662.1
58.958.6
61.8
60.559.5
61.2
58.9
60.6
63.763.1
59.759.559.158.657.557.757.1585757.757.55858.559.158.757.957.257.4
58.759.359.96059.759.5
61.361.360.4
61.660.760.860
61.4
63.2
65.5
61.2
58.259.259.960.56160.7
58.158.657.757.657.657.9
58.459.2
60.7
66.7
62
59.4
58.158.157.4
63.363
70.8
63.1
60.961.461.561.1
62.362.463.3
61.26161.961.861.661.461.3
60.8
59.660.36060.560.260.260.860
58.15857.957.8
59.1
56.757.257.758.4
59.959.659
62.2
5959.559.559.658.759.258.657.8
59.2
57.756.9
58.6
66.5
58.5
64.4
74.8
60.66161.9
6564.3
62.662.762.863.462.862.162
64.2
62.462.362.362.762.962.862.662.261.361.360.7
59.159.9
61.4
606159.9
55.354.954.955.3
57.2
55.855.4
56.856.657.557.9
67.567.3
58.7
60.3
57.657.456.656.455.955.856.5
55.2
57.4
55.455.855.256.1
57.9
55.6
65.9
71.7
56.6
59.659.558.557.958.158.859.360.359.959.959.7
60.860.46161.9
60.660.7616060.761.661.861.461.2
62.761.761.362.3
60.860.461.161.86160.960.760.160.961.2
65.3
60.460.3
62
60.761
62.663.3
61.961.7
64
61.5
63.162.2
63.764.465.264.6
62
65.4
61.460.359.4
60.7
59.159.3
60.6
59.358.759.559.759.359.1
59.759.159.360.15959.460.360.459.359.758.75959.5
60.860.860.459.6
63
64.4
6060.459.960.7
62.261.462.462.262.5
64.7
62.162.762.4
64.765.2
6362.263.1
61.261.862.3
66.9
65.6
62.161.560.9
59.359.660.6
58.559.158.3
59.659.1
57.3
59.359.15959.660.460.360.760.260.9
62.261.662.361.262.362.261.862.1
63.1
61.862.162.462.36263.162.4
64
62.462.362.2
64.764.5
62.762.963.162.662.462.7
6261.560.961.661.260.1
63.9
61.5
63.664.1
62.562.963.2
64.9
61.862.2
72.1
65.3
62.4
60.360.760.459.560.5
62.861.7
60.2
61.6
63.3
59.8
58.358.7
61.9
59
60.5
67.5
62.6
58.8
60.1
61.5
59.559.6
63
58.858.1
56.155.255.2
56.7
59
56.656.2
58.5
54.754.855.755.155.855.4
57.3
54.554.854.955.354.95655.8
54.454.7
55.955.55555.355.4
58.9
57.4
5655.555.45656.3
57.6
61.360.3
55.9
57.4
55.354.855.355.356.156.9
59
56.9
54.854.254.554.4
56.256.456.255.554.6
55.855.6
54.254.955.154.955.955.154.755.554.454.354.555.355.155.355.7
57.7
55.3
585755.9
59.9
55.155.354.855.155.955.55555.456.457.4
55.356.455.355.555.255.856.155.2
56.5
54.9
56.155.655.255.1
56.7
54.455.454.354.955.555.4
57
55.455.256.15756
57.7
59.6
56.355.855.555.3
56.95656.255.956.6
55.355.455.9
57.558.3
57.157.456.456.957.1
65.164.563.9
58.2
60.5
55.9
58.1
61.5
68.3
66.5
58.1
56.95857.6
55.1
56.5
5857.658.359.360.3
61.8
58.758.7
6060.459.660.761.260.4
61.962.261.360.760.361.161.261.160.961.160.9
62.3
61.161.260.960.560.961.561.561.561.161.2
62.362.662.862.662.663.363.463.163.262.863.163.363.2
63.7
62.462.36362.362.462
63.463.5
62.161.4
63.463.16363.163.2
61.961.1
59.760.2
59
60.2
62.562.962.262.162.362.762.462.162.362.362.4
63.263.162.96262.7
61.361.962.162.962.463.563.363.262.66363.9
62.762.763.1
64.464.86463.5
66
68.6
64.3
66.7
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61.760.960.7
62.3
60.661.762.362.7
64.7
62.162.261.661.961.262.362.863.364.263.864.263.5
64.7
63.364.363.963.162.762.762.7
64.964.663.663.162.763.463.463.263.463.362.9
63.562.763.663.663.763.8
64.563.8
65.2
70.5
67.6
65.9
64.7
63.5
64.865.165.665.3
63.8
62.462.4
63.963.6
59.758.859.659.259.6
63.5
59.9
61.362.2
60.860.9
62.2
59.7
62.161.8
59.659.259.359.15958.3
57.1
58.559.15858.858.459.4
60.860.5
5959.259.9
58.257.356.956.4
58.257.95757.957.657.857.657.9
56.956.755.6
56.857.958.457.757.5
58.858.6
57.157.857.657.957.457.257.957.556.956.5
57.8
56.1
62.8
56.7
58.659.6
57.3
55.956.35655.555.756.4
57.756.7
58.3
59.7
57.757.858.357.95858.959.8
56.7
59.759.9
58.257.157.656.9
60.3
58.3
59.858.9
62.3
58.358.960
57.257.458.457.956.8
59.3
57.857.258.358.357.356.75757.156.3
57.657.957.158.258.458.3
60.360
65.7
6362.661.960.960
58.257.556.456.656.956.9
60.9
59.5
57.457.5
5958.758.759.158.758.358.758.4
56.2
58.3
56.957.5
55.756
58.1
60.2
66.2
61.5
585757.457.656.957.257.557.4
59.4
57.4
60.459.659.659.559.859.8
59.159.259.358.859.359.75959.160.2
65
59.460.560.961.261.3
62.16261.861.562.262.362.361.461.261.8
60.6
62.162.762.4
61.261.3
62.661.862.363.263.262.362.5626260.960.761.361.161.362.261.861.361.561.260.360.1
62.462.162.4
60.760.259.9
6261.3
59.660.561.160.861.261.1
61.962.3
60.360.259.960.360.6
62.362.461.461.361.762.1
65.3
62.861.961.762.262.462.362.161.861.7
63.262.862.162.262.362.562.261.9
63.262.36262.763.262.962.162.162.462.462.262.462.2
63.963.663.663.262.663.162.262.262.363.1
60.7
58.958.8
57.157.7
59.3
61.5
64.7
59.56059.258.659.159.960.459.660.761.762.8
60.861.9
66.8
63.6
62.263.362.463.463.162.9
64.1
62.862.46262.763.2
65.164.965.6
63.263.5
61.462.262.263.363.262.3
63.8
62.6
61.461.861.661.561.961.2
65.664.665.164.363.4
66.6
62.4
66.2
61.360.459.859.660.361.160.760.861.8
60.661.2
63.7
61.661.96362
59.459.559.960.9
58.858.2
62.3
58.558.458.259.258.758.258.5
57.357.9
59.559.858.95959.5
57.758.457.858.959.25959.3
59.659.959.560
58.258.559.558.859.159.158.7
6059.8
58.6
73.2
59.5
58.3
60.6
59
56.9
58.658.158
59.559.759.258.6
59.8
61.4
59.159.2
57.9
59.8
58.659.559.359.7
57.2
58.758.7
57.5
59.358.557.958.558.7
57.557.85858.157.957.75857.257.65857.557.957.7
59.2
57.758.658.358.958.259.158.458.458.5
57.258.358.257.958.3
60.8
59.459.758.658.459.259.5
57.9
60.3
62.7
61.5
58.658.55858.558.958.759.1
5857.357.957.758.758.158.759.158.458.3
56.957.4
58.858.258.358.558.658.958.5
57.758.357.858.458.6
59.9
58.45857.357.156.956.957.257.6
56.85757.757.557.357.557.6
58.157.757.858.258.859.258.158.9
56.7
58.1
63.2
57.156.857.657.257.156.257.357.95757.457.257.6
58.857.958.157.957.457.957.556.656.55656.657.556.857.257.457.2
56.4
57.857.7
56.356.857.25756.8
59.258.958.859.158.258.157.157.958.258.858.358.257.758.158.557.7
59.359.158.858.958.858.559.260.259.1
57.758.358.758.5
5959.359.159.359.659.959.7
61.3
60.159.960.360.360.76061.1
64.4
61.161.562.2
65.9
68.5
64.7
62.661.561.5
60.360.4
62.161.561.161.660.961.461.861.862.361.261.662.362.76261.561.260.560.9
62.7
61.5
63.16262.361.36161.261.561.862.462.762.261.962.7
61.56160.561.4
62.662.16262.562.162.561.861.661.561.961.861.961.561.6
61.1
63.2
60.761.761.76161.56161.161.661.662.262.162.562.262.562.162.2
61.561.562.362.162.76261.861.962.362.161.861.5
60.259.259.1
57.957.457.858.557.658.158.857.958.258.358.1
58.658.858.558.358.95858.45958.858.959.358.458.459.159.359.458.858.2
60
58.358.658.758.558.558.559.359.159.158.9
59.458.657.958.757.656.95857.458.257.257.958.258.458.2
57.4
59.5
61.2
59.1
61.3
59.959.8
65.4
59.859
60.2
61.5
57.858.25858.458.558.158.157.357.658.3
57.157.758.158.4
59.9
58.357.658.3
57.1
58.658.158.158.157.357.157.8
55.956.757.556.657.157.756.957.656.656.757.55757.256.756.856.356.156.756.956.1
57.5
55.455.556.355.856.55756.656.9
55.756.456.355.5
57.358.457.95758.157.958.358.3
64.4
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59.258.458.2
61
56.756.456.355.956.1565656.556
58.1
56.156.255.556.657.7
58.9
57.156.956.857.557.657.757.957.557.957.8
59.758.6
57
58.357.857.557.256.65757.958.2
56.95857.757.656.857.4
68.2
57.857.257.457.75857.357.7
59.158.457.658.258.458.458.8
59.358.358.2
61.3
59.4
57.457.557.156.256.3
5857.256.356.2
54.655.355.1
58
56.455.855.255.556.456.355.3
56.555.455.155.155.8
54.655.4
5757.6
55.9
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57.8
55.856.156.457.557.157.2
58.857.857.55757.9
5656.5
57.8
56.556.356.456.956.857.657.257.958.559.459.1
57.3
6060.8
57.256.9
64.7
6161.461.2
57.558.358.959.760.860.260.8
58.858.859.258.85959.1
61.6
58.258.858.658.358.2
59.258.158.758.5
56.357.3
56.1
57.357.456.557.257.456.5
63.4
57.957.9
59.7
57.858.4
59.7
57.657.858.358.4
60.5
59.3
61.4
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60.4
58.958.558.558.858.158.158.759.660.159.160.260.861.761.360.260.160.159.360.360.160.359.8
61.261.462
60.159.959.459.760.159.9
60.96160.8
6464.6
45
50
55
60
65
70
75
80
85
90
95
12:00 AM12:15 AM 12:30 AM 12:45 AM 1:00 AM 1:15 AM 1:30 AM 1:45 AM 2:00 AM 2:15 AM 2:30 AM 2:45 AM 3:00 AM 3:15 AM 3:30 AM 3:45 AM 4:00 AM 4:15 AM 4:30 AM 4:45 AM 5:00 AM 5:15 AM 5:30 AM 5:45 AM 6:00 AM
dBA
Time
Barrio Logan Nighttime Noise ‐ 11/18/19 to 11/24/19 ‐Minute Intervals
H‐Mon H‐Tue H‐Wed H‐Thurs H‐Fri H‐Sat H‐Sun
Location H: 28th north of Main
45
50
55
60
65
70
75
80
dBA
Time
Barrio Logan Nighttime Noise - 11/18/19 to 11/24/19 - LOCATION H
Appendix 4. City of San Diego Noise Ordinance
APPENDICES
Ch. Art. Div.5 9.5 4 1
San Diego Municipal Code Chapter 5: Public Safety, Morals and Welfare (12-2019)
Article 9.5: Noise Abatement and Control
Division 4: Limits(“Noise Level Limits, Standards and Control”
added 9–18–1973 by O–11122 N.S.)(Retitled to “Limits” on 9–22–1976 by O–11916 N.S.)
