道路网格网模式识别的关键指标设计

Key Index Design of Road Grid Pattern Recognition

道路网是地图上的一类重要要素,道路网模式识别是道路网综合的基础,识别地图上形态各异的道路网模式,或提取特定模式的道路网是道路网综合研究的难点问题。现有的大量研究成果,多注重定性研究道路网的模式,从定量角度研究的较少。本研究从格网模式道路网的形态特征出发,提取决定道路网格网模式的3个关键指标,运用数据统计分析的方法,测定了格网模式道路网的3个定量指标的范围值,为道路网格网模式识别和综合奠定了基础。

Road network is an important element on the map.Road network pattern recognition is the basis of road network generalization.Identifying road network patterns with different shapes on the map or extracting road networks with specific patterns is a difficult problem in road network generalization research.Among a large number of existing research results,it pays more attention to the qualitative research on the mode of road network,and less from the quantitative point of view.Starting from the morphological characteristics of grid pattern road network,three key indexes determining the road grid pattern are extracted,and the range values of three quantitative indexes of grid pattern road network are measured by using the method of data statistical analysis,which lays a foundation for road grid pattern recognition and generalization.