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突发灾害下公交优先信号干线协调控制方法研究

发表时间:2015-07-31  浏览量:1179  下载量:333
全部作者: 林赐云,龚勃文,曲鑫
作者单位: 吉林大学汽车动态仿真与控制国家重点实验室;吉林大学交通学院
摘 要: 针对突发灾害条件下受灾区域人员安全、有序、快速疏散的需求,利用公交车辆运量大、效率高、低能耗等特点,在无公交专用道的条件下,基于乘客情况和公交车运行状态,通过交通信号干线协调控制,为公交车辆提供应急信号或优先信号,以实现在突发灾害下快速疏散受灾人员的需要。从突发灾害下应急车道或公交专用道在疏散通道难以建立和维护的现实出发,通过对公交车辆的优先等级和优先策略分析、公交车辆到达时间估计、交叉口排队车辆消散时间估计、交叉口交通信号状态估计、信号优先策略优化选择,研究突发灾害时无公交专用道情况下的公交车辆应急与优先信号干线协调控制方法。并利用VC++和Paramics API搭建仿真实验平台,仿真结果表明,提出的方法在饱和度大于0.8的条件下,能有效降低应急公交车辆、常规公交车辆的行程时间分别>13%和>6.0%,提高行程时间稳定性分别>43%和>24%.
关 键 词: 交通运输系统工程;公交信号优先;干线协调控制;应急信号优先;突发灾害
Title: Transit priority signal arterial coordination control in sudden-onset disaster
Author: LIN Ciyun, GONG Bowen, QU Xin
Organization: National Key Laboratory for Automotive Simulation and Control, Jilin University; College of Traffic, Jilin University
Abstract: Aimed to evacuate the victim from disaster affected area safely, orderly, fastly, and to solve the difficulty to establish and maintain emergency vehicle lanes and transit-only lanes in sudden-onset disaster, this paper takes advantage of large capacity, high efficiency and low energy of transit system, and uses the transit system to evacuate the victim from disaster affected area by providing emergency signal or priority signal for transit based on passenger situation and transit status, proceeding transit emergency and priority signal arterial coordination control without emergency vehicle lanes and transit-only lanes in sudden-onset disaster. Firstly, vehicle signal priority level and priority strategy in evacuation route is analyzed. Then, transit arrival time estimation, queneing vehicle dissipation time estimation, traffic control signal status estimation, signal priority strategy optimization, arterial traffic signal offset optimization and online adjust as the kernel module are composed of transit emergency signal or prioprity signal arterial coordination control method. Finally, VC++ and Paramics API are used to develop simulation platform for testing the operation effect of transit emergency signal or priority signal arterial coordination control method. The results show that it can decrease travel time more than 13% and 6.0% and increase travel time stability more than 43% and 24% for transit signal emergency and transit signal priority separately under the saturation of traffic flow is greater than 0.8.
Key words: transportation systems engineering; transit signal priority; arterial coordination control; emergency signal priority; sudden-onset disaster
发表期数: 2015年7月第14期
引用格式: 林赐云,龚勃文,曲鑫. 突发灾害下公交优先信号干线协调控制方法研究[J]. 中国科技论文在线精品论文,2015,8(14):1532-1542.
 
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