§59.5.0401 Sound Level Limits
(a) It shall be unlawful for any person to cause noise by any means to the extent that the one–hour average sound level exceeds the applicable limit given in the following table, at any location in the City of San Diego on or beyond the boundaries of the property on which the noise is produced. The noise subject to these limits is that part of the total noise at the specified location that is due solely to the action of said person.
TABLE OF APPLICABLE LIMITS
Land Use Time of Day One-Hour Average Sound Level
(decibels) 1. Single Family Residential 7 a.m. to 7 p.m.
7 p.m. to 10 p.m.10 p.m. to 7 a.m.
504540
2. Multi-Family Residential (Up to a maximum density of 1/2000)
7 a.m. to 7 p.m.7 p.m. to 10 p.m.10 p.m. to 7 a.m.
555045
3. All other Residential 7 a.m. to 7 p.m.7 p.m. to 10 p.m.10 p.m. to 7 a.m.
605550
4. Commercial 7 a.m. to 7 p.m.7 p.m. to 10 p.m.10 p.m. to 7 a.m.
656060
5. Industrial or Agricultural any time 75
(b) The sound level limit at a location on a boundary between two zoning districts is the arithmetic mean of the respective limits for the two districts. Permissible construction noise level limits shall be governed by Sections 59.5.0404 of this article.
Ch. Art. Div.5 9.5 4 2
San Diego Municipal Code Chapter 5: Public Safety, Morals and Welfare (12-2019)
(c) Fixed–location public utility distribution or transmission facilities located on or adjacent to a property line shall be subject to the noise level limits of Part A. of this section, measured at or beyond six feet from the boundary of the easement upon which the equipment is located.
(d) This section does not apply to firework displays authorized by permit from the Fire Department.
(e) This section does not apply to noise generated by helicopters at heliports or helistops authorized by a conditional use permit, nor to any roller coaster operated on City–owned parkland.
(Amended 9–11–1989 by O–17337 N.S.)(Amended 11-28-2005 by O-19446 N.S.; effective 2-9-2006.)
§59.5.0402 Motor Vehicles
(a) Off–Highway
(1) Except as otherwise provided for in this article, it shall be unlawful to operate any motor vehicle of any type on any site, other than on a public street or highway as defined in the California Vehicle Code, in any manner so as to cause noise in excess of those noise levels permitted for on– highway motor vehicles as specified in the table for “45 mile– per–hour or less speed limits” contained in Section 23130 of the California Vehicle Code, and as corrected for distances set forth in subsection A.2. below.
(2) Corrections
The maximum noise level as the off–highway vehicle passes may be measured at a distance of other than fifty (50) feet from the center line of travel, provided the measurement is further adjusted by adding algebraically the applicable correction as follows:
Ch. Art. Div.5 9.5 4 3
San Diego Municipal Code Chapter 5: Public Safety, Morals and Welfare (12-2019)
Distance (Feet) Correction (decibels)
25 -6
28 -5
32 -4
35 -3
40 -2
45 -1
50(preferred distance)
0
56 +1
63 +2
70 +3
80 +4
90 +5
100 +6
(3) A measured noise level thus corrected shall be deemed in violation of this section if it exceeds the applicable noise–level limit as specified above.
(b) Nothing in this section shall apply to authorized emergency vehicles when being used in emergency situations, including the blowing of sirens and/or horns.
(“Motor Vehicles” renumbered from Sec. 59.5.0403 on 9–22–1976 by O–11916 N.S.)
§59.5.0403 Watercraft
Violations for excessive noise of watercraft operating in waters under the jurisdiction of The City of San Diego shall be prosecuted under applicable provisions of the California Harbors and Navigation Code. Permits issued by The City of San Diego for the operation of watercraft not in compliance with noise criteria of the Harbors and Navigation Code shall be reviewed and approved by the Administrator prior to issuance.(“Watercraft” renumbered from Sec. 59.5.0407 and amended 9–22–1976 by O-11916 N.S.)
Ch. Art. Div.5 9.5 4 4
San Diego Municipal Code Chapter 5: Public Safety, Morals and Welfare (12-2019)
§59.5.0404 Construction Noise
(a) It shall be unlawful for any person, between the hours of 7:00 p.m. of any day and 7:00 a.m. of the following day, or on legal holidays as specified in Section 21.0104 of the San Diego Municipal Code, with exception of Columbus Day and Washington’s Birthday, or on Sundays, to erect, construct, demolish, excavate for, alter or repair any building or structure in such a manner as to create disturbing, excessive or offensive noise unless a permit has been applied for and granted beforehand by the Noise Abatement and Control Administrator. In granting such permit, the Administrator shall consider whether the construction noise in the vicinity of the proposed work site would be less objectionable at night than during the daytime because of different population densities or different neighboring activities; whether obstruction and interference with traffic particularly on streets of major importance, would be less objectionable at night than during the daytime; whether the type of work to be performed emits noises at such a low level as to not cause significant disturbances in the vicinity of the work site; the character and nature of the neighborhood of the proposed work site; whether great economic hardship would occur if the work were spread over a longer time; whether proposed night work is in the general public interest; and he shall prescribe such conditions, working times, types of construction equipment to be used, and permissible noise levels as he deems to be required in the public interest.
(b) Except as provided in subsection C. hereof, it shall be unlawful for any person, including The City of San Diego, to conduct any construction activity so as to cause, at or beyond the property lines of any property zoned residential, an average sound level greater than 75 decibels during the 12–hour period from 7:00 a.m. to 7:00 p.m.
(c) The provisions of subsection B. of this section shall not apply to construction equipment used in connection with emergency work, provided the Administrator is notified within 48 hours after commencement of work.
(Amended 1–3–1984 by O–16100 N.S.)(Amended 8-9-2019 by O-21114 N.S.; effective 9-8-2019.)
Ch. Art. Div.5 9.5 4 5
San Diego Municipal Code Chapter 5: Public Safety, Morals and Welfare (12-2019)
§59.5.0406 Refuse Vehicles and Parking Lot Sweepers
No person shall operate or permit to be operated a refuse compacting, processing, or collection vehicle between the hours of 7:00 p.m. to 6:00 a.m. or a parking lot sweeper between the hours of 7:00 p.m. to 7:00 a.m. in any residential area unless a permit has been applied for and granted by the Administrator.(“Refuse Vehicles” added 9–18–1973 by O–11122 N.S.; amended 9–22–1976 byO–11916 N.S.)(Amended 6-9-2010 by O-19960 N.S.; effective 7-9-2010.)
Appendix 5. City of San Diego Resolution
R-2019-249 (Establish Five-ton Commercial Vehicle
Prohibitions in Barrio Logan)
APPENDICES
(R-2019-249) COR. COPY
-PAGE 1 OF 3-
RESOLUTION NUMBER R-_________________
DATE OF FINAL PASSAGE _________________
A RESOLUTION OF THE COUNCIL OF THE CITY OF SAN DIEGO TO ESTABLISH FIVE-TON COMMERCIAL VEHICLE PROHIBITIONS ON VARIOUS STREETS IN THE COMMUNITY OF BARRIO LOGAN.
WHEREAS, San Diego Municipal Code section 85.04 authorizes the City Council to
prohibit commercial vehicles on designated streets by resolution; and
WHEREAS, residents and the Environmental Health Coalition have petitioned the City to
prohibit commercial vehicles with a rated capacity of five-tons or more from certain streets in the
Barrio Logan community; and
WHEREAS, the Environmental Health Coalition presented the proposal to the
Environment Committee on April 12, 2018. By unanimous vote, the Environment Committee
requested that the City examine the proposal and return to the Environment Committee with the
appropriate draft resolution or ordinance for consideration to implement the proposal; and
WHEREAS, City staff conducted analysis of traffic flow in the area and determined the
proposal to prohibit commercial vehicles to be warranted in certain areas of Barrio Logan. In
addition, the Port District, Caltrans, National City, and the Barrio Logan Planning Group support
this proposal; and
WHEREAS, this proposal is being docketed for the City Council’s consideration without
returning to the Environment Committee as requested, which requires a suspension of Rule 6.9
of the Rules of Council regarding Committee hearings on resolutions and ordinances, by a two-
thirds vote of the City Council pursuant to Rule 2.12; NOW, THEREFORE,
(R-2019-249) COR. COPY
-PAGE 2 OF 3-
BE IT RESOLVED, by the Council of the City of San Diego, that Rule 6.9 is hereby
suspended so that the City Council can consider this proposal without further consideration by
the Environment Committee.
BE IT FURTHER RESOLVED, that a prohibition on five-ton commercial vehicles is
established on the following streets:
• Main Street between 28th Street and 32nd Street,
• 29th Street between Boston Avenue and Main Street,
• 30th Street between Boston Avenue and Main Street,
• 31st Street between Boston Avenue and Main Street,
• Sigsbee Street between Logan Avenue and Harbor Drive,
• Beardsley Street between Main Street and Harbor Drive, and
• Boston Avenue between 28th Street and 32nd Street, with an exemption for
commercial vehicles over five-tons but with a height over 13 feet 6 inches.
BE IT FURTHER RESOLVED, that the Chief Financial Officer is authorized to expend
funds not to exceed $1,319 from 100000 General Fund, Transportation & Storm Water
Department – Street Division’s (211611) operating budget, for the installation of the necessary
signs to establish the five-ton commercial vehicle prohibitions on the designated streets.
APPROVED: MARA W. ELLIOTT, City Attorney
By Ryan P. Gerrity
Deputy City Attorney
TCZ:RPG:jls 11/15/2018 12/3/18 COR. COPY Or.Dept:Transportation & Storm Water C.C. No.: 3000011653
(R-2019-249) COR. COPY
-PAGE 3 OF 3-
Doc. No.: 1878756
I certify that the foregoing Resolution was passed by the Council of the City of San Diego, at this meeting of .
ELIZABETH S. MALAND City Clerk
By _______________________________ Deputy City Clerk
Approved: _________________________ _________________________________ (date) KEVIN L. FAULCONER, Mayor
Vetoed: _________________________ _________________________________ (date) KEVIN L. FAULCONER, Mayor
THIS PAGE INTENTIONALLY LEFT BLANK for double-sided printing
Appendix 6. Port Environmental Advisory
Committee Policy (BPC Policy No. 730)
APPENDICES
San Diego Unified Port District
I Document No. 68300~ (0) Filed ~ IOffice of the District Clerk
BPC Policy No. 730
SUBJECT: PORT ENVIRONMENTAL ADVISORY COMMITTEE POLICY
PURPOSE: To review and provide input and recommendations on Port environmentalprograms and initiatives, and comment on funding projects aimed atimproving the condition of the Bay and surrounding Port tidelands.
POLICY STATEMENT:
The Board of Port Commissioners (Board) is committed to protecting and improving theenvironmental conditions of San Diego Bay and Port tidelands (Bay). To that end, thePlanning & Green Port program’s (PGP) and Environmental Advisory Committee (EAC)were created and invested with the responsibility of ensuring the Port’s compliance withenvironmental laws and regulations, as well as advising the Board on actions that canbe taken to improve the condition of the Bay.
