随机环境下公交优先控制理论与方法研究

项目名称： 随机环境下公交优先控制理论与方法研究

项目编号： No.61463026

项目类型： 地区科学基金项目

立项/批准年度： 2015

项目学科： 自动化技术、计算机技术

项目作者： 吕斌

作者单位： 兰州交通大学

项目金额： 45万元

中文摘要： 公交信号优先是减少公交车延误、提高公交服务水平的重要措施。已有公交信号优先控制模型未充分考虑公交车流和社会车流的随机特征，其控制效果还有待提升。本研究根据公交车流和社会车流到达率（车头时距）的随机特征，研究不同交通需求水平与交叉口渠化条件下的单点、干线协调控制系统公交优先控制问题。具体包括：利用交通调查数据提取社会、公交车流的到达率、车头时距、行驶速度等的随机特征分布参数；分别建立有、无公交专用车道（进口道）条件下单点被动式、主动式公交优先信号配时优化模型和算法；研究上下游交叉口社会车流与公交车辆运行状态的关联性，确定公交车流运行与协调系统绿波带的时空关系；研究公交优先策略及其适用条件，为满足不同交通需求水平，构建主动式、被动式干线协调控制系统公共周期、相位差优化、相位相序优化模型和求解算法；构建仿真平台验证模型与算法的有效性。研究成果对于提高公交车辆运行效率具有重要的理论和现实意义。

中文关键词： 交通控制；公交优先；交通仿真；随机环境；信号配时

英文摘要： Transit signal priority is an important measure to reduce bus delays and improve the level services of public transport. The stochastic characteristics of buses and social vehicles are neglected at some extent in the signal optimization process. Considering stochastic characteristics of traffic flow, level of traffic demand and signal timing parameters, this project will study on parameters optimization model for transit priority signal timing plan at single intersection and arterial coordinated control system. It can be included as follows: Using the traffic survey data, we will extract the stochastic distribution parameters of arrival rate, headway, speed of buses and social vehicles. Considering stochastic characteristics of buses and social vehicles, the stochastic optimization model will be established for isolated intersection with and without bus lanes using uncertain programming theory. The upstream and downstream intersection relevance of social vehicles and buses will be studied, and analyze the time form upstream to downstream intersection when the bus reaches the stopping line. The offset optimization model and algorithm based on decision making methods will be established in bus priority arterial traffic control system during rush hour and off-peak hour. The validity of the above mentioned approach will be demonstrated by simulation platform and its effectiveness is to be verified. Research result of this project will have important theoretical value and guidance for the alleviation traffic jams.

英文关键词： Traffic Control;TSP;Traffic Simulation;Stochastic Conditions;Timing Plan