Research On Urban Resident Activity Space Based On Mobile Phone Signaling Data

With the rapid development of information technology,mobile phone signaling data plays an important role in traffic travel planning,trajectory data mining and urban activity space research as a new type of data source.Compared with the traditional census and questionnaires,mobile phone signaling data has the advantages of wide coverage,strong objectivity,large sample size and high data accuracy.Using mobile phone signaling data,the spatial and temporal distribution of urban population and the dynamic characteristics of resident activities can be accurately obtained.It will help us to further enrich and expand existing urban space research,and also provide important research basis for guiding and improving existing urban planning in the future.This research is based on the theory of time geography,urban planning,spatial analysis and visualization,Guiyang residents' mobile phone signaling data and city interest point data were applied to this study.In this research,the daily time and space behaviors of residents in Guiyang City were described,the spatial and temporal patterns of residents in different types of activities were analyzed,and the spatial structure of urban groups was quantitatively excavated.In addition,the study explores the spatial differentiation of occupational space patterns and the spatial differentiation of residents' leisure activities from two days,including working days and rest days.The research results are combined with the existing functional area distribution of Guiyang City,the urban resident activity system and the mixed land use calculation results,then comprehensively evaluate the implementation of the existing urban master plan,provide empirical support for urban spatial layout,population surveys,and urban built environment assessments.1.The research results show that the overall activities of residents in Guiyang have a certain schedule of work and rest,the crowded areas on working days and rest days are basically the same as the sub-dense areas,the distribution of signaling density presents a single center feature dominated by the Nanming and Yunyan areas.The distribution of day and night space on weekdays shows the flow characteristics of “concentrating from the center and then gradually spreading out”.2.The functional area of the mixed activity in Guiyang presents the characteristics of “dual-core,three-band and multi-point” in the overall form,there is a big difference in the frequency of signaling activities of residents' functional zones on weekdays and rest days,the residential activity center of urban space is still limited to the old city of Guiyang.3.The distribution of urban occupational clusters is consistent with the power law distribution.After calculation,the spatial morphological characteristics of different grades of clusters all show certain rules.Not only that,the spatial characteristics of the dislocation distribution of occupational residence clusters make the population distribution of all districts and counties in Guiyang uneven,and the various activities of residents on working days and rest days reflect their high dependence on the central city.4.The mixed use of urban land has a positive correlation with the activities of urban residents in Guiyang.The richer the land use type of urban unit plots,the higher the land function diversity,and the denser the urban land use types,the higher the urban residents' active level.Simultaneously,urban commercial consumption land is more attractive to people than other functions.