San Diego Bay is often referred to as the “Crown Jewel” of San Diego. Beneath itsbeautiful surface, the Bay serves a number of important ecological roles, serving as aspawning ground for many local fish species, acting as a key stopping point for a varietyof bird species traveling along the Pacific Fly Way, and providing the discharge point fornumerous creeks and rivers within the San Diego Bay watershed.
The Bay also has played an essential role in supporting the growth of the region’spopulation and economy. In the past, fulfilling this role often has resulted in negativeimpacts on the Bay. For years, raw sewage and industrial wastes were discharged,untreated, into the waters of the Bay. Modern environmental laws, coupled with thecorporate commitments of Port industry, have significantly reduced industrial sources ofBay pollution. Unfortunately, discharges continue in the form of urban runoff throughoutSan Diego Bay’s extensive watershed.
The development of the Bay with hotels, roads and businesses has significantly alteredthe natural condition of the Bay. During the last 100 years, natural shoreline has beenremoved and replaced with artificial hard structures, a type of substrate not native to theBay and of limited value to native wildlife. As a result, there has been a 70% loss of saltmarsh, 84% loss of intertidal areas other than salt marsh, and a 42% loss of shallowsubtidal zone habitats.
Improving the condition of the Bay cannot be accomplished solely through regulatorycompliance. The restoration of the Bay to a more pristine condition requires efforts that
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BPC Policy No. 730
are beyond mere regulatory compliance. This will require the concerted, coordinatedefforts of all the stakeholders of the Bay - academia, environmental groups,government, Port tenants, and regulatory and resource agencies. The Board hascreated the EAC to function as a forum to provide the Board with input andrecommendations for accomplishing the Port’s strategic goal to “protect and improve theenvironmental conditions of San Diego Bay and the Tidelands.”
This EAC Policy details the organization, structure and functioning of the Committeeand management of the Environmental Fund.
ANALYSIS:
1. The Bay is the “Crown Jewel” of the San Diego region and a focal point inmedia descriptions of the San Diego region.
2. The Bay is an ecosystem which plays an important role in the broader, regionalecosystem, as illustrated by the U.S. Fish and Wildlife Service’s designation ofsouth San Diego Bay as a National Wildlife refuge. The Bay is home to 89species of fish, seven endangered species and thousands of birds visiting SanDiego during their annual migration along the Pacific Fly Way.
3. The Bay is an important economic resource for the region, supporting the U.S.Navy’s Pacific Fleet, two marine terminals, three shipyards, other maritimeindustries, and 8,000 recreational boat slips, as well as a wide range of hotels,restaurants and convention facilities to support the tourism industry.
4. The Bay is the discharge point of urban runoff from throughout the San DiegoBay watershed, an area of 415 square miles and where 50% of the county’spopulation lives or works.
5. The ecological and economic roles or “uses” of the Bay have not always beencompatible. As a result, the Bay’s sediments, home to organisms at the base ofthe food chain, contain “legacy” pollutants and historic habitat along theshoreline has been replaced by artificial concrete structures, including seawalls,which are inefficient as habitat.
6. The Port of San Diego has accepted the role of “environmental champion” ofthe Bay, responsible for the protection and enhancement of 2,508 acres oftideland and 2,860 acres of water in the Bay.
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7. The PGP and EAC were created to ensure that the Port is in compliance withenvironmental laws and regulations. PGP programs include but are not limitedto: Green Port; Energy; Environmental Conservation; Environmental Protection,Planning, Aquaculture, Blue Technology; and Natural Resources. The PGPstaffs the Committee and manages the Environmental Fund, awarding grants toenvironmental programs and projects.
8. The Port’s environmental efforts are a regional investment, benefiting the entirecounty by supporting assets such as hotels and shipyards, which provide jobsand support businesses throughout the region. The Port also incurs significantcosts associated with the impacts of pollution from the region entering the Bayvia urban runoff.
9. The Bay is one of this region’s most precious resources, and is an importantfish nursery and a key stop over on the Pacific Flyway, for thousands ofmigratory birds. Protecting the bay and its resources is important throughoutdifferent stages of wildlife development. By protecting and enhancing thesehabitats, we are ensuring the long term sustainability of the bay’s resourcesand doing so in a manner that creates resiliency to future impacts such asupstream pollution or sea level changes.
10. The Port adopted a Climate Action Plan (CAP) in 2013 to reduce greenhousegas (GHG) emissions on Port tidelands. To achieve the goals, the CAPcontains a palette of potential GHG reduction measures focusing on five keytarget areas: Transportation and Land Use, Energy Conservation andEfficiency, Alternative Energy Generation, Waste Reduction and Recycling, andWater Conservation and Recycling.
ENVIRONMENTAL ADVISORY COMMITTEE:
The EAC operates according to the guidelines for all Board advisory committees, asestablished in BPC Policy No. 018 (2008-273, 2 December 2008) and articulated in theCharter prepared specifically for the EAC. The purpose of this, and all other Port advisorycommittees, is to advise the Board. The EAC is advisory in nature and has no authority tonegotiate for, represent, or commit the Port in any respect.
The membership of all committees is the prerogative of the Chair of the Board. In Januaryof each calendar year, the incoming Chair establishes the slate of committees for that yearand appoints the members of each. The EAC shall be composed of two (2) or three (3)
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members of the Board and representatives of stakeholder groups including, but not limitedto: Port tenants; environmental advocacy groups; the U.S. Navy; regulatory agencies;resource agencies; member cities; academia; local business; and labor. EAC membershipshall not exceed eighteen members (stakeholders and two or three commissioners). Thisdiverse membership will allow the EAC to achieve the Board’s goal of receiving input froma broad and balanced cross section of the community. EAC meetings are intended toencourage input from stakeholders and interaction with Port staff and Board members.
TERMS:
EAC membership is the prerogative of the Chair of the Board. It is the intent of the Board tocontrol the terms of an individual’s or organization’s participation in order to: (1) provide anopportunity for as many qualified and willing individuals as possible to serve theircommunity; (2) promote equal opportunity for membership; (3) most precisely matchmembership’s expertise to the program’s needs.
Should an EAC vacancy occur prior to the end of a member’s term, the Chair may chooseto appoint a replacement for the unexpired portion of that term and notify the Board of suchaction. There will be no alternate EAC members. EAC members shall receive nocompensation for their services.
CONFLICTS OF INTEREST:
To the extent required by law, the EAC will operate in compliance with the Political ReformAct and Government Code section 1090 regarding conflicts of interest. EAC members withfinancial interests in projects coming before the EAC will be required to disclose the interestand abstain from any participation as to the matter. Members and their organizationsseeking funding from the EAC will not be able to participate in the matter and may besubject to disqualifying requirements of Government Code section 1090.
Although Port District staff cannot provide legal advice to EAC members regardingpotential conflicts of interest, staff will be available to provide members with information toassist members in making appropriate determinations.
FUNDING MECHANISMS:
Environmental regulatory programs are focused largely on preventing contamination ofthe air, water and land or on maintaining habitat for birds, fish and wildlife. Efforts torestore areas to historic conditions are more problematic, whether it is by the
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remediation of areas with legacy contamination or the recovery of lost wetlands.Although regulatory programs exist to effect these changes, in almost all cases theirimplementation is exceedingly slow and drawn out, often by technical and legalchallenges and, thus, the success of such programs often is less than optimal.
The Board has developed a program to assist in funding environmental projects.
1. ENVIRONMENTAL FUND
Purpose: The purpose of the Environmental Fund (Fund) is to fund projects thataddress air, water and sediment quality, sustainability and climate actionplanning, natural resources and endangered species management, habitatcreation, restoration or protection, reclaiming natural shoreline conditions,environmental education, research and monitoring, and/or other issues in theBay and/or the tidelands.
Project Selection: Projects will be identified and reviewed by staff of PGP. Inevaluating a project, staff will determine if it meets the objectives identified by theEAC.
In selecting projects, staff will address questions such as, but not limited to:
• Will the project create new habitat for fish or birds?• Will the project restore historic habitat that has been lost through
development or other means?• Will the project remediate, or hasten the move towards remediation,
of a contaminated area of the Bay?• Will the project enhance the public’s enjoyment of the Bay without
impacting the environment?• Will the project improve air quality in the region?• Will the project reduce energy, waste and/or water use?• Will the project improve environmental decision-making?• Will the project prevent contamination of the Bay?• Will the project resolve a regulatory impasse which has prevented,
or significantly slowed, the restoration of the Bay?• Is the project located within the Bay, or is it of direct benefit to the
Bay and the surrounding region?
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Project Approval: In order for a project to receive funding, whether partial,in-kind, or complete, the project must be approved by the Board. Neither staff northe EAC has the authority to act on behalf of the Board. The Board is the ultimateand final decision maker on all matters related to the expenditure of funds.
Funding: Each year, the Board shall set aside 1,4 of 1% of the Port District’sprojected gross revenues for that year. For the purpose of this calculation, grossrevenue shall not include anticipated grants from any source or any otherrestricted revenue source. Such money set aside shall be expended for specificenvironmental projects or allocated to a fund set aside within the Port DistrictRevenue Fund for environmental projects within the Port District.
The Port Act allows the maintenance of a single, general fund (Port Act, Section10) and does not allow the creation and maintenance of multiple funds. TheBoard can choose to set aside money for an Environmental Fund within the PortDistrict Revenue Fund. Money so set aside may be accumulated for more thanone year, but its use, from year-to-year, will be subject to the discretion of theBoard.
Staff will recommend projects to the EAC, which will provide comments. Staff willthen make a recommendation to the Board to approve funding for projects.
1. Seek funding from sources other than the Fund, and/or2. Seek matching funds from other sources.
RESOLUTION NUMBER AND DATE: 2018-063, dated April 10, 2018 (Supersedes BPC Policy730, Resolution 2013-27, dated February 12, 2013; Resolution 2010-96, dated June 8, 2010;Resolution 2010-34, dated March 2, 2010; Resolution 2007-138, dated 10 July 2007: andResolution 2006-111, dated 6 June 2006)
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RESOLUTION 2018-063
RESOLUTION AUTHORIZING CHANGES TOBOARD OF PORT COMMISSIONERS POLICYNO. 730, THE PORT ENVIRONMENTAL ADVISORYCOMMITTEE POLICY, TO REFLECT CURRENTENVIRONMENTAL PROGRAMS, TO INCLUDEOTHER NON-SUBSTANTIVE ADMINISTRATIVEUPDATES, AND TO RESCIND THE TENANTENVIRONMENTAL COMPLIANCE LOAN PROGRAMFOR WHICH NO APPLICATIONS HAVE BEENRECEIVED SINCE BOARD ADOPTION OF THEPROGRAM IN 2001
WHEREAS, the San Diego Unified Port District (District) is a publiccorporation created by the legislature in 1962 pursuant to Harbors and NavigationCode Appendix 1, (Port Act); and
WHEREAS, on June 6, 2006, pursuant to resolution #2006-111, the Boardof Port Commissioners (BPC) adopted Policy No. 730, the current PortEnvironmental Advisory Committee (EAC) Policy; and
WHEREAS, BPC Policy No. 730 outlines the organization, structure andfunctions of the EAC; management of the Environmental Fund; and the TenantEnvironmental Compliance Loan Program; and
WHEREAS, BPC Policy No. 730 also details the Tenant EnvironmentalCompliance Loan Program (Loan Program), which was adopted by the BPC onApril 4, 2001, by resolution #2001-66, to provide low interest loans to tenants tosupport environmental remediation or environmental enhancement projects; and
WHEREAS, District staff propose updates to BPC Policy No. 730 to makeit consistent with current District Planning & Green Port programs emphasizingthe importance of the San Diego Bay for natural resources and the adoption of theClimate Action Plan; and
WHEREAS, District staff also recommends rescinding the tenant loanprogram, since no applications have been received since its inception in 2001;and
WHEREAS, on April 5, 2018 the EAC reviewed the proposed updates toBPC Policy No. 730 and concurred that these changes are appropriate; and
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2018-063
WHEREAS, a redline strikeout version of District staff’s proposed revisionsto BPC Policy No. 730 are included as Affachment A to the corresponding agendasheet.
