This report summarizes the results of the National Signal Timing Organization Project initiated by the Federal Highway Administration as a fuel conservation effort. It is estimated that approximately one-fifth of the total U.S. daily oil consumption is used by vehicles traveling in urban areas through signalized intersections and that a significant portion of this is wasted due to poor traffic signal timing. The objectives of this project are: 1) to establish credible data on the effectiveness of signal timing optimization; 2) to make signal timing optimization projects easier to do; and 3) to define the resources (cost, level of staff, computer, etc.) required to undertake a signal timing optimization project, so that traffic engineers and administrators can more effectively budget for this activity. The project consisted of the development of the TRANSYT-7F signal timing optimization program User's Manual, and training course, and application of the program in 11 cities nationwide to evaluate the effectiveness of the poptimized signal timing plans and to collect data on the needed resources. TRANSYT (Traffic Network Study Tool) is a tool for traffic engineers who desire to optimize their coordinated signal systems to reduce delay, stops, and fuel consumption. The TRANSYT program was developed in the United Kingdom and has been extensively and successfully used both in Europe and in the U.S. Results show that TRANSYT-7F is a valuable tool for signal timing optimization projects and can lead to significant reductions in vehicle delay, vehicle stops, and fuel consumption. (FHWA)

  • Corporate Authors:

    University of Florida, Gainesville

    Transportation Research Center, P.O. Box 116580
    Gainesville, FL  United States  32611-6580

    Federal Highway Administration

    Office of Safety and Traffic Operations, 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Publication Date: 1982-5

Media Info

  • Pagination: 50 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00395193
  • Record Type: Publication
  • Files: TRIS, USDOT
  • Created Date: Jun 30 1985 12:00AM