考虑车流变化的交叉口时段划分方法  

Signal Period Division Method of Intersection Considering Traffic Flow Variation

作　　者：张鹏[1] 陈涛 孙超 李文权[2] ZHANG Peng;CHEN Tao;SUN Chao;LI Wenquan(School of Automobile and Traffic Engineering,Jiangsu University,Zhenjiang 212013,China;School of Transportation,Southeast University,Nanjing 210096,China)

机构地区：[1]江苏大学汽车与交通工程学院,镇江212013 [2]东南大学交通学院,南京210096

出　　处：《武汉理工大学学报（交通科学与工程版）》2024年第5期841-845,851,共6页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家自然科学基金(71801115);江苏省高校自然科学基金(13KJB580003)。

摘　　要：文中整理分析交叉口交通流数据,计算各时间序列最佳周期时长.确定周期变化阈值进行初步时段划分,并将小于最短周期时长的时段进行合并.考虑交通流的变化,计算各转向相位时长,确定变化阈值及划分条件,进行二次时段划分.选取苏州某交叉口应用本文的时段划分方法,结果表明:该方法获得的时段划分可以较好地刻画流量变化趋势,时段划分更加科学合理,交叉口全天车均延误降低8.6%.The intersection traffic flow data were sorted and analyzed,and the optimal cycle length of each time series was calculated.The periodic change threshold was determined to divide the initial periods and merge the periods less than the shortest period.Considering the change of traffic flow,the duration of each steering phase was calculated,the change threshold and division conditions were determined,and the secondary time period was divided.An intersection in Suzhou was selected to apply the time division method in this paper.The results show that the time division obtained by this method can better describe the traffic change trend,and the time division is more scientific and reasonable,and the average delay of vehicles at the intersection is reduced by 8.6%.

关 键 词：时段划分 周期时长 转向流量 信号控制 

分 类 号：U491[交通运输工程—交通运输规划与管理]