Highway Safety Manual in States II -- Freeway/Software

The American Association of State Highway and Transportation Officials (AASHTO) is preparing to release a revision to the Highway Safety Manual (HSM) that includes models for freeway segments, speed-change lanes and interchanges. Select models that are relevant to Mid-America Transportation Center (MATC) states will be calibrated using local sites and local crash data. The calibration of such models will ensure that they reflect local driver population, conditions and environment. The HSM has a related software package, the Safety Analyst (SA). This software will be investigated for the generation of the annual needs list (high-severity facilities). There have been some facilities that are unique to the MATC states that do not have HSM models. Two examples are the diverging diamond (or double-crossover) and the J-turn. This project will also develop Safety Performance Functions for these innovative geometric designs that are designed to reduce severe crashes.


    • English


    • Status: Active
    • Contract Numbers:


    • Sponsor Organizations:

      Research and Innovative Technology Administration

      University Transportation Centers Program
      1200 New Jersey Avenue
      Washington, DC  United States  20590
    • Performing Organizations:

      University of Missouri, Columbia

      Columbia, MO  United States  65211
    • Principal Investigators:

      Nemmers, Charles

      Edara, Praveen

      Sun, Carlos

    • Start Date: 20130701
    • Expected Completion Date: 0
    • Actual Completion Date: 20141231
    • Source Data: RiP Project 34780

    Subject/Index Terms

    Filing Info

    • Accession Number: 01487954
    • Record Type: Research project
    • Source Agency: Mid-America Transportation Center
    • Contract Numbers: DTRT12-G-UTC07
    • Files: UTC, RiP
    • Created Date: Jul 24 2013 1:01AM