平面交叉口左转车道的几何设计方法研究

Study on Geometric Design of Left-Turn Lane in Grade Intersection

针对平面交叉口左转车道的设计方法进行研究,参考发达国家平交路口安全设计规范,分析现有的设计技术规范中不合理的因素,从左转车道的布置、车道宽度的确定、车道长度的确定、过渡段的设计等几个方面,进行了详细的分析研究,提出了平面交叉口左转车道的几何设计方法。

Aming at the design method of left-turn lane in highway intersection, referring to the design guides in developed countries, the deficiencies in the design guide of our country were analyzed. The layout designing, width and length defining and transitional section designing of the left-turn lane were studied in detail. The geometric design method of left-turn lane in the highway intersection is suggested.