Support for AASHTO Committees and Councils. Support for AASHTO Committees and Councils

The American Association of State Highway and Transportation Officials (AASHTO) Manual for Assessing Safety Hardware (MASH) is the latest in a series of documents that provides guidance on testing and evaluation of roadside safety features. The implementation of MASH has been a challenging mission for departments of transportations (DOTs). It has cost the nation tens of millions of dollars. The technology trends and the rapid transformation to electric vehicles place the nation at the cusp of a new era for transportation with big challenges, and the bridge community is anticipating the reevaluation of the crash testing criteria for bridge railing to ensure safety with the new fleet composition. This will be a huge cost to state DOTs. A roadmap for DOTs and other transportation agencies needs to be developed to accommodate this transformation in a timely manner and with a more cost effective solution than the transition to MASH. One of the most expensive and time-consuming pieces of the current process is building full scale test sections and performing the actual crash tests. Often, multiple crash tests are required for a particular solution.   The objectives of this project are to (1) explore and articulate the impact of future transformations to the vehicle fleet on the bridge railing MASH requirements, and (2) develop a roadmap for the AASHTO Committee on Bridges and Structures to ensure the safety and support this transformation in a cost effective manner.   The road map should include, but not be limited to the following: a.) Knowledge gaps in the computer simulations and potential research projects to address them. b). Evaluation of bridge railings to determine the reliability of the computer simulations for the various families of bridge rail. c.) An evaluation of Federal and State regulations and specifications to allow acceptance without full scale crash testing. d.) Recommendations on where best to house data and information on bridge railing. This would include crash test reports, computer models, guidance documents, etc. e.) Recommended steps necessary to move from the current process for accepting bridge railing systems to the future state where full scale crash testing is not required. f.) A discussion of stochastic/probabilistic methods for using computer simulations. g.) A plan to establish a national clearinghouse for crash testing data. h.) A stakeholder collaboration plan


  • English


  • Funding: $150,000
  • Contract Numbers:

    Project 20-123(16)

  • Sponsor Organizations:

    National Cooperative Highway Research Program

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

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway and Transportation Officials (AASHTO)

    444 North Capitol Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Abu-Hawash, Ahmad

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

Subject/Index Terms

Filing Info

  • Accession Number: 01788062
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 20-123(16)
  • Files: TRB, RIP
  • Created Date: Nov 15 2021 3:28PM