NOW, THEREFORE, BE IT RESOLVED that the Board of PortCommissioners of the San Diego Unified Port District hereby approves thechanges to BPC Policy No. 730 as set forth in Attachment A to the correspondingagenda sheet.
APPROVED AS TO FORM AND LEGALITY:GENERP~L~OUNSEL
By~’~
PASSED AND ADOPTED by the Board äf Port Commissioners of theSan Diego Unified Port District, this 10th day of April, 2018, by the following vote:
AYES: Bonelli, Castellanos, Malcolm, Merrifield, Moore, Valderrama, and ZucchetNAYS: None.EXCUSED: None.ABSENT: None.ABSTAIN: None.
Rafael Castellanos, ChairmanBoard of Port Commissioners
ATTEST:
Donna MoralesDistrict Clerk
(Seal)
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San Diego Unified Port District 3165 Pacific Hwy.San Diego, CA 92101
File #:2018-0089
DATE: April 10, 2018
SUBJECT:
RESOLUTION AUTHORIZING CHANGES TO BOARD OF PORT COMMISSIONERS POLICY NO.730, THE PORT ENVIRONMENTAL ADVISORY COMMITTEE POLICY, TO REFLECT CURRENTENVIRONMENTAL PROGRAMS, TO INCLUDE OTHER NON-SUBSTANTIVE ADMINISTRATIVEUPDATES, AND TO RESCIND THE TENANT ENVIRONMENTAL COMPLIANCE LOANPROGRAM FOR WHICH NO APPLICATIONS HAVE BEEN RECEIVED SINCE BOARDADOPTION OF THE PROGRAM IN 2001
EXECUTIVE SUMMARY:
The Board of Port Commissioners (Board) is committed to protecting and improving theenvironmental conditions of San Diego Bay and Port tidelands (Bay). To that end, Planning & GreenPort programs (PGP) were created to ensure the San Diego Unified Port District (District) is incompliance with environmental regulations, and the Environmental Advisory Committee (EAC) wascreated to advise the Board with respect to the protection and improvement of the condition of theBay.
On June 6, 2006, per resolution #2006-111, the Board adopted Policy No. 730, the PortEnvironmental Advisory Committee Policy. The policy outlines the organization, structure andfunctions of the EAC; management of the Environmental Fund; and the Tenant EnvironmentalCompliance Loan Program. The policy details the membership of the EAC; the purpose of theEnvironmental Fund - to fund projects that address air, water and sediment quality, sustainability andclimate action planning, natural resources and endangered species management, habitat creation,restoration or protection, reclaiming natural shoreline conditions, environmental education, researchand monitoring, and/or other issues in the Bay and/or the tidelands. The policy also details the TenantEnvironmental Compliance Loan Program (Loan Program), which was adopted by the Board on April4, 2001, by resolution #2001-66, to provided low interest loans to tenants to support environmentalremediation or environmental enhancement projects. No loan applications have been received for theLoan Program since its inception in 2001.
Changes to Policy #730 include updating the language to reflect current District Planning & GreenPort programs including the importance of the Bay for natural resources and the adoption of theClimate Action Plan. Changes also include rescinding the tenant loan program, since no applicationshave been received since its inception in 2001.
On April 5, 2018 the EAC reviewed the proposed revisions to BPC Policy No. 730 and recommendedapproval of these changes to the Board. A redline strikeout version of the proposed revisions to BPC
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Policy No. 730 are included as Attachment A.
Staff recommends that the Board adopt a resolution to amend BPC Policy No. 730 as set forth inAttachment A.
RECOMMENDATION:
Adopt a resolution authorizing changes to BPC Policy No. 730, the Port Environmental AdvisoryCommittee Policy, to reflect current environmental programs, to include other non-substantiveadministrative updates, and to rescind the Tenant Environmental Compliance Loan Program forwhich no applications have been received since Board adoption of the Loan Program in 2001.
FISCAL IMPACT:
The proposed Board action does not present any fiscal impact to the District.
COMPASS STRATEGIC GOALS:
This agenda item supports the following Strategic Goal(s).
A Port that the public understands and trusts. A Port with a healthy and sustainable bay and its environment. A Port with a comprehensive vision for Port land and water uses integrated to regional plans. A Port that is a safe place to visit, work and play.
DISCUSSION:
BackgroundOn June 6, 2006, per resolution 2006-111, the Board adopted Policy 730, the Port EnvironmentalAdvisory Committee policy, which created the EAC and the Environmental Fund. Since the Board iscommitted to protecting and improving the environmental conditions of Bay they created the EAC andPGP programs. The PGP programs were created and invested with the responsibility of ensuring theDistrict’s compliance with environmental laws and regulations, and the EAC was created to advisethe Board on actions that can be taken to improve the condition of the Bay.
San Diego Bay is often referred to as the “Crown Jewel” of San Diego. Beneath its beautiful surface,the Bay performs a number of important ecological roles, serving as a spawning ground for manylocal fish species, acting as a key stopping point for a variety of bird species traveling along thePacific Fly Way, and providing the discharge point for numerous creeks and rivers within the SanDiego Bay watershed.
The restoration of the Bay to a more pristine condition may require efforts that extend beyond mereregulatory compliance. The Board created the EAC to advise and to provide the Board with input andrecommendations for accomplishing the District’s strategic goal to “protect and improve theenvironmental conditions of San Diego Bay and the Tidelands.”
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Proposed changes to BPC Policy No. 730 include updating the policy to reflect current Planning &Green Port programs, Energy; Environmental Conservation; Environmental Protection, Planning,Aquaculture and Blue Technology. Additional language includes the importance of San Diego Bay tonatural resources and the Port adaption of a Climate Action Plan and its goals.
Environmental FundChanges to the Environmental Fund purpose statement reflect current Planning & Green Portprograms and include the addition of habitat restoration, climate action planning, endangered speciesmanagement, environmental education and research and monitoring.
Tenant Environmental Compliance Loan ProgramThe goal of the Loan Program was to achieve environmental compliance and produce an overallenvironmental benefit to the Bay. The Loan Program was created by the Board in 2001 by resolution#2001-66, dated April 3, 2001, and amended by resolution #2001-273, dated December 11, 2001.The Loan Program would have provided low interest loans to Port tenants to support environmentalremediation or tenant environmental enhancement projects. A tenant, who qualified for a loan, couldapply for a maximum amount of $100,000, at a low fixed interest rate, payable over 5 years.
No tenant loan applications have been received since the loan program was established in 2001.Staff conducted outreach with the Port Tenants Association which did not voice any object to therescission of the program since no tenant has applied for the Loan Program.
Conclusion
Staff recommends the Board approve changes to BPC Policy No. 730 as set forth in Attachment A.The proposed changes include updating the policy based on current Planning & Green Portprograms, along with other non-substantive administrative updates, and to rescind the languageproviding the tenant loan program.
General Counsel’s Comments:
The Office of the General Counsel reviewed this agenda and the proposed changes to BPC PolicyNo. 730 as to form and legality.
Environmental Review:
The Board direction or action, including without limitation, a resolution authorizing changes to BPCPolicy No. 730, Port Environmental Advisory Committee Policy does not constitute an “approval” or a“project” under the definitions set forth in California Environmental Quality Act (CEQA) GuidelinesSections 15352 and 15378 because no direct or indirect changes to the physical environment wouldoccur. CEQA requires that the District adequately assess the environmental impacts of projects andreasonably foreseeable activities that may result from projects prior to the approval of the same. Anyproject developed as a result of Board’s action or direction that requires the District or the Board’sdiscretionary approval resulting in a physical change to the environment will be analyzed inaccordance with CEQA prior to such approval. CEQA review may result in the District, in its sole andabsolute discretion, requiring implementation of mitigation measures, adopting an alternative,
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including without limitation, a “no project alternative” or adopting a Statement of OverridingConsideration, if required. The current Board direction in no way limits the exercise of this discretion.Therefore, no further CEQA review is required.
In addition, this Board item complies with Section 87 of the Port Act, which allows for theestablishment and maintenance of those lands for open space, ecological preservation and habitatrestoration. The Port Act was enacted by the California Legislature and is consistent with the PublicTrust Doctrine. Consequently, the proposed Board direction or action is consistent with the PublicTrust Doctrine.
The proposed Board direction or action does not allow for “development,” as defined in Section30106 of the California Coastal Act, or “new development,” pursuant to Section 1.a. of the District’sCoastal Development Permit (CDP) Regulations because they will not result in, without limitation, aphysical change, change in use or increase the intensity of uses. Therefore, issuance of a CoastalDevelopment Permit or exclusion is not required. However, development within the District requiresprocessing under the District’s CDP Regulations. Future development, as defined in Section 30106 ofthe Coastal Act, will remain subject to its own independent review pursuant to the District’s certifiedCDP Regulations, PMP, and Chapters 3 and 8 of the Coastal Act. The Board’s direction or action inno way limits the exercise of the District’s discretion under the District’s CDP Regulations. Therefore,issuance of a CDP or exclusion is not required at this time.
Equal Opportunity Program:
Not applicable.
PREPARED BY:
Eileen MaherPrincipal, Environmental ConservationPlanning & Green Port
Heather KrampAssistant PlannerPlanning & Green Port
Attachment(s):Attachment A: BPC Policy No. 730 Port Environmental Advisory Committee Policy (redlined
copy)
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BBPC Policy No. 730
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SUBJECT: PORT ENVIRONMENTAL ADVISORY COMMITTEE POLICY
PURPOSE: To review and provide input and recommendations on Port environmental programs and initiatives, and comment on funding projects aimed at improving the condition of the Bay and surrounding Port tidelands, andprovide a Tenant Environmental Compliance Loan Program.
POLICY STATEMENT:
The Board of Port Commissioners (Board) is committed to protecting and improving the environmental conditions of San Diego Bay and Port tidelands (Bay). To that end, the Planning & Green Port program’s an Environmental Services Department (ESD)(PGP)and Environmental Advisory Committee (EAC) were created and invested with the responsibility of ensuring the Port’s compliance with environmental laws and regulations, as well as advising the Board on actions that can be taken to improve the condition of the Bay.
San Diego Bay is often referred to as the “Crown Jewel” of San Diego. Beneath its beautiful surface, the Bay serves a number of important ecological roles, serving as a spawning ground for many local fish species, acting as a key stopping point for a variety of bird species traveling along the Pacific Fly Way, and providing the discharge point for numerous creeks and rivers within the San Diego Bay watershed.
The Bay also has played an essential role in supporting the growth of the region’s population and economy. In the past, fulfilling this role often has resulted in negative impacts on the Bay. For years, raw sewage and industrial wastes were discharged, untreated, into the waters of the Bay. Modern environmental laws, coupled with the corporate commitments of Port industry, have significantly reduced some industrial sources of Bay pollution. Unfortunately, discharges continue in the form of urban runoff from businesses and homes throughout San Diego Bay’s extensive watershed.
The development of the Bay with hotels, roads and businesses has significantly altered the natural condition of the Bay. During the last 100 years, natural shoreline has beenremoved and replaced with artificial hard structures, a type of substrate not native to the Bay and of limited value to native wildlife. As a result, there has been a 70% loss of salt marsh, 84% loss of intertidal areas other than salt marsh, and a 42% loss of shallow subtidal zone habitats.
