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.
National Academies of Sciences, Engineering, and Medicine. 2024. Data Collection Practices for Use with In-Service Performance Evaluations. Washington, DC: The National Academies Press.
Sign in to access your saved publications, downloads, and email
preferences.
Former MyNAP users: You'll need to reset your password on your first
login to MyAcademies. Click "Forgot password" below to receive a reset
link via email. Having trouble?
Visit our FAQ page
to contact support.
Members of the National Academy of Sciences, National Academy of
Engineering, or National Academy of Medicine should log in through their
respective Academy portals.
Register
Register
Thank You
Thank You
Thank you for creating a MyAcademies account!
Enjoy free access to thousands of National Academies' publications, a
10% discount off every purchase, and build your personal library.
Forgot Password
Forgot Password
Enter the email address for your MyAcademies (formerly MyNAP) account to
receive password reset instructions.
Reset Requested
Reset Requested
We sent password reset instructions to
your email
. Follow the link in that email to create a new password. Didn't receive
it? Check your spam folder or
contact us
for assistance.
We sent a verification link to your email. Please check your inbox (and
spam folder) and follow the link to verify your email address. If you
did not receive the email, you can request a new verification link below