基于OpenStreetMap的中国道路密度及多样性空间格局研究

Characteristic and spatial pattern on density and diversity of OpenStreetMap road networks in China

基于OpenStreetMap(OSM)道路数据,探讨OSM中国道路密度与类型多样性的空间格局及相互关系,以期为国家道路规划和设计提供参考。结果表明:1)中国东部OSM道路密度整体较高,中部道路密度内部差异性大,西部道路密度低;2)OSM中国道路多样性高的城市主要分布在沿边沿海以及城市群中心区域的空间格局;3)OSM中国道路高密度高多样性型集中在沿海城市群和内陆经济发达区域,低密度低多样性型集中在广大中国中部地区、西南及东北地区,高密度低多样性型主要毗邻高密度高多样性区域,低密度高多样性型主要分布在内陆边境省份及中心城市腹地。

Based on OpenStreetMap（OSM） road data,explore the spatial pattern of OSM road density and type diversity and their relationship in China,providing references for the national road planning and design.The results show that：1） Higher OSM road density and low OSM road density is located in eastern and western China,respectively.There were internal differences in central China ＇s for OSM road density;2） OSM road diversity in China shows a spatial pattern of high edge along the border,coastal and urban agglomeration.3） OSM road in China,high density and high diversity concentrated in coastal urban agglomeration and inland core cities,Low density and high diversity type mainly distributed inland border provinces,adjacent to core cities,Low density and low diversity type concentrated in the vast central China,southwest and northeast regions,The high density and low diversity type is mainly adjacent to high density and high diversity cities.