Evaluation of Accessibility of Public Transport Facilities Based on Two-step Floating Catchment Area
Public transport facilities are an important part of urban infrastructure and an important tool for residents'daily travelling.Reasonable allocation of public transport facilities can provide convenience for residents'travelling.The study evaluates the spatial dis-tribution pattern and accessibility level of transport facilities in Tianjin by using multi-source data such as POI data and population data,public resource agglomeration,Gaussian two-step floating catchment area method and Gini coefficient.The conclusions are as follows:(1)The spatial distribution of transport facilities shows an obvious"centre-periphery"single-centre circle structure.(2)Under the same time threshold,the accessibility of different transport modes to the nearest transport facilities varies.The distribution of accessibility shows the overall spatial characteristics of high in the centre and low in the surroundings.(3)Under the two modes of transport,the accessibility equity of the six districts within the city is better than that of the four districts around the city,and the trans-port service capacity of the six districts within Tianjin is strong on the whole,while the transport service capacity of the four districts a-round the city is weak on the whole.The study can provide decision-making suggestions for achieving spatial optimal allocation of public transport resources and building a fairer pattern of transport facilities distribution in Tianjin.
urban rail transportpublic transportaccessibilityGaussian two-step floating catchment area method
万方数据
维普
