inside this edition dynamic traffic assignment in travel ... · many ncite members attended the...

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Dynamic Traffic Assignment in Travel Modeling Krista Anderson, PE | SRF Consulting Inc. In each issue, the INCITER features an article coordinated by one of NCITE’s technical committees. This article is a contribution from the Planning Methods and Applications Committee. President’s Message 3 Upcoming Events 4 Section Meetings 5 ITE Annual Meeting 6 YMC Update 7 Technical Committee Update 10 Connecting the Park 11 Navigating Concerns about Mini Roundabouts 13 Updating ATC Cabinets 15 Advertisers 17 Member Updates 20 JOB OPENINGS Visit the NCITE website for current job openings | nc-ite.org (Continued on page 8) INSIDE THIS EDITION Volume 36 | Number 3 | Summer 2019 Cortney Falero Newsletter Editor Dynamic Traffic Assignment (DTA) is a travel modeling approach that cap- tures the relationship between dynamic route (path) choice and transportation network characteristics. DTA models provide a much more fine-grained spatial and temporal resolution than is typically available in traditional (static) four- step models, as static demand forecasting (STA) models do not model dynam- ic congestion. To provide more realistic travel demand results, DTA models have begun to be adopted in transportation planning and traffic management models. The major benefit of using DTA is the capability of the modeling meth- od to consider the temporal and spatial effects of congestion in determining route choice, time of departure choice, and mode choice. The use of DTA in transportation modeling is an emerging analysis approach; the benefits of ap- plying DTA in transportation analysis increase with network size and level of congestion. FHWA Foundations of DTA

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Dynamic Traffic Assignment in Travel Modeling

Krista Anderson, PE | SRF Consulting Inc.

In each issue, the INCITER features an article coordinated by one of NCITE’s technical committees. This article is a contribution from the Planning Methods and Applications Committee.

President’s Message

3

Upcoming Events 4

Section Meetings 5

ITE Annual Meeting 6

YMC Update 7

Technical Committee Update

10

Connecting the Park 11

Navigating Concerns about Mini Roundabouts

13

Updating ATC Cabinets

15

Advertisers 17

Member Updates 20

JOB OPENINGS Visit the NCITE website for current job openings | nc-ite.org

(Continued on page 8)

INSIDE THIS EDITION

Volume 36 | Number 3 | Summer 2019

Cortney Falero Newsletter Editor

Dynamic Traffic Assignment (DTA) is a travel modeling approach that cap-

tures the relationship between dynamic route (path) choice and transportation

network characteristics. DTA models provide a much more fine-grained spatial

and temporal resolution than is typically available in traditional (static) four-

step models, as static demand forecasting (STA) models do not model dynam-

ic congestion. To provide more realistic travel demand results, DTA models

have begun to be adopted in transportation planning and traffic management

models. The major benefit of using DTA is the capability of the modeling meth-

od to consider the temporal and spatial effects of congestion in determining

route choice, time of departure choice, and mode choice. The use of DTA in

transportation modeling is an emerging analysis approach; the benefits of ap-

plying DTA in transportation analysis increase with network size and level of

congestion.

FHWA Foundations of DTA

President

Vice President

Secretary

Treasurer

Directors

Past President

Midwestern ITE District NCITE Officer

Intersection Traffic Control

Planning Methods and Applications

Pedestrian and Traffic Safety

Geometric Design

ITS

Young Member Committee

Professional Development

Student Activities and Career Guidance

Communications

Membership

Newsletter

Traffic Operation and Maintenance Discussion Group

University of Minnesota

Simulation and Capacity Analysis

www.nc-ite.org

Technology

2

EXECUTIVE COMITTEE STANDING COMITTEES

TECHNICAL COMMITTEES

STUDENT CHAPTERS

MIDWESTERN ITE

Website

Midwestern ITE District Director

Summer 2019

Scott Poska, Alliant Engineering, Inc. 612.767.9369

[email protected]

Jeff Preston, Stantec 651.604.4816

[email protected]

Jacob Folkeringa, SRF Consulting Group 763.452.4730

[email protected]

Kevin Peterson, Washington County 651.430.4330

[email protected]

