Research On The Differences Of Street Functions From The Perspective Of Dual Network

Under the background of stock planning,urban renewal is a key task of urban construction.Street is an important part of urban built environment and urban public activity space.Under the background of rapid urbanization,there is a tendency of decline of public life and single function.Based on the analysis of street network configuration,space syntax puts forward the function and morphological characteristics of foreground network and background network in urban life,which provides a new perspective for street research.The study of street function differences based on dual network analysis is helpful to provide reference for Urban Street Renewal according to different street life needs.Based on the concept of spatial syntactic foreground network and background network,this paper uses Open Street Map map data,cadmapper website data,Google map,baidu map and other tools to collect the basic data of urban street network,uses spatial syntactic line model to model,and uses NACH,NAIN,CHOICE,Metric mean depth R1000 metric to distinguish and sort out the foreground network and background network of urban street,It also interprets the dual network relationship to clarify the differences and connections between the foreground network and the background network.Based on the above,the samples of foreground street and background Street are determined.Through field investigation and street view map comparison,the data of street commerce and travel crowd are analyzed,such as the average width of street shops,the average distance of street intersection,business type,business brand,active travel crowd,traffic flow,etc.Through the comparison of survey data,this paper analyzes the functional differences between foreground street and background street,The conclusions are as follows: there are slight differences in the street function of street configuration relationship,but it is difficult to get the rule based on the current sample research;There are obvious differences in the distribution of commercial formats,the average length of shops along the street and the proportion of brands between the two types of streets;There are obvious differences between the two groups in terms of active travel crowd,travel mode and traffic flow.The difference between foreground street and background Street indicates that foreground Street covers more micro economic activities;Background streets carry more urban culture.The organic renewal of the city can preserve and construct social activities reflecting cultural diversity,which is conducive to strengthening the existing social characteristics and representing the unique urban cultural connotation.According to the functional differences between the foreground street and the background street,the street renewal design of suixian urban renewal project is carried out.Based on the sorting out of the dual network of suixian street,this paper selects the foreground Street Central Street and the background Street Yuanshan road to carry out the street renewal demonstration.Based on the concept of foreground network and background network of space syntax,this paper interprets the differences and connections between foreground network and background network through space syntax operation of dual network of four urban streets in China.On this basis,different streets are selected for function and use field research and basic data analysis to study the differences of street functions under the dual network perspective,so as to provide reference for the organic renewal of urban streets,enrich urban street life,and alleviate the problems of decline and function simplification of urban public life under the stock planning.