powerpoint presentation · 2018-10-29 · the addition or relocation of interchange lanes or ramps...
TRANSCRIPT
![Page 1: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/1.jpg)
Footer Text Date
ENV125 Basics of Traffic Noise and TxDOT’s
Policy
9/12/18
![Page 2: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/2.jpg)
Footer Text Date
Agenda
Introduction and Overview
– Traffic Noise Toolkit
Fundamentals of Noise
Traffic Noise Analysis Process
– Regulations and Guidance
• The major objectives of a traffic noise analysis
2
![Page 3: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/3.jpg)
Footer Text Date
Traffic Noise Toolkit
All current noise guidance and information in one place!
http://www.txdot.gov/inside-txdot/division/environmental/compliance-toolkits/traffic-noise.html
2011 Guidelines for the Analysis and Abatement of Roadway Traffic Noise (Proposed 2018 TxDOT Noise Policy)
Federal Rule: 23 CFR 772
Traffic Noise Handbook (to be replaced by Implementation Guidance)
Document Template Text
Letters to Local Officials Template
3
![Page 4: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/4.jpg)
Footer Text Date
Traffic Noise Guidance and Policy
TxDOT’s Traffic Noise
Policy (2018)
PROPOSED
4
![Page 5: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/5.jpg)
Footer Text Date
Sound/Noise
Noise Analyses
Sound/Noise
O
V
E
R
V
I
E
W
![Page 6: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/6.jpg)
Footer Text Date
Highway Traffic Sound
Source Receiver < Propagation Medium >
![Page 7: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/7.jpg)
Footer Text Date
Decibel
A-weighting
Equivalent Level
Decibel
![Page 8: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/8.jpg)
Footer Text Date
Rock Band
Pneumatic Hammer
Food Blender
Downtown
Vacuum Cleaner
Air Conditioning Unit
Dishwasher
Library
6,324,555
2,000,000
632,456
200,000
63,246
20,000
6,325
2,000
110
100
90
80
70
60
50
40
PRESSURE micro Pascals
SOURCES
LEVEL decibels
L 10log (P )
(P ) 10log
(P )
(P )
D
D (St)
2
ref
2
o
2
ref
2
o
2
2 2
![Page 9: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/9.jpg)
Footer Text Date
SOURCES
Rock Band
Pneumatic Hammer
Food Blender
Downtown
Vacuum Cleaner
Air Conditioning Unit
Dishwasher
Library
LEVEL decibels
110
100
90
80
70
60
50
40
x2
120
63
![Page 10: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/10.jpg)
Footer Text Date
A-weighting
Decibel
A-weighting
Equivalent Level
![Page 11: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/11.jpg)
Footer Text Date
6,300 1,000 7 8 9 >
4 5 6 <
1 2 3 /
DIS PRO OUT SEC
ENT NEX CLR SFT
0 + - %
SOUND ANALYZER
MIKEE-LECTRONICS
65 70 75 85 75 70 65
-weighting
![Page 12: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/12.jpg)
Footer Text Date
Decibel
Equivalent Level
A-weighting
Equivalent Level
![Page 13: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/13.jpg)
Footer Text Date
L = 10log 1T
10 L10
eq 10t
t=1
N
time
sound level
![Page 14: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/14.jpg)
Footer Text Date
SOUND LEVEL
-1 dBA Not perceptible
-3 dBA Barely perceptible
-5 dBA Readily perceptible
Change Loudness Subjective
![Page 15: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/15.jpg)
Footer Text Date
O
V
E
R
V
I
E
W
Sound/Noise
Noise Analyses Noise Analyses
![Page 16: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/16.jpg)
Footer Text Date
Traffic Noise Guidance and Policy
TxDOT guidelines
conform to federal rule
(regardless of funding)
–23 CFR 772
TxDOT’s Guidelines for
the Analysis and
Abatement of Roadway
Traffic Noise (2011)
16
![Page 17: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/17.jpg)
Footer Text Date
Determine if a Type I project
The construction of a highway on new location; or,
The physical alteration of an existing highway where there is either:
– Substantial Horizontal Alteration
– Substantial Vertical Alteration
The addition of a through-traffic lane(s)
The addition of an auxiliary lane, except for when the auxiliary lane is a turn lane; or,
The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or,
Restriping existing pavement for the purpose of adding a through-traffic lane or an auxiliary lane; or,
The addition of a new or substantial alteration of a weigh station, rest stop, ride-share facility, or toll plaza.
