一、路线选定的步骤和效益费用分析公路设计作业,粗分的话,可以说由路线选定和设计两个阶段组成。路线选定阶段的工作是首先在五万分之一比例尺的地图上,决定大体线位,然后做五千分之一的成图,沿着大体线位设定几条比较路线,分别对每条路线进行比较分析,直到确定进行详细设计的路线。将这个决定下来的路线,在 First, the route selected steps and benefits Cost analysis Road design homework, coarse points, it can be said by the route selection and design of two stages. The course of the route selection phase is to first determine the general line position on the map of one fifth of a scale and then make a map of one in 5000 to set several comparison routes along the general line position, Article comparative analysis of the route, until you determine the detailed design of the route. The route that decided this down