Study On The Correlation Of Street Network And Function Distribution In Shenyang Metro Station Area

This paper mainly uses the theory and method of Space Syntax to study the relationship between street network and station function distribution in metro station,in order to prove the correlation between the structure logic and function distribution in the street network.Firstly,the definition of station space,street network,spatial configuration and structure density is briefly described.Then the line segment model of Shenyang Urban Street network is analyzed,and the small scale network analysis radius is found,the degree of conformity and the degree of selection are greatly correlated with the length and number of nodes,and the fitting degree is greater than 0.7,and the degree of conformity and selectivity can describe the "outing movement" of human flow,it shows that the degree of vitality of a region depends mainly on the structure density of the topology geometry of the street network,which is a small scale urban space defined by a walking radius,it can be seen that the activity degree of a station space is related to the density of its street network structure.On this basis,according to the structure density difference of the street network in the station area,the station space is divided into three types:Street network dense station space,street net sparse station space and street network Free Station space,in addition,the corresponding relationship between the spatial and structural parameters of the station space is obtained.Then the function distribution in the station space is summarized.The function in the station space is divided into the service function,the work function and the residence function,the typical station space research and analysis,the statistical station space function distribution and the proportion,the correlation between the structure density and the function distribution mode of the station space street network is summarized.Combining the results of the two chapters above,the paper analyses the correlation between the structure value and the function distribution of the street network in the station area,by calculating the fitting degree between the integration degree and the value range of the selection degree and the function distribution,the relation between the street network and the function distribution is summarized,then according to the correlation analysis between the structure value and the function network point and area distribution,the paper summarizes the numerical interval of street configuration parameters suitable for different structure density in station space.Finally,the paper summarizes the interaction factors between the street network and the function distribution and applies the research.The structure and density adjustment of the street network can optimize the existing station space,in addition,the structure value of the optimized street network is tested with the existing function distribution,and the optimization results of the street network in the site are measured by the analysis of fitting degree.Based on the analysis method of spatial syntactic line segment model,this paper proves that the function distribution of subway stations corresponds to the inner structure of the street network,to maximize the spatial activity of the station.The results show that by analyzing the spatial configuration of the street network in the station area,we can simulate the movement of human flow in the station,and then predict the distribution of various functions in the station area.It can optimize the distribution of the street network and function in the existing stations,and the quantitative data support of each kind of function distribution forecast of new metro station stations in cities.