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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/11919

Title: Using logistic regression to estimate the influence of accident factors on accident severity
Authors: Al-Ghamdi, A.S.
Keywords: Accident severity; Logistic regression
Issue Date: 2002
Publisher: Copyright © 2002 Elsevier Science Ltd. All rights reserved.
Citation: Accident Analysis & PreventionVolume 34, Issue 6, November 2002, Pages 729-741
Abstract: Logistic regression was applied to accident-related data collected from traffic police records in order to examine the contribution of several variables to accident severity. A total of 560 subjects involved in serious accidents were sampled. Accident severity (the dependent variable) in this study is a dichotomous variable with two categories, fatal and non-fatal. Therefore, each of the subjects sampled was classified as being in either a fatal or non-fatal accident. Because of the binary nature of this dependent variable, a logistic regression approach was found suitable. Of nine independent variables obtained from police accident reports, two were found most significantly associated with accident severity, namely, location and cause of accident. A statistical interpretation is given of the model-developed estimates in terms of the odds ratio concept. The findings show that logistic regression as used in this research is a promising tool in providing meaningful interpretations that can be used for future safety improvements in Riyadh. © 2002 Elsevier Science Ltd. All rights reserved.
URI: http://hdl.handle.net/123456789/11919
ISSN: 00014575
Appears in Collections:College of Engineering

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