Tyler Krage, Alliant Engineering, Inc. 612.450.9305

[email protected]

Philip Kulis, SRF Consulting Group 763.251.4033

[email protected]

Jonah Finkelstein, Spack Consulting 888.233.1012

[email protected]

Joe DeVore, KLJ 651.222.2176 Ext. 6923

[email protected]

Mark Wagner, MnDOT [email protected]

Ann Stewart, Alliant Engineering, Inc. 612.767.9322

[email protected]

Chad Jorgenson, SEH 651.256.0427

[email protected]

Morgan Hoxsie, Kimley-Horn 612.294.9726

[email protected]

Cortney Falero, SRF Consulting Group 763.452.4806

[email protected]

Jacob Folkeringa, SRF Consulting Group 763.452.4730

[email protected]

Jeremy Melquist, KLJ

[email protected]

Kristin Carlson, CTS Accessibility Observatory 612.626.4052

[email protected]

Ellie Lee, Alliant Engineering

[email protected]

Jordan Schwarze, Alliant Engineering, Inc. [email protected]

Jonah Finkelstein, Spack Consulting 888.233.1012

[email protected]

Scott Poska, Alliant Engineering, Inc. 612.767.9369

[email protected]

Krista Anderson, SRF Consulting Group 763.452.4804

[email protected]

Todd Olsen, Alliant Engineering, Inc. 612.720.0811

[email protected]

Thomas Jantscher, HRGreen 6951.659.7769

[email protected]

Adam Bruening, Washington County 651.430.4398

[email protected]

KC Atkins, Toole Design 612.584.4094 x 506

[email protected]

Philip Kulis, SRF Consulting Group 763.251.4033

[email protected]

Justin Sebens, SRF Consulting Group 763.249.6743

[email protected]

Kristi Sebastian, Dakota County 952.891.7178

[email protected]

Aaron Bruinsma, President [email protected]

Jason Miller, President [email protected]

North Dakota State University

Lucas Borgerson, President [email protected]

Duluth

3

Jeff Preston, 2019 NCITE President I can’t believe summer is winding down. The days are getting shorter, and some of you may be like me and getting the kids into back to school mode. Just as school is about to get back into session, NCITE is also coming out of the summer months with a full slate of upcoming activities. A quick review of items since our last newsletter: The Summer Social occurred in June and included a tailgating event and St Paul Saints game. With everyone’s busy summer schedule, it was nice to see a good group enjoying networking and outdoor baseball. The Joint Midwestern District and MOVITE Annual Meeting was held in St. Louis, Missouri. NCITE was well represented at the meeting, with members given the opportunity to attend technical sessions and social/networking events. The ITE Annual Meeting was held in Austin, Texas. It was fun to see a large NCITE contingent at the meetings and showcasing members hard work with well-deserved awards. Congratulations to Dakota County for receiving the ITE Transportation Achieve-ment Award for Planning projects with the Southview Boulevard Improvement Project. It is great to see some national attention be put on the outstanding people and projects that occur within our Section. In addition, NCITE finished in third place for the District/Section Communications Award behind the Western and Southern Districts. This is not an easy task when competing against all the Districts and Sections within ITE. Kudos to our Communications Chair Jake Folkeringa and the entire Communications Committee. I had the opportunity to participate in the 2019 LeadershipITE program this year. If you haven’t heard of this program, I’d like to share a few points. ITE developed this program to identify, develop, and engage leaders to ensure that ITE and its members are positioned to participate and shape the future of transportation. I feel there are many Section members that would excel in the program. If you or someone you know would be in-terested, please click here 2020 LeadershipITE to find out more information. Applications are due September 16, 2019. Please take a look, I can assure you won’t regret it. NCITE activities are getting back into the swing of things for Fall, the September Section Meeting will be held on Wednesday, September 18th at Lucky’s 13 Pub in Roseville. Please save the date for the two final events of the calendar year. First, the NCITE Annual Meeting is sched-uled for Thursday, November 14

th at TopGolf. And second, the NCITE Transportation Symposium sched-

uled for Wednesday, December 11th. Make sure to check out the NCITE Calendar on the website for information on all our upcoming events. Lastly, there are only a few days left of summer, so make sure to enjoy the cabin time or anything fried and on a stick at the State Fair. Jeff Preston 2019 NCITE President

