交通运输系统工程与信息

交通运输系统工程与信息 ›› 2012, Vol. 12 ›› Issue (4): 64-71.

• 智能交通系统与信息技术 • 上一篇    下一篇

主路协调下单点TSP策略关键控制参数仿真优化

谭真,黄志义,梅振宇*   

  1. 浙江大学 交通工程研究所，杭州 310058
  • 收稿日期:2012-01-11 修回日期:2012-01-21 出版日期:2012-08-25 发布日期:2012-09-07
  • 作者简介:谭真(1987-)，男，浙江宁波人，硕士生.
  • 基金资助:

    国家自然基金项目(50908205);浙江省自然科学基金项目（ＬＹ１２Ｅ０８０２０）.

Simulation of Key Control Parameters with TSP Strategies and Artery Coordination on Isolated Intersections

TAN Zhen, HUANG Zhi-yi, MEI Zhen-yu   

  1. Institute of Transportation Engineering, Zhejiang University, Hangzhou 310058, China
  • Received:2012-01-11 Revised:2012-01-21 Online:2012-08-25 Published:2012-09-07

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被引次数

2

摘要：

城市交通道路中很多都采用了干道协调加单点感应模式，实施公交信号优先（TSP），公交专用道通行相位一般为协调相位，这要求优先策略满足周期稳定的要求.考虑协调控制的约束，以实际关键交叉口为对象，通过VISSIM-VAP模块实现了满足特定约束的TSP策略控制逻辑.仿真分析不同流量条件下TSP策略对最佳周期的影响以及单位绿灯延长时间、初始绿灯时间等关键控制参数的优化方法.结果表明：在特定流量组合下，与传统TRRL公式法相比，增加周期存在一定效益；单位绿灯延长时间、优先相位初始绿灯时间的取值均需考虑特定的流量条件；且对比发现，红灯早断策略的效果略优于绿灯延长策略.

关键词: 城市交通, 主动信号优先, 仿真分析, 控制参数, 最佳周期, 单位绿灯延长时间

Abstract:

The combination of arterial coordination and actuated control of single intersection has become a fascinating control pattern. Because coordination is usually implemented along the main road which has bus lanes, it requires active signal priority strategies with a stable cycle length. Taking the real key intersections on artery as the subject, the TSP controlling logics with specific restrictions are realized by the VISSIMVAP module. Through simulation analysis, the effect of TSP strategies with flow variation on optimal cycle is discussed, together with a reasonable way to select gap time and priority phase’s initial green. The results show that under special flow combination, increasing the cycle time generated by traditional TRRL approach can obtain some extra benefits. And the volume condition has a bearing on both gap time and TSP phase’s initial green time. Besides, the efficacy of early green is slightly better than green extension strategy by comparison.

Key words: urban traffic, active signal priority, simulation analysis, control parameters, optimal cycle, gap time

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