Full ITS deployment in Seattle projects personal travel time reductions of 3.7 percent for drivers and 24 percent for transit users.

The projected results of full ITS deployment in a large metropolitan area.

May 2005
Seattle,Washington,United States

Summary Information

The Federal Highway Administration initiated a study to explore the benefits and costs of fully deploying operational strategies and integrating ITS in the large metropolitan area of Seattle. The strategies included in Seattle's Full Operations and ITS Deployment Scenario were identified by consulting with local agencies to identify the overall ITS program planned through the next 25 years. The benefits are contingent on complete deployment of the full operations and ITS deployment scenario. The selected strategies are listed in the following table.

Arterial Traffic Management SystemsCentral Control Signal Coordination
Emergency Vehicle Signal Preemption
Transit Vehicle Signal Priority
Freeway Management SystemsCentral Control Ramping Metering
Transit ManagementFixed-Route Automated Scheduling and Automatic Vehicle Location
Fixed-Route Security Systems
Electronic Transit Fare Payment
Incident Management SystemsIncident Detection, Verification, Response, and Management
Emergency Management SystemsEmergency Vehicle Control Service
Emergency Vehicle AVL
Traveler InformationPhone- and Web-Based Traveler Information System
Kiosk-Based Traveler Information
Highway Advisory Radio
Dynamic Message Signs
Crash Prevention and SafetyRailroad Crossing Monitoring Systems
Commercial Vehicle OperationsWeigh-in-Motion and Safety Information Exchange
Combination Screening and Clearance
Supporting DeploymentTraffic Management Center
Transit Management Center
Emergency Management
Information Service Provider Center
Closed Circuit TV and Loop Detectors

  • Personal travel times reduced by an average of more than 120,000 hours daily in the Seattle area with full implementation of operations and ITS strategies.
  • The average daily reduction of 3.7 percent amounts to an average of more than eight hours saved per resident in the area annually.
  • The results of full deployment were found to be more effective reducing travel times during congested periods.
  • Travel times in the afternoon commute period were reduced by 6.1 percent versus a reduction of 0.5 percent during the less congested, non-commute period.
  • Additionally, transit riders are expected to experience greater travel time improvements, averaging more than six minutes per trip during the afternoon commute, an approximate 24 percent decrease in their average trip time.

Benefit Comments

No comments posted to date

Comment on this Benefit

To comment on this summary, fill in the information below and click on submit. An asterisk (*) indicates a required field. Your name and email address, if provided, will not be posted, but are to contact you, if needed to clarify your comments.


Benefits and Costs of Full Operations and ITS Deployment: A 2003 Simulation for Seattle

Published By: United States Department of Transportation Federal Highway Administration ITS Joint Program Office

Source Date: May 2005

EDL Number: 13977

Other Reference Number: Report No. FHWA-JPO-04-033


Average User Rating

0 ( ratings)

Rate this Benefit

(click stars to rate)

Goal Areas


Typical Deployment Locations

Metropolitan Areas


coordinated signals, signal coordination, centralized signal control, signal synchronization, traffic signals, advanced signal control, signal timing optimization, coordinated signal control, advanced signal controller, traffic signal retiming, retiming, automated vehicle location, computer aided dispatch, automatic vehicle locator, AVL, CAD, AVL/CAD, CCTV, closed circuit television cameras, security, smart cards, electronic fare payment, SmartCard, smart card, SmartCards, ramp meters, travel time, freeway management, transit, arterial management

Benefit ID: 2015-01027