17
![Page 18: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/18.jpg)
Footer Text Date
TRAFFIC DATA!!!!
First thing to do when you know you have a Type I analysis
GET TRAFFIC DATA!!!!
18
Traffic Information
Existing
Predicted
Speed Limits
Collect Data
![Page 19: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/19.jpg)
Footer Text Date
TRAFFIC DATA!!!!
19
Receiver < Propagation Medium > Source
- Future -- 20 years
- Existing Traffic
Traffic Data
- Future Traffic
- Worse-Case
- Full Speed
- Predicted dBA
![Page 20: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/20.jpg)
Footer Text Date
Traffic Data Request
20
When requesting Traffic Data use
TPP Form 2124
Make sure to check Box 1 (Basic
Highway Traffic Data), 2 (Vehicle
Classification for Environmental
Studies), 3 (Line Diagram Analysis)
ALL TRAFFIC MUST BE FROM TPP
OR APPROVED BY TPP
![Page 21: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/21.jpg)
Footer Text Date
Traffic Data
21
![Page 22: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/22.jpg)
Footer Text Date
Traffic Data: Line Diagram with Turning Movements
22
Light Duty Vehicles
Medium Duty Vehicles
Heavy Duty Vehicles
% of ADT % of DHV
91.0 92.8
6.0 4.2
3.0 3.0
% of ADT % of DHV
97.0 98.3
2.0 1.7
1.0 0.0
Frontage Roads
and
Streets
Mainlanes
K-factor: 10.5%
31800
21700
3600
1600
4700
3000
33900
22600 31800
21700
35200
23500
6200
4100
1300
900
1000
500
1000
500
3400
1500 800
400
800
400 4900
3200
AVERAGE DAILY TRAFFIC (ADT) VOLUMES
SH 123
DHV = ADT (x) K-factor
65 SPEED
LIMIT
40 SPEED
LIMIT
LEGEND
1000 - 2015 ADT
1000 - 2035 ADT
Projects that involve more than
mainlanes and frontage roads typically
with require a depiction of turning
movements - - from TPP.
![Page 23: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/23.jpg)
Footer Text Date
Determine Need for Traffic Noise
Analysis of a Highway Project
- New Location, or
- Substantial Realignment, or
- Addition of Through-Traffic Lane
Analysis not
required
Traffic
Information
Design
Information
Measure/Model
Noise Levels
Existing Levels Predicted Levels
Predicted levels exceed
existing by more than 10 dBA
Predicted levels approach,
equal, or exceed the NACOR
Consider/Evaluate
Abatement Measures
Traffic
Management
Alteration of
Alignment
Acquisition of
Buffer Zone
Construction of
Noise Barriers
Insulation of
Public Buildings
Construction
Noise
Information for
Local Officials
NOYES
IF
IF
NO
YES
Determine Impact
Additional
Topics
Collect Data
Abatement not
required
Project
Reevaluation
Collect Data Design
Information
Roadways
Receivers
Site Characteristics
Source of Sound
Receiver of Sound
Propagation Path
![Page 24: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/24.jpg)
Footer Text Date
Roadway Design and Site Characteristics
Electronic CAD files with Roadway Design
– Striping
– Edge of Pavement
– Any other relevant design information
Adjacent Topography if available
– Other sources would be GIS, Google Earth, Surveys
ELEVATIONS ARE CRITICAL TO BARRIER DESIGN
24
![Page 25: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/25.jpg)
Footer Text Date
A Brief Overview of the Traffic Noise Process
The major objectives of a traffic noise analysis are to:
– Identify areas where possible noise impacts may occur for each project
alternative.
– Consider and evaluate abatement measures to mitigate these impacts.
– Propose implementation of feasible and reasonable abatement measures.
– Communicate the results to the public and local officials.
