吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (3): 756-763.doi: 10.13229/j.cnki.jdxbgxb201603012

• 论文 • 上一篇    下一篇

基于单个地磁传感器的交叉口排队长度估计

贾利民1, 陈娜1, 李海舰1, 2, 董宏辉1, 3   

  1. 1.北京交通大学 轨道交通控制与安全国家重点实验室, 北京 100044;
    2.北京工业大学 北京市交通工程重点实验室, 北京 100124;
    3.北京交通大学 北京市城市交通信息智能感知与服务工程技术研究中心, 北京 100044
  • 收稿日期:2014-08-26 出版日期:2016-06-20 发布日期:2016-06-20
  • 作者简介:贾利民(1963),男,教授,博士生导师.研究方向:智能交通,交通安全.E-mail:jialm@vip.sina.com
  • 基金资助:
    国家科技支撑计划项目(2014BAG01B02).

Intersection queue length estimation with single magnetic sensor

JIA Li-min1, CHEN Na1, LI Hai-jian1, 2, DONG Hong-hui1, 3   

  1. 1.State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing 100044, China;
    2.Beijing Key Laboratory of Traffic Engineering, Beijing University of Technology, Beijing 100124, China;
    3.Beijing Engineering Research Center of Urban Traffic Information Intelligent Sensing and Service Technologies, Beijing Jiaotong University, Beijing 100044, China
  • Received:2014-08-26 Online:2016-06-20 Published:2016-06-20

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摘要： 通过对车辆排队机理进行建模,利用车辆通过传感器时间及车尾时距描述车辆排队演化过程,从而估计邻近信号灯周期内的车辆排队长度。分析了车辆通过传感器时间及车辆车尾时距的动态变化规律,并提出车尾时距模型、通过时间模型和综合模型等对排队长度进行估计。最后,利用现场试验对本方法进行验证,试验结果表明本文提出的模型和方法能够准确估计交叉口车辆排队长度,且系统成本低廉、部署方便,便于大规模推广应用,能够为信号灯周期优化、交通服务水平评价等应用提供基础数据。

关键词: 交通运输系统工程, 地磁传感器, 信号交叉口, 排队长度估计, 排队车辆数

Abstract: To estimate the intersection queue length, a magnetic sensor is deployed near the stop line at the intersection. Through the vehicle queue mechanism modeling, the evolution of vehicle occupancy sensor time and the departure interval can be obtained. Eventually, the queue length of the last signal cycle can be estimated. This paper analyzes the variance of vehicle occupancy sensor time and the departure interval with the increase in queued vehicle number, thereby proposes departure interval model, vehicle occupancy sensor time model and comprehensive model to estimate the queue length. The accuracies of the proposed models are compared using field experiments. Results show that the proposed queue length estimation method can accurately get the queue length of the last signal cycle. The method costs low and can be deployed easily, and thus, it can facilitate large-scale popularization and application. It can provide intersection queue length information for signal cycle optimization and traffic service level evaluation in road signal intersections.

Key words: engineering of transportation and communication system, magnetic sensor, signal intersection, queue length estimation, queued vehicle numbers

中图分类号: 

  • U491
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