中国安全科学学报 ›› 2017, Vol. 27 ›› Issue (3): 106-110.doi: 10.16265/j.cnki.issn1003-3033.2017.03.019

• 安全工程技术科学 • 上一篇    下一篇

不连续边缘标线影响追尾风险的结构方程模型

丁乃侃1, 朱顺应1 教授, 王红1 副教授, 焦泥沙2   

  1. 1 武汉理工大学 交通学院,湖北 武汉 430063
    2 湖北省交通运输厅 规划研究室,湖北 武汉 430030
  • 收稿日期:2016-12-20 修回日期:2017-02-09 发布日期:2020-11-22
  • 作者简介:丁乃侃 (1989—),男,湖北孝感人,博士研究生,主要研究方向为道路交通安全。E-mail: andrei8901@whut.edu.cn。
  • 基金资助:
    国家自然科学基金资助(51078299, 50778142);贵州省交通运输厅科技资助项目(2012-122-016)。

Structural equation model for effects of edge line markings on risk of rear-end collision

DING Naikan1, ZHU Shunying1, WANG Hong1, JIAO Nisha2   

  1. 1 School of Transportation, Wuhan University of Technology, Wuhan Hubei 430063, China
    2 Planning Research Studio, Department of Transportation of Hubei Province, Wuhan Hubei 430030, China
  • Received:2016-12-20 Revised:2017-02-09 Published:2020-11-22

摘要: 为研究驾驶员追尾风险感知对跟车安全性的影响,初步界定直接和间接的追尾风险感知,并深入挖掘其各自的风险来源,通过路上试验获取真实环境中的车流数据,并依此运用结构方程模型(SEM)探索多种因素与追尾风险的关系。结果显示,以间断或错位形式呈现的边缘标线可产生“不连续效应”,引起车头时距增大;边缘率感知和碰撞估计与“不连续效应”协同增大制动强度,导致车头时距的增大;以感知距离因素为主导的直接追尾风险感知产生的车头时距增大效果显著大于以碰撞估计为主导的间接追尾风险感知产生的效果。

关键词: 交通工程; 追尾风险; 车头时距; 路上试验; 结构方程模型(SEM);
不连续边缘标线

Abstract: To study the effect of driver's risk perception of rear-end collisions on car-following safety, the direct perception and indirect perception of the risk of rear-end collisions were preliminarily defined, and then the corresponding risk sources were also excavated in depth. Data on vehicle flows under practical conditions were collected by on-road field observation, and then the interactive causal relationships between various factors and the risk of rear-end collisions were explored with a SEM. The results show that the edge line markings with gap and/or offset give a "discontinuity effect", which leads to an increase in time headways,that the "discontinuity effect", the perception of edge rate and the collision estimation can synergistically increase the intensity of braking and then increase the time headways,and that the direct perception of risk of rear-end collisions can perform better in increasing time headways than the indirect one.

Key words: traffic engineering, risk of rear-end collisions, time headway, on-road experiment, structural equation model(SEM), discontinuous edge line markings

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