互通式立交入口拥堵区的控制设计研究  

Research on Design of the Congestion Zone of Interchange Entrance

作　　者：王显光[1] 陈硕[1] 

机构地区：[1]交通运输部科学研究院,北京100029

出　　处：《交通与运输》2012年第H12期125-128,共4页Traffic & Transportation

摘　　要：互通式立交入口区是影响立交整体运行可靠性的关键点段。为了减轻入口合流区的拥挤,提高互通式立交的整体可靠性,提高车辆行驶的安全性,在交通需求增大到一定程度时,要采用一些交通控制设计。根据互通式立交匝道入口区域的特点,对高/快速路网可靠性作用较大的互通立交匝道和主线的控制设计进行了研究,分析了入口合流区的几何和交通特性,对匝道和主线分别提出了不同控制设计,即匝道入口控制设计和主线车道运行约束设计。Interchange entrance area is the key point which affects the overall operational reliability of an Interchange. In order to alleviate the crowded ramp merging area, improve the overall reliability of the interchange and improve traffic safety, when traffic demand increases to a certain extent, traffic control strategies should be used. According of the characteristics of the interchange ramp entrance area, the control strategy of interchange and the mainline which affect the reliability of highspeed road network most has been researched.Analyzing the geometric and traffic characteristics of the ramp merging area, different control strategies on the ramp and the mainline are proposed, that is ramp access control strategy and the main line lane running constraint strategy.

关 键 词：互通式立交 入口影响区 可靠性 控制设计 

分 类 号：U412[交通运输工程—道路与铁道工程]