Hefei City Based On POI Data And Space Syntax Research On Distribution And Optimization Of Commercial Network

With the improvement of urban infrastructure,construction scale,accessibility of the size of changes in urban commercial spatial layout and spatial structure is also changing.As a sub-central city of the Yangtze River Delta urban agglomeration,the optimized layout of Hefei’s commercial network will provide reference for the cities in Hefei and even the Yangtze River Delta region.First of all,this article summarizes the spatial syntax and big data analysis methods by systematically combing the relevant research theories at home and abroad.Secondly,taking the downtown area of Hefei as an example,using Arc GIS network analysis and nuclear density analysis to calculate the distribution characteristics and service range of commercial outlets,using spatial syntax models to calculate road structure indicators,and using spss software to explore the urban road structure and commercial poi point density Analyze the current situation and problems of the layout of commercial outlets.Finally,the main research results are as follows:(1)In the spatial syntax,the strongest correlation with the commercial poi point density is the road global integration.The greater the global integration value,the stronger the commercial agglomeration ability;it is negatively correlated with the total depth value.The poi density decreases with the increase of the total depth value;the control value and the connection value and the commercial poi density present a wave-like correlation;the commercial poi density first increases and then decreases with the increase of local integration.(2)The study found that in the central and eastern areas of the central city,the density of commercial poi is relatively high,especially near Huaihe Road Pedestrian Street.The layout of commercial poi in the southern and northwestern regions is unreasonable,and there are blind spots for commercial network facilities and services.(3)In response to the above problems,measures to optimize the layout of various types of business are proposed,and the research shows that commercial outlets should be adapted to the development of new business types,integrated with the road traffic system,and unified with the needs of citizens for accessibility.In summary,the core feature of this article is:breaking through the constraints of traditional research methods on the scope,layout,and quantity of urban commercial outlets,combining spatial syntax and big data analysis,and discussing the current distribution and distribution laws of urban commercial layout,which can serve as a future city The research on the optimized layout of commercial outlets provides reference.