Improving the condition of the Bay cannot be accomplished solely through regulatory
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BBPC Policy No. 730
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compliance. The restoration of the Bay to a more pristine condition requires efforts that are beyond mere regulatory compliance . This will require the concerted, coordinated efforts of all the stakeholders of the Bay - academia, environmental groups, government, Port tenants, and regulatory and resource agencies. The Board has created the Environmental Advisory Committee (EACCommittee) to function as a forum to provide the Board with input and recommendations for accomplishing the Port’s strategic goal to “protect and improve the environmental conditions of San Diego Bay and the Tidelands.”
This EACCommittee Policy details the organization, structure and functioning of the Committee and management of the Environmental Fund.
ANALYSIS:
1. The Bay is the “Crown Jewel” of the San Diego region and a focal point in media descriptions of the San Diego region.
2. The Bay is an ecosystem which plays an important role in the broader, regional ecosystem, as illustrated by the U.S. Fish and Wildlife Service’s designation of south San Diego Bay as a National Wildlife refuge. The Bay is home to 89 species of fish, seven endangered species and thousands of birds visiting San Diego during their annual migration along the Pacific Fly Way.
3. The Bay is an important economic resource for the region, supporting the U.S. Navy’s Pacific Fleet, two marine terminals, three shipyards, other maritime industries, and 8,000 recreational boat slips, as well as a wide range of hotels, restaurants and convention facilities to support the tourism industry.
4. The Bay is the discharge point of urban runoff from throughout the San Diego Bay watershed, an area of 415 square miles and where 50% of the county’s population lives or works.
5. The ecological and economic roles or “uses” of the Bay have not always been compatible. As a result, the Bay’s sediments, home to organisms at the base of the food chain, contain “legacy” pollutants and historic habitat along the shoreline has been replaced by artificial concrete structures, including seawalls, which are inefficient as habitat.
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6. The Port of San Diego has accepted the role of “environmental championsteward” of the Bay, responsible for the protection and enhancement of 2,508 acres of tideland and 2,860 acres of water in the Bay.
7. The PGP ESD and EAC were created to ensure that the Port is in compliance with environmental laws and regulations. PGPESD programs include but are not limited to: Green Port; Energy; Environmental ConservationUrban Runoff; Environmental Protection, Planning, Aquaculture, Blue TechnologyRedevelopment; and Natural Resources. The PGPESD staffs theCommittee and manages the Environmental Fund, awarding grants to environmental programs and projects. .
8. The Port’s environmental efforts are a regional investment, benefiting the entire county by supporting assets such as hotels and shipyards, which provide jobs and support businesses throughout the region. The Port also incurs significant costs associated with the impacts of pollution from the region entering the Bay via urban runoff.
9. The Bay is one of this region’s most precious resources, and is an important fish nursery and a key stop over on the Pacific Flyway, for thousands of migratory birds. Protecting the bay and it s resources is important throughout different stages of wildlife development. By protecting and enhancing these habitats, we are ensuring the long term sustainability of the bay’s resources and doing so in a manner that creates resiliency to future impacts such as upstream pollution or sea level changes.
8.10.The Port adopted a Climate Action Plan (CAP) in 2013 to reduce greenhouse gas (GHG) emissions on Port tidelands. To achieve the goals, the CAP contains a palette of potential GHG reduction measures focusing on five key target areas: Transportation and Land Use, Energy Conservation and Efficiency, Alternative Energy Generation, Waste Reduction and Recycling, and Water Conservation and Recycling.
ENVIRONMENTAL ADVISORY COMMITTEE:
The EACCommittee operates according to the guidelines for all Board advisory
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committees, as established in BPC Policy No. 018 (2008-273, 2 December 2008) and articulated in the Charter prepared specifically for the EACCommittee. The purpose of this, and all other Port advisory committees, is to advise the Board. The EACCommitteeis advisory in nature and has no authority to negotiate for, represent, or commit the Port in any respect.
The membership of all committees is the prerogative of the Chair of the Board. In January of each calendar year, the incoming Chair establishes the slate of committees for that year and appoints the members of each. The EACCommittee shall be composed oftwo (2) or three (3) members of the Board and representatives of stakeholder groups including, but not limited to: Port tenants; environmental advocacy groups; the U.S. Navy; regulatory agencies; resource agencies; member cities; academia; local business; andlabor. EACCommittee membership shall not exceed eighteen members (stakeholders and two or three commissioners). This diverse membership will allow the EACCommitteeto achieve the Board’s goal of receiving input from a broad and balanced cross section of the community. EACCommittee meetings are intended to encourage input from stakeholders and interaction with Port staff and Board members.
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TERMS:
EACCommittee membership is the prerogative of the Chair of the Board. It is the intent of the Board to control the terms of an individual’s or organization’s participation in order to: (1) provide an opportunity for as many qualified and willing individuals as possible to serve their community; (2) promote equal opportunity for membership; (3) most precisely match membership’s expertise to the program’s needs.
Should a EACCommittee vacancy occur prior to the end of a member’s term, the Chair may choose to appoint a replacement for the unexpired portion of that term and notify the Board of such action. There will be no alternate EACCommittee members. EACCommittee members shall receive no compensation for their services.
CONFLICTS OF INTEREST:
To the extent required by law, the EACCommittee will operate in compliance with the Political Reform Act and Government Code section 1090 regarding conflicts of interest. EACCommittee members with financial interests in projects coming before the EACCommittee will be required to disclose the interest and abstain from any participation as to the matter. Members and their organizations seeking funding from the EACCommitteewill not be able to participate in the matter and may be subject to disqualifying requirements of Government Code section 1090.
Although Port District staff cannot provide legal advice to EAC Committee members regarding potential conflicts of interest, staff will be available to provide members with information to assist members in making appropriate determinations.
FUNDING MECHANISMS:
Environmental regulatory programs are focused largely on preventing contamination of the air, water and land or on maintaining habitat for birds, fish and wildlife. Efforts to restore areas to historic conditions are more problematic, whether it be by the remediation of areas with legacy contamination or the recovery of lost wetlands. Although regulatory programs exist to effect these changes, in almost all cases their implementation is exceedingly slow and drawn out, often by technical and legal challenges and, thus, the success of such programs often is less than optimal.
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The Board has developed a program to assist in funding environmental projects.
1. ENVIRONMENTAL FUND
+Purpose: The purpose of the Environmental Fund (Fund) is to fund projects that address air, water and sediment quality, sustainability and climate actionplanning, natural resources and endangered species management, habitatcreation, restoration or protection, reclaiming natural shoreline conditions,environmental education, research and monitoring, and/or other issues in the Bay and/or the tidelands.
Project Selection: Projects will be identified and reviewed by staff of PGP. the ESD Projects to be considered will be ranked on a Project List (List), which will be revised and/or updated as new potential projects are identified or other projects are removed. In evaluating a project for inclusion on the List, staff will determine if it meets the objectives identified by the EACCommittee.
In selecting projects, staff will address questions such as, but not limited to:
Will the project create new habitat for fish or birds?Will the project restore historic habitat that has been lost through development or other means?Will the project remediate, or hasten the move towards remediation, of a contaminated area of the Bay?Will the project enhance the public’s enjoyment of the Bay without impacting the environment?Will the project improve air quality in the region?Will the project reduce energy, waste and/or water use?Will the project improve environmental decision-making?Will the project prevent contamination of the Bay?Will the project resolve a regulatory impasse which has prevented, or significantly slowed, the restoration of the Bay?Is the project located within the Bay, or is it of direct benefit to the Bay and the surrounding region?
Project Approval: In order for a project to receive funding, whether partial, in-kind, or complete, the project must be approved by the Board. Neither staff nor the EACCommittee has the authority to act on behalf of the Board. The Board is the ultimate and final decision maker on all matters related to the
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BBPC Policy No. 730
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expenditure of funds.
Funding: Each year, the Board shall set aside ½ of 1% of the Port District’s projected gross revenues for that year. For the purpose of this calculation, gross revenue shall not include anticipated grants from any source or any other restricted revenue source. Such money set aside shall be expended for specific environmental projects or allocated to a fund set aside within the Port District Revenue Fund for environmental projects within the Port District.
The Port Act allows the maintenance of a single, general fund (Port Act, Section 10) and does not allow the creation and maintenance of multiple funds. The Board can choose to set aside money for an Environmental Fund within the Port District Revenue Fund. Money so set aside may be accumulated for more than one year, but its use, from year-to-year, will be subject to the discretion of the Board.
Staff will recommend projects to the EACCommittee, which will provide comments. Staff will then make a recommendation to the Board to approve funding for projects.
1. Seek funding from sources other than the Fund, and/or2. Seek matching funds from other sources.
2. TENANT ENVIRONMENTAL COMPLIANCE LOAN PROGRAM
Purpose: The goal of the Environmental Loan Program is to achieve environmental compliance and produce an overall environmental benefit to the Bay.
Background: The Port Tenants’ Environmental Compliance Loan Program (Loan Program) was created by the Board in 2001 (Docket No. 43239, December 21, 2004, approved by resolution 2001-66, dated April 3, 2001, and amended by resolution 2001-273, dated December 11, 2001). The Loan Program provides a low-cost source of funds to Port tenants to support environmental remediation or tenant environmental enhancement. The Port makes available to its tenants low interest loans for projects that will improve the environmental conditionsof the Bay. Tenants may qualify for a maximum amount of $100,000 at a low fixed interest rate, payable over 5 years.
Project Selection: Proposals are evaluated by a committee, which includes representatives from several Port departments, the Port Tenants Association and the Environmental Health Coalition.
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BBPC Policy No. 730
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In selecting projects, the Tenant Environmental Loan Committee will consider answers to such questions as:
Will the proposed project further protect the natural resources of the Bay?Will the project enhance the survivability of marine or bird life, increase the
visibility of endangered species and/or allow the survival of currently absent species?Will the project allow the removal of contamination from the Bay?Will the project result in an increase in the quality of the water, sediment and/or
air quality of the area?
Project Approval: Recommended projects are submitted by the selection committee to the Committee, who will make a recommendation to the Board. The Board has sole discretion to award funds.
Funding: Loans are made available through a lending institution. A fixed interest rate for the life of the loan will be fixed on the day the loan is dispersed. The loan rate will be the interest-earning rate paid by the lending institution to the Port on the collateralized certificate of deposit, securing the loan plus one hundred twenty-five basis points (1.25%). The term is a maximum of five years.
RESOLUTION NUMBER AND DATE: 2013-27, dated February 12, 2013 (Supersedes BPC Poly 730, Resolution 2010-96; dated June 8, 2010; Resolution 2010-34, dated March 2, 2010; 2007-138, 10 July 2007 and (Supercedes Resolution 2006-111, 6 June 2006)
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Agenda File No. 2018-0089 Page 1 of 2
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Appendix 7. Board of Port Commissioners
Policy No. 725
APPENDICES
(fc) San Diego Unified Port District
Document M" T * V . V ^ I
Filed
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ument NO.. , \»,»JLX»M.
. ,|IIM7fyilK Office of the District Clerk
BPC Policy No. 725
SUBJECT: TRANSITION ZONE POLICY
PURPOSE: It is the mission of the San Diego Unified Port District in accordance with the Port Act and Coastal Act to sustain regional nnaritime capacity balanced with environmental stewardship of the tidelands. The purpose of this policy is to protect maritime industrial lands and provide a transition to adjoining residential areas by establishing general guidelines to encourage the creation of transition zones between industrial lands and residential neighborhoods.