Important: it is never too early to discuss possible noise abatement
25
![Page 26: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/26.jpg)
Footer Text Date
A Brief Overview of the Traffic Noise Process
Identify adjacent land uses
for noise sensitive areas
(residences, schools,
churches, parks, etc)
INCLUDES PERMITTED
DEVELOPMENT
26
![Page 27: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/27.jpg)
Footer Text Date
Noise Receiver Selection Criteria
27
![Page 28: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/28.jpg)
Footer Text Date
A Brief Overview of the Traffic Noise Process
FHWA’s Traffic Noise Model
(TNM) is used to model all
impacts
28
![Page 29: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/29.jpg)
Footer Text Date
Table 6: NOISE ABATEMENT CRITERIA
Activity
Category
FHWA
(dB(A)
Leq)
TxDOT
(dB(A)
Leq)
Description of Land Use Activity Areas
A 57
(exterior)
56
(exterior)
Lands on which serenity and quiet are of extra-
ordinary significance and serve an important public
need and where the preservation of those qualities is
essential if the area is to continue to serve its
intended purpose.
B 67
(exterior)
66
(exterior)
Residential
C 67
(exterior)
66
(exterior)
Active sport areas, amphitheaters, auditoriums,
campgrounds, cemeteries, day care centers,
hospitals, libraries, medical facilities, parks, picnic
areas, places of worship, playgrounds, public
meeting rooms, public or nonprofit institutional
structures, radio studios, recording studios,
recreation areas, Section 4(f) sites, schools ,
television studios, trails, and trail crossings
D 52
(interior)
51
(interior)
Auditoriums, day care centers, hospitals, libraries,
medical facilities, places of worship, public
meeting rooms, public or nonprofit institutional
structures, radio studios, recording studios,
schools, and television studios
E 72
(exterior)
71
(exterior)
Hotels, motels, offices, restaurants/bars, and other
developed lands, properties, or activities not included
in A-D or F.
F -- -- Agricultural, airports, bus yards, emergency services,
industrial, logging, maintenance facilities,
manufacturing, mining, rail yards, retail facilities,
shipyards, utilities (water resources, water treatment,
electrical), and warehousing.
G -- -- Undeveloped lands that are not permitted.
![Page 30: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/30.jpg)
Footer Text Date
Determine Need for Traffic Noise
Analysis of a Highway Project
- New Location, or
- Substantial Realignment, or
- Addition of Through-Traffic Lane
Analysis not
required
Traffic
Information
Design
Information
Measure/Model
Noise Levels
Existing Levels Predicted Levels
Predicted levels exceed
existing by more than 10 dBA
Predicted levels approach,
equal, or exceed the NACOR
Consider/Evaluate
Abatement Measures
Traffic
Management
Alteration of
Alignment
Acquisition of
Buffer Zone
Construction of
Noise Barriers
Insulation of
Public Buildings
Construction
Noise
Information for
Local Officials
NOYES
IF
IF
NO
YES
Determine Impact
Additional
Topics
Collect Data
Abatement not
required
Project
Reevaluation
Determine Impact
Predicted levels approach,
equal, or exceed the NAC
ABSOLUTE CRITERION
Predicted levels exceed
existing by more than 10 dBA
RELATIVE CRITERION
OR
IF
![Page 31: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/31.jpg)
Footer Text Date
Table 6: NOISE ABATEMENT CRITERIA
Activity
Category
FHWA
(dB(A)
Leq)
TxDOT
(dB(A)
Leq)
Description of Land Use Activity Areas
A 57
(exterior)
56
(exterior)
Lands on which serenity and quiet are of extra-
ordinary significance and serve an important public
need and where the preservation of those qualities is
essential if the area is to continue to serve its
intended purpose.
