Extension of Signal Timing Optimization with Consideration of Environmental and Safety Impacts

Transportation agencies are increasingly realizing the importance of performance measurement and management. However, the main performance measures used in assessment and optimization of signal timing have been mobility measures (such as travel time and/or delays), with limited consideration of environmental and safety impacts. Consideration of these measures is important, particularly with the increased emphasis on performance measurement and management of transportation systems. Performance measurement requires the consideration of a wide array of measures; which should be mapped to agency goals and objectives, and to identified issues associated with the region or specific system under consideration. The STRIDE 2013-022S research project has been conducted to evaluate, develop, and recommend signal timing methods for simultaneous assessment of environmental and safety performance impacts, in combination with mobility measures. The project identified and developed relationships to estimate pollutant emissions and crash rates as functions of macroscopic measures of urban streets that can be derived from macroscopic analysis and simulation of these streets. Recently, the Florida International University (FIU) research team, as part of an Florida Department of Transportation (FDOT) project that was used as a match to project STRIDE 2013-022S, develop methods to estimate mobility measures of turning movements in real-time based on automatic vehicle rematching or vehicle tracking technologies. This extension to STRIDE project 2013-022S is proposed to combine the above two efforts to allow the estimation of emission and safety measures based on the real-time mobility measures estimated utilizing automatic vehicle rematching and/or vehicle tracking technologies. In addition, an extension will be made of the safety model identified in the earlier version of the project to develop a new model based on more microscopic relationships of traffic flow.


  • English


  • Status: Completed
  • 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:

    Southeastern Transportation Research, Innovation, Development and Education Center (STRIDE)

    University of Florida
    365 Weil Hall
    Gainesville, FL  United States  32611
  • Project Managers:

    Kline, Robin

  • Performing Organizations:

    Florida International University, Miami

    University Park, Room P.C. 539
    Miami, FL  United States  33199-0000
  • Principal Investigators:

    Hadi, Mohammed

  • Start Date: 20160315
  • Expected Completion Date: 20161231
  • Actual Completion Date: 20170616
  • USDOT Program: University Transportation Centers

Subject/Index Terms

Filing Info

  • Accession Number: 01598474
  • Record Type: Research project
  • Source Agency: Southeastern Transportation Research, Innovation, Development and Education Center (STRIDE)
  • Files: UTC, RiP
  • Created Date: May 2 2016 10:22AM