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  • 城市建设
  • 文章编号:1009-6000(2020)07-0042-09
  • 中图分类号:TU984.1    文献标识码:B
  • Doi:10.3969/j.issn.1009-6000.2020.07.006
  • 项目基金:国家自然科学基金项目“消减颗粒物空气污染的城市绿色基础设施多尺度模拟与实测研究”(5177081497)。
  • 作者简介:姜佳怡,千叶大学园艺学部,博士生研究生; 戴菲,通信作者,华中科技大学建筑与城市规划学院,教授,博士生导师; 章俊华,千叶大学园艺学部,教授,博士生导师。
  • 基于POI数据的城市功能结构对比研究 ——以北京、上海为例
  • Comparative Study of Urban Functional Structure Based on POI Data: A Case Study of Beijing and Shanghai
  • 浏览量:
  • 姜佳怡 戴菲 章俊华
  • JIANG Jiayi DAI Fei ZHANG Junhua
  • 摘要:
    以北京、上海为研究对象,基于2018 年北京市及上海市的兴趣点数据,将城市空间划分为若干1k m×1k m 研究单元,统计研究单元内各类P OI 数据占比,进行城市功能区识别与特征分析。分别对两城市的市域范围及中心城区城市功能结构进行对比,并以混合功能区占比衡量功能结构合理性。结果表明:上海市混合功能区占有数据区比值约为北京市的3.32 倍,两城市内占比最高的两类单一功能区分别为交通与居住,上海市整体城市功能结构优于北京。研究首次提出“混合程度”概念,以单元内6 类城市功能要素间占比的平均标准偏差衡量单一功能区及混合功能区内部结构的合理性,测度两城市功能结构及混合特征,结合城市发展背景,分析差异成因机理及对规划建设的启示。
  • 关键词:
    POI数据城市功能区功能结构对比研究
  • Abstract: Taking Beijing and Shanghai as research objects, the urban space was divided into 1000m×1000m research unit based on the POI data of Beijing and Shanghai respectively. Then, as for the proportion of various types of POI data in each research unit, the identification and feature analysis of urban functional zones were counted. Especially, functional structure of the urban area and the central urban area of two cities were calculated separately, and the proportion of mixed functional areas was used to measure the rationality of functional structure. The results show that the ratio of mixed-use functional areas in Shanghai is about 3.32 times as much as that in Beijing, and the two single-use functional areas with the highest proportion in the two cities are traffic and residence, respectively. The overall urban functional structure of Shanghai is better than that of Beijing. Additionally, the concept of “mixing degree” which takes the average standard deviation of the proportion among six types of urban functional elements in a unit was put forward for the first time, to measure the rationality of the internal structure of single function area and mixed function area, the functional structure and mixed characteristics of the two cities. Combined with the background of urban development, this paper analyzes the cause mechanism of the difference and its enlightenment to the planning as well as construction.
  • Key words: POI (point of interest); urban functional-zones; functional structure; comparative study
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