摘要
针对我国山区高速公路隧道与互通立交出口小间距路段车辆运行效率低、道路交通事故频发等问题,提出在隧道内设置车辆允许换道区域的方法。首先,对发生在隧道内的交通事故空间分布特征进行分析以确定隧道内可以单向设置变换车道的区域;其次,提出允许换道区域的交通标志版面设置方法和标线设置形式;然后,根据驾驶人行为特性计算得到在不同服务水平下允许换道区域的最小长度,计算结果表明在二级服务水平下,隧道内允许换道区域的最小长度为228 m。最后,通过Vissim仿真验证了在隧道内设置允许换道区域对提高车辆运行效率、提升高速公路安全水平有显著的效果。
In regard with the problem of low vehicle operation efficiency and frequent traffic accidents in the sections with small distance between expressway tunnels and interchange exits in mountainous areas in China, in this paper a method to set up lane changing areas for vehicles in the tunnels is proposed. Firstly, the spatial distribution characteristics of traffic accidents in the tunnel are analyzed to determine the areas where lane change can be set in one direction. Secondly, the setting method of traffic sign layout and the setting form of line marking in the area where lane change is allowed are put forward. Then, according to drivers’ behavior characteristics, the minimum length of lane changing area in different service levels is calculated. The calculation results show that the minimum length of lane changing area in the tunnel is 228 m under the second service level. Finally, through Vissim simulation, it is verified that setting lane changing area in the tunnel has a significant effect on improving vehicle operating efficiency and highway safety level.
作者
尚婷
吴鹏
李松凌
夏瑜
SHANG Ting;WU Peng;LI Song-ling;XIA Yu(School of Traffic&Transportation,Chongqing Jiaotong University,Chongqing 400074,China;CCCC First Highway Engineering Group Co.Ltd.,Beijing 101100,China)
出处
《公路》
北大核心
2022年第1期228-234,共7页
Highway
基金
重庆市科技局基础与前沿面上项目,项目编号csts2019jcyj-msxmX0695
重庆市教委青年科技项目,项目编号KJQN201900722
重庆市中小学创新人才培养工程项目计划,项目编号CY200704。
关键词
交通工程
隧道
小间距
换道区域
VISSIM仿真
traffic engineering
tunnel
small spacing
lane change area
Vissim simulation
