Evaluation of Change and Clearance Intervals Prior to the Flashing Yellow Arrow Permissive Left-Turn Indication

The objective of this research is to develop recommendations for the use of solid yellow arrow change and solid red arrow clearance intervals after a leading solid green arrow transitioning to a permissive flashing yellow arrow (FYA) or flashing red arrow (FRA) based upon their human factors and efficiency implications.  


  • English


  • Status: Active
  • Funding: $300000
  • Contract Numbers:

    Project 03-125

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway & Transportation Officials (AASHTO)

    444 North Capitol Street, NW, Suite 225
    Washington, DC  United States  20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Derr, B

  • Performing Organizations:

    University of Wisconsin-Madison

    1415 Engineering Drive
    2205 EH Madison
    Madison, WI  United States  53706
  • Principal Investigators:

    Noyce, David

  • Start Date: 20160921
  • Expected Completion Date: 20190920
  • Actual Completion Date: 0
  • Source Data: RiP Project 39946

Subject/Index Terms

Filing Info

  • Accession Number: 01568389
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 03-125
  • Files: TRB, RiP
  • Created Date: Jun 27 2015 1:00AM