城市POI的空间数据分析与可视化表达

随着科技的迅速发展,地理空间数据已经成为人们日常生活中的一部分,城市POI数据则是涵盖城市公共基础设施属性信息与位置信息的大型地理空间数据。针对现阶段对城市POI数据利用程度不充分的问题,本文运用密度分析、热点分析以及服务范围分析等方法研究大连金普新区城市POI数据的空间分布特征。结果表明:大连金普新区城市POI数据呈现"二区八带多点"的分布格局,金石滩街道、中长街道、先进街道以及大李家街道医疗、教育、娱乐设施较为完善,且远离工厂,比较宜居。本研究可为市民生活、工作、学习、娱乐提供参考,也可为城市发展、管理维护提供服务。

Spatial Data Analysis and Visualization of Urban POI

With the rapid development of science and technology,geospatial data has become a part of people’s daily life. Urban POI data is a large-scale geospatial data covering the attributes and location information of urban public infrastructure. In view of the insufficient utilization of urban POI data at this stage,this paper uses density analysis,hotspot analysis and service scope analysis to study the spatial distribution characteristics of urban POI data in Dalian Jinpu New District. The results showed that the urban POI data in Dalian Jinpu New District presented the distribution pattern of"eight areas and multiple points in the second district". The medical,educational,and entertainment facilities in Jinshitan,Zhongchang,Xianjin,and Dalijia streets were relatively complete and far away from the factory. More livable. This study can provide a better reference for citizens’ life,work,study,and entertainment. It also provides services for urban exhibitions,management,and maintenance.