有轨电车交叉口优先控制方法及其影响分析
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文章编号: 1672-5328(2017)06-0085-06
蔡明
(深圳市市政设计研究院有限公司,深圳518029)
摘要: 有轨电车在交叉口的通行效率直接影响其行程时间和客运能力。在借鉴相关研究成果的基础 上,从有轨电车交叉口优先控制方法分类入手,分析不同控制方法对交叉口运行的影响。提出绿灯 时间延长及红灯时间提前两种主动优先控制策略下车辆延误变化的计算方法。结果表明,有轨电车 冲突相位车均延误增量与流量比率、绿灯延长时间(绿灯早启时间)呈正相关关系,且绿灯早启对非 优先相位机动车的影响更大。最后,利用VISSM仿真平台进行对比分析,计算结果与仿真结果相 对误差在16%以内,验证了计算方法的有效性。
关键词: 信号控制;交叉口;有轨电车;优先控制方法;仿真分析
中图分类号: U491
文献标识码:A
Adaptive Signal Control for Tramcar at Intersection and Impact Analysis
Cai Ming
(Shenzhen Municipal Design & Research Institute Co., Ltd., Shenzhen 518029, China)
Abstract: Whether a tramcar can efficiently go through intersections has a direct impact on its travel time and passenger capacity. Based on the related research results, this paper summarizes the classification of adaptive control for tramcar at intersection and analyses the influence of varying control methods on traffic operation. The paper proposes a calculation method of vehicle delay changes under two adaptive control strategies, namely increasing green light time and shortening red light time. The results show that, there is a positive correlation between the vehicle delay increase at the phase conflicting with tramcar, traffic flow rate, and green light time increase (advanced green light). Notably, the advanced green light bears more influence on the non-priority phased motorized traffic. Finally, using VISSM simulation platform to demonstrate method application, the result shows that the relative error between calculation and simulated results is within 16%.
Keywords: signal control; intersection; tramcar; adaptive control; simulation