Data Collection Practices for Use with In-Service Performance Evaluations

By: National Academies of Sciences, Engineering, and Medicine and Transportation Research Board and National Cooperative Highway Research Program and Ethan M. Ray and Christine E. Carrigan

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Synopsis: Crash test evaluations of roadside hardware have long been recognized as an initial assessment of hardware performance. The proper installation and maintenance of roadside hardware allows for the hardware to perform as designed and evaluated when impacted within the performance limits of the hardware. NCHRP Web-Only Document 407: Data Collection Practices for Use with In-Service Performance Evaluations, from TRB’s National Cooperative Highway Research Program, develops a transportation agency data collection methodology and associated guidelines to support individual investigative in-service performance evaluations (ISPEs), ISPE Programs, and asset management of roadside safety hardware. Supplemental to the document are an ISPE Manual (Appendix A) and an implementation plan.