B 67
(exterior)
66
(exterior)
Residential
C 67
(exterior)
66
(exterior)
Active sport areas, amphitheaters, auditoriums,
campgrounds, cemeteries, day care centers,
hospitals, libraries, medical facilities, parks, picnic
areas, places of worship, playgrounds, public
meeting rooms, public or nonprofit institutional
structures, radio studios, recording studios,
recreation areas, Section 4(f) sites, schools ,
television studios, trails, and trail crossings
D 52
(interior)
51
(interior)
Auditoriums, day care centers, hospitals, libraries,
medical facilities, places of worship, public
meeting rooms, public or nonprofit institutional
structures, radio studios, recording studios,
schools, and television studios
E 72
(exterior)
71
(exterior)
Hotels, motels, offices, restaurants/bars, and other
developed lands, properties, or activities not included
in A-D or F.
F -- -- Agricultural, airports, bus yards, emergency services,
industrial, logging, maintenance facilities,
manufacturing, mining, rail yards, retail facilities,
shipyards, utilities (water resources, water treatment,
electrical), and warehousing.
G -- -- Undeveloped lands that are not permitted.
I M P A C T ? ABSOLUTE CRITERION RELATIVE
OR, if predicted levels exceed
existing by more than 10 dBA
“approach, equal or exceed”
FHWA Noise Abatement Criteria
” ……1 dBA below
![Page 32: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/32.jpg)
Footer Text Date
Determine Need for Traffic Noise
Analysis of a Highway Project
- New Location, or
- Substantial Realignment, or
- Addition of Through-Traffic Lane
Analysis not
required
Traffic
Information
Design
Information
Measure/Model
Noise Levels
Existing Levels Predicted Levels
Predicted levels exceed
existing by more than 10 dBA
Predicted levels approach,
equal, or exceed the NACOR
Consider/Evaluate
Abatement Measures
Traffic
Management
Alteration of
Alignment
Acquisition of
Buffer Zone
Construction of
Noise Barriers
Insulation of
Public Buildings
Construction
Noise
Information for
Local Officials
NOYES
IF
IF
NO
YES
Determine Impact
Additional
Topics
Collect Data
Abatement not
required
Project
Reevaluation
Determine
Noise Levels
Existing Levels Predicted Levels
Measured by
Sound Meter
Modeled by
Computer
OR Modeled
![Page 33: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/33.jpg)
Footer Text Date
A Brief Overview of the Traffic Noise Process
The major objectives of a traffic noise analysis are to:
– Identify areas where possible noise impacts may occur for each project
alternative.
– Consider and evaluate abatement measures to mitigate these impacts.
– Propose implementation of feasible and reasonable abatement measures.
– Communicate the results to the public and local officials.
Important: it is never too early to discuss possible noise abatement
33
![Page 34: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/34.jpg)
Footer Text Date
Noise Barrier
Source Receiver - Propagation Path -
Noise Abatement
![Page 35: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/35.jpg)
Footer Text Date
A Brief Overview of the Traffic Noise Process
35
![Page 36: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/36.jpg)
Footer Text Date
Determine Need for Traffic Noise
Analysis of a Highway Project
- New Location, or
- Substantial Realignment, or
- Addition of Through-Traffic Lane
Analysis not
required
Traffic
Information
Design
Information
Measure/Model
Noise Levels
Existing Levels Predicted Levels
Predicted levels exceed
existing by more than 10 dBA
Predicted levels approach,
equal, or exceed the NACOR
Consider/Evaluate
Abatement Measures
Traffic
Management
Alteration of
Alignment
Acquisition of
Buffer Zone
Construction of
Noise Barriers
Insulation of
Public Buildings
Construction
Noise
Information for
Local Officials
NOYES
IF
IF
NO
YES
Determine Impact
Additional
Topics
Collect Data
Abatement not
required
Project
Reevaluation
Reasonable AND
Propose
Abatement
Evaluate
Abatement Measures
Feasible
![Page 37: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/37.jpg)
Footer Text Date
Cost Reasonableness
37
2018
2011 • Less than 1388 square feet per
benefiting receiver
• ($18 square foot/$25k per benefiter)
• Less than 1500 square feet
per benefiting receiver
• $35 square foot
• $52.5k per benefiter
![Page 38: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/38.jpg)
Footer Text Date
Cost Reasonableness
38
• Less than 1500 square feet per
benefiting receiver
• ($35 square foot/$52.5k per
benefiter)
![Page 39: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/39.jpg)
Footer Text Date
Cost Reasonableness
39
• Less than 1500 square feet per
benefiting receiver
• ($35 square foot/$52.5k per
benefiter)
12’
375’
![Page 40: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/40.jpg)
Footer Text Date
Feasible
effective reduction in noise -?
