交通运输系统工程与信息 ›› 2019, Vol. 19 ›› Issue (2): 182-188.

• 系统工程理论与方法 • 上一篇    下一篇

双车道公路超车安全距离模型

张文会*,孙舒蕊,苏永民   

  1. 东北林业大学 交通学院,哈尔滨 150040
  • 收稿日期:2018-10-16 修回日期:2019-01-07 出版日期:2019-04-25 发布日期:2019-04-25
  • 作者简介:张文会(1978-),男,黑龙江哈尔滨人,副教授,博士.
  • 基金资助:

    中央高校基本科研业务费专项资金/Fundamental Research Funds for the Central Universities(2572018BG01);国家重点研发计划项目/ National Key Research and Development Projects(2017YFC0803901);教育部社会科学研究基金/ Social Sciences Research Fund of the Ministry of Education(17YJCZH250).

Safe Distance Model for Overtaking on Two-lane Highway

ZHANG Wen-hui, SUN Shu-rui, SU Yong-min   

  1. School of Traffic, Northeast Forestry University, Harbin 150040, China
  • Received:2018-10-16 Revised:2019-01-07 Online:2019-04-25 Published:2019-04-25

摘要:

双车道公路上因超车不当而导致交通事故频发且后果多较为严重,故提出超车安全距离模型,旨在为超车安全预警装置、超车辅助判断系统等提供理论依据.本文首先分析了车辆在双车道公路超车过程中可能发生的碰撞类型,基于可能发生的碰撞类型对超车时间进行分段,分析每一超车时段车辆之间的安全距离,进而建立超车安全距离模型,以等速超车和加速超车为例,选取小型车、中型车、大型车作为前方被超车辆,确定仿真参数,基于 MATLAB 软件仿真,分析、验证超车安全距离模型的有效性.得出超车车辆与前方车辆及对向车辆之间的临界安全距离图,为汽车主动安全系统的研发和超车事故的预防提供了理论基础.

关键词: 交通工程, 临界安全距离, 控制变量法, 超车阶段划分, 安全区域, 超车安全

Abstract:

Traffic accidents induced by improper overtaking on the two-lane highways occur frequently. These traffic accidents tend to cause serious consequences. Therefore, a safe distance model during overtaking is proposed to provide theoretical basis for safe warning devices and assistant judging system. At first, this paper analyzes the types of collision during overtaking on a two-lane highway. The overtaking stage is divided into time segments based on the types of collision. The safe distance between vehicles in every overtaking period is analyzed. Then the safe distance model is established during overtaking. Taking speed remaining and speed increasing as examples, the small, medium and large type of vehicle serves as the leading vehicle respectively. The simulating parameters are input MATLAB to analyze and verify the effectiveness of the safe distance models. Finally, the critical safety distance curves of overtaking vehicle with leading vehicle and opposite vehicle are obtained. The results provide a theoretical basis for developing vehicle active safe system and preventing overtaking accidents.

Key words: traffic engineering, critical safety distance, control variable method, division of overtaking stages, safety zone, overtaking safety

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