以既有枢纽增加进出站线路立体疏解设计为例,阐述了展线设计的一般要求,展线地点选择应考虑的问题,展线路基最优设计方案的选择,以及展线设计的优化。使展线设计达到绕行距离短、节省用地,工程量少,工程费用低的目的。 Taking the example of the three-dimensional ease-dismantling design of existing inbound and outbound routes, this paper expounds the general requirements of the design of the exhibition line, the questions to be considered when choosing the exhibition line, the optimal design of the exhibition line and the optimization of the design of the exhibition line. So that the design of the exhibition line to achieve a short distance around the bypass, saving land, less construction, low construction costs purposes.