小间距互通立交分合流辅助车道最小长度研究  

Research on the Minimum Length of Auxiliary Lanes for Small-spacing Interchange

作　　者：孟园英 孙旭 李宏睿 刘娜 赵娜乐[5] MENG Yuan-ying;SUN Xu;LI Hong-rui;LIU Na;ZHAO Na-le(Chang'an University,Xi'an 710068,China;Guangzhou Expressway Co.Ltd.,Guangzhou 510000,China;China Highway Engineering Consulting Corporation,Beijing 100089,China;Shandong College of Highway Technician,Jinan 253020,China;Highway Research Institute,Ministry of Transport,Beijing 100088,China)

机构地区：[1]长安大学,西安市710068 [2]广州市高速公路有限公司,广州市厅510000 [3]中国公路工程咨询集团有限公司,北京市100089 [4]山东公路技师学院,济南市253020 [5]交通运输部公路科学研究院,北京市100088

出　　处：《公路》2025年第4期327-332,共6页Highway

摘　　要：为提高城市群地区小间距互通立交主线交织区通行能力,提出了基于交织区通行能力确定互通式立体交叉辅助车道最小间距的方法;分析对比了《公路通行能力手册》与HCM关于辅助车道长度与交织区通行能力的相关性;采用VISSIM交通仿真软件分析了2~6级服务水平相应交通量在交织区的运行速度、排队长度,显示辅助车道在100 m~700 m之间,增加辅助车道长度可有效改善交织区运行状态,并根据仿真结果给出了交织区通行能力与辅助车道长度的二次函数关系。研究成果可为城市群地区高速公路、城市快速路等大交通流量、小间距互通几何设计、互通构型、交通管理提供依据。To improve the traffic capacity of the mainline weaving area in small-interval interchanges in urban agglomerations,a method of determining the minimum spacing of the auxiliary lanes of interchanges is proposed based on the traffic capacity of the weaving area.The correlation between the length of auxiliary lane and the capacity of weaving area in the capacity specifications and HCM is analyzed and compared.The VISSIM traffic simulation software is used to analyze the operating speed and queue length of the corresponding traffic volume at service levels of 2 to 6 in the weaving area.The analysis shows that the length of the auxiliary lane between 100 m and 700 m can effectively improve the operating state of the weaving area,and the functional relationship between the traffic capacity of the weaving area and the length of the auxiliary lane is given.The research results can provide a basis for geometric design,interchange configuration,and traffic management of highways,urban expressways,and other roads with high traffic flow and small interchange spacing in urban agglomerations.

关 键 词：互通立交 小间距 辅助车道 交织区 通行能力 

分 类 号：U491.223[交通运输工程—交通运输规划与管理]