面向精细化导航的城市道路网末梢扩展  

Expansion of urban road network ends for refined navigation

作　　者：袁嘉铭 杨敏[1] 余华飞 赵炜 YUAN Jiaming;YANG Ming;YU Huafei;ZHAO Wei(School of Resource and Environmental Science,Wuhan University,Wuhan Hubei 430072,China)

机构地区：[1]武汉大学资源与环境科学学院,湖北武汉430072

出　　处：《北京测绘》2023年第2期172-177,共6页Beijing Surveying and Mapping

基　　金：国家自然科学基金(42071450)。

摘　　要：城市道路网数据通常面向市政社区间主体道路采集得到。由于缺乏对社区内部细小分支通道的描述表达,导致居民出行、物流配送产生“最后一公里”的导航盲区问题。针对该问题,本研究尝试将城市社区建筑物间通道融入道路体系中,设计了通过德洛内(Delaunay)三角网支持下的邻近分析与骨架线提取对道路网末梢分支进行扩展的方法。试验案例分析表明扩展后的城市道路体系能够保障导航起始点到达建筑物门栋进口,有利于解决道路导航的最后一公里盲区问题。Urban road network data are usually collected from main roads between municipal communities.Due to the lack of description and expression of the small branch passages in the community,the problem of"last mile"navigation blind spots occurs in residents'travel and logistics distribution.In response to this problem,this study attempted to integrate the corridors between buildings in urban communities into the road system,and designed a method to expand the terminal branches of the road network through proximity analysis and skeleton line extraction supported by Delaunay triangulation.The test case analysis showed that the expanded urban road system could ensure that the navigation starting point reached the entrance of the building door,which was beneficial to solve the problem of the blind spot of the last kilometer of road navigation.

关 键 词：道路网 精细化导航 社区建筑物 骨架线提取 DELAUNAY三角网 

分 类 号：P228.4[天文地球—大地测量学与测量工程]