基于货车启动延误的交叉口信号优化模型  

Signal optimization model of intersections based on truck startup delay

作　　者：常玉林[1,2] 赵磊 孙超 张鹏[1] CHANG Yulin;ZHAO Lei;SUN Chao;ZHANG Peng(School of Automobile and Traffic Engineering,Jiangsu University,Zhenjiang 212013,China;Jiangsu Key Laboratory of ITS,Southeast University,Nanjing 211189,China)

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013 [2]东南大学城市智能交通江苏省重点试验室,江苏南京211189

出　　处：《电子设计工程》2024年第13期1-6,共6页Electronic Design Engineering

基　　金：国家自然科学基金(71801115);中国博士后科学基金(2021M691311);江苏高校哲学社会科学研究项目(2022SJYB2221)。

摘　　要：为研究货车停车启动行为对信号控制交叉口车辆延误的影响,根据货车的行驶特性给出了货车启动延误定义。基于概率统计原理及道路交通流特征,推导了欠饱和、过饱和两种状态下货车启动延误的计算方法。进一步以最小车均延误为目标,建立了基于货车启动延误的交叉口最小延误信号周期计算模型。通过实例仿真,对实测数据、理论数据和仿真数据进行对比分析。结果显示,与现有延误计算模型相比,该文延误计算模型理论值与仿真值的平均误差降低了40.9%。且设计配时方案与Webster最佳信号周期方案相比,车均延误降低了10.7%;与传统最小延误方案相比,车均延误降低了5.6%,有效验证了模型的适用性。To study the influence of truck parking and starting behavior on vehicle delay at signalized intersections,a definition of truck startup delay was proposed according to the driving characteristics of trucks.Based on the principle of probability and statistics and the characteristic of the traffic flow,the calculation methods of truck startup delay under the two states of undersaturation and oversaturation were derived.Aiming at the minimum average vehicle delay,a method for calculating the minimum delay signal period at intersections based on truck startup delay was proposed.Through example simulation,the measured data,theoretical data and simulation data were compared and analyzed.The results show that:compared with the existing delay calculation model,the average error of the theoretical value and the simulation value of the delay calculation model in this paper is reduced by 40.9%.Compared with the Webster best signal model,the average vehicle delay in this design scheme is reduced by 10.7%.Compared with the traditional minimum delay scheme,the average vehicle delay is reduced by 5.6%.The simulation results effectively verify the applicability of the model.

关 键 词：交通工程 货车启动延误 车均延误 信号控制 

分 类 号：U491[交通运输工程—交通运输规划与管理]