U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
HSM.
Introduction to the HSM Video produced by AASHTO.
FHWA Crash Modification Factors Clearinghouse.
FHWA, 2011. HSM Training Guide, Federal Highway Administration: Office of Safety.
NCHRP Synthesis 316, Design Exception Practices.
NCHRP Research Results Digest 306, Identification of Liability-Related Impediments to Sharing Section 409 Safety Data Among Transportation Agencies and A Synthesis of Best Practices.
You will need the Adobe Reader to view the PDFs on this page.