POLICY STATEMENT:
In recognition of the need to protect maritime and maritime related uses and preserve thousands of jobs provided by businesses in the waterfront industrial zones, a balance needs to be established between the needs of these industrial businesses and historic residential areas along the waterfront. It is imperative that conflicts from incompatible land uses be minimized. A Transition Zone would provide the needed balance while promoting the goals and objectives of adjacent community planning activities. To this end, the District is committed to work with the City of San Diego, the City of National City and community stakeholders to develop long term planning and land use guidelines and/or community specific plans that create Transition Zones between the District's industrial properties and residential neighborhoods.
The District will work with appropriate member cities to incorporate Transition Zone land use zoning and appropriate principles contained in the attached Working Waterfront Group "Concept for Transition Zone and Distribution Zone Policy" into member cities' general and community plans. The District will also work with State and Federal legislators and other agencies as appropriate including but not limited to the Coastal Commission, Air Pollution Control District, San Diego Association of Governments, and California Air Resources Board to assist in implementing a transition zone. The District may also acquire property to support maritime industrial uses or easements to preclude development of incompatible land uses within desired Transition Zone areas as it deems appropriate with or without public private partnerships.
RESOLUTION NUMBER AND DATE: 2008-112, dated June 10, 2008
Page 1 of 1
WWG Transition Zone Concept Policy 05-02-08 rev 12
Working Waterfront Group Concept for Transition Zone and Distribution Zone Policy
Under the Port Act, the mission of the San Diego Unified Port District includes the sustainment of regional maritime capacity and mandated service as the environmental steward of the tidelands. Today, we have the opportunity to effectively integrate our long term planning and land use objectives with the goals developed by the adjacent neighborhood community groups and residents.
The Residents and Community Stakeholders adjacent to our Port industrial properties deserve our utmost consideration as we formulate long-term strategies for the preservation of our waterfront jobs base and maritime economic engine. With environmentally sensitive planning, residential neighborhoods, green spaces and transportation corridors can be created and enhanced to achieve quality of life improvements for those that live and work in our tidelands community. Further, the opportunity exists to create gracefiil transitions between historic residential areas and the waterfront industrial zones that provide training and sustaining jobs to 42,000 families within the region.
In recognition of the need to preserve the thousands of jobs provided by those businesses in the waterfront industrial zones, we must achieve a balance between the needs of business, residential and recreational users of the waterfront. It is imperative that we prevent, as much as possible, conflicts that might result from incompatible land uses. A fransition zone would provide the needed balance while promoting the goals and objectives of adjacent community planning activities.
To accomplish these objectives, the Unified Port of San Diego and the cities of National City and San Diego should establish fransition zones between indusfrial land and residential neighborhoods. A properly planned transition zone is critical to the sustained growth and health of all the constituencies that make up the working waterfront. In furtherance of these objectives, the Unified Port of San Diego and the City of National City should also establish a distribution zone to address the area commonly known as the National Disfribution Center.
The primary purpose in developing this long-term sfrategy is to create the balance necessary to protect the neighboring residential areas from the impacts of industrial uses. Striking this balance benefits the working waterfront by providing greater certainty over the future uses, and benefits the residences by providing greater protection to their quality of life. The development of transition zones for various areas within the cities of National City and San Diego will individually recognize the particular factors relevant to each city.
All parties recognize the unique considerations applicable to the City of National City, and will account for these considerations in developing that particular fransition zone and disfribution zone. Accordingly, the parties acknowledge the importance of preserving residential neighborhoods by preventing indusfrial creep, allowing the continuance of existing businesses that benefit the City of National City, enhancing economic opportunity and revenue generation which includes the opportunity for large-scale, economically beneficial businesses to establish themselves within the fransition zone area of the City of National City, and, most importantly, enhancing the quality of life for residents of the City of National City by providing greater resident and visitor serving areas along or near the bay. These factors will drive the formation of both the transition zone area and disfribution zone area for the City of National City.
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WWG Transition Zone Concept Policy 05-02-08 rev 12
Definition of Transition Zone
The Working Waterfront Group proposes that the Port, the City of San Diego, the City of National City and community stakeholders develop land use guidelines and community or specific plans that create fransition zones from the Port's indusfrial properties to the bordering residential neighborhoods. The specific area under consideration should include those lands from the northern boundary of the Tenth Avenue Marine Terminal south to the Sweetwater Channel, bounded on the west by the Port tidelands, extending east from the existing tidelands to the adjacent residential neighborhoods. The fransition zone is defined in maps identified as Exhibits A and B, attached to this policy document. The width of the Transition Zone shall vary to accommodate community plans, city development plans, existing structures, and zoning, forming an irregular, tailored, eastern boundary.
The fransition zone should be a sequence of graduated land uses that serve to insulate and protect the integrity and environmental health of residential areas and concurrently preserve the maritime indusfrial jobs cluster. Typically this could be accomplished by a "transition zone" comprised of uses including but not sfrictly limited to, office space and greenbelt area adjacent to residential areas, bordering sfreets, fransit corridors and boulevards, parking and high-quality maritime adminisfrative office facilities. In regard to the City of National City, the factors identified in the above section will drive the uses in the fransition zone. Use of those factors will achieve the objectives of the Working Waterfront Group, protect National City residents, and enhance the economic sustainability and quality of life for National City.
The fransition zone areas are delineated on the maps attached as Exhibits A (San Diego) and B (National City). These maps delineate the intended boundaries of the fransition zones and shall not be affected by land purchases by the Port within these zones.
Definition of Disfribution Zone
The Working Waterfront Group proposes that the Port, the City of National City and community stakeholders develop land use guidelines and land use plans that create a disfribution zone for that property commonly known as the National Disfribution Center. The specific area under consideration should include the following uses, which sfrive to balance the needs of the Working Waterfront Group, the Port, the City of National City, and National City residents: tourist and visitor serving, retail, commercial, recreational, maritime industrial staging, intermodal fransfer, warehousing, and cargo assembly,
The disfribution zone area is delineated on the map attached as Exhibit B (National City). This map delineates the intended boundaries of the disfribution zone.
Key Principles
A fransition zone policy should adhere to the following key principles: • Transition zones should provide mandated separation between indusfrial and residential land
uses, safeguarding the environmental health of the regional neighborhoods and residents. • Transition zones should protect and enhance the existing and prospective operations of the
businesses governed by City plans. Community Group plans, and the Port Master Plan to include visitor serving, commercial, retail, indusfrial, working-waterfront, and maritime-related, job-producing indusfries.
• Transition zones should only permit uses that do not pose a health risk to sensitive receptor land uses adjacent to or in the near proximity.
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WWG Transition Zone Concept Policy 05-02-08 rev 12
• Transition zones should incentivize measures that reduce health risks, noise, fraffic, and nonrenewable energy consumption.
• Transition zone development in San Diego should be limited to the following uses: parking, office buildings and greenbelt areas.
• The Transition Zone areas of National City may also include existing indusfrial areas, existing businesses, and other appropriate land use designations including retail/commercial businesses, recreational areas and visitor serving business uses designated by the City of National City.
• Consistent with the above principles, transition zones should make the highest and best use of land.
A disfribution zone policy should adhere to the following key principles: • The disfribution zone area should include the following uses: tourist and visitor serving,
retail, commercial, recreational, maritime indusfrial staging, intermodal transfer, warehousing, and cargo assembly.
• The disfribution zone should only permit uses that do not pose a health risk to sensitive receptor land uses adjacent to or in the near proximity.
Areas of Engagement
The Working Waterfront Group's primary sfrategy is to work with Port cities to establish zoning regulations and planning policies that incorporate the stated transition zone and distribution zone principles.
While this document is not a land use planning document, the Working Waterfront Group does seek to encourage the adoption of land use policies and plans consistent with this document. In addition, the Working Waterfront Group's proposed policy is limited to those areas specifically discussed in this document, and does not propose to affect or modify those areas outside of the transition zone or disfribution zone.
Specifically, the WWG will participate in the following decision making bodies and processes:
• Request that the Board of Port Commissioners adopt the concept stated in this white paper. • Request that language be added to the San Diego General Plan Update to institutionalize the
principles outlined above. • Request that community or specific plan updates for neighborhoods near the working
waterfront reflect these principles. • Request that the Air Pollution Confrol Disfrict consider these principles in its decision
making process. • Request that the California Air Resources Board consider these principles in its decision
making process. • Meet with city council members from Port member cities to brief them on the fransition zone
policy.
The Port is encouraged to secure parcels within the desired transition zones with the concurrence of the affected cities and apply the standards inherent to the Port's Charter, thereby allowing not only sustained maritime use on existing Port lands but promoting development that will constitute environmentally compatible, non-residential land uses from the industrial zone to the eastern boundary of the fransition zone. The San Diego Unified Port Disfrict shall encourage public / private partnerships in order to secure and develop these parcels.
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Residential/Mixed Use
Residential/Mixed Use
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5
US NavyUS Navy
Working Waterfront
1,000 Foot Buffer
BNSF
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Re Adopt ion of BPC Policy 725, ] 53637
Transi t ion Zone Policy ]
R E S O L U T I O N 2008-112
BE I T RESOLVED by the Board of Port Commissioners of the San Diego Unified
Port District, as follows:
Tha t Board of Port Commissioners Policy N o . 725, Transit ion Zone Policy, a copy
of which shall be placed on file in the office of the District Clerk, is hereby adopted.
A D O P T E D this lOth day of JHIlf , 2008.
sw 6/10/08
Appendix 8. FRA Standards
(49 CFR, Volume 4, Part 210)
APPENDICES
63
Federal Railroad Administration, DOT § 210.3
isolated events. On the other hand, viola-tions involving willful actions and/or posing serious health, safety, or environmental threats should ordinarily result in enforce-ment actions, regardless of the entity’s size.
Once FRA has assessed a civil penalty, it is authorized to adjust or compromise the ini-tial penalty claims based on a wide variety of mitigating factors, unless FRA must ter-minate the claim for some reason. FRA has the discretion to reduce the penalty as it deems fit, but not below the statutory mini-mums. The mitigating criteria FRA evalu-ates are found in the railroad safety statutes and SBREFA: The severity of the safety or health risk presented; the existence of alter-native methods of eliminating the safety hazard; the entity’s culpability; the entity’s compliance history; the entity’s ability to pay the assessment; the impacts an assess-ment might exact on the entity’s continued business; and evidence that the entity acted in good faith. FRA staff attorneys regularly invite small entities to present any informa-tion related to these factors, and reduce civil penalty assessments based on the value and integrity of the information presented. Staff attorneys conduct conference calls or meet with small entities to discuss pending viola-tions, and explain FRA’s view on the merits of any defenses or mitigating factors pre-sented that may have resulted or failed to result in penalty reductions. Among the ‘‘other factors’’ FRA considers at this stage is the promptness and thoroughness of the entity’s remedial action to correct the viola-tions and prevent a recurrence. Small enti-ties should be sure to address these factors in communications with FRA concerning civil penalty cases. Long-term solutions to compliance problems will be given great weight in FRA’s determinations of a final settlement offer.
Finally, under FRA’s Safety Assurance and Compliance Program (SACP), FRA identifies systemic safety hazards that continue to occur in a carrier or shipper operation, and in cooperation with the subject business, de-velops an improvement plan to eliminate those safety concerns. Often, the plan pro-vides small entities with a reasonable time frame in which to make improvements with-out the threat of civil penalty. If FRA deter-mines that the entity has failed to comply with the improvement plan, however, en-forcement action is initiated.
FRA’s small entity enforcement policy is flexible and comprehensive. FRA’s first pri-ority in its compliance and enforcement ac-tivities is public and employee safety. How-ever, FRA is committed to obtaining compli-ance and enhancing safety with reasoned, fair methods that do not inflict undue hard-ship on small entities.
