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VIEW LARGER COVER

An "in-service performance evaluation" (ISPE) examines roadside safety features while roads are in service. A database of crashes is generally the minimum resource necessary for conducting an ISPE.

The TRB National Cooperative Highway Research Program's NCHRP Research Report 1010: In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data presents uniform criteria for conducting ISPEs of both permanent and temporary safety features.

Supplemental to the report are NCHRP Web-Only Document 332: Multi-State In-Service Performance Evaluations of Roadside Safety Hardware, which documents the development of the guidelines and the entire research effort; the ISPE Data Set and Analysis Template, a spreadsheet tool to aid in the calculations of each evaluation measure shown in this report and to support the documentation of an ISPE; Implementation of Research Findings and Products, a plan that identifies mechanisms and channels for implementing this research; and a presentation that summarizes the project.

RESOURCES AT A GLANCE

Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2022. In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data. Washington, DC: The National Academies Press. https://doi.org/10.17226/26751.

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Publication Info

92 pages |  8.5 x 11 |  DOI: https://doi.org/10.17226/26751

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