基于VISSIM仿真的环形交叉口改善方案研究  

Study of Roundabout Improvement Plan based on VISSIM Simulation

作　　者：康雅玲 连培昆 郑似月 江政毅 岳小泉 KANG Yaling;LIAN Peikun;ZHENG Siyue;JIANG Zhengyi;YUE Xiaoquan(College of Transportation and Civil Engineering,Fujian Agriculture and Forestry University,Fuzhou 350002,China)

机构地区：[1]福建农林大学交通与土木工程学院,福州350002

出　　处：《交通工程》2022年第1期45-50,共6页Journal of Transportation Engineering

基　　金：福建省自然科学基金面上项目(2020J01580).

摘　　要：传统的环形交叉口在城市建设初期交通量不大的情况下被作为一种重要的交通组织方式,但随着城市道路交通流量的增大,一部分城市环形交叉口已不能满足日益增长的交通需求,其弊端日益凸显,交叉口作为城市道路网的重要节点,对整体路网通行能力影响重大,因此,有必要对环形交叉口进行优化改善.基于此,本文以福州市马尾区君竹环岛为例,对该交叉口进行现状调查,分析了交叉口存在的问题,提出了优化方案,并应用VISSIM交通仿真软件进行建模分析,对比各个方案下的通行能力.仿真结果表明,对无信号控制的环形交叉口进行渠化及信号控制,可明显改善交通运行状况,减少交通拥堵,提高交叉口通行能力.Traditional roundabouts are used as an important means of transportation organization when the traffic volume is not large in the early stage of urban construction.However,with the increase of urban road traffic flow,some urban roundabouts can no longer meet the increasing traffic demand,and its disadvantages are becoming increasingly prominent.As an important node of the urban road network,intersections have a significant impact on the overall traffic capacity of the road network.Therefore,it is necessary to optimize and improve roundabouts.Based on this,this paper takes Junzhu Roundabout in Mawei District,Fuzhou City as an example,investigates the current situation of the roundabout,analyzes the existing problems of the roundabout,proposes an optimization plan,and uses VISSIM traffic simulation software to conduct modeling analysis and compares each plan.The simulation results show that channelization and signal control of roundabouts can significantly improve traffic conditions,reduce traffic congestion,and improve intersection capacity.

关 键 词：交通工程 环形交叉口 VISSIM仿真 信号控制 

分 类 号：U491[交通运输工程—交通运输规划与管理]