HIGHWAY SAFETY MANUAL

The first edition of the AASHTO Highway Safety Manual (HSM) was published in 2010. The HSM provides detailed processes for consistently quantifying the safety impacts of proposed improvements. The Nevada Project Safety Process (PSP) is a guide for the incorporating these processes into all projects in Nevada. The purpose of the PSP is to establish a consistent process of quantifying the expected crash impacts for future transportation improvements based on the HSM to the extent practicable. This process is applicable to all projects that impact roadway geometry, not just safety projects.

Local Examples/Pilot Projects

Sample Road Safety Assessment (Summary)

US 95 at SR 117 Roundabout (Summary) (Full Report)

Lake Mead Boulevard (SR 147) MP 7 to MP 14 30% Design Alternatives (Summary) (Full Report)

I-15 Dry Lakes Design Exception Lane Narrowing (Summary) (Full Report)

US 93 North of Lages – Jct I, II, and III (Summary) (Full Report)

SR 160, SR 159 to Mountain Spring (Summary) (Full Report)

I-580, Washoe Valley to Carson City (Summary) (Full Report)

Nevada HSM Resources

Benefit Cost Ratio (BCR) Spreadsheet

Nevada Approved Crash Modification Factors (Under development)

National HSM Resources

AASHTO HSM Website

FHWA HSM Page

IHSDM

Crash Modification Factor Clearinghouse

HSM Resource Matrix

Training

Practitioners’ Guide

IHSDM Training

National Highway Institute

Public Forum on HSM

Contacts

Email zerofatalitiesnv@kimley-horn.com with any questions or comments.