Study on the distribution density of commercial facilities in the main urban area of shenyang based on POI data

As an important space of shopping, leisure, entertainment and communication for residents, the number and layout of urban commercial outlets are directly related to the daily convenience of residents. Under the background that the old city has entered the stock development and key construction of the new district, how to strengthen the macro-control and management and guide the healthy and orderly development of urban commerce is an important research topic of urban construction. Using the POI (Point of Interest) data of commercial facilities, taking daily shopping activities closely related to residents' survival needs and quality of life as starting points, this paper explores the distribution of commercial facilities in Shenyang's main urban area from the urban scale and community scale, and focuses on the matching relationship of the density level between residential and commercial distribution on the community scale. That is, based on the result of residential density analysis evaluates the matching relationship between the density distribution level of shopping facilities and the residential density distribution level from the macro and meso perspectives, which is of practical significance to the reasonable allocation of community commercial service facilities.