Journal of Computer Applications ›› 2018, Vol. 38 ›› Issue (10): 3025-3029.

### Trigger probability model of transit signal priority strategies based on signal timing

1. 1. College of Metropolitan Transportation, Beijing University of Technology, Beijing 100022, China;
2. College of Transportation and Civil Engineering, Fujian Agriculture and Forestry University, Fuzhou Fujian 350002, China;
3. Department of Civil Engineering and Engineering Mechanics, The University of Arizona, Tucson Arizona 85719, USA
• Supported by:
This work is partially supported by the National Natural Science Foundation of China (51578028).

### 基于信号配时的公交优先策略触发概率模型

1. 1. 北京工业大学 城市交通学院, 北京 100022;
2. 福建农林大学 交通与土木工程学院, 福州 350002;
3. 亚利桑那大学 土木工程与工程力学系, 亚利桑那州 图森 85719, 美国
• 通讯作者: 黄海南
• 作者简介:黄海南(1983-),男,福建龙海人,讲师,博士研究生,主要研究方向:公共交通规划及优化;李晓峰(1990-),男,河北石家庄人,博士研究生,主要研究方向:城市交通规划方法与优化;连培昆(1985-),男,福建惠安人,讲师,博士,主要研究方向:交通管理与控制;荣建(1972-),男,四川乐山人,教授,博士,主要研究方向:道路通行能力、交通仿真。
• 基金资助:
国家自然科学基金资助项目（51578028）。

Abstract: Aiming at the problem that the existing signal control logic cannot respond to the bus cumulative number and the sensitivity of control parameters is poor, a bus priority strategy trigger probability model was constructed to detect and analyze the methods for improving trigger accuracy. Based on the Siemens 2070 signal controller, the triggering theory of Transit Signal Priority (TSP) was analyzed, and the trigger probability models were constructed for green-extension strategy and early-green strategy. Taking the actual intersection as an example, the trigger probability results of different signal timing plans were calculated and compared by simulation, the trigger characteristic of TSP strategies was studied and the improvement was discussed. The research shows that the trigger probability of green-extension strategy is so far below the early-green strategy; the trigger probability of green-extension is inversely proportional to the mini-green and the max-green time, while the trigger probability of early-green strategy is mainly related to the number of buses which applying for priority in the non-favored signal phase; the trigger probability of green-extension strategy can be improved by optimizing the mini-green, max-green time and increasing the bus number applying for priority; the trigger probability of early-green strategy can be improved by optimizing the original signal timing scheme then adding TSP subsequently.

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