文家场枢纽拥堵原因分析与缓堵保畅改造方案研究  

Analysis on the Causes of Congestion in Wenjiachang Hub and Research on the Renovation Scheme of Relieving Congestion and Keeping Smooth

作　　者：倪旭 钟烈 王道雄 NI Xu;ZHONG Lie;WANG Daoxiong(Sichuan Highway Planning Survey,Design&Research Institute Co.,Ltd.,Chengdu 610041,China)

机构地区：[1]四川省公路规划勘察设计研究院有限公司,成都610041

出　　处：《路基工程》2025年第2期30-34,共5页Subgrade Engineering

基　　金：四川省交通运输科技项目(51000024T000011450354)。

摘　　要：文家场枢纽作为成温邛高速公路与绕城高速公路交通转换节点,日常拥堵严重。基于春节期间及日常交通量对路段交通运行特征进行评价,对文家场枢纽拥堵原因进行分析,确定拥堵是由于主线高速公路服务水平不足、车道数不平衡、变速车道设置不规范、车道内设桥墩、视距不足等原因造成;提出缓堵保畅改造方案设计原则及思路,并对文家场枢纽范围成温邛高速公路主线、立交匝道及分合流端部设计进行方案优化,比选出满足缓堵保畅功能的文家场枢纽互通方案。Wenjiachang hub,as a traffic conversion node between Chengdu—Wenjiang—Qionglai Expressway and Chengdu Ring Expressway,had serious daily congestion.Based on the evaluation of the traffic operation characteristics of the road section for daily traffic volume during the Spring Festival,the reasons for the congestion of the Wenjiachang hub were analyzed.The result shows that,the congestion is caused due to insufficient service level of the main line expressway,imbalance of the number of lanes,non-standard setting of the variable speed lane,piers in the lane,and lack of sight distance.This paper puts forward the design principles and ideas of the renovation scheme for relieving congestion and keeping smooth,optimizes the schemes for the main line,interchange ramp and confluence end design of Chengdu—Wenjiang—Qionglai Expressway in Wenjiachang hub,and compares and selects the interchange scheme of Wenjiachang hub satisfying the function of relieving congestion and keeping smooth.

关 键 词：既有枢纽互通 交通流特征 拥堵原因分析 改扩建方案 方案比选 

分 类 号：U412.352.1[交通运输工程—道路与铁道工程]