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🏛️Federal & Industry Standards
Highway Safety Manual (HSM)
WebNorth Dakota Department of Transportation (NDDOT)2020 Standard Specifications
The HSM provides analytical tools and methods for measuring road safety performance, predicting crash frequency and severity, and evaluating the safety effectiveness of countermeasures. It supports data-driven safety analysis required by federal performance management rules.
Published by AASHTO. 2nd Edition, 2024.
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