华南理工大学学报(自然科学版) ›› 2009, Vol. 37 ›› Issue (11): 43-49.

• 交通与运输工程 • 上一篇    下一篇

基于改进AMOC的北京快速环路协调控制策略

占建云 李志恒 张毅 段后利   

  1. 清华大学 自动化系, 北京 100084
  • 收稿日期:2008-10-13 修回日期:2008-12-09 出版日期:2009-11-25 发布日期:2009-11-25
  • 通信作者: 占建云(1978-),男,博士生,主要从事智能交通系统研究. E-mail:zhanjy06@mails.tsinghHa.edu.cn
  • 作者简介:占建云(1978-),男,博士生,主要从事智能交通系统研究.
  • 基金资助:

    国家“863”高技术计划项目(2006AA11Z208);国家“973”计划项目(2006CB70550)

Coordinated Control Strategies of Beijing Ring FreewayBased on Improved AMOC

Zhan Jian-yun  Li Zhi-hen  Zhang Yi  Duan Hou-li   

  1. Department of Automation,Tsinghua University,Beijing 100084,China
  • Received:2008-10-13 Revised:2008-12-09 Online:2009-11-25 Published:2009-11-25
  • Contact: 占建云(1978-),男,博士生,主要从事智能交通系统研究. E-mail:zhanjy06@mails.tsinghHa.edu.cn
  • About author:占建云(1978-),男,博士生,主要从事智能交通系统研究.
  • Supported by:

    国家“863”高技术计划项目(2006AA11Z208);国家“973”计划项目(2006CB70550)

摘要: 根据北京快速环路的交通流特性及出入口间距短、交织严重的特点,改进了基础模型METANET的节点模型和路段模型,在此基础上,建立了非线性最优控制模型,给出了离散性最优出入口协调控制系统解.以北京二环快速路为实例,将采用改进最优控制(AMOC)策略的仿真结果与实测环路数据的交通状态进行比对,结果表明采用改进AMOC能使快速路交通流密度维持在期望的密度范围内,排队长度也较小,路网所有车辆旅行总时间下降18.4%.

关键词: 快速路, 改进AMOC, 出入口控制, 最优控制

Abstract:

According to the traffic flow characteristics,the short passageway distance and the serious interweaving of Beijing ring freeway,the node and road section models of the basic model METANET are both improved.Accordingly,a nonlinear optimal control model is established,and a solution to the coordinated control system of passageway is obtained with optimal discreteness.Afterwards,by taking Beijing ring freeway for example,a comparison is made between the simulated results based on the improved AMOC strategies and the actual trafic status.The results show that the improved AMOC strategies help to maintain the traffic density in a desired range with relatively short queue length.and reduce the total travelling time of all vehicles in the road network by 18.4%

Key words: road engineering, asphalt mixture, rutting, digital image processing, movement track