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Title:Development of Safety Screening Tool for High Risk Rural Roads in South Dakota
Authors:Xiao Qin and Adam Wellner
University:South Dakota State University
Publication Date:Mar 2011
Report #:MPC-11-231
Project #:MPC-317
TRID #:01340424
Keywords:geographic information systems, high risk locations, highway safety, rural highways
Type:Research Report – MPC Publications



Given the sparsely distributed crashes across various highway systems, this study designed an empirical Bayes (EB) based sliding window technique within a spatial context. By examining roadway safety spatially, the safety analysts are able to account for high-risk locations completely within longer predefined segments and locations, which may include multiple predefined roadway segments. Removing the dependence on predefined segmentation can also bring to the forefront safety issues previously ignored. The robustness of the EB method significantly improves the crash estimation accuracy. In conjunction with several different but complementary safety metrics, a complete view of rural highway safety performance can be presented.

To ease the use of such a new technique, the South Dakota GIS Highway Safety Review (GIS-HSR) Tools was developed, which provides a data-driven approach toward identifying high-risk locations.

How to Cite

Qin, Xiao, and Adam Wellner. Development of Safety Screening Tool for High Risk Rural Roads in South Dakota, MPC-11-231. North Dakota State University - Upper Great Plains Transportation Institute, Fargo: Mountain-Plains Consortium, 2011.

NDSU Dept 2880P.O. Box 6050Fargo, ND 58108-6050