[68 FR 24894, May 9, 2003]
PART 210—RAILROAD NOISE EMIS-SION COMPLIANCE REGULA-TIONS
Subpart A—General Provisions
Sec. 210.1 Scope of part. 210.3 Applicability. 210.5 Definitions. 210.7 Responsibility for noise defective rail-
road equipment. 210.9 Movement of a noise defective loco-
motive, rail car, or consist of a loco-motive and rail cars.
210.11 Waivers. 210.13 Penalty.
Subpart B—Inspection and Testing
210.21 Scope of subpart. 210.23 Authorization. 210.25 Measurement criteria and procedures. 210.27 New locomotive certification. 210.29 Operation standards (moving loco-
motives and rail cars). 210.31 Operation standards (stationary loco-
motives at 30 meters). 210.33 Operation standards (switcher loco-
motives, load cell test stands, car cou-pling operations, and retarders).
APPENDIX A TO PART 210—SUMMARY OF NOISE STANDARDS, 40 CFR PART 201
APPENDIX B TO PART 210—SWITCHER LOCO-MOTIVE ENFORCEMENT POLICY
AUTHORITY: Sec. 17, Pub. L. 92–574, 86 Stat. 1234 (42 U.S.C. 4916); sec. 1.49(o) of the regula-tions of the Office of the Secretary of Trans-portation, 49 CFR 1.49(o).
SOURCE: 48 FR 56758, Dec. 23, 1983, unless otherwise noted.
Subpart A—General Provisions
§ 210.1 Scope of part.
This part prescribes minimum com-pliance regulations for enforcement of the Railroad Noise Emission Standards established by the Environmental Pro-tection Agency in 40 CFR part 201.
§ 210.3 Applicability.
(a) Except as provided in paragraph (b) of this section, the provisions of this part apply to the total sound emit-ted by moving rail cars and loco-motives (including the sound produced by refrigeration and air conditioning units that are an integral element of such equipment), active retarders,
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49 CFR Ch. II (10–1–10 Edition) § 210.5
switcher locomotives, car coupling op-erations, and load cell test stands, op-erated by a railroad as defined in 45 U.S.C. 22, under the conditions de-scribed in this part and in 40 CFR part 201.
(b) The provisions of this part do not apply to—
(1) Steam locomotives; (2) Street, suburban, or interurban
electric railways unless operated as a part of the general railroad system of transportation;
(3) Sound emitted by warning de-vices, such as horns, whistles, or bells when operated for the purpose of safe-ty;
(4) Special purpose equipment that may be located on or operated from rail cars;
(5) As prescribed in 40 CFR 201.10, the provisions of 40 CFR 201.11 (a) and (b) and (c) do not apply to gas turbinepowered locomotives or any lo-comotive type that cannot be con-nected by any standard method to a load cell; or
(6) Inert retarders.
[48 FR 56758, Dec. 23, 1983, as amended at 54 FR 33228, Aug. 14, 1989]
§ 210.5 Definitions. (a) Statutory definitions. All terms
used in this part and defined in the Noise Control Act of 1972 (42 U.S.C. 4901 et seq.) have the definition set forth in that Act.
(b) Definitions in standards. All terms used in this part and defined in § 201.1 of the Railroad Noise Emission Stand-ards, 40 CFR 201.1, have the definition set forth in that section.
(c) Additional definitions. As used in this part—
Administrator means the Federal Rail-road Administrator, the Deputy Ad-ministrator, or any official of FRA to whom the Administrator has delegated authority to act in the Administrator’s stead.
Consist of a locomotive and rail cars means one or more locomotives cou-pled to a rail car or rail cars.
FRA means the Federal Railroad Ad-ministration.
Inert retarder means a device or sys-tem for holding a classified cut of cars and preventing it from rolling out the bottom of a railyard.
Inspector means FRA inspectors or FRA specialists.
Noise defective means the condition in which railroad equipment is found to exceed the Railroad Noise Emission Standards, 40 CFR part 201.
Railroad equipment means rail cars, locomotives, active retarders, and load cell test stands.
Standards means the Railroad Noise Emission Standards, 40 CFR part 201. (See appendix A in this part for a list-ing.)
§ 210.7 Responsibility for noise defec-tive railroad equipment.
Any railroad that uses railroad equipment that is noise defective or engages in a car coupling operating that results in excessive noise accord-ing to the criteria established in this part and in the Standards is respon-sible for compliance with this part. Subject to § 210.9, such railroad shall—
(a) Correct the noise defect; (b) Remove the noise defective rail-
road equipment from service; or (c) Modify the car coupling procedure
to bring it within the prescribed noise limits.
§ 210.9 Movement of a noise defective locomotive, rail car, or consist of a locomotive and rail cars.
A locomotive, rail car, or consist of a locomotive and rail cars that is noise defective may be moved no farther than the nearest forward facility where the noise defective conditions can be eliminated only after the locomotive, rail car, or consist of a locomotive and rail cars has been inspected and been determined to be safe to move.
§ 210.11 Waivers. (a) Any person may petition the Ad-
ministrator for a waiver of compliance with any requirement in this part. A waiver of compliance with any require-ment prescribed in the Standards may not be granted under this provision.
(b) Each petition for a waiver under this section must be filed in the man-ner and contain information required by 49 CFR part 211.
(c) If the Administrator finds that a waiver of compliance applied for under paragraph (a) of this section is in the public interest and is consistent with
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Federal Railroad Administration, DOT § 210.25
railroad noise abatement and safety, the Administrator may grant a waiver subject to any condition he deems nec-essary. Notice of each waiver granted, including a statement of the reasons therefor, will be published in the FED-ERAL REGISTER.
§ 210.13 Penalty. Any person who operates railroad
equipment subject to the Standards in violation of any requirement of this part or of the Standards is liable to penalty as prescribed in section 11 of the Noise Control Act of 1972 (42 U.S.C. 4910), as amended.
Subpart B—Inspection and Testing § 210.21 Scope of subpart.
This subpart prescribes the compli-ance criteria concerning the require-ments for inspection and testing of railroad equipment or operations cov-ered by the Standards.
§ 210.23 Authorization. (a) An inspector is authorized to per-
form any noise test prescribed in the Standards and in the procedures of this part at any time, at any appropriate location, and without prior notice to the railroad, for the purpose of deter-mining whether railroad equipment is in compliance with the Standards.
(b)(1) An inspector is authorized to request that railroad equipment and appropriate railroad personnel be made available for a passby or stationary noise emission test, as prescribed in the Standards and in the procedures of this part, and to conduct such test, at a reasonable time and location, for the purpose of determining whether the railroad equipment is in compliance with the Standards.
(2) If the railroad has the capability to perform an appropriate noise emis-sion test, as prescribed in the Stand-ards and in the procedures of this part, an inspector is authorized to request that the railroad test railroad equip-ment. The railroad shall perform the appropriate test as soon as practicable.
(3) The request referred to in this paragraph will be in writing, will state the grounds upon which the inspector has reason to believe that the railroad equipment does not conform to the
Standards, and will be presented to an appropriate operating official of the railroad.
(4) Testing or submission for testing is not required if the cause of the noise defect is readily apparent and the in-spector verifies that it is corrected by the replacement of defective compo-nents or by instituting a normal main-tenance or repair procedure.
(c)(1) An inspector is authorized to inspect or examine a locomotive, rail car, or consist of a locomotive and rail cars operated by a railroad, or to re-quest that the railroad inspect or ex-amine the locomotive, rail car, or con-sist of a locomotive and rail cars, whenever the inspector has reason to believe that it does not conform to the requirements of the Standards.
(2) An inspector may request that a railroad conduct an inspection or ex-amination of a locomotive, rail car, or consist of a locomotive and rail cars on the basis of an excessive noise emission level measured by a passby test. If, after such inspection or examination, no mechanical condition that would re-sult in a noise defect can be found and the inspector verifies that no such me-chanical condition exists, the loco-motive, rail car, or consist of a loco-motive and rail cars may be continued in service.
(3) The requests referred to in this paragraph will be in writing, will state the grounds upon which the inspector has reason to believe that the loco-motive, rail car, or consist of a loco-motive and rail cars does not conform to the Standards, and will be presented to an appropriate operating official of the railroad.
(4) The inspection or examination re-ferred to in this paragraph may be con-ducted only at recognized inspection points or scheduled stopping points.
§ 210.25 Measurement criteria and pro-cedures.
The parameters and procedures for the measurement of the noise emission levels are prescribed in the Standards.
(a) Quantities measured are defined in § 201.21 of the Standards.
(b) Requirements for measurement instrumentation are prescribed in § 201.22 of the Standards. In addition,
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49 CFR Ch. II (10–1–10 Edition) § 210.27
the following calibration procedures shall be used:
(1)(i) The sound level measurement system including the microphone shall be calibrated and appropriately ad-justed at one or more nominal fre-quencies in the range from 250 through 1000 Hz at the beginning of each series of measurements, at intervals not ex-ceeding 1 (one) hour during continual use, and immediately following a meas-urement indicating a violation.
(ii) The sound level measurement system shall be checked not less than once each year by its manufacturer, a representative of its manufacturer, or a person of equivalent special com-petence to verify that its accuracy meets the manufacturer’s design cri-teria.
(2) An acoustical calibrator of the microphone coupler type designed for the sound level measurement system in use shall be used to calibrate the sound level measurement system in accord-ance with paragraph (b)(1)(i) of this section. The calibration must meet or exceed the accuracy requirements spec-ified in section 5.4.1 of the American National Standard Institute Standards, ‘‘Method for Measurement of Sound Pressure Levels,’’ (ANSI S1.13–1971) for field method measurements.
(c) Acoustical environment, weather conditions, and background noise re-quirements are prescribed in § 201.23 of the Standards. In addition, a measure-ment tolerance of 2 dB(A) for a given measurement will be allowed to take into account the effects of the factors listed below and the interpretations of these effects by enforcement personnel:
(1) The common practice of reporting field sound level measurements to the nearest whole decibel;
(2) Variations resulting from com-mercial instrument tolerances;
(3) Variations resulting from the to-pography of the noise measurement site;
(4) Variations resulting from atmos-pheric conditions such as wind, ambi-ent temperature, and atmospheric pres-sure; and
(5) Variations resulting from re-flected sound from small objects al-lowed within the test site.
§ 210.27 New locomotive certification.
(a) A railroad shall not operate a lo-comotive built after December 31, 1979, unless the locomotive has been cer-tified to be in compliance with the Standards.
(b) The certification prescribed in this section shall be determined for each locomotive model, by either—
(1) Load cell testing in accordance with the criteria prescribed in the Standards; or
(2) Passby testing in accordance with the criteria prescribed in the Stand-ards.
(c) If passby testing is used under paragraph (b)(2) of this section, it shall be conducted with the locomotive oper-ating at maximum rated horsepower output.
(d) Each new locomotive certified under this section shall be identified by a permanent badge or tag attached in the cab of the locomotive near the lo-cation of the inspection Form F 6180.49. The badge or tag shall state:
(1) Whether a load cell or passby test was used;
(2) The date and location of the test; and
(3) The A-weighted sound level read-ing in decibels obtained during the passby test, or the readings obtained at idle throttle setting and maximum throttle setting during a load cell test.
§ 210.29 Operation standards (moving locomotives and rail cars).
The operation standards for the noise emission levels of moving locomotives, rail cars, or consists of locomotives and rail cars are prescribed in the Standards and duplicated in appendix A of this part.
