无收费站双喇叭立交的连接线长度分析  

Analysis of Access Road Length for Double Trumpet Interchange without Toll Station

作　　者：徐旺[1] 李鑫鑫[2] 

机构地区：[1]长安大学公路学院,西安市710064 [2]山东大学土建与水利学院,济南市250061

出　　处：《公路》2017年第10期167-171,共5页Highway

摘　　要：双喇叭互通式立交是我国设计的四路收费互通式立交中一种较为常用的形式,连接线作为双喇叭互通式立交中的一个重要节点,其对双喇叭互通立交内车辆顺畅、高效、便捷地运行等起着至关重要的作用。以连接段交织区车辆的变换车道分析为切入点,研究交织区车辆变换车道的车头安全间隙,进而分析连接段交织区的通行能力,根据双喇叭互通式立交的通行能力推算出连接段交织区的长度,据此确定无收费站双喇叭立交连接线的最小长度;从立交占地、车辆油耗、运行时间成本等,分析对无收费站双喇叭立交连接线的最大长度的限制。The double trumpet interchange is one of the common types in the design of interchanges in China,as an important node in the interchange of the double trumpet interchange,access road plays an important role for the smooth,efficient and convenient operation of the vehicle in the double trumpet interchange.In this paper,through the analysis of the lane changing of the connecting section of the vehicle,the safety clearance of the vehicle lane changing in the weaving area is studied,and then the traffic capacity of the connection section is analyzed,according to the traffic capacity of the double trumpet interchange,the length of the connection section is calculated,the minimum length of the connecting line of double trumpet interchange without toll station is determined.The limitation of the maximum length of the access roads for the double trumpet interchange without toll station is analyzed in terms of occupation area,vehicles fuel consumption and operation time and cost etc.

关 键 词：双喇叭互通式立交 连接线 通行能力 交织 

分 类 号：U412.352[交通运输工程—道路与铁道工程]