Predicting single-vehicle fatal crashes for two-lane rural highways in Southeastern United States

Zhu, Hong, Dixon, Karen K., Washington, Simon, & Jared, David (2010) Predicting single-vehicle fatal crashes for two-lane rural highways in Southeastern United States. Transportation Research Record, 2147(2010), pp. 88-96.

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Abstract

The rural two-lane highway in the southeastern United States is frequently associated with a disproportionate number of serious and fatal crashes and as such remains a focus of considerable safety research. The Georgia Department of Transportation spearheaded a regional fatal crash analysis to identify various safety performances of two-lane rural highways and to offer guidance for identifying suitable countermeasures with which to mitigate fatal crashes. The fatal crash data used in this study were compiled from Alabama, Georgia, Mississippi, and South Carolina. The database, developed for an earlier study, included 557 randomly selected fatal crashes from 1997 or 1998 or both (this varied by state). Each participating state identified the candidate crashes and performed physical or video site visits to construct crash databases with enhance site-specific information. Motivated by the hypothesis that single- and multiple-vehicle crashes arise from fundamentally different circumstances, the research team applied binary logit models to predict the probability that a fatal crash is a single-vehicle run-off-road fatal crash given roadway design characteristics, roadside environment features, and traffic conditions proximal to the crash site. A wide variety of factors appears to influence or be associated with single-vehicle fatal crashes. In a model transferability assessment, the authors determined that lane width, horizontal curvature, and ambient lighting are the only three significant variables that are consistent for single-vehicle run-off-road crashes for all study locations.

Impact and interest:

6 citations in Scopus
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7 citations in Web of Science®

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ID Code: 40493
Item Type: Journal Article
Refereed: Yes
DOI: 10.3141/2147-11
ISSN: 0361-1981
Divisions: Current > Research Centres > Centre for Accident Research & Road Safety - Qld (CARRS-Q)
Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Psychology & Counselling
Copyright Owner: Copyright 2010 The Transportation Research Board of National Academies
Deposited On: 08 Mar 2011 00:51
Last Modified: 29 Feb 2012 14:31

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