Truck crash severity in New York city: An investigation of the spatial and the time of day effects.
Truck crash severity in New York city: An investigation of the spatial and the time of day effects.
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DOI：
10.1016/j.aap.2016.11.024
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发表时间：
2017-02
期刊：
影响因子：
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通讯作者：
W. Zou;X. Wang;Dapeng Zhang
中科院分区：
文献类型：
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作者：
W. Zou;X. Wang;Dapeng Zhang
本文研究了纽约市单车和多车卡车碰撞之间的差异。随机参数模型考虑了一天中的时间效应，异质卡车重量效应和其他影响因素，如碰撞特性，驾驶员和车辆特性，建筑环境因素和交通量属性。基于共位商分析的结果，进一步发展了空间广义有序概率单位模型，以研究单车卡车碰撞事故之间潜在的空间依赖性。样本来自2008年至2012年的州维护的事件数据、公开可用的智能位置数据和最佳实践模型（BPM）数据。结果表明，影响单车与多车碰撞严重度的因素有很大差异。这也表明，异质性确实存在的卡车重量，它表现出不同的单车和多车卡车碰撞。此外，单个卡车碰撞被证明是空间依赖性事件的单车和多车碰撞。最后但并非最不重要的是，下午和晚上的时间段，下午和晚上发生的碰撞事故在单车碰撞中不太严重，但在多车碰撞中更严重。
This paper investigates the differences between single-vehicle and multi-vehicle truck crashes in New York City. The random parameter models take into account the time of day effect, the heterogeneous truck weight effect and other influencing factors such as crash characteristics, driver and vehicle characteristics, built environment factors and traffic volume attributes. Based on the results from the co-location quotient analysis, a spatial generalized ordered probit model is further developed to investigate the potential spatial dependency among single-vehicle truck crashes. The sample is drawn from the state maintained incident data, the publicly available Smart Location Data, and the BEST Practices Model (BPM) data from 2008 to 2012. The result shows that there exists a substantial difference between factors influencing single-vehicle and multi-vehicle truck crash severity. It also suggests that heterogeneity does exist in the truck weight, and it behaves differently in single-vehicle and multi-vehicle truck crashes. Furthermore, individual truck crashes are proved to be spatially dependent events for both single and multi-vehicle crashes. Last but not least, significant time of day effects were found for PM and night time slots, crashes that occurred in the afternoons and at nights were less severe in single-vehicle crashes, but more severe in multi-vehicle crashes.