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考虑可变速度调节的单点交叉口公交信号优先控制方法

, PP. 127-133

Keywords: 交通工程,公交信号,车路协同,速度引导,控制规则

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Abstract:

?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。

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