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AASHTO HSM-1
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AASHTO HSM-1 Highway Safety Manual, First Edition, with 2014 Supplement and 2016 Errata
standard by American Association of State and Highway Transportation Officials, 08/01/2010
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Includes the 2014 Supplement and 2016 ErrataThe Highway Safety Manual was developed to help measurably reduce the frequency and severity of crashes on American roadways by providing tools for considering safety in the project development process. The HSM assists practitioners in selecting countermeasures and prioritizing projects, comparing alternatives, and quantifying and predicting the safety performance of roadway elements considered in planning, design, construction, maintenance, and operation.