National Guidance for Defining Acceptable Roadside Hardware Field Performance through In-Service Performance Evaluations (ISPEs)

One reoccurring theme in re-writing crash test and evaluation procedures over the last 40 years is the recommendation to conduct in-service performance evaluations (ISPEs) of roadside safety features. The laboratory performance of roadside safety hardware is tested and evaluated using criteria published in MASH (define). The site location and installation of roadside safety hardware is guided by criteria published in the AASHTO Roadside Design Guide (RDG). ISPE criteria has only just become available under NCHRP Project 22-33, “Multi-State In-Service Performance Evaluations of Roadside Safety Hardware” Guidance is needed, at the national level, for defining acceptable field performance. The objective of this research is to develop guidance that defines acceptable field performance thresholds for roadside hardware. Performance thresholds defining acceptable performance should be developed for each of the evaluation criteria established under the NCHRP Project 22-33. Guidance for the use of ISPEs for establishing or updating existing guidelines and for establishing crashworthiness should also be developed. The research will produce information to better understand and more consistently evaluate the field performance of roadside hardware.


  • English


  • Status: Proposed
  • Funding: $400000
  • Contract Numbers:

    Project 22-58

  • 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:

    Barcena, Roberto

  • Start Date: 20220607
  • Expected Completion Date: 0
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01847443
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 22-58
  • Files: TRB, RIP
  • Created Date: May 27 2022 11:27AM