基于公交优先的交叉口定周期多时段划分方法  

Intersection Fixed Cycle Multi-period Division Methods Based on Bus Priority

作　　者：尚春琳 刘小明[1] 李正熙[1] 唐少虎[1] 张骁[1] 

机构地区：[1]北方工业大学城市道路交通智能控制技术北京市重点实验室,北京100144

出　　处：《武汉理工大学学报（交通科学与工程版）》2016年第5期839-844,共6页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金："十二五"国家科技支撑计划项目资助(2014BAG03B01)

摘　　要：现行的交叉口多时段划分并未以公共交通为导向(transit-oriented development,TOD)进行设计,据此根据交叉口的公交车辆流量特性,研究满足TOD模式要求的交叉口定周期多时段划分方法.将通过调查统计所得的公交车辆流量同社会车辆流量数据进行对比,采用谱聚类(spectral clustering)的方法确定两者之间的加权比重,据此选用PAA(piecewise aggregate approximation)方法进行交叉口的多时段划分.选取人均延误作为效益指标来衡量路口通行效率,经VISSIM仿真验证发现,满足TOD模式要求的交叉口定周期多时段划分方法提高了公交车辆的通行效率,进而使路口的人均延误显著降低,达到了以公共交通为导向的目的,提高了公共交通的优先性.The present intersection multi-period division methods have not taken the Transit Oriented Development(TOD)into account.This paper tries to develop a new method by combining with bus flow of the intersection to meet the TOD's demand.This paper compares social vehicle traffic flow data with the bus traffic flow data obtained from survey to determine the weighted proportion between them by using spectral clustering(SC)method.Besides,a multi-period division program is designed for intersection by using Piecewise Aggregate Approximation(PAA).This paper selects per capita delays as the efficiency indicator to measure intersection traffic efficiency.After VISSIM simulation we find out that the new-control-method's outstanding performance on bus traffic efficiency,which can reduce the per capita delays and meet the public transit-oriented purposes.

关 键 词：城市交通 公交优先 谱聚类 多时段 PAA 

分 类 号：U268.6[机械工程—车辆工程]