Research On Urban Street Space Optimization Based On Spatial Disorder Theory

In the context of the normal development of the epidemic,public health has become the main direction of urban development and spatial design.Healthy city has become a new trend of planning in recent years.Combined with the current urban renewal,healthy street space has gradually become a new goal of street development.Healthy streets give full play to the health service function of streets through four paths of physical activity,physical environment,street safety and social interaction,and provide a healthy travel environment and life style for urban residents.Spatial disorder refers to the phenomenon of insufficient spatial quality,spatial disorder and decline of street health caused by backward development of street space.To improve the quality of urban space,it is necessary to pay attention to the problems of urban street space development fault caused by extensive urban development and construction,and solve the problem of street space disorder.Based on the perspective of urban health,this paper analyzes the causes of spatial disorder of urban streets,and puts forward four influence paths of urban streets to promote public health,through physical activity,physical environment,street safety,social communication to improve group health.The five key environmental dimensions affecting street spatial traffic,interface,space,greening and facilities are sorted out.A complete system was established to summarize spatial disorder measurement indicators,measure the map of street spatial disorder indicators,interpret the street space optimization means under the influence path of street health,provide a basis for street space planning and management,and finally propose the optimization strategy of urban street space.In the era of big data,taking the street space of Daoli Old town in Harbin as an example,this paper studies the off-site built environment audit method based on street view pictures and adopts the spatial disorder measurement method to measure the pros and cons of street space on a large scale,providing strategies for the street space optimization of Daoli Old town in Harbin.