Design Optimal and Effective Queue End Detection and Notification: Development of a Low-Cost Work Zone Queue Warning Systems in Iowa

On average, 105 fatal front-to-rear crashes occur in American work zones each year, representing nearly 20% of all work zone fatalities. Most often, the incidents are the result of a high-speed vehicle colliding with a vehicle stopped or slowed by work zone congestion. A number of intelligent transportation system (ITS) systems have been developed to provide back-of-queue warning, but historically the cost and complexity of these systems has limited their use. Even when back-of-queue warning is deployed, the spatial coverage is sometimes inadequate due to the highly variable queue lengths that are typical for most sites. We propose to field-test a low cost system designed to reduce costs and simplify deployment. If successful, this system could allow back-of-queue warning to be installed wherever queuing is anticipated, even for short-term projects. Its modular design will allow the queue warning to be extended as far upstream as necessary to provide ample driver notification in high, medium, and low demand situations.


    • English


    • Status: Active
    • Contract Numbers:

      TPF-5(295) Contract # 17953

    • Sponsor Organizations:

      Smart Work Zone Deployment Initiative

      ,   United States 

      Iowa Department of Transportation

      800 Lincoln Way
      Ames, IA  United States  50010
    • Managing Organizations:

      Iowa Department of Transportation

      800 Lincoln Way
      Ames, IA  United States  50010
    • Project Managers:

      Sprengeler, Dan

    • Performing Organizations:

      University of Wisconsin, Madison

      Department of Civil and Environmental Engineering
      1415 Engineering Drive
      Madison, WI  United States  53706
    • Principal Investigators:

      Chitturi, Madhav

    • Start Date: 20160615
    • Expected Completion Date: 20181231
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01595717
    • Record Type: Research project
    • Source Agency: Iowa Department of Transportation
    • Contract Numbers: TPF-5(295) Contract # 17953
    • Files: RiP, STATEDOT
    • Created Date: Apr 5 2016 8:57AM