PRESIDENT’S MESSAGE

www.nc-ite.org

Summer 2019

4

2019 NCITE Transportation Symposium—Call for Abstracts

Abstracts due September 26, 2019 Conference on December 11, 2019

Continuing Education @ Conference Center | St. Paul, MN

2019 Statewide Towards Zero Deaths Conference

October 23-24, 2019 River’s Edge Convention Center | St. Cloud, MN

2019 CTS Transportation Research Conference November 7, 2019

Graduate Hotel | Minneapolis, MN

For professional development opportunities: http://nc-ite.org/content.php?page=Professional_Development_Meetings

Upcoming NCITE Events:

http://nc-ite.org/calendar.php

UPCOMING EVENTS

www.nc-ite.org

Summer 2019

Many NCITE members attended the Summer Social which included a happy hour with refreshments, pizza, and games held at KLJ Engineering prior to walking to CHS field to see the St. Paul Saints take on the Fargo Moorhead Red Hawks. This year’s event had a great turnout despite some early showers.

5

JUNE SUMMER SOCIAL

www.nc-ite.org

Summer 2019

6 www.nc-ite.org

Summer 2019

Several NCITE members took part in the 2019 ITE Annual Meeting in Austin Texas. In addition to the live mu-sic, BBQ, and scooters a few highlights include:

• Scott Poska presented a poster session on ‘Navigation Apps Impact on Transportation’.

• A big congratulations to the NCITE Communications Group for taking home the 3rd Place ITE International

District and Section Communications Award.

• Congratulations to Jeff Preston, 2019 NCITE President, for his graduation from the Leadership ITE pro-

gram.

• Job well done to Phil Kulis who took home a prize pack for his driving skills at the Siemens presentation booth.

Next year’s ITE Annual meeting will be held in New Orleans August 9-12 2020.

NCITE AT THE ITE ANNUAL MEETING—AUSTIN, TX

Members of the Younger Member Committee (YMC) had a great summer event hosting a bike-brewery tour in June that had an excellent turn out. The bike ride around Uptown and Downtown Minneapolis began and ended at Alliant Engineering with stops at Lakes & Legend Brewing Company, Lyn Lake Brewery, and Liquor Lyle’s as well as several pedestrian and bicycle improvement projects recently completed in Minneapolis. Join us for upcoming activities this fall!! Tentative Upcoming YMC Schedule: Sept. 12th: Happy our at Marvel Bar Speakeasy at 5:30, business smart attire encouraged Oct. 5th: Gopher game with YMC, ITSO, and PSO members November - NCITE Annual Meeting If you would like to be added to the YMC email list, or know of any new hires/coworkers that would enjoy our

events, please send email addresses to Ellie Lee ([email protected]) or Kristin Carlson ([email protected])

7

YMC UPDATE

www.nc-ite.org

Summer 2019

8

DTA models use the principle of dynamic user equilibrium, where all routes are used by travelers leaving the same origin at the same time for the same destination have equal and minimal travel times, but the sets of used paths can be different at different points in time. DTA is based on experienced travel times, rather than instantaneous ones, requiring an iterative process. Most DTA models can be placed into this general frame-work:

The biggest strength of DTA models is a much more realistic traffic flow model, but it comes with tradeoffs. A

DTA network and its associated traffic controls typically require more detail than the network used in STA

models, and obtaining sufficiently detailed traffic signal information, road geometries (turn pockets and multi-

ple turning lanes, transit service and access) can be time consuming. Although traffic signal locations are of-

ten available, the challenge is obtaining phasing, timing, and progression information. Given the large level of

effort needed to code signals into a large network, most models use approximate defaults for the majority of

intersection locations. However, without reasonably good signal plans, the DTA can struggle with conver-

gence and networks can become overloaded with congestion. The degree of detail needed for the modeling

signals also depends on the model package being used, with microsimulation models typically requiring more

detail than a DTA model. Future-year conditions can also be an issue.

Once a DTA model has been calibrated, there are several applications where DTA can be extremely useful.

