Modeling the equivalent property damage only crash rate for road segments using the hurdle regression framework
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- 作者：Lu Ma lma@bjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Xuedong Yan ; xdyan@bjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Chong Wei chwei@bjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Jiangfeng Wang wangjiangfeng@bjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Equivalent-property-damage-only rate ; Hurdle model ; Tobit model ; Mixed distribution ; Accident loss
- 刊名：Analytic Methods in Accident Research
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：11
- 期：Complete
- 页码：48-61
- 全文大小：705 K
文摘
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We propose a hurdle framework for modeling the EPDO crash rate.
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The hurdle model is highly flexible in accommodating mixed skew data.
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The lognormal distribution is an appropriate approximation to the positive EPDO rate.
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The EPDO rate can be used as a measure for accident hotspot identification.