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Title:Evaluating Local and Tribal Rural Road Design with the Interactive Highway Safety Design Model
Authors:Xiao Qin, Zhi Chen, Chase Cutler, and Kimberly Vachal
Publication Date:Sep 2013
Report #:DP-264
TRID #:01495174
Keywords:highway design, highway safety, rural highways, traffic crashes, two lane highways, types of roads by jurisdiction
Type:Research Report – Department Publications

 

Abstract

This document presents the application of the Highway Safety Manual (HSM) for rural local two-lane two-way highway segments in South Dakota. The calibration was based on three-year (2009-2011) crash data from 657 roadway segments constituting more than 750 miles of roadways. The calibration process includes establishing new base conditions, developing safety performance functions, converting crash modification factors to base conditions as well as substituting default values with state-specific values. Five models have been developed and compared based on statistical goodness-of-fit and calibration factors. The same procedures were also conducted for the tribal two-lane two-way highway segments in South Dakota based on three-year (2009-2011) crash data from 56 roadway segments constituting 199.5 miles of roadway. This documentation provides important guidance and empirical results regarding how to calibrate HSM models.

How to Cite

Qin, Xiao, Zhi Chen, Chase Cutler, and Kimberly Vachal. Evaluating Local and Tribal Rural Road Design with the Interactive Highway Safety Design Model, DP-264. North Dakota State University, Fargo: Upper Great Plains Transportation Institute, 2013.

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