Establishing Comprehensive Manual on Assessing Safety Hardware (MASH) Compliance for Roadside Safety Systems in Texas

Since the 1940s, the United States has been crash testing highway safety appurtenances. National guidelines for testing roadside appurtenances originated in 1962. Guidelines for testing and evaluating the impact performance of roadside safety features are periodically updated to stay current with improvements in technology and changes in the vehicle fleet and impact conditions. In 2009, the American Association of State Highway and Transportation Officials (AASHTO) published a document, entitled Manual for Assessing Safety Hardware (MASH), which supersedes the previous crash test and evaluation guidelines. Changes incorporated into MASH include new design test vehicles, revised test matrices, and revised impact conditions. A MASH implementation agreement was jointly developed and adopted by the Federal Highway Administration (FHWA) and AASHTO. It establishes various implementation dates for different categories of roadside safety features. On projects let after the specified dates, only MASH compliant hardware is eligible for new installations on the National Highway System (NHS). In response to the implementation requirements, the Texas Department of Transportation’s Bridge, Design, Maintenance, and Traffic Operations Divisions reviewed their standards for roadside safety devices and identified those devices that require testing and evaluation to assess MASH compliance. A total of 36 roadside safety systems will be crash tested in accordance with MASH criteria in three phases over a three-year period.


  • English


  • Status: Active
  • Contract Numbers:


  • Sponsor Organizations:

    Texas Department of Transportation

    125 E. 11th Street
    Austin, TX  United States  78701-2483
  • Project Managers:

    Odell, Wade

  • Performing Organizations:

    Texas Transportation Institute

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

    Bligh, Roger

  • Start Date: 20170515
  • Expected Completion Date: 20191231
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01648555
  • Record Type: Research project
  • Source Agency: Texas Department of Transportation
  • Contract Numbers: 0-6946
  • Files: RiP, STATEDOT
  • Created Date: Oct 18 2017 3:50PM