Support for AASHTO Committees and Councils. Highway Safety Manual Development and Roadmap

The American Association of State Highway and Transportation Officials (AASHTO) and the Transportation Research Board (TRB) Committee on Safety Performance Analysis developed a strategic plan for future editions (SPFE) of the AASHTO Highway Safety Manual (HSM) to document the process of identifying research needs, substantiating funding, tracking research progress, reviewing technical content, and finalizing an adoption process for a new edition of the HSM. Although the SPFE provides overall guidance for development of a new edition, numerous questions and research needs have been identified during the process of developing the second addition of the HSM. Early plans for HSM implementation and institutionalization, along with support from numerous stakeholders, have helped develop the state of the practice of data-driven safety analysis. Based on transportation professionals’ use of the HSM and other safety analysis guides and resources, there is an immediate need to develop a roadmap for the HSM that will build on lessons learned from the evolution to date of this field (i.e.,;; and will support expansion to a wider range of applications and users. Additionally, the roadmap could help identify the HSM community’s preference for tools and technical content to be included in the next edition of the HSM.  The objective of this project is to develop an HSM roadmap that will guide content, publication, implementation, and other aspects of the HSM to expand its use throughout the transportation facility lifecycle and to include a wider range of users and facility types.  


  • English


  • Status: Active
  • Funding: $150000
  • Contract Numbers:

    Project 20-123(17)

  • Sponsor Organizations:

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001

    American Association of State Highway and Transportation Officials (AASHTO)

    444 North Capitol Street, NW
    Washington, DC  United States  20001

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Retting, Richard

  • Performing Organizations:

    Texas A&M Transportation Institute

    Texas A&M University System
    3135 TAMU
    College Station, TX  United States  77843-3135
  • Principal Investigators:

    Dixon, Karen

  • Start Date: 20231224
  • Expected Completion Date: 20250603
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01789435
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 20-123(17)
  • Files: TRB, RIP
  • Created Date: Nov 23 2021 5:10PM