For example, DTA models are useful for assessing traffic management actions, in situations where either

supply (roadway capacity) or travel demand ten to be highly time dependent, and in situations where it is nec-

essary to report congestion and queuing in greater spatial and temporal detail than is possible with STA mod-

els. DTA is also suitable for analyses incidents, construction zones, Active Transportation and Demand Man-

agement (ATDM) strategies, Integrated Corridor Management (ICM) strategies, Intelligent Transportation

Systems (ITS), and other operational strategies, as well as capacity increasing strategies.

Practical and successful DTA applications are quite possible, even though building a DTA model is time-

consuming and can be tricky, so it should be well thought out before embarking on the effort. Agencies need

to understand the benefits of DTA so that a decision can be made about when and where DTA can add value

to planning efforts.

Dynamic Traffic Assignments in Travel Modeling (continued from page 1)

(Continued on page 9) www.nc-ite.org

Introduction to Dynamic Traffic Assignment

Summer 2019

9

If an STA model can adequately answer all the policy questions, then there is no need to invest resources in the development and application of a DTA model. Increasingly, however, policy questions are emerging that necessitate the use of DTA, as DTA can provide greater insights into the impact of peak spreading, travel time reliability, dynamic operational changes, dynamic pricing scenarios, and traveler behaviors. When com-pared to an existing STA model, DTA applications require higher levels of effort, so they will likely prolong the timeframe required to analyze policies. DTA models also facilitate answering questions that cannot be an-swered with STA. The advantages of DTA can be leveraged when it is implemented appropriately and effec-tively.

Sources: https://ops.fhwa.dot.gov/publications/fhwahop13015/fhwahop13015.pdf https://www.fhwa.dot.gov/planning/tmip/publications/other_reports/dta_model_applications/fhwahep16078.pdf https://sboyles.github.io/teaching/ce392d/1-whatisdta.pdf

FHWA Foundations of Dynamic Traffic Assignment Workshop

Dynamic Traffic Assignment in Travel Modeling (continued from page 8)

www.nc-ite.org

Summer 2019

FHWA Foundations of DTA

10

TECHNICAL COMMITTEE UPDATE

www.nc-ite.org

Geometric Design Technical Committee Committee Chair: Thomas Jantscher - [email protected] Recent Agenda Items: Denny Ehler, SRF – Signalized Intersections. Future Agenda Items: Will Stein, FHWA & Vic Lund, St. Louis County – Continuous Green T Intersec-tions. Next Meeting: Monday October 14

th, 10:00am-12:00pm, HR Green (St. Paul Office).

Intersection Traffic Control Technical Committee Committee Chair: Philip Kulis - [email protected] Recent Agenda Items: Denny Ehler, SRF – Signalization of Roundabouts. Future Agenda Items: FYA forum and dynamic FYA operations. Next Meeting: Tuesday September 17

th, 8:00am-10:00am, MnDOT Water’s Edge, Room 403.

ITS Technical Committee Committee Chair: Todd Olson - [email protected] Recent Agenda Items: : Kansas Truck Parking Information Management System presentation by Mark Gallagher of SRF. Future Agenda Items: MnROAD Automated Truck Project presentation by Mike Kronzer of MnDOT. Next Meeting: Tuesday October 1

st, 1:00pm – 3:00pm, MnDOT Water’s Edge, Conf. Room A.

Pedestrian and Traffic Safety Technical Committee Committee Chair: KC Atkins - [email protected] Recent Agenda Items: DezignLine Quick-Build Bicycle and Pedestrian Safety Infrastructure Solutions. Future Agenda Items: TBD

Next Meeting: TBD

Planning Methods and Applications Technical Committee Committee Chair: Krista Anderson - [email protected] Recent Agendas Items: ABM user’s guide discussion. New population synthesizer update. Future Agendas Items: TBD Next Meeting: TBD

Simulation and Capacity Analysis Technical Committee Committee Chair: Justin Sebens - [email protected] Recent Agenda Items: RDV Systems presentation on lessons learned incorporating VISSIM into the visualization workflow. Future Agenda Items: TBD Next Meeting: Wednesday September 4

th, 2:30pm, MnDOT Water’s Edge

Traffic Operation and Maintenance Discussion Group Committee Chair: Adam Bruening - [email protected] Recent Agenda Items: Discussion on replacement of mast arm signs. Future Agenda Items: Round table. Next Meeting: Wednesday September 4

th, 11:30am, Location TBD (First Wednesday of each month).