![Page 41: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/41.jpg)
Footer Text Date
Feasible
-? -5 (or more)
![Page 42: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/42.jpg)
Footer Text Date
Feasible
-? -5 (or more)
Reasonable
Cost-reasonableness
Criterion
Size for each
Benefited Receiver
1500 square feet (or less)
![Page 43: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/43.jpg)
Footer Text Date
Reasonable
1500 sq ft (or less)
-? (or more)
AND
Feasible
-5
-4 -4 -5 -5 -5 -7 -5 -5
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? NOISE BARRIER ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
For Example
![Page 44: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/44.jpg)
Footer Text Date
-? -5 (or more)
Feasible
(or less)
Reasonable
AND
Total Cost 6,000 total sq ft
-4 -4 -5 -5 -5 -7 -5 -5 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? NOISE BARRIER ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
6 benefiters
= 1,000 sq ft
Sq Ft for each
Benefited Receiver
Total Sq Ft
#Benefited =
1,500 sq ft
![Page 45: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/45.jpg)
Footer Text Date
A Brief Overview of the Traffic Noise Process
The major objectives of a traffic noise analysis are to:
– Identify areas where possible noise impacts may occur for each project
alternative.
– Consider and evaluate abatement measures to mitigate these impacts.
– Propose implementation of feasible and reasonable abatement measures.
– Communicate the results to the public and local officials.
Important: it is never too early to discuss possible noise abatement
45
![Page 46: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/46.jpg)
Footer Text Date
A Brief Overview of the Traffic Noise Process
Noise Barrier
AKA Sound Walls
46
![Page 47: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/47.jpg)
Footer Text Date
A Brief Overview of the Traffic Noise Process
Why not pavement or vegetation?
47
![Page 48: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/48.jpg)
Footer Text Date
15 feet
Vegetation
100 feet = perceptible
reduction
![Page 49: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/49.jpg)
Footer Text Date
Vegetation
- dense enough that it cannot be seen through
- coverage: floor to canopy
- evergreen
![Page 50: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/50.jpg)
Footer Text Date
- dense enough that it cannot be seen through
- coverage: floor to canopy
- evergreen
Vegetation
![Page 51: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/51.jpg)
Footer Text Date
Vegetation
“... provides only psychological benefits”
“... may be provided for visual, privacy or
aesthetic treatment”
“... not a noise abatement measure”
![Page 52: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/52.jpg)
Footer Text Date
Pavement
![Page 53: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/53.jpg)
Footer Text Date
PRIORITIES NOISE SAFETY DURABILITY
*FHWA: “should never be jeopardized”
* *
![Page 54: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/54.jpg)
Footer Text Date
FHWA Concern ….. can “quiet”
pavement continue to effectively
reduce noise levels over the life
of the pavement?
FHWA
Traffic Noise
Policy
“The use of specific pavement
types or surface textures must
not be considered as a noise
abatement measure.”
![Page 55: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/55.jpg)
Footer Text Date
FHWA Concern ….. can “quiet”
pavement continue to effectively
reduce noise levels over the life
of the pavement?
FHWA
Traffic Noise
Policy
“The use of specific pavement
types or surface textures must
not be considered as a noise
abatement measure.”
“Additional research is needed to
determine to what extent different
types of pavements contribute to
traffic noise.”
research
![Page 56: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/56.jpg)
Footer Text Date
![Page 57: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/57.jpg)
Footer Text Date
A Brief Overview of the Traffic Noise Process
The major objectives of a traffic noise analysis are to:
– Identify areas where possible noise impacts may occur for each project
alternative.
– Consider and evaluate abatement measures to mitigate these impacts.
– Propose implementation of feasible and reasonable abatement measures.
– Communicate the results to the public and local officials.
