固定OD路径分配下的路网通行能力信号优化模型  

Signal optimization model for traffic capacity of road network under fixed OD path assignment

作　　者：卢凯[1] 周凌霄 张晓春 何淑霖 林科 LU Kai;ZHOU Lingxiao;ZHANG Xiaochun;HE Shulin;LIN Ke(School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,China;Shenzhen Urban Transport Planning Center Co.,Ltd.,Shenzhen 518000,China;Guangdong Zhenye UCTRL Technology Co.,Ltd.,Zhongshan 528405,China)

机构地区：[1]华南理工大学土木与交通学院,广州510640 [2]深圳市城市交通规划设计研究中心股份有限公司,深圳518000 [3]广东振业优控科技股份有限公司,中山528405

出　　处：《东南大学学报(自然科学版)》2025年第2期544-552,共9页Journal of Southeast University:Natural Science Edition

基　　金：国家自然科学基金面上资助项目(52172326,61773168);广东省基础与应用基础研究基金资助项目(2023A1515012815);亚热带建筑与城市科学全国重点实验室开放课题资助项目(2023KA04);广东省城市交通数字孪生企业重点实验室资助项目(2022B1212020005).

摘　　要：为测算与优化路网通行能力,针对断面、路段、路网3个层级,根据交叉口信号相位结构与配时参数,分别给出各层级通行能力的计算方法。通过建立路网通行能力优化模型与信号交叉口总延误优化模型,在保证路网通行能力最大的基础上,实现路网信号交叉口总延误最小化,以兼顾路网通行能力与运行效率整体最优。案例仿真结果表明,所提模型能够较为准确地计算路网通行能力,模型计算结果与仿真实验数据偏差为1.60%。与Synchro优化方案相比,所提模型优化方案可使路网通行能力提高5.11%,车均延误时间减少12.28%,车均停车次数下降19.10%,取得了较为明显的优化效果。To calculate and optimize the traffic capacity of road network,the calculation methods for the traffic capacity of each level are given based on the intersection signal phase structure and timing parameters,considering three levels including cross section,road section,and road network.By establishing optimization models of the traffic capacity and total delay at signalized intersections in road network,the minimum total delay of signalized intersections can be achieved while ensuring the maximum traffic capacity of road network,taking into account the overall optimization of both traffic capacity and operational efficiency of road network.The simulation results of the case show that the proposed model can accurately calculate the traffic capacity of road network with a deviation of 1.60%between the model calculation and the simulation data.Compared with the Synchro optimization scheme,the proposed model optimization scheme improves the traffic capacity of road network by 5.11%,reduces the average delay by 12.28%,and decreases the average number of stops by 19.10%,achieving a significant optimization effect.

关 键 词：交通工程 城市路网 通行能力 OD流量 信号优化 延误 

分 类 号：U491.54[交通运输工程—交通运输规划与管理]