Research On Healthy Function Of Urban Public Space Based On Linear Physical Activities VGI Data

With the public health problems of the masses becoming more and more serious,residents began to use the urban public space spontaneously for outdoor physical activity.However,the physical activity of the public is obviously affected by the quality and distribution characteristics of the space environment.The constraint relationship between urban public space and physical activity has become a study hot spot.At the same time,modern open data can break through the data quantity and breadth limit of traditional research methods,realize data sharing,real-time recording,dynamic tracking,grid analysis of mass fitness behavior,and more intuitively and accurately reflect the law of public fitness behavior.Based on the above problems,this paper takes mobile open data sources as research data and uses data enhancement to conduct in-depth quantitative research on urban public space that affects linear sports activities.Through research and analysis,the relationship between university campus,urban street,park green space and mass linear sports fitness behavior is established,which provides theoretical support for optimizing urban public space resources.From the application level,through the analysis of the characteristics of urban public space and fitness activities,the urban public space layout planning and environmental design optimization strategy are proposed,in order to provide basis and reference for urban green space system planning and urban public space construction from the health level.Firstly,based on the qualitative research method,this paper puts forward the concept of linear sports activity,spontaneous geographic information,T-S-P(Time-Space-People)model,and analyzes the relationship between three typical spaces and linear sports activities.Then,by using the open data platform with the largest number of online users to obtain VGI shared data of sports and fitness activities,combined with information media and government open source data channels,the dynamic relationship between daily fitness behavior and urban geospatial pattern is established.Thirdly,based on the TSP spatiotemporal analysis model,the VGI-GIS analysis method is used to quantitatively analyze the urban public space and linear sports activities.From the time level,the daily,weekly and seasonal time units are used to analyze the linear sports activities on the university campus.From the spatial level,the spatial movement pattern of the university campus,the environmental characteristics of the cit y street,the spatial environment pattern of the park green space,etc.,analyze the influence of linear sports on the spatial level.The spatial and environmental factors of the activity propose a spatial movement model that promotes linear sports activities.The preliminary conclusion is divided into three points: At the level of health service function,university campus,city street,park green space play different roles;in the spatial environment feature level,campus space structure affects the occurrence of physical activity,street space form and facilities are activity support The key point is that the internal factors of park green space directly determine the attractiveness of sports activities;At the aspect of fitness safety effect,university campuses have more security effects than urban streets and park green spaces,and play a greater role in urban streets and park green spaces in high-risk periods.