57
![Page 58: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/58.jpg)
Footer Text Date
Documentation Templates
http://ftp.dot.state.tx.us/pu
b/txdot-
info/env/toolkit/730-01-
ds.pdf
58
![Page 59: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/59.jpg)
Footer Text Date
Noise Workshop
59
??????????????????????? SOUND WALL ??????????????????????
Consent of a Majority of BENEFITING AND ABUTTING Property Owners
Benefiting receivers can be on the second (or any row)!!!
![Page 60: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/60.jpg)
Footer Text Date
Noise Workshop
Purpose: to provide sufficient information to owners of property benefiting
and abutting a proposed noise barrier(s) that will allow these owners to make
an informed vote for or against the proposed noise barrier(s).
Timing: after the public hearing has occurred
INFORMAL PUBLIC INVOLVEMENT CAN HAPPEN AT ANY TIME IN THE
PROJECT’S DEVELOPMENT.
60
![Page 61: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/61.jpg)
Footer Text Date
Noise Workshop: Sample Ballot
61
NOISE BARRIER BALLOT SH 286 EXPANSION and SH 358 INTERCHANGE PROJECT
NOISE WORKSHOP, May 23, 2000
In conjunction with the SH 286 expansion and SH 358 interchange project, the Texas Department of Transportation proposes to construct a noise barrier within the right-of-way west of SH 286 between Gollihar Road and Mansheim Drive. However, the proposed noise barrier cannot be constructed without the approval, by majority vote, of adjacent property owners. 1. Do you own property adjacent to the right-of-way west of SH 286 between Gollihar
Road and Mansheim Drive? YES ______ NO ______
2. FULL NAME (please print)
ADDRESS TELEPHONE NO. _____________________________
3. Are you for or against the construction of the proposed noise barrier within the right-of-way west of SH 286 between Gollihar Road and Mansheim Drive? Only one vote is allowed for each property.
FOR _____ AGAINST _____ This vote is final.
4. Comments (use reverse if necessary):
SIGNATURE (required) __________________________________ DATE
The ballot must be completed and signed by the property owner of record.
If possible, please bring your completed and signed ballot to the Noise Workshop.
If you are not able to attend the Noise Workshop, please send your completed and signed ballot (must be postmarked no later than ……………) to: Texas Department of Transportation, Attention: …………..P.O. Box 9907, Corpus Christi, TX, 78469-9907.
1) Adjacent property owners will be notified of the results of the vote for or against the proposed noise barrier after all ballots have been received and counted.
![Page 62: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/62.jpg)
Footer Text Date
Noise Workshop: Mailing
Mailing preferably by prestamped/preaddressed return envelope
include a description of the noise barrier and the noise effects with and
without the barrier.
Include a description of the decision making process that TxDOT will follow to
assess the survey/ballot results and make a decision on whether to build the
barrier.
Include an invitation to the meeting with the location and time
62
![Page 63: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/63.jpg)
Footer Text Date
Letters to Local Officials
Used to inform local officials regarding the department’s responsibilities
regarding noise abatement for new development once an environmental
decision has been made.
Required for all projects adjacent to undeveloped lands
Cannot occur before document has been signed
Minimal notification:
– Urban area is the Mayor’s Office
– Rural or suburban area, the County Judge’s Office.
Template letter found in Traffic Noise Toolkit
Notice of Availability Template found in Public Involvement Toolkit
63
![Page 64: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/64.jpg)
Footer Text Date
ECOS Documentation
Noise Workshop Summary
– Documentation of the completed traffic noise workshops shall include:
• a summary of the materials presented
• comments from the public and associated responses, and
• the results of the ballots for each proposed barrier.
Noise Analysis Technical Reports
Super 2 correspondence
64
![Page 65: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/65.jpg)
Footer Text Date
ECOS Documentation – TNM model
TNM model
65
![Page 66: PowerPoint Presentation · 2018-10-29 · The addition or relocation of interchange lanes or ramps added to a quadrant to complete an existing partial interchange; or, Restriping](https://reader034.vdocuments.site/reader034/viewer/2022042200/5ea08aa79cb6d91bac7e33e6/html5/thumbnails/66.jpg)
Footer Text Date
Noise Workshop
66