摘要
以西安市主城区为研究区,采用OSM道路数据,通过计算道路网密度、识别多层次道路社区分析空间结构。结果表明:①从整体空间上看,西安市主城区道路网发展水平整体较高,以老城区为中心,在主城区北部区域逐渐向外圈层式扩展分布;②从全局尺度来看,西安市主城区表现出多个中心共同发展的城市结构,老城区与周围各区互相影响,形成新的道路空间分布结构,由内向外逐渐扩展,将城市中心分散化,形成多个中心;③从局部尺度来看,除长安区外,各区内部发展均衡,以碑林区、新城区和莲湖区为中心,圈层式向外发展,呈现出中心强外圈弱的空间结构。
Taking the main urban area of Xi’an as the research area,we used OSM road data,and analyzed the spatial structure by calculating the road network density and identifying multi-level road communities.The results show that①from the overall spatial perspective,the road net-work development level in main urban area of Xi’an is relatively high as a whole.The road network is centered in the old urban area and gradual-ly expands to the outer circle in the northern area of main urban area.②From the global scale,the urban area of Xi’an shows the urban structure of the common development of multiple centers.The old urban area and the surrounding districts interact with each other,forming a new spatial distribution structure of roads,which gradually expands from inside to outside,dispersing the urban center and forming multiple centers.③From the local scale,except Chang’an District,the internal development of each district is balanced,with Beilin District,Xincheng District and Lianhu District as the center,and the development of outer circle,showing a spatial structure of the center is strong and the outer circle is weak.
作者
刘艺炫
左涛
雷倩芳
陈恒恒
杨晓东
LIU Yixuan;ZUO Tao;LEI Qianfang;CHEN Hengheng;YANG Xiaodong(Aerial Photogrammetry and Remote Sensing Group Co.,Ltd.,China National Administration of Coal Geology,Xi’an 710199,China;Enterprise Technology Center of China Coal Aerial Survey and Remote Sensing Group Co.,Ltd.,Xi’an 710199,China)
出处
《地理空间信息》
2024年第1期49-52,共4页
Geospatial Information
基金
国家自然科学基金青年基金资助项目(61902313)。
关键词
道路网密度
复杂网络
社区
城市结构
road network density
complex network
community
urban structure
