Integrating Safety in Developing a Variable Speed Limit System

Variable speed limit (VSL) systems have been widely used in the U.S. and European countries. They represent a vital component of an Active Traffic Management System (ATMS), which has been suggested by the Federal Highway Administration (FHWA) as the next step in tackling the U.S. freeway congestion problem. VSL systems have been employed nationwide on freeways to: 1) reduce recurrent congestion; 2) address adverse weather impacts on freeways; 3) improve traffic safety; and 4) improve air quality. This research will be one of the first attempts to develop a VSL algorithm based on real-time safety risk estimation.


  • English


  • Status: Completed
  • Contract Numbers:



  • Sponsor Organizations:

    Florida Department of Transportation

    605 Suwannee Street
    Tallahassee, FL  United States  32399-0450

    Colorado Department of Transportation

    4201 East Arkansas Avenue
    Denver, CO  United States  80222

    Research and Innovative Technology Administration

    University Transportation Centers Program
    Washington, DC  United States  20590
  • Performing Organizations:

    University of Central Florida, Orlando

    P.O. Box 25000
    Orlando, FL  United States  32816
  • Principal Investigators:

    Abdel-Aty, Mohamed

  • Start Date: 20120112
  • Expected Completion Date: 0
  • Actual Completion Date: 20140131
  • Source Data: RiP Project 33605

Subject/Index Terms

Filing Info

  • Accession Number: 01640932
  • Record Type: Research project
  • Source Agency: National Center for Transportation Systems Productivity and Management
  • Contract Numbers: DTRT12GUTC12, A0-UTC-001
  • Files: UTC, RiP
  • Created Date: Jul 13 2017 1:02AM