Route selection design is particularly important in the process of highway design.The terrain can be fully mastered and constructed by using digital elevation model,and the three-dimensional model of highway route selection can be constructed by road vectorization,which is helpful to judge the merits of route selection scheme.On the basis of summarizing the establishment methods and technologies of digital elevation model,this paper makes use of practical engineering cases to make digital elevation model,and respectively carries out simulation calculation on the results of several route selection modes,analyzes various route selection schemes and makes selection,hoping to provide necessary ideas and references for highway route selection design.
digital elevation modelThree-dimensional simulationhighway alignment