The Lead States Initiative for Implementing the HSM (NCHRP 17-50) is developing
a HSM User Guide, which will be available in the near future, to show practical
approaches to HSM implementation. Following are brief descriptions of what they
The HSM Implementation Guide for Managers
– Outlines what the HSM is (and is not), how it relates to other core technical
documents and policies, and the potential benefits of its use particularly improvements
in the safety performance of the highway system.
Integrating the HSM into the Project
Development Process – This guide provides practitioners with examples and
ideas for integrating safety performance measures into the project development process,
including planning, alternatives development and analysis, design, operations, and
If you are using the HSM and would like the information to be posted on the HSM
web site, send your information to Kelly Hardy at AASHTO, firstname.lastname@example.org.
Click on the states to see how they used the HSM.