基于开放街道地图和兴趣点的上海城市功能区识别与分析

Identification and analysis of Shanghai urban functional zones combined open street map and POI data

城市功能区的空间分布与特征是对超大型城市的科学规划管理的重要参考。本文以上海全市范围为研究区,获取了上海市开放街道地图路网和水体数据与兴趣点数据,划分最小功能单元,采用核密度估算等方法,识别分析上海市城市功能区空间分布和特征。结果表明:上海市各类型用地整体呈“一核多心”分布特征,可分为29类城市功能区,主要为综合功能用地区和混合功能用地区;识别结果与实际情况相符合,可以为上海的城市规划与管理提供参考。

The spatial distribution and characteristics of urban functional zones are important for the scientific urban planning and management of megacity.This study firstly recognized minimum study unit by Shanghai's Open Street Map(OSM) roads and water body data,and the Point of Interest(POI) data.Then,we calculated kernel density and identified the spatial distribution and characteristics of Shanghai's urban functional zones.The results show that,the distribution of various urban functional zones represent characteristics of “one core and multiple sites”.There are 29 types of urban functional zones in Shanghai,mainly comprehensive functional zones and mixed functional zones.The identification result is consistent with the actual situation and can be used as reference for urban planning and management in Shanghai.