基于预信号的城市快速路出口匝道衔接交叉口控制方法  

Control method for intersections downstream of urban expressway off-ramp using pre-signals

作　　者：陈永恒[1] 吴场建 王鑫[3] 李婉宁 李浩楠 Chen Yongheng;Wu Changjian;Wang Xin;Li Wanning;Li Haonan(College of Traffic and Transportation,Jilin University,Changchun 130022,China;School of Transportation,Southeast University,Nanjing 211189,China;College of Air Traffic Management,Civil Aviation University of China,Tianjin 300300,China;Changchun Urban Planning and Research Center,Changchun 130028)

机构地区：[1]吉林大学交通学院,长春130022 [2]东南大学交通学院,南京211189 [3]中国民航大学空中交通管理学院,天津300300 [4]长春市规划编制研究中心,长春130028

出　　处：《Journal of Southeast University(English Edition)》2023年第1期8-16,共9页东南大学学报（英文版）

基　　金：National Key R&D Program of China(No.2019YFB1600501);Scientific and Technological Developing Project of Jilin Province(No.20190201107JC).

摘　　要：为了提高城市快速路出口匝道与下游衔接交叉口的通行效率,提出了一种基于预信号的出口匝道衔接交叉口控制方法.分析流量流向分布特征,构建衔接区域换道延误计算模型;利用交通波理论,建立预信号上游排队长度和排序区长度模型;考虑主信号配时参数约束和排队长度约束优化,得到预信号配时参数以及预信号设置位置.案例分析结果表明,预信号方法可以显著提高衔接交叉口的通行能力,降低车均延误.通过数值仿真研究了左转交通比例、交通流及匝道衔接段长度对模型的影响,证实了所提模型的有效性和优越性.To improve the traffic efficiency of the urban expressway off-ramp and connected downstream intersection,a pre-signal control method for intersections downstream of the urban expressway off-ramp was proposed.Based on the analysis of the flow distribution characteristics of an off-ramp ground point section,a vehicle lane change delay model in an off-ramp junction area is constructed.Using the traffic shockwave theory,a pre-signal upstream queue length model and sorting area length model are established.Considering the constraints of the main signal timings and queue length constraints,pre-signal timing parameters and pre-signal setting position are optimized.The results of a case study show that the pre-signal method can significantly improve the capacity of the intersection with an off-ramp and significantly reduce the average vehicle delay.The effects of the left-turn traffic proportion,traffic volume,and ramp junction length on the model are studied through numerical analysis.The results demonstrate the effectiveness and advantage of the pre-signal method.

关 键 词：交通工程 出口匝道 预信号 排序区 交通波理论 

分 类 号：U491.3[交通运输工程—交通运输规划与管理]