Traffic Signal Control Enforcements Under Vehicle Infrastructure Integration Systems

A recent study conducted by the National Transportation Operations Coalition (NTOC) scored the overall operation of the total of 265,000 traffic signals in the United States at a D-. A self assessment completed by 378 agencies in the United States reported unnecessary delay, increased fuel consumption, and increased pollution as a result of inefficient signal operation. Traffic signal systems are currently operated using a very archaic traffic detection simple binary logic (vehicle presence/non presence information). The logic was originally developed to provide input for old electro-mechanical controllers that were developed in the early 1920's [2], and was sufficient for that purpose only. Many decades later, both the controller and detection technology have evolved significantly. Vehicle infrastructure integration (VII) promises to "bridge the gap" between the infrastructure and individual drivers. VII can offer significant benefits to traffic operations and control. Nevertheless, basic research in this area is still lacking, and does not provide enough guidance on how to use the existing system to its fullest potential. There is a wide range of underutilized control capabilities, including advanced traffic signal timing, the use of second-by-second vehicle location data to estimate approach delays and queue size information. Currently, only vehicle presence is provided to and used by the existing controllers [3-5]. There is therefore a need to investigate the potential of using VII data to enhance traffic signal control capabilities. Furthermore, in conjunction with traffic signal control there is a need to reduce the traffic demand on a network. One of these approaches includes the use of roadway tolling. VII again can assist in the charging of roadway usage given that the location of vehicles will be known to the second-by-second level. The objectives of the proposed research effort are: a. Research and investigate the potential to utilize VII data to characterize system operation and estimate system-wide measures of performance. b. Develop advanced signal timing procedures that can capitalize on VII data and enhance the operations of traffic signal system operations


    • English


    • Status: Active
    • Contract Numbers:



    • Sponsor Organizations:

      Virginia Transportation Research Council

      530 Edgemont Road
      Charlottesville, VA  United States  22903
    • Project Managers:

      McGhee, Catherine

    • Performing Organizations:

      Virginia Polytechnic Institute and State University, Blacksburg

      Virginia Tech Transportation Institute
      3500 Transportation Research Plaza
      Blacksburg, VA  United States  24061
    • Principal Investigators:

      Rakha, Hesham

    • Start Date: 20081201
    • Expected Completion Date: 0
    • Actual Completion Date: 20110531
    • Source Data: RiP Project 22490

    Subject/Index Terms

    Filing Info

    • Accession Number: 01462076
    • Record Type: Research project
    • Source Agency: Mid-Atlantic Universities Transportation Center
    • Contract Numbers: DTRT07-G-0003, MAUTC-2008-02
    • Files: UTC, RiP, STATEDOT
    • Created Date: Jan 3 2013 1:57PM