The impact of road alignment characteristics on different types of traffic accidents
The impact of road alignment characteristics on different types of traffic accidents
复制标题
道路线形特征对不同类型交通事故的影响
DOI：
10.1080/19439962.2018.1538173
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发表时间：
2020
影响因子：
2.6
通讯作者：
Zhou B.
中科院分区：
文献类型：
--
作者：
Liu Z.;He J.;Zhang C.;Xing L.;Zhou B.
摘要在影响道路交通安全的诸多因素中，道路线形特征因其间接引起交通事故而常被人们所忽视。针对这一问题，选取交通事故总数、交通事故总伤亡人数（死亡、轻伤、重伤）和道路封闭总时间作为道路安全评价指标，采用TOPSIS方法对道路安全进行排序。等级指标值C < 0.8的路段被认定为事故黑点。在此基础上，选择坡度方向、高程差绝对值、高程标准差、曲线半径、过渡曲线比值来描述道路线形特征。结合历史事故数据，建立二元logistic回归模型，分析对线因素对追尾、撞治具、侧翻三种事故类型频繁发生的影响。
Abstract Among the factors affecting road traffic safety, road alignment characteristics are often ignored by people because they cause traffic accidents in an indirect way. In view of this problem, the total number of accidents, the total casualties of accidents (deaths, minor injuries, serious injuries), and the total time of road closures were chosen as road safety evaluation indices and ranked by the technique for order preference by similarity to an ideal solution (TOPSIS) method. The road sections whose ranking index value C < 0.8 were identified as accident blackspots. On this basis, the slope direction, absolute value of the elevation difference, Standard Deviation of elevation, curve radius, and transition curve ratio were chosen to describe the characteristics of road alignment. Combined with historical accident data, binary logistic regression models were established to analyze the effects of alignment factors on the frequent occurrence of three accident types (rear-end, hitting the fixture, rollover).