Performance and Safety of the US-23 Flex Route

MDOT has built its first Flex Route which is intended to reduce congestion and improve safety. It includes actively managing lanes of traffic and temporarily using the inside shoulder lane during peaks or other times when traffic is backed up due to incidents or other events. MDOT needs to understand what the performance and safety impacts of the Flex Route are. MDOT needs to understand how the traveling public is responding to the Flex Route and following the directions provided. Many improvements were made to US-23 that were not related to the Flex Route and MDOT would need to reasonably understand which changes were attributable to the Flex Route. The Flex Route increases capacity and could impact traffic downstream and MDOT needs to understand if it did and to what degree. The Flex Route also has some unique challenges for enforcement agencies which need to be identified for possible adjustments in the future.


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    • Status: Active
    • Contract Numbers:


    • Sponsor Organizations:

      Michigan Department of Transportation

      Murray Van Wagoner Building
      425 West Ottawa, P.O. Box 30050
      Lansing, MI  United States  48909
    • Performing Organizations:

      Michigan State University, East Lansing

      Department of Civil & Environmental Engineering
      Institute for Community Development
      East Lansing, MI  United States  48824-1226
    • Start Date: 20190301
    • Expected Completion Date: 20221130
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01776462
    • Record Type: Research project
    • Source Agency: Michigan Department of Transportation
    • Contract Numbers: 2019‐0289
    • Files: RIP, STATEDOT
    • Created Date: Jul 13 2021 2:59PM