High-Speed Expressway Intersections Study of Crash Risk Factors

This proposal is to extend the recently completed Empirical Bayes analysis of expressway intersections by evaluating a number of factors to identify those that are associated with successful or unsuccessful signalization projects. This will be done by accomplishing the following: (1) Evaluate the signalization including timing, signal warrants, and auxiliary flashers (2) Evaluate the character of the intersections in terms of access density (on the side road), type and amount of adjacent development, and physical characteristics (orientation, grade, median width, elevation differences between lane groups, and curves).


  • English


  • Status: Inactive
  • Sponsor Organizations:

    Iowa Department of Transportation

    800 Lincoln Way
    Ames, IA  United States  50010
  • Performing Organizations:

    Iowa State University, Ames

    Center for Transportation Research and Education
    2711 South Loop Drive, Suite 4700
    Ames, IA  United States  50010-8664
  • Principal Investigators:

    Souleyrette, Reginald

  • Start Date: 20051101
  • Expected Completion Date: 0
  • Actual Completion Date: 20060630
  • Source Data: RiP Project 11560

Subject/Index Terms

Filing Info

  • Accession Number: 01477335
  • Record Type: Research project
  • Source Agency: Midwest Transportation Consortium
  • Files: UTC, RIP
  • Created Date: Apr 3 2013 1:01AM