基于干线车流排队特性的相位差优化模型  

Arterial traffic offset optimization based on queue characteristics at adjacent intersections

作　　者：曲大义[1] 杨晶茹 邴其春[1] 王五林 周警春 QU Da-yi;YANG Jing-ru;BING Qi-chun;WANG Wu-lin;ZHOU Jing-chun(College of Automobile and Transportation,Qingdao University of Technology,Qingdao 266520,China)

机构地区：[1]青岛理工大学汽车与交通学院,山东青岛266520

出　　处：《吉林大学学报（工学版）》2018年第6期1685-1693,共9页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(51678320)

摘　　要：基于相邻信号交叉口的车流到达特性,分析了干线协调控制的内在机理,协同考虑车流运行至下游交叉口的6种状态,将延误分为车队头部受阻、车队尾部受阻和车流顺畅3类。针对各种状况下关联交叉口间的排队集结与消散,计算排队长度,并将排队长度引入延误计算过程,建立了干线协调控制相位差优化模型。选取青岛市长江路干线5个相邻信号交叉口群进行模型验证,明确了关联交叉口相位差与延误的定量关系,确定了以延误最小为目标的相位差。结果表明,相位差模型提升了干线协调控制系统的优化效果,延误时间平均减少27.70%。Based on the arrival characteristics of traffic flow between adjacent intersection,the mechanism of arterial coordination was analyzed first considering six states of traffic flow arriving at downstream intersections.Then,the traffic delays were divided into three types,named motorcade head suffocated delay,motorcade trail suffocated delay and zero delay.Third,according to the aggregation and dispersion of the queue between associate intersections under different conditions,the length of the queue was calculated,which was then introduced into the calculation of the delay. Finally,an arterial coordination control optimization model was established.Five intersections along the Coastal Road in Qingdao were selected as an example to verify the proposed model.The quantitative relationship between offset and delay in correlated intersections was obtained,and the minimum delay as the target of offset was determined.The results indicate that the offset model based on queue characteristics is feasible and effective in arterial traffic coordination control.

关 键 词：交通运输系统工程 干线协调控制 相位差 延误分析 排队长度 

分 类 号：U491[交通运输工程—交通运输规划与管理]