交通运输研究2016，Vol.2Issue(2)：19-25,7.DOI:10.16503/j.cnki.2095-9931.2016.02.004
改扩建高速公路中央分隔带开口长度及位置安全性研究--以洛阳至三门峡高速公路扩建工程为例
Safety Evaluation on Reconstructed Highway Median Separator Opening Length and Location-A Case Study of Luoyang-Sanmenxia Expressway Reconstruction Project
摘要
Abstract
In order to reduce the potential driving risk of the highway reconstruction project caused by the reservation of median separator, it is important to optimize and evaluate the safety of length and loca⁃tion of median separator in entrance and exit of highway interchanges and service areas. Based on the in⁃terchange flow theory, critical gap theory, queuing theory, and the analysis of driving behavior character⁃istics of interchange and conflict, taking Luoyang-Sanmenxia Expressway reconstruction project as anexample, the length of the initiating section, the middle section and the terminal section of the median separator opening were calculated, and the method of setting up the opening length of the old road at the interchange and service area before and after the one side widening was determined. After the analysis of its safety, the rational location of the median separator opening was confirmed considering the layout of the notice sign boards of the approaches. The research results show that the length and the position set⁃ting of the median separator opening of the expressway reconstruction project can be effectively acquired by quantitative calculation, which can effectively induce the driver to pass in and out the interchange flow zone with safety and comfort.关键词
交通安全/中央分隔带/单侧加宽/开口长度/安全评价Key words
traffic safety/median separator/one side widening/opening length/safety evaluation分类
交通工程引用本文复制引用
徐倩,马娟,吕能超,胡月..改扩建高速公路中央分隔带开口长度及位置安全性研究--以洛阳至三门峡高速公路扩建工程为例[J].交通运输研究,2016,2(2):19-25,7.基金项目
国家自然科学基金项目 （）
交通运输部应用基础研究项目 （）
国家科技支撑计划项目 （）
