高速公路互通式立交选型 摘要 : 互通式立体交叉公路是高速公路网的主要节点， 高速公路互通式立交的选型关系对路 网功能作用的发挥起着关键的作用。 互通的选型应满足路网规划的要求， 同时其位置和型式 亦是高速公路路线走向的一个重要制约因素。 Abstract: Expressway interchange is the main node of expressway network, and its selection plays a key role in playing the function of the road network. Selection of interchange should meet the requirements of network planning, while its location and type is also a major constr