利用美国NCHRP研究成果,分析我国的平曲线车速和横向加速度的关系,并结合道路线形连续性的观点,提出适合我国的用曲线车速和横向加速度来控制曲线设计的方法。我国大西北以丘陵和山区地形为主,公路线形比较复杂,因此希望本研究能为其曲线设计提供一定的依据。 Based on the research achievements of NCHRP in the United States, this paper analyzes the relationship between the velocity of the flat curve and the lateral acceleration in our country and puts forward the method of controlling the curve design with the curve velocity and the lateral acceleration that suits our country. The northwestern China is dominated by hills and mountainous terrain, and the road shape is rather complicated. Therefore, it is hoped that this study can provide some evidences for its curve design.