Examining the factors affecting the severity of run-off-road crashes in Abu Dhabi
Shawky, Mohamed; Hassan, Hany M.; Garib, Atef M.; Al-Harthei, Hussain A.;
Abstract
Recently, the severity of injuries resulting from traffic crashes has been extensively investigated in numerous studies. However, the number of studies that addressed the severity of the run-off-road (ROR) crashes is relatively low. In the Emirate of Abu Dhabi (AD), approximately 22% of the total serious crashes and fatalities that occurred from 2007 to 2013 were ROR crashes. Despite these facts and the uniqueness of the composition of licensed drivers in AD (approximately 87% of them are non- Emiratis), the factors affecting the occurrence and severity of ROR crashes in AD have not been explicitly addressed in any prior studies. Therefore, this study aims to investigate the characteristics of at-fault drivers involved in ROR crashes in AD, the nature and main causes of those crashes. In this regard, conditional distribution and two-way contingency tables were developed. In addition, this study aims to identify and quantify the factors affecting the severity of ROR crashes such as driver, road, vehicle and environment factors. To achieve this goal, ordered probit model approach was employed. Crash data for a total of 3819 ROR crashes that occurred in AD were employed in the analysis. The results indicated that driver factors (carelessness, speeding, and nationality), vehicle characteristics (vehicle type), and road and environment factors (road type, crash location and road surface condition) were the significant factors influencing the severity of ROR crashes in AD. Countermeasures to improve traffic safety and reduce numbers and severity of ROR crashes in AD were discussed.
Other data
Title | Examining the factors affecting the severity of run-off-road crashes in Abu Dhabi | Authors | Shawky, Mohamed ; Hassan, Hany M.; Garib, Atef M.; Al-Harthei, Hussain A. | Keywords | Crash severity | Ordered logit model | Run-off-road crashes | Traffic safety | Issue Date | 18-Nov-2015 | Publisher | CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS | Journal | Canadian Journal of Civil Engineering | ISSN | 03151468 | DOI | 10.1139/cjce-2014-0393 | Scopus ID | 2-s2.0-84957059524 | Web of science ID | WOS:000370046300005 |
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