原太平互通立交为昆明至安宁高速公路上解决太平镇交通流上下昆安高速的互通立交,形式为单喇叭形,三路交叉,昆安高速通过太平立交与太平大道连接。由于西北绕城高速公路的修建,将有一条支线横跨昆安高速与太平大道直接相连,即三路交叉变为四路交叉,两条道路的交通流在此节点需要相互转换,因此需要对原立交进行改造设计。本文结合太平立交这一实例对立交改造设计选型进行较详细介绍,并给出最后结论与观点。 The original peace interoperability overpass Kunming to the Anning Expressway to solve the Taiping Zhen traffic flow up and down Kunming high-speed interoperability interchange in the form of a single trumpet, three-way cross, Kunming Expressway through Taiping Interchange and Taiping Road connection. Due to the construction of the Northwest Ring Expressway, there will be a branch directly connected to Taiping Avenue across the Kunming Expressway. That is, the three-way intersection will become a four-way intersection. The traffic flow of the two roads needs to be converted at this node. Therefore, The original interchange to transform the design. In this paper, with the example of Taiping Interchange, the design of interchange design is introduced in detail, and the final conclusion and viewpoints are given.