SPR-4104: Predicting Impact to Traffic Safety and Mobility of Change in Speed Limits for Indiana Freeways

The study will estimate the safety and mobility effects of removing the differential speed limits on rural freeways and raising the speed limits on urban freeways from 55 mph to 60 or 65 mph. It is also possible that the research will confirm the current policy of differential speed limits on rural freeways and the single speed limit on urban freeways as optimal.


    • English


    • Status: Completed
    • Funding: $148785
    • Contract Numbers:


    • Sponsor Organizations:

      Purdue University/Indiana Department of Transportation JHRP

      Purdue University
      1284 Civil Engineering Building, Room 4154
      West Lafayette, IN  United States  47907-1284
    • Principal Investigators:

      Tarko, Andrew

    • Start Date: 20160815
    • Expected Completion Date: 0
    • Actual Completion Date: 20190414

    Subject/Index Terms

    Filing Info

    • Accession Number: 01609829
    • Record Type: Research project
    • Source Agency: Indiana Department of Transportation
    • Contract Numbers: SPR-4104
    • Files: RIP, STATEDOT
    • Created Date: Sep 2 2016 2:00PM