Closed Circuit TelevisionArlington County, Virginia

Human Factors in the Design andOperation of Advanced Traffic

Management Centers

Introduction

Real-time traffic management is a key part of thevision of future Intelligent Transportation Systems(ITS). The ITS era is bringing advanced computerand automation technology to traffic management.Many existing Traffic Management Centers (TMCs)are expanding their roles and upgrading theircapabilities.

Mission Statement

The overall mission of the Advanced TrafficManagement System (ATMS) is to facilitate safemovement of persons and goods, with minimaldelay, throughout the roadway system network. Inorder to perform this mission, the ATMS mustpursue the following five major system objectives.

Objective 1

• Maximize the Available Capacity of Area-WideRoadway Systems

• The first objective is to promote the maximum effectivetraffic volume (vehicles and pedestrians per unit of time)for existing roadways

• Minimize the Impact of Roadway Incidents• Roadway incidents (accidents, stalls, fallen debris,

equipment malfunction) particularly during peakdemand times, may have a significant demand on traveltimes and create a threat to public safety. Reducing theeffects of these incidents requires ATMS involvementon two fronts; reducing the likelihood of incidentsoccurring and minimizing the delays associated withincidents that do occur.

Objective 2

• Assist in the Provision of Emergency Services• Interaction with emergency service providers may

include incident detection and verification, incidentnotification, coordination of responses when multipleservices are needed, and modification of systemparameters to improve speed or accuracy of anemergency response. TMC support for emergencyservices is not limited to roadway incidents. It may beneeded in any situation in which the roadway is used byemergency responders (e.g., clearing highwaysbetween a disaster site and hospitals).

Objective 3

• Contribute to the Regulation of Demand• This objective requires motivating drivers to

reschedule/reroute trips or to take alternative modes oftransportation. Regulation of demand may be short orlong term, reactive or proactive. It involves cooperativeefforts with the media and other transportationagencies.

Objective 4

• Create and Maintain Public Confidence in theATMS

• The ATMS must be perceived as providingaccurate and useful information to the public.Public confidence in the ATMS must beassessed continuously. Public relations effortsmay be conducted in order to reinforce positivepublic perception of the ATMS.

Objective 5

• Management Tool For Community Emergency• Monitor Roadway System• Receive External Information• Receive Requests for Information• Select Traffic Management Tactics• Determine System Welfare Needs• Assess Anomalies• Select ATMS Responses to Incidents• Conduct Simulations to Support Transportation

Planning

Top Level Functions

• Assess Public Confidence• Influence Traffic• Issue Requests• Provide Information• Maintain Records• Provide Training• Develop Traffic Management Plans• Perform Administrative Duties• Provide Interagency Coordination

Top Level Functions(continued)

ECCPolice

Fire

VDOT Cable TV Traffic Eng.Field

Operations

TMCArlington County

SUBTOTAL1 Project Management $13,012.642 Requirements Definition $20,924.403 Exisitng Communications Infrastructure Assessment and Alternatives Analysis $8,398.164 Technology Demonstration $2,636.985 System Design (Preliminary & Final) $26,268.406 Engineering Estimate $8,955.287 Quality Assurance $9,899.60

$90,095.46

TASK

TOTAL

PROJECT ENGINEERING ESTIMATE

CLIENT: Arlington County Department of Public WorksPROJECT TITLE: Arlington County CCTV

PROJECT NUMBER: TBDCONTRACT NUMBER: TBD

PERIOD-OF-PERFORMANCE: June 30,2002-December 31,2002PROJECT MANAGER (ARINC): Bradley Flynt

PROJECT MANAGER (CLIENT): Terry Bellamy

TAB CONTENTSARLINGTON COUNTY, VA CCTV Project Summary Information

TASK 1 Project ManagementTASK 2 Requirements DefinitionTASK 3 Exisitng Communications Infrastructure Assessment and Alternatives AnalysisTASK 4 Industry Research and Technology DemonstrationTASK 5 System Design (Preliminary & Final)TASK 6 Engineering EstimateTASK 7 Quality Assurance

SUMMARY Project Engineering Estimate Summary

CLIENT: Arlington County Department of Public WorksPROJECT TITLE: Arlington County CCTV

PROJECT NUMBER: TBDCONTRACT NUMBER: TBD

PERIOD-OF-PERFORMANCE: April 2, 2001 - December 31, 2001PROJECT MANAGER : TBD

PROJECT MANAGER (CLIENT): Terry Bellamy

TAB CONTENTSARLINGTON COUNTY, VA CCTV Project Summary Information

TASK 1 Project ManagementTASK 2 MaterialsTASK 3 Field InstallationTASK 4 Traffic Control Center /Video Wall ECC/Traffic Engineering

SUMMARY Project Engineering/Construction Summary

TOTAL ESTIMATE $700,000.00

FUNDING VDOT -CMAQ FUNDING $438,000.00DEVELOPER CONTRIBUTION $ 50,000.00UNFUNDED $212,000.00

Camera Locations

• Columbia Pike @ Courthouse Road(Route 244)

• Columbia Pike @ S. Glebe Road• Columbia Pike @ S. George Mason

Drive• Columbia Pike @ S. Carlin Springs

Road (Route 201)• S. Glebe Road @ Walter Reed Drive• S. Glebe Road @ S. 27th Street• Route 50 @ Patrick Henry Drive• Route 50 @ Henderson Road• Route 50 @ S. Glebe Road (Route

120)• Route 50 @ S. Fillmore Street

• Wilson Blvd. @ N. Glebe Road• Wilson Blvd. @ N. Randolph Street• Fairfax Dr. @ N. Glebe Road• Fairfax Dr. @ N. Randolph Street• N. Glebe Road @ Washington Blvd.

(Route 27)• Wilson Blvd. @ Washington Blvd.

(Route 27)• N. Fairfax Drive @ N. Fort Meyer

Drive• Wilson Blvd. @ N. Lynn Street• Lee Highway (EB) Route 29 @ N.

Lynn Street

Camera Locations

• Lee Highway (Route 29) @ N. VeitchStreet

• Old Dominion Drive @ MilitaryRoad/Quincy Street

• Glebe Road @ Chain Bridge Road• Lee Highway @ Fairfax Drive• N. Glebe Road @ N. Old Dominion

Drive• Lee Highway @ N. Glebe Road• Washington Blvd. @ Sycamore

Street• Lee Highway @ Harrison Street• Glebe Road @ N. Quincy Street• Arlington Blvd. @ Carlin Springs

Road

• Columbia Pike @ Walter Reed Drive• S. Fern Street @ 15th Street• Wilson Blvd. @ McKinley Road• Walter Reed Drive @ Route 7 Potomac Yards (Developer Funded)• Route 1 @ S. Glebe Road• Route 1 @ S. 23rd Street• Crystal Drive @ 27th Street• Crystal Drive @ 12th Street• 33rd Street @ Potomac Avenue