总结道路选取的研究现状,分析在道路的缩编更新过程中,道路要素选取需要考虑的要素指标.介绍一种道路选取方法,综合考虑道路的等级、长度、网眼面积、区域道路密度、是否是悬挂链等几何、语义和拓扑信息,模拟人类在缩编更新时的思维过程,实现道路的自动选取,并进行试验,验证方法的有效性.%By summing up the research of road selection it analyzes the indicators of road elements selection during road generalization based updating, and provides the method of a road selection which refers to the road length, degree, mesh area, regional road density, geometry information, semantic information and topological information such as whether it being hanging chain, simulating human process of thinking during generalization based updating,realizing road automatic selection and the experimental effectiveness.
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