基于车辆轨迹重构的信号交叉口延误提取研究

交通运输系统工程与信息 ›› 2020, Vol. 20 ›› Issue (2): 237-243.

• 案例分析 • 上一篇

基于车辆轨迹重构的信号交叉口延误提取研究

张惠玲^{*1, 2}，刘晓晓²，许裕东²

1. 山地城市交通系统与安全重庆市重点实验室，重庆 400074；2. 重庆交通大学交通运输学院，重庆 400074

收稿日期:2019-12-13 修回日期:2020-02-06 出版日期:2020-04-25 发布日期:2020-04-30
作者简介:张惠玲(1980-)，女，宁夏中宁人，教授，博士.
基金资助:
国家自然科学基金/ National Natural Science Foundation of China(51508061)；重庆市自然科学基金面上项目/ Natural Science Foundation of Chongqing, China(cstc2019jcyj-msxmX0786)；山地城市交通系统与安全重庆市重点实验室开放基金/Open Fund of Chongqing Key Lab of Traffic System and Safety in Mountain Cities(2018TSSMC03).

Delay Extraction Based on Vehicle's Trajectory Reconstruction at Signalized Intersection

ZHANG Hui-ling^{1, 2}, LIU Xiao-xiao², XU Yu-dong²

1. Chongqing Key Lab of Traffic System & Safety in Mountain Cities, Chongqing 400074, China; 2. College of Traffic & Transportation, Chongqing Jiaotong University, Chongqing 400074, China

Received:2019-12-13 Revised:2020-02-06 Online:2020-04-25 Published:2020-04-30

摘要/Abstract

摘要：

通过信号交叉口设置的监控设施，获取停车线前f 辆车的相关信息，以其为分析数据源，重构车辆运行轨迹，提取信号交叉口的延误参数. 对于轨迹重构中车辆运行时减速、停车、启动，以及恢复正常行驶速度等关键时间点的确定方法为：借助前f 辆车的停车时间信息和车辆到达概率分布函数，确定后续车辆的停车时间；结合车辆减速过程满足的双曲正弦函数，确定经历排队车辆的减速时间点；以前f 辆车的启动时间为输入，借助饱和车头时距，计算车辆启动时间点；根据车辆加速满足的匀变加速过程，确定车辆恢复正常行驶速度的时间点. 最后，通过实际车辆轨迹数据验证了该方法的精度.

关键词: 交通工程, 信号交叉口, 车辆运行关键点, 轨迹重构, 车辆延误

Abstract:

Taking the first f- th vehicles' information under the monitoring camera facility at the signalized intersection as the data input, this paper reconstructs the trajectory of the vehicles, and extracts the delay information. The calculation method on the key time points in the vehicle's trajectory reconstruction, including the initial deceleration time, stopping time, start-up time and recovery time, is described as follows. With the first f-th vehicles' stopping time and the vehicle's arrival distribution function, the following vehicle's stopping time can be deduced; with the vehicles' deceleration procedure fitted as the hyperbolic sine function, using this function and the stopping time, the deceleration time can be calculated; using the first f-th vehicles' start-up time and the saturation headway, the following vehicle's start- up time can be determined; and using the uniform variable acceleration procedure, the recovery time can be calculated. Lastly, the accuracy of the method has been verified through the real vehicle's trajectory data.

Key words: traffic engineering, signalized intersection, vehicle running critical point, trajectory reconstruction, delay extraction

中图分类号:

U491.1

张惠玲，刘晓晓，许裕东. 基于车辆轨迹重构的信号交叉口延误提取研究[J]. 交通运输系统工程与信息, 2020, 20(2): 237-243.

ZHANG Hui-ling, LIU Xiao-xiao, XU Yu-dong. Delay Extraction Based on Vehicle's Trajectory Reconstruction at Signalized Intersection[J]. Journal of Transportation Systems Engineering and Information Technology, 2020, 20(2): 237-243.

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链接本文: http://www.tseit.org.cn/CN/abstract/abstract20036.shtml

http://www.tseit.org.cn/CN/Y2020/V20/I2/237

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基于车辆轨迹重构的信号交叉口延误提取研究

Delay Extraction Based on Vehicle's Trajectory Reconstruction at Signalized Intersection

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