Summer 2019

11

Connecting the Park Luke Wheeler, EIT | Bolton & Menk Inc.

Matt Blazer, PE | Bolton & Menk Inc.

In a world of planes, trains, and automobiles, more and more travelers are opting to use bicycles—an envi-

ronmentally and economically friendlier way to get around your community. The City of St. Louis Park has

made it a priority to ensure bicyclists have the necessary facilities to make safe and efficient trips by initiat-

ing their Connect the Park Plan in 2012.

Connect the Park is the city’s 10-year plan to construct a comprehensive, citywide network of bikeways,

sidewalks, and trails enabling residents access to nearby pedestrian facilities to travel about the city. Each

year, several Connect the Park projects are completed as they move toward their goal of a fully-connected

city. When possible, projects are aligned with Capital Improvement Plan street maintenance projects and

engineering staff use community engagement and feedback to help guide each project’s designs. This year,

Cedar Lake Road’s 1.5 miles of collector street from Kentucky Avenue to Quentin Avenue was selected as

the Connect the Park project corridor. This stretch connects a major collector of Louisiana Avenue to the up

-and-coming area of the city’s famed West End. The Cedar Lake Road project, currently under construction,

includes utility improvements, pavement rehabilitation, lighting improvements, intersection improvements, a

roundabout, and a revamped corridor section that contains new on- and off-street bicycle lanes and ADA-

compliant improvements.

The city wanted to implement three different cycle tracks along the corridor, so to ensure the new pedestri-

an facilities were in line with the city’s vision. Several on- and off-street bicycle lane designs were consid-

ered. Design factors included safe and efficient crossings of side streets, pedestrian/bicycle interactions,

active connections to transit sources, increased connectivity between existing bicycle facilities, and of

course, cost.

In each issue, the INCITER features articles coordinated by NCITE’s advertisers. This article is a contribution from Bolton & Menk Inc.

www.nc-ite.org (Continued on page 12)

Cedar Lake Road Visualization Source : Bolton & Menk

Summer 2019

12

Project staff determined that the best way to maximize the existing right-of-way through the corridor was to install a dedicated off-street cycle track on the south side of Cedar Lake Road. A separate sidewalk and an on-street bicycle lane on the north side of the road was implemented to maintain the existing sidewalk behind the curb. In order to differentiate the cycle track with the sidewalk directly adjacent to it, colored concrete was used for the off-street cycle track. The bicycle lane on the north side of the street uses a variable striped buff-er to separate bicycle traffic from motorized traffic. Special considerations had to be taken to ensure bicyclist and pedestrian safety at conflict points at bus lanes

and bumpouts. An expanded three-feet gutter pan along the curb line was also incorporated, doubling as a

curb reaction zone for motorists. Careful consideration was made at intersections to ensure cyclists could

safely cross traffic. Specialized ADA-compliant ramps were designed on the south side of the road to transi-

tion cyclists from the off-street cyclist track, onto the roadway to cross the intersection, and safely back onto

the off-street bicycle lane. Green bicycle lane crosswalk blocks adjacent to pedestrian crosswalk blocks were

also implemented to clarify pedestrian crossings from bicycle lane crossings. The bicycle community request-

ed a separate lane for advanced cyclists during the public engagement process, so in addition to these two

bicycle lanes, a smaller third cyclist track was implemented on the south side of Cedar Lake Road.

These new cycle tracks are an integral part of a larger comprehensive bicycle network throughout the City of

St. Louis Park. These bicycle tracks along Cedar Lake Road will serve as a safe and efficient transportation

option for travelers opting for non-motorized transportation to get around the city.

www.nc-ite.org

Connect the Park (continued from page 11)

Cedar Lake Road Layout Plan Source : Bolton & Menk

Summer 2019

13

Navigating Concerns about Mini Roundabouts Natalie Sager, PE | HDR

Brandi Popenhagen, PE | HDR

When the concept of a mini roundabout is first introduced to the public on a project, there might be a nega-

tive response; after all, the term “mini” means smaller than standard, right? There may even be pushback to

roundabouts in general, and a bias towards signalized or stop-controlled intersections, which are more fa-

miliar. This was a challenge that MnDOT and the project management team faced for the Highway 316 Cor-

ridor Study in Hastings, MN.

