上海交通大学学报(自然版) ›› 2011, Vol. 45 ›› Issue (08): 1246-1250.

• 交通运输 • 上一篇    

高速路网可变信息标志诱导的最优开关控制设计

孙伟力1,李平1,王慧1,刘泓2   

  1. (1. 浙江大学 控制科学与工程学系, 杭州 310027; 2. 浙江大学城市学院 信息与电气工程学院,杭州 310015)
  • 收稿日期:2011-04-20 出版日期:2011-08-30 发布日期:2011-08-30
  • 基金资助:

    国家自然科学基金资助项目(60974007),浙江省教育厅重点科研项目(Z201018730)

Optimal Onoff Control of VMS for Highway Route Guidance

 SUN  Wei-Li-1, LI  Ping-1, WANG  Hui-1, LIU  Hong-2   

  1. (1. Department of Control Science and Engineering, Zhejiang University, Hangzhou 310027, China;2. School of Information & Electrical Engineering, Zhejiang University City College, Hangzhou 310015, China)
  • Received:2011-04-20 Online:2011-08-30 Published:2011-08-30

摘要: 针对高速路网中诱导策略的设计,以可变信息标志(Variable Message Signs, VMS)的开关切换为控制手段,把交通诱导归纳为一类最优开关控制命题.通过元胞传输模型建立实际路网模型,利用遗传算法求解,给出了一种VMS诱导策略的最优设计方法.仿真结果表明,设计给出的VMS控制律可以提高路网通行能力,缓解局部拥堵.特别是对路网流量分布不均衡的情况效果较好,路网总耗费时间可降低32.39%.

关键词: 可变信息标志, 交通诱导, 开关控制, 元胞传输模型

Abstract: The problem of designing route guidance strategies for highway networks via onroute recommendation of variable message signs (VMS) was considered. A generic problem formulation was presented in the format of an optimal onoff control problem whose control action is the switching of VMS. The cell transmission model was then employed to perform network dynamics and a genetic algorithm-based problem solving approach was given. The simulation shows that the strategy with optimal VMS control trajectories can make better use of the highway capability and reduce regional congestion, especially in case the traffic network has unbalanced demand. The total time spent (TTS) of the network can be improved up to 32.39%.

Key words: variable message signs, route guidance, optimal onoff control, cell transmission model

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