Assessing System Performance of the Michigan Trunkline: Measures and Analytical Procedures for Planning and Operations

Since 1961, the Michigan Department of Transportation had been conducting yearly Sufficiency Reviews of the trunkline system, which included a systematic evaluation of the condition and relative operational performance of individual highway segments. This process produced a yearly Sufficiency Report that was a single-source document containing a variety of condition and operational data. The information found in this Report was intended to serve as an initial planning tool for MDOT staff and management to guide development of more comprehensive studies. As part of an MDOT Systems and Process Improvement Review (2010-2014), it was determined that the 2015 Sufficiency field reviews would be the last to be completed. Thus, the Sufficiency Program was retired after the release of the 2015 Report, with most data items provided by this program to be accessible in the future from various sources within MDOT. Two data items that were part of the Sufficiency Program that were not designated as having an alternate source were the “Capacity Volume” and “Level of Service” metrics. Internal MDOT “customers” continue to utilize the values provided in the 2015 Sufficiency Report, which are quickly becoming outdated. A review of past practices and recommendations for moving forward, based on MDOT staff needs, is critical for maintaining current and future trunkline condition assessment capabilities for planning and operational analysis purposes.


  • English


  • Status: Completed
  • 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: 20200801
  • Expected Completion Date: 20220731
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01776461
  • Record Type: Research project
  • Source Agency: Michigan Department of Transportation
  • Contract Numbers: 2020‐0783
  • Files: RIP, STATEDOT
  • Created Date: Jul 13 2021 2:58PM