(a) Measurements for compliance shall be made in compliance with the provisions of subpart C of the Stand-ards and the following:
(1) Consists of locomotives con-taining at least one locomotive unit manufactured prior to December 31, 1979, shall be evaluated for compliance in accordance with § 201.12(a) of the Standards, unless a locomotive within the consist is separated by at least 10 rail car lengths or 500 feet from other locomotives in the consist, in which case such separated locomotives may
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Federal Railroad Administration, DOT § 210.33
be evaluated for compliance according to their respective built dates.
(2) Consists of locomotives composed entirely of locomotive units manufac-tured after December 31, 1979, shall be evaluated for compliance in accordance with § 201.12(b) of the Standards.
(3) If the inspector cannot establish the built dates of all locomotives in a consist of locomotives measured under moving conditions, evaluation for com-pliance shall be made in accordance with § 201.12(a) of the Standards.
(b) Noise emission standards for rail cars operating under moving condi-tions are contained in § 201.13 of the Standards and are stated in appendix A of this part. If speed measurement equipment used by the inspector at the time of the measurement is not oper-ating within an accuracy of 5 miles per hour, evaluation for compliance shall be made in accordance with § 201.13(2) of the Standards.
(c) Locomotives and rail cars tested pursuant to the procedures prescribed in this part and in the Standards shall be considered in noncompliance when-ever the test measurement, minus the appropriate tolerance (§ 210.25), exceeds the noise emission levels prescribed in appendix A of this part.
§ 210.31 Operation standards (sta-tionary locomotives at 30 meters).
(a) For stationary locomotives at load cells:
(1) Each noise emission test shall begin after the engine of the loco-motive has attained the normal cooling water operating temperature as pre-scribed by the locomotive manufac-turer.
(2) Noise emission testing in idle or maximum throttle setting shall start after a 40 second stabilization period in the throttle setting selected for the test.
(3) After the stabilization period as prescribed in paragraph (a)(2) of this section, the A-weighted sound level reading in decibels shall be observed for an additional 30-second period in the throttle setting selected for the test.
(4) The maximum A-weighted sound level reading in decibels that is ob-served during the 30-second period of time prescribed in paragraph (a)(3) of
this section shall be used for test meas-urement purposes.
(b) The following data determined by any locomotive noise emission test conducted after December 31, 1976, shall be recorded in the ‘‘Remarks’’ section on the reverse side of Form F 6180.49:
(1) Location of test; (2) Type of test; (3) Date of test; and (4) The A-weighted sound level read-
ing in decibels obtained during the passby test, or the readings obtained at idle throttle setting and maximum throttle setting during a load cell test.
(c) Any locomotive subject to this part that is found not to be in compli-ance with the Standards as a result of a passby test shall be subjected to a load cell test or another passby test prior to return to service, except that no such retest shall be required if the cause of the noise defect is readily ap-parent and is corrected by the replace-ment of defective components or by a normal maintenance or repair proce-dure.
(d) The last entry recorded on Form F 6180.49 as required in paragraph (b) of this section shall be transcribed to a new Form FRA F 6180.49 when it is posted in the locomotive cab.
(e) Locomotives tested pursuant to the procedures prescribed in this part and in the Standards shall be consid-ered in noncompliance wherever the test measurement, minus the appro-priate tolerance (§ 210.25), exceeds the noise emission levels precribed in ap-pendix A of this part.
§ 210.33 Operation standards (switcher locomotives, load cell test stands, car coupling operations, and re-tarders).
(a) Measurement on receiving prop-erty of the noise emission levels from switcher locomotives, load cell test stands, car coupling operations, and re-tarders shall be performed in accord-ance with the requirements of 40 CFR part 201 and § 210.25 of this part.
(b) These sources shall be considered in noncompliance whenever the test measurement, minus the appropriate tolerance (§ 210.25), exceeds the noise emission levels prescribed in appendix A of this part.
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49 CFR Ch. II (10–1–10 Edition) Pt. 210, App. A
APPENDIX A TO PART 210—SUMMARY OF NOISE STANDARDS, 40 CFR PART 201
Paragraph and section Noise source
Noise standard— A weighted
sound level in dB
Noise measure 1 Measurement lo-cation
All Locomotives Manufactured on or Before 31 December 1979
201.11(a) .................... Stationary, Idle Throttle Setting ............................ 73 Lmax (slow) .......... 30 m (100 ft) 201.11(a) .................... Stationary, All Other Throttle Settings .................. 93 ......do ................. Do. 201.12(a) .................... Moving ................................................................... 96 Lmax (fast) ........... Do.
All Locomotives Manufactured After 31 December 1979
201.11(b) .................... Stationary, Idle Throttle Setting ............................ 70 Lmax (slow) .......... Do. 201.11(b) .................... Stationary, All Other Throttle Settings .................. 87 ......do ................. Do. 201.12(b) .................... Moving ................................................................... 90 Lmax (fast) ........... Do. 201.11(c) and
201.12(c).Additional Requirement for Switcher Locomotives
Manufactured on or Before 31 December 1979 Operating in Yards Where Stationary Switcher and other Locomotive Noise Exceeds the Re-ceiving Property Limit of.
65 L90 (fast) 2 ........... Receiving prop-erty
201.11(c) .................... Stationary, Idle Throttle Setting ............................ 70 Lmax (slow) .......... 30 m (100 ft) 201.11(c) .................... Stationary, All Other Throttle Settings .................. 87 ......do ................. Do. 201.12(c) .................... Moving ................................................................... 90 Lmax (fast) ........... Do.
Rail Cars
201.13(1) .................... Moving at Speeds of 45 mph or Less .................. 88 ......do ................. Do. 201.13(2) .................... Moving at Speeds Greater than 45 mph .............. 93 ......do ................. Do.
Other Yard Equipment and Facilities
201.14 ........................ Retarders ............................................................... 83 Ladjavemax (fast) .... Receiving prop-erty
201.15 ........................ Car-Coupling Operations ...................................... 92 ......do ................. Do. 201.16 ........................ Locomotive Load Cell Test Stands, Where the
Noise from Locomotive Load Cell Operations Exceeds the Receiving Property Limits of.
65 L90 (fast) 2 ........... Do.
201.16(a) .................... Primary Standard .................................................. 78 Lmax (slow) .......... 30 m (100 ft). 201.16(b) .................... Secondary Standard if 30-m Measurement Not
Feasible.65 L90 (fast) ............. Receiving prop-
erty located more than 120 m from Load Cell.
1 Lmax=Maximum sound level; L90=Statistical sound level exceeded 90% of the time; Ladjavemax=Adjusted average maximum sound level.
2 L90 must be validated by determining that L10–L99 is less than or equal to 4dB (A).
[48 FR 56758, Dec. 23, 1983; 49 FR 1521, Jan. 12, 1984]
APPENDIX B TO PART 210—SWITCHER LOCOMOTIVE ENFORCEMENT POLICY
The EPA standards require that the noise emissions from all switcher locomotives in a particular facility be less than prescribed levels measured at 30 meters, under all oper-ating modes. This requirement is deemed to be met unless ‘‘receiving property’’ noise due to switcher locomotives exceeds 65 dB(A), when measured in accordance with subpart C of 40 CFR part 201. The 65 dB(A) receiving property standard is the ‘‘trigger’’ for requir-ing the 30-meter test of switcher loco-motives.
The purpose underlying FRA’s enforce-ment of the noise standards is to reduce the impact of rail operations noise on receiving properties. In some instances, measures other than the 30-meter test approach may more effectively reduce the noise levels at
receiving properties; therefore, FRA enforce-ment efforts will focus on abatement proce-dures that will achieve a reduction of receiv-ing property noise levels to less than 65 dB(A).
For example, a parked, idling locomotive, even if equipped with exhaust silencing that meets the stationary locomotive standard (30-meter test), may cause the receiving property standard to be exceeded if located on trackage adjacent to the receiving prop-erty. In that case, application of the 30- meter test to other switcher locomotives at the facility may not serve to reduce the re-ceiving property noise level. On the other hand, operational changes by the railroad could significantly reduce receiving property noise levels. In such case, FRA would con-sider retesting after abatement measures have been taken. If the receiving property noise level is below the trigger and the
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abatement action is adopted, FRA would not make a 30-meter test of the switcher loco-motives at the facility.
PART 211—RULES OF PRACTICE
Subpart A—General
Sec. 211.1 General. 211.3 Participation by interested persons. 211.5 Regulatory docket. 211.7 Filing requirements. 211.9 Content of rulemaking and waiver pe-
titions.
Subpart B—Rulemaking Procedures
211.11 Processing of petitions for rule-making.
211.13 Initiation and completion of rule-making proceedings.
211.15 Notice and participation. 211.17 Publication and contents of notices. 211.19 Petitions for extensions of time to
comment. 211.21 Consideration of comments received. 211.23 Additional public proceedings. 211.25 Hearings. 211.27 Publication of adopted rules and
withdrawal of notices. 211.29 Petitions for reconsideration of a
final rule. 211.31 Proceedings on petitions for reconsid-
eration of a final rule. 211.33 Direct final rulemaking procedures.
Subpart C—Waivers
211.41 Processing of petitions for waiver of safety rules.
211.43 Processing of other waiver petitions. 211.45 Petitions for emergency waiver of
safety rules.
Subpart D—Emergency Orders
211.47 Review procedures.
Subpart E—Miscellaneous Safety-Related Proceedings and Inquiries
211.51 Tests. 211.53 Signal applications. 211.55 Special approvals. 211.57 Petitions for reconsideration. 211.59 Proceedings on petitions for reconsid-
eration. 211.61 Informal safety inquiries.
Subpart F—Interim Procedures for the Review of Emergency Orders
211.71 General. 211.73 Presiding officer; powers. 211.75 Evidence. 211.77 Appeal to the Administrator.
APPENDIX A TO PART 211—STATEMENT OF AGENCY POLICY CONCERNING WAIVERS RE-LATED TO SHARED USE OF TRACKAGE OR RIGHTS-OF-WAY BY LIGHT RAIL AND CON-VENTIONAL OPERATIONS
AUTHORITY: 49 U.S.C. 20103, 20107, 20114, 20306, 20502–20504, and 49 CFR 1.49.
SOURCE: 41 FR 54181, Dec. 13, 1976, unless otherwise noted.
Subpart A—General § 211.1 General.
(a) This part prescribes rules of prac-tice that apply to rulemaking and waiver proceedings, review of emer-gency orders issued under 45 U.S.C. 432, and miscellaneous safety-related pro-ceedings and informal safety inquiries. The specific time limits for disposition of proceedings apply only to pro-ceedings initiated after December 31, 1976, under the Federal Railroad Safety Act of 1970 (45 U.S.C. 421 et seq.). When warranted, FRA will extend these time limits in individual proceedings. How-ever, each proceeding under the Fed-eral Railroad Safety Act shall be dis-posed of within 12 months after the date it is initiated. A proceeding shall be deemed to be initiated and the time period for its disposition shall begin on the date a petition or application that complies with the requirements of this chapter is received by the person des-ignated in § 211.7.
(b) As used in this part—(1) Administrator means the Federal
Railroad Administrator or the Deputy Administrator or the delegate of either of them.
(2) Waiver includes exemption.(3) Safety Act means the Federal Rail-
road Safety Act of 1970, as amended (45 U.S.C. 421 et seq.).
(4) Docket Clerk means the DocketClerk, Office of Chief Counsel, Federal Railroad Administration, 1200 New Jer-sey Avenue, SE., Mail Stop 10, Wash-ington, DC 20590 or the Docket Clerk, U.S. Department of Transportation, Docket Operations (M–30), West Build-ing Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590–0001.
(5) Railroad Safety Board means theRailroad Safety Board, Office of Safe-ty, Federal Railroad Administration, Washington, DC 20590.
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