Research On Accessibility Of Integrated Passenger Transport Network In Guangzhou Based On ArcGIS

Integrated passenger transport network accessibility refers to a variety of modes of transport with organic convergence of the composition to provide passengers services in the network of nodes to reach the convenience of each other.The level of accessibility determines the degree of social and economic ties between the travel city and the destination city,which strongly affects the socio-economic development of the area.With the rapid development of computer technology and GIS technology,it is possible to analyze the accessibility of road network intuitively and accurately.According to the data of Guangzhou subway network and road network,based on a large number of public transportation travel path query and analysis,summing up the passenger travel rules,considering the characteristics of data analysis of ArcGIS software,the travel destination is divided into two categories,Including travel to the airport and travel to the city center.Based on the above analysis results,the point,line and surface elements of the road network are determined,and the passenger transport network of Guangzhou based on ArcGIS is constructed.Then this paper builds the network data set based on ArcGIS,choosing remoter five town and a total of 124 village as the starting places,and selecting the airport and the downtown area a total of 27 nodes as the destination.Based on the spatial analysis function of ArcGIS,the OD cost matrix is constructed with travel time and travel distance as the cost.The minimum travel resistance of 124 nodes is calculated.The shortest travel time and the shortest travel distance are taken as the evaluation index to construct the comprehensive evaluation model to evaluate the Guangzhou city road network accessibility,and the evaluation results are imported in ArcGIS to grid interpolation analysis,drawing the accessibility diagram.In addition,according to the project requirement of “the 13 th Five-Year Plan for Comprehensive Transportation Development of Guangzhou City”,this paper evaluates the accessibility of the planned road network and compares it with the current road network,and provides suggestions for the development of passenger transportation network.In this paper,the evaluation method of the comprehensive passenger transport network accessibility based on ArcGIS provides a theoretical basis for subsequent evaluation,and provides an important reference for subsequent passenger transport network accessibility evaluation research.