Supply-Side Management of Auto Traffic

Many traffic signals frequently experience oversaturated conditions. Such conditions cause significant delay and queue backups. When traffic signals are closely spaced, queues from downstream signals can back up to upstream signals. Such a scenario can result in starvation which is a phenomenon when queues from a downstream bottleneck prevent full utilization of upstream green phases This project will entail synchronizing green phases across neighboring traffic signals to the backward waves that propagate through queues. The goal is to ensure that green phases are displayed only after queues recede on street segments downstream. In this way, traffic movements are not blocked when they receive green signals.


  • English


  • Status: Active
  • Funding: $130,000
  • Contract Numbers:



  • Sponsor Organizations:

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590
  • Managing Organizations:

    University of South Florida, Tampa

    Center for Urban Transportation Research
    3650 Spectrum Boulevard
    Tampa, FL  United States  33612-9446
  • Project Managers:

    Li, Xiaopeng

  • Performing Organizations:

    Texas A&M Transportation Institute (TTI)

    400 Harvey Mitchell Parkway South
    Suite 300
    College Station, TX  United States  77845-4375
  • Principal Investigators:

    Sunkari, Srinivasa

  • Start Date: 20200901
  • Expected Completion Date: 20220228
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers Program

Subject/Index Terms

Filing Info

  • Accession Number: 01751329
  • Record Type: Research project
  • Source Agency: National Institute for Congestion Reduction
  • Contract Numbers: 69A3551947136,, 79070-00-B
  • Files: UTC, RIP
  • Created Date: Sep 4 2020 3:05PM