特殊横断面普通公路车道布置方案研究分析

Research and analysis on lane layout scheme of ordinary highway withspecial cross-section

二级双车道公路是中国普通国省干线公路的主体,在公路网中起着举足轻重的作用,研究双车道公路横断面因素对交通安全的影响,对提高整个路网的交通安全意义重大。依据实际项目对二级双车道特殊横断面普通公路车道设置现状进行分析,并结合横断面设置要素组合数值分析及比选,最后提出推荐的横断面布置方案,为双车道公路的安全设计提供理论支撑。

The secondary two-lane highway is the main body of the national and provincial trunk highways in China,which plays a pivotal role in the highway network.The study on the influence of cross-section factors of the twolane highway on traffic safety is of great significance to improve the traffic safety of the whole road network.Based on the actual project,this paper analyzes the current situation of lane layout of ordinary two-lane highway with special cross-section,and combines the numerical analysis and comparison of cross-section layout elements,and finally puts forward the recommended cross-section layout scheme,which provides theoretical support for the safety design of two-lane highway.