The Research Of Kunming Rail Transits Based On Complex Network Theory

Urban rail transit, as a part of urban transport system, plays an important role in solving the problems of the urban transport. Based on the complex network theory, this thesis constructs the station network and transfer network of Kunming rail transits by the method of space L network and space P network for all6planned lines and103stations of Kunming rail transits. Such network characteristic quantities as node degree, betweenness, closeness centrality, clustering coefficient, average path length, network density and their distributions are calculated and analyzed, the important nodes are found and the networks’topological graphs based on degree, betweenness, closeness centrality are drawn. The results show that in both the station network and transfer network of Kunming rail transits, most of the nodes have small degree, while only a small number of the nodes have large degree; moreover, the cumulative degree distributions of both networks approach exponential distributions.