高速公路改扩建道路设计的安全问题

基金项目:

交通部科技项目(2005353H02010).

详细信息

Road Safety Design of Expressway Reconstruction and Expansion in China

1. Beijing Key Laboratory of Traffic Engineering, Beijing University of Technology, Beijing 100022, China;
2. University of Louisiana, Lafayette 70504 USA;
3. FHWA, Washington D. C 20590, USA

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。
- 高速公路 /
- 扩建 /
- 路侧设计 /
- 中央分隔带 /
- 护栏
Abstract: 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.
- expressway /
- reconstruction and expansion /
- roadside designd /
- median /
- guide rails

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