A Study On The Spatial Structure Of Cycling-suitable Cities In The Public Bicycle-sharing Era

The explosive development of bicycle sharing in 2016 has promoted the return of bicycle travel habits of urban residents.In this paper,the urban spatial topological structure suitable for riding is analyzed.Firstly,the research scale is divided into different levels,and the spatial topological structure suitable for riding is refined according to the order of scale from large to small.Taking Beijing,Tianjin and Zhangjiakou as large-scale comparative objects,based on the measured traffic in recent years,the rideability of cities is reflected.According to the rideability of different cities and the spatial parameters,the urban road network model is calculated and analyzed.The large-scale analysis of urban hierarchy shows that a good road topology connection is the basis for a city to ride.The spatial parameters of standardized angle integration degree of medium radius of motion have a strong explanatory effect on the road network structure of bicycling cities.The 11 research blocks in Tianjin are abstracted as 11 contrast units to analyze the spatial structure of the suitable pedestrian blocks in the city.Besides the spatial parameters of each scale radius,the functional space(POI),all building volumes and metro traffic stations of the city are considered.The cycling degree of 11 blocks and the above independent variables are used for regression analysis.It is found that the space syntax parameters of the standardized angle integration degree of the mesoscale radius of motion have a strong interpretation on the topological logic of the spatial structure of bicycling cities.The mesoscale study fully demonstrates the influence of spatial function(POI)on cycling behavior.On this basis,the small-scale cycling factors are analyzed.The main consideration is the division of road space,the POI around road space and the basic spatial syntactic parameters.The results of the analysis once again confirm that POI has a significant impact on riding comfort,and the division of riding space has an impact mainly on the spatial experience of riding.Further detailed exploration of non-motor vehicle traffic shows that there are obvious differences between shared bicycle and private bicycle in the choice of bicycle space.Shared bicycle and office building space have significant correlation,which can be used to alleviate the parking chaos of shared bicycle.The analysis of spatial topology structure is used to predict road traffic flow,which provides design basis for design.