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Improved Prediction Models for Crash Types and Crash Severities

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The release of the Highway Safety Manual (HSM) by the American Association of State Highway and Transportation Officials (AASHTO) in 2010 was a landmark event in the practice of road safety analysis. Before it, the United States had no central repository for information about quantitative road safety analysis methodology.

The TRB National Cooperative Highway Research Program'sNCHRP Web-Only Document 295: Improved Prediction Models for Crash Types and Crash Severities describes efforts to develop improved crash prediction methods for crash type and severity for the three facility types covered in the HSM—specifically, two‐lane rural highways, multilane rural highways, and urban/suburban arterials.

Supplemental materials to the Web-Only Document include Appendices A, B, and C (Average Condition Models, Crash Severities – Ordered Probit Fractional Split Modeling Approach, and Draft Content for Highway Safety Manual, 2nd Edition).

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National Academies of Sciences, Engineering, and Medicine. 2021. Improved Prediction Models for Crash Types and Crash Severities. Washington, DC: The National Academies Press. https://doi.org/10.17226/26164.

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138 pages | 8.5 x 11
DOI: https://doi.org/10.17226/26164
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