The effect of zonal factors in estimating crash risks by transportation modes: Motor vehicle, bicycle and pedestrian

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• 作者：Jie Wang^a ; ^{jie_wang@csu.edu.cn} ; Helai Huang^a ; ^{huanghelai@csu.edu.cn} ; Qiang Zeng^b ; ^{zengqiang@scut.edu.cn}
• 关键词：Transportation modes ; Macroscopic variables ; Unobserved heterogeneity ; Buffer width ; Intersection safety
• 刊名：Accident Analysis & Prevention
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：98
• 期：Complete
• 页码：223-231
• 全文大小：606 K
• 卷排序：98

文摘

This paper investigates factors associated with crash occurrences by different transportation modes. Zonal factors have significant effects on intersection crashes. Zonal factors contribute to tracking the source of heterogeneity of risk factors. Zonal factors play a more important role in elevating the model performance for non-motorized than motor-vehicle crashes. A relatively smaller buffer width to extract zonal factors yields better estimations.