清连一级公路是部分控制出入的一级汽车专用公路,沿线设有一些互通式立交、分离式立交、通道、天桥和众多平交。在实施高速化升级改造时,互通立交总体规划及方案设计需要综合考虑路网功能、沿线城镇交通需求、地形地质条件、既有互通立交的合理利用和旧路线形指标等因素,与完全新建的山区高速公路互通立交总体规划及方案设计差异较大。 Qinglian Class I Highway is a part of the controlled access to a car highway, along the line with a number of interchange, separate interchange, access, flyover and many peace. In the implementation of high-speed upgrading, the overall planning and program design of interworking overpass must take into consideration factors such as road network function, urban traffic demand along the route, topographic and geological conditions, rational utilization of existing interchanges and old road alignment indicators, Mountain highway interchange over the master plan and program design vary widely.