高速公路改扩建道路设计的安全问题  

Road Safety Design of Expressway Reconstruction and Expansion in China

作　　者：李德慧[1] 孙小端[1] 刘小明[1] William Fitzgerald 

机构地区：[1]北京工业大学北京市交通工程重点实验室,北京100022 [2]美国联邦公路局

出　　处：《北京工业大学学报》2006年第10期913-918,共6页Journal of Beijing University of Technology

基　　金：交通部科技项目(2005353H02010).

摘　　要：由于受到客观条件的限制,中国20世纪80年代末至90年代初期修建的高速公路存在一些设计上的问题和事故隐患,而且普遍存在着交通量过大、事故频发等情况,产生了很大的扩建需求．从中央分隔带、路肩、路侧、横坡、路缘石、互通式立交的加减速车道长度等方面,对影响高速公路安全的因素进行分析,并结合国外设计上的理念,对目前中国高速公路存在的问题进行了剖析,对高速公路的扩建提出了建议。The expressways which were built at the end of the 1980＇s and the beginning of 1990＇s exist some design deficiency due to the absence of national technical standard at that time, and this leads to safety hidden trouble. At the same time, almost all the expressways exist problems like volume over load, too many crash accidents. So, broadening is a good chance to improve. The paper analyzes the design factors which influence the traffic safety and evaluates the current Chinese design specification on median, shoulder, roadside, curb and the ramp＇s length of the interchange. Some suggestions which may be useful to improve the road safety are also put forward.

关 键 词：高速公路 扩建 路侧设计 中央分隔带 护栏 

分 类 号：U491.5[交通运输工程—交通运输规划与管理]