过饱和交叉口信号配时参数设置方法  

Setting Method of Signal Timing Parameters at Over-Saturated Intersection

作　　者：曹弋[1,2] 王忠宽[3] 左忠义[1] 

机构地区：[1]大连交通大学交通运输工程学院,辽宁大连116028 [2]大连海事大学交通运输工程博士后流动站,辽宁大连116026 [3]大连医科大学现代教育技术中心,辽宁大连116044

出　　处：《大连交通大学学报》2016年第1期1-5,共5页Journal of Dalian Jiaotong University

基　　金：中国博士后科学基金面上基金资助(2014M561214);辽宁省博士科研启动基金资助项目(20141109)

摘　　要：为了适应过饱和信号交叉口的交通运行特性,研究其最佳周期时长与各相位绿信比参数的设置方法.选择大连市西南路与五一路交叉口开展交通调查.综合考虑过饱和交叉口的平均行车延误及通行能力两方面因素,提出信号周期时长的优化方法.综合考虑机动车流量及排队长度,提出各相位绿信比的设置方法.利用实测交通数据,对调查交叉口进行信号配时设计,并与现状配时方案进行对比分析.研究表明,该方法以适当增加平均行车延误为代价,提高过饱和交叉口的通行能力,有利于疏解该类交叉口的车辆排队现象.In order to adapt to traffic operation characteristics of over-saturated signalized intersection,the setting methods of optimal cycle length and green splits of every phase are studied. Selecting Xinan Rd. and Wuyi Rd. intersection as the study object,traffic investigation was carried out. Considering the two factors of the average vehicles delay and capacity at over-saturated intersection comprehensively,the optimization method of signal cycle length was proposed. Considering the traffic volume and queue length,the setting method of the green splits of every phase was also proposed. Using the measured traffic data,the signal timing scheme of the investigated intersection was not only designed,but also compared with the existing situation. The research indicates that,using this method,the average vehicles delay will be increased at over-saturated intersection,and the capacity can also be increased. This method is beneficial to relief the phenomenon of vehicles queuing at this kind of intersection.

关 键 词：交通工程 信号配时 周期时长 绿信比 过饱和交叉口 

分 类 号：U491.54[交通运输工程—交通运输规划与管理]