Abstract:SThe project is located at the intersection of Yudong Avenue and Liangqing Avenue. There are many control factors around the nodes, and the relationship between the project and residential area, water body, water system bridge, comprehensive pipe gallery, subway line and BRT must be coordinated, which is difficult to design. At the same time, it covers many types of traffic, including expressways, side roads, express and ordinary buses, slow road, pedestrian, and the traffic organization is complex. Combined with the function positioning and control conditions, the designer made full comparison and selection of the opposite interchange types, and put forward the three-layer butterfly interchange scheme. By adopting the traffic organization idea of layering fast and slow traffic and transforming the main and auxiliary traffic step by step, the function of the interchange was ensured to play efficiently..
