Update of Crash Modification Factors for the Highway Safety Manual

The objectives of this research are to: (a) Assess the current criteria and existing process for evaluating and identifying the quality of crash modification factors (CMFs) for appropriate use with the highway safety manual (HSM). (b) Develop proposed revisions to the criteria and process, including how existing and new CMFs may be incorporated in the HSM. Provide guidance for practitioner application of the revised process. (c) Apply the evaluation criteria to identify and assess CMFs and develop a list of appropriate CMFs for the HSM. CMFs to be studied are those listed in the FHWA CMF Clearinghouse. The research results are intended for possible inclusion in a future second edition of the HSM.


  • English


  • Status: Active
  • Funding: $845000
  • Contract Numbers:

    Project 17-72

  • 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 North Carolina, Chapel Hill

    Chapel Hill, NC  United States  27514
  • Principal Investigators:

    Srinivasan, Raghavan

  • Start Date: 20150831
  • Expected Completion Date: 20201231
  • Actual Completion Date: 0
  • Source Data: RiP Project 37544

Subject/Index Terms

Filing Info

  • Accession Number: 01543358
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 17-72
  • Files: TRB, RIP
  • Created Date: Nov 13 2014 1:01AM