山区高速公路隧道与互通立交出口的间距  

Research on the distance between expressway tunnels and interchange exits in mountainous areas

作　　者：祝可为 陈荣峰 ZHU Kewei;CHEN Rongfeng(School of civil Engineering,Fujian Chuanzheng Communications College,Fuzhou 350007,China;College of Civil Engineering,Fuzhou University,Fuzhou 350108,China)

机构地区：[1]福建船政交通职业学院土木工程学院,福建福州350007 [2]福州大学土木工程学院,福建福州350108

出　　处：《福建工程学院学报》2021年第6期545-549,共5页Journal of Fujian University of Technology

基　　金：福建省交通运输科技项目(202032)。

摘　　要：针对单向双车道高速公路隧道与互通立交出口间距只能满足识别视距的情况,分析了车辆驶出隧道出口的换道过程,结果表明,在极端困难情况下,隧道出口的明适应时间能够缩短到1 s;预期驶出高速的车辆必须在隧道前的路段完成变道,确保驶出车辆在车道外侧上行驶,才可以保证运营期交通行车安全。Analysis was conducted of the process of changing lanes through the exit of the tunnel when the distance between the one-way two-lane expressway tunnel and the interchange exit can only meet the requirements of the identification line of sight.Results show that the following conditions must be met in extremely difficult situations:(1)the light adaptation time at the exit of the tunnel can be shortened to 1 s;(2)vehicles that are expected to drive out of the expressway must change lanes before entering the tunnel to ensure that the vehicles drive on the curb lane to ensure traffic safety during the operation period.

关 键 词：交通工程 山区高速公路 隧道与互通立交 最小出口间距 交通安全设计 

分 类 号：U491[交通运输工程—交通运输规划与管理]