考虑车辆间距的城市合流区仿真模型研究  

Research on Simulation Model of Urban Confluence Area Considering Vehicle Spacing

作　　者：米荣伟 雷渝 帅斌[3,4] MI Rong-wei;LEI Yu;SHUAI Bin(Strait(Fujian)Transportation Engineering Design Co.,Ltd.,Fuzhou Fujian 350017,China;Chengdu Metro Operation Co.,Ltd.Chengdu Sichuan 610058,China;School of Transportation and Logistics,Southwest Jiaotong University,Chengdu Sichuan 611756,China;National Engineering Laboratory of Comprehensive Transportation Big Data Application Technology,Southwest Jiaotong University,Chengdu Sichuan 611756,China)

机构地区：[1]海峡(福建)交通工程设计有限公司,福建福州350017 [2]成都地铁运营有限公司,四川成都610058 [3]西南交通大学交通运输与物流学院,四川成都611756 [4]西南交通大学综合交通大数据应用技术国家工程实验室,四川成都611756

出　　处：《计算机仿真》2025年第3期170-175,248,共7页Computer Simulation

基　　金：国家自然科学基金项目(71173177)。

摘　　要：为更好模拟城市快速路合流区内车辆间距对交通运行状态的影响,基于元胞自动机模型构建考虑车辆间距的城市快速路合流区仿真模型,通过对比仿真与实测结果,验证了考虑车辆间距的城市合流区仿真模型的合理性,并分析了考虑车辆间距条件下合流区内的车辆随机慢化概率、车辆强制换道概率、合流区加速车道长度,对合流区交通运行状况的影响,结果表明:考虑车辆间距的城市合流区仿真模型可以复现实际合流区交通运行状况,随着车辆随机慢化概率的增加,合流区内交通波传递速率明显减缓;随着车辆强制换道概率增加,合流区内产生交通波的次数呈现上升趋势;而合流区内加速车道的增长,不仅会影响合流区内车辆正常运行,还会影响合流区上游、下游车辆运行。In order to better simulate the impact of vehicle spacing on traffic operation status in urban expressway merging areas,a simulation model of urban expressway merging areas considering vehicle spacing is constructed based on cellular automata model.This paper verifies the rationality of the simulation model of urban expressway merging areas considering vehicle spacing by comparing simulation and actual measurement results,and analyzes the probability of vehicle random slowing down,vehicle forced lane changing probability.The impact of the length of the acceleration lane in the merging area on the traffic operation status in the merging area shows that the urban merging area simulation model considering vehicle spacing can reproduce the actual traffic operation status in the merging area.As the probability of vehicle random slowing increases,the traffic wave transmission rate in the merging area significantly slows down;As the probability of vehicles forcibly changing lanes increases,the number of traffic waves generated in the merging area shows an upward trend;The growth of acceleration lanes in the merging area will not only affect the normal operation of vehicles in the merging area,but also affect the operation of vehicles upstream and downstream of the merging area,

关 键 词：智能交通 交通仿真 元胞自动机 合流区仿真模型 

分 类 号：U491[交通运输工程—交通运输规划与管理]