Research On Spatial Characteristics And Optimization Of Commercial Center In Downtown Hefei From The Perspective Of Big Data

With the advent of the era of big data,the discussion of business center has shifted from the business structure and characteristics based on traditional field research to the research of business center boundary,influencing factors and consumer perspective.However,most of the domestic researches on business centers are concentrated in the coastal cities and other first tier cities,and less attention is paid to the central and western cities.With the rise of the central and western cities,the development of their business centers has also changed dramatically.As a typical representative of the central cities,Hefei is in the stage of rapid development in recent years.After Hefei was listed as a charming new first tier city in2020,and its GDP for the first time exceeded one trillion,it is of practical significance to study Hefei Business Center,and meanwhile the study also has important reference for research of other central and western cities in China.Hefei is took as the research object.Firstly,The development characteristics of business centers in different stages of Hefei after the founding of the People’s Republic of China is studied,and the development mechanism of business centers in different stages is discussed;secondly,based on Baidu POI data,by observing the spatial distribution characteristics of business,kernel density combined with hot spot analysis method is used to identify the boundary range of business centers in central urban area,and the boundary range is modified through road grid.Concering bussiness scale,quality,external factors,the business centers can be classified into city level,sub city level,district level and residential district level,and the spatial pattern characteristics of the business center are summarized.Finally,the identified business centers are evaluated according to nine factors of three dimensions of aggregation level,service level and vitality level,so as to understand the differences in level and spatial distribution of the business center under the condition of each factor.According to comprehensive evaluation based on weighting different index,the development trend of the business centers are analyzed and optimization ideas are provided.