考虑可变速度调节的单点交叉口公交信号优先控制方法  

Bus Signal Priority Control Method for Isolated Intersection Based on Dynamic Variable Speed Adjustment

作　　者：马万经[1] 吴明敏[1] 韩宝新[1] 刘好德[2] 吴洪洋[2] 

机构地区：[1]同济大学道路与交通工程教育部重点实验室,上海201804 [2]交通运输部科学研究院,北京100029

出　　处：《中国公路学报》2013年第2期127-133,共7页China Journal of Highway and Transport

基　　金：国家自然科学基金项目(51178345);交通运输部西部交通建设科技项目(2011 318 221 1210)

摘　　要：基于公交运行车速动态可变的运行环境,以公交运行状态最优为目标,提出了"最大可能优先通行"和"最优速度节能减排"2个控制原则;考虑公交车辆位置、车辆是否晚点、车辆速度、速度变化幅度、车辆到达时刻、信号控制参数变化范围等约束条件,针对需要优先通过和不需要优先通过2种情形,设计了信号控制方案和最佳速度调整规则簇,建立了运行速度与优先控制方案的协调优化方法。基于VISSIM仿真软件及其二次开发COM接口,设计了车路协同下信号优先控制的仿真平台,并对1个四相位信号控制交叉口进行了仿真分析。结果表明:与无优先和传统的感应优先相比,所提出的方法在降低公交车延误,恢复时刻表偏离,减少能源消耗,降低污染物排放和减小对于其他社会车辆影响上有显著的提高;参数敏感性分析进一步证明了不同交通量情况下该模型的适应性。Abstract： With the objective of finding optimal bus operation based on information and communication environment provided by Connected Vehicle systems, two principles of integrated optimization were proposed： passing junction with priority and optimal speed with minimum fuel consumption and emission. Constraints such as location of bus, bus operation status, bus speed, change range of speed arriving time and signal timing were taken into consideration. Signal timing plan and optimal speed adjustment rules cluster were designed for two cases （passing junction with priority and without priority）. Coordination and optimization method was established for operation speed and priority control. A VISSIM-based simulation platform was designed and used for simulation and evaluation of the proposed method. The results show that the proposed approach outperforms the no priority and conventional priority strategies （without bus speed adjustment） in terms of reducing bus delays, improving schedule adherence, saving energy,reducing emission, and minimizing t further demonstrated the potential of control system under different levels impact on general traffic. The sensitivity analysis has e proposed approach to be applied in real-time bus priority traffic.

关 键 词：交通工程 公交信号 车路协同 速度引导 控制规则 

分 类 号：U491.23[交通运输工程—交通运输规划与管理]