What is a Mini Roundabout?

A mini roundabout provides the benefits of a standard roundabout, but also has a smaller diameter to better

fit within available public right-of-way. The center of the roundabout is navigable by large trucks, and is

slightly raised to deter passenger vehicles from driving straight through the intersection.

Highway 316 Corridor Study

Highway 316 is a Principal Arterial that provides a direct connection between Hastings and Red Wing. With-

in Hastings, Highway 316 has a high density of industrial, retail, commercial, and residential land uses, with

driveways directly off of the highway. Locals have voiced concerns regarding vehicle speeds, highway ac-

cess during peak periods, and walkability/bikeability. Mini roundabouts were evaluated in the project corri-

dor to address primary project needs.

In each issue, the INCITER features articles coordinated by NCITE’s advertisers. This article is a contribution from HDR.

www.nc-ite.org (Continued on page 14)

Highway 316 Concepts: Highway 61 to 33rd St West

Summer 2019

14

Navigating Public Concerns

When mini roundabout concepts were introduced to local business representatives, several concerns were

voiced, including:

• Can trucks u-turn in the mini roundabout(s)?

• How would trucks with fragile shipments navigate or avoid the roundabout(s)?

• How will access be maintained during construction?

Through a series of business workshops and one-on-one conversations, sentiments were changed more pos-

itively towards mini roundabouts. Key strategies included:

Be Transparent: When introducing a concept that is new to the general public, it is important to explain and

document why it is being considered, what other concepts were considered, and how concepts were evaluat-

ed. For example, a traffic signal was considered, but did not move forward based on the findings of signal

warrant analyses and its inability to address the long side-street delay.

Explain the Pros and Cons: A pros and cons list was developed to help showcase the benefits and down-

falls of installing mini roundabout(s) on the corridor, including:

Provide Examples and Supporting Data:

A big turning point in the project occurred when visuals and examples of mini roundabouts were presented. A

case study in St. James, MN, which had business owners with similar concerns who later became advocates

after the roundabouts were constructed, was presented. Businesses with fragile freight (Cambria and GM

Runge Trucking) were interviewed to gain perspective on load shifting through raised surfaces, such as the

proposed mini roundabouts, and helped to convey their comfort level based on experiences. In addition, infor-

mational videos (including FHWA’s case study found here: youtube.com/watch?v=UWqzmVGKDNk) were

shared to show footage of tractor-trailers maneuvering through working in-place mini roundabouts, including

snow plow operations and night-time driving.

According to Molly Kline, South Area Engineer, “This upcoming project was a great way for our team to show-

case MnDOT’s commitment to public engagement.” Overall, the most important part of navigating concerns in

any project is to listen to, respond to, and engage with the project stakeholders.

Navigating Concerns about Mini Roundabouts (continued from page 13)

www.nc-ite.org

Summer 2019

Pros:

• Smaller diameter better fits within available right-of-way

• Provides adequate gaps to access Highway 316

• Effectively slows speeds

• No lost wait times (waiting when there’s no conflicting traffic)

• Preserves option to later add bypass lane (for future capacity needs)

• Substantially shortens pedestrian crossing distances

• Crash severities are typically very low

Cons: • Newer intersection design, primarily for tractor-trailer trucks

• Slightly less available capacity than a typical roundabout

15

Missouri DOT (MoDOT) had a problem. Their intersections were getting more complex, but their traffic-

control cabinet hardware wasn’t able to support their changing needs. The existing cabinets couldn’t sup-

port more than 16 output channels to control the intricate phasing of their intersections. The solution? A 32-

channel Eagle 350 ATC cabinet.

