Commercial Spatial Pattern Analysis In Shenzhen Based On POI Data

The spatial layout and spatial structure of urban commerce are constantly changing with the expansion,reconstruction and combination of urban space.Mastering the spatial characteristics of business is of great significance to urban planning,spatial development of business activities,and government regulation.As a window for China's reform and opening up,Shenzhen has become a world-class city with a certain influence and attractiveness.It is a representative of China's rapid urbanization and one of the most prosperous commercial cities in South China.This paper takes Shenzhen as the research area,and based on Shenzhen POI data in 2016,extracts Shenzhen commercial POI data after data cleaning,correction,and other preprocessing are completed.The method of combining the nuclear density estimation and the Getis-Ord G~*was introduced to identify hot spots of commercial and commercial service facilities in Shenzhen,and analyze the degree of spatial aggregation of commercial service facilities,and on this basis,combine with the commercial development planning of Shenzhen,to classify the commercial center of Shenzhen and analyze the status and questions of the commercial center.The main results are as follows:(1)The distribution characteristics of commercial space in ShenzhenShenzhen's commercial service facilities are basically clustered in the "two-axis two belts" area;The commercial service facilities in Shenzhen are basically distributed along the axis of the traffic line,showing the "polar core + axial"distribution pattern;For the spatial distribution of different types of commercial service facilities,financial facilities are mainly concentrated in the Futian-Luohu-Nanshan area with the subway line No.1 as the axis.Entertainment facilities are concentrated in the Futian-Luohu area,and the accommodation clusters are scattered.(2)The hot spots for business activities20 core hot spots,14 sub core hot spots,and hot spots of various commercial service facilities were identified.(3)Business center systemB Shenzhen has formed a multi-level,multi-core business center ranking system,which is distributed along the main line of transportation,showing a "beaded" spatial pattern.The main problems include:?The spatial distribution of the commercial center is unbalanced,centrally distributed in the central urban area,the western coastal area and the central area.?The hierarchical structure of the business center system is unbalanced,and the district level business center is relatively small.Suggestions for future development are put forward according to the problems in the analysis.