For a recent project in St. Louis, MoboTrex supplied MoDOT with an Eagle 350 ATC cabinet to handle the

complex intersection at MO30/Gravois Avenue and Hampton Avenue/Germania Street. This intersection

includes pedestrian signals, left and right turn lanes, dedicated bike lanes, and nearby access to a bus de-

pot and several commercial busi-

nesses. MoDOT let a project to up-

grade the intersection and signalize

not just the Hampton/Germania and

Gravois crossing, but the access

point to the bus depot as well. With

all these approaches and flashing

yellow arrows included, MoDOT en-

gineers were quickly running out of

output channels to handle all the

phases they wanted to control.

MoboTrex helped MoDOT develop

specifications for a new ATC cabinet

that met their user needs and could

handle both sets of signals in a sin-

gle cabinet. The ATC cabinet stand-

ard allows for control of up to 32

output channels with a single con-

flict monitor, so it was an ideal

choice for this intersection.

This was MoDOT’s first experience with an ATC cabinet, and they were able to evaluate its effectiveness in

a live environment. This also provided their technicians with training and real-world experience with the new

cabinet architecture, as most MoDOT cabinets currently adhere to the NEMA TS2 standard.

The ATC cabinet standard was developed by a joint committee of NEMA, AASHTO, and ITE with a working

group comprised of public and private sector members. The working group used a systems engineering pro-

cess to collect feedback from the public sector members and then developed these needs into a national

standard. User needs were prioritized, including technician and public safety, ease of maintenance, increas-

ing value to end users, flexibility for innovative designs, and higher density components.

The new national ATC standard (ITE designation ATC 5301 v02) allows cabinet manufacturers more room

for innovation than ever before. The result is a cabinet architecture that includes these key design features:

In each issue, the INCITER features articles coordinated by NCITE’s advertisers. This article is a contribution from Mobo Trex.

www.nc-ite.org (Continued on page 16)

Updating ATC Cabinets in Missouri Brent Katauskas, PE | Mobo Trex

Summer 2019

Gravois Avenue & Hampton Avenue/Germania Street. Source Google

16

• High density components – more functionality in a smaller space.

• Modular assemblies – simple to expand for more inputs or outputs when needed.

• Fail-safer technology – improved safety for motorists, bicyclists, and pedestrians.

• Enhanced troubleshooting and diagnostic tools – find the problem and fix it quickly.

• Improved technician safety – remove 120VAC wherever possible and protect maintenance personnel from shock hazards.

• Increase monitoring functionality – control and monitor up to 32 output channels in a single cabinet.

• Offer standard 48VDC output option.

The ATC standard was intended to capture the best of all worlds, including features from the NEMA TS2, Cal-trans, and ITS v1 standards and combining them with more modern technology to bring the traffic cabinet into the 21st century.

As intersections become more complex, the ATC cabinet is an innovative and valuable tool that will fit well in any traffic engineer’s toolbox for future projects.

Updating ATC Cabinets in Missouri (continued from page 15)

www.nc-ite.org

Summer 2019

Eagle 350 ATC Cabinet

www.nc-ite.org

ITE LOL

Source: http://www.cartoonaday.com/

19

Summer 2019

20

New Members Sarah B. Irmen – HDR Engineering Whitney Schroeder – HDR Engineering Edward Beyo Johnson – MNSU- Mankato

Moves Joshua Palmateer – SEH formerly Alliant Engineer-ing Scott McBride – Bolton & Menk formerly MnDOT Sandra Dunmyer – Image Sensing Systems formerly Traffic Systems & Technology

Thomas R. Cook – HDR Engineering formerly

SDSU

If you or a friend has changed jobs or moved, we would like to stay in touch. Members, please update your information by visiting http://www.ite.org/membership/index.asp. To access this area, you will need to know your membership num-ber. Your “username” is your membership number, and your “password” is the first 6 letters of your last name (e.g. John-son=Johnso). Non-members please contact Morgan Hoxsie via phone (612.294.9726) or email ([email protected]) for assistance. Please provide you name, title, employer, complete street address (including mailstop, if ap-plicable), telephone number, fax number, and email address.

MEMBERSHIP UPDATE

Cortney Falero Newsletter Editor [email protected] 763.452.4806

www.nc-ite.org

Summer 2019