Structural Characteristics Of Evolution Research On Important Urban Rail Transit Network In China

With the rapid development of economy, population and vehicle ownerships in urban increase day by day. Due to the limit land resource, traffic infrastructure couldn’t meet traffic demand. The unbalance between the traffic supply and traffic demand results in t a series of traffic problems. Urban rail transit becomes one of the most effective ways to ease the problem of traffic for the characteristic of punctuality, comfort and speediness. At present, urban rail transit has rapidly developed in china, and many cities has plan to established urban rail transit. Therefore having a sufficient knowledge of urban rail transit is very important for the planner.Based on complex network, the network topology of urban rail transit has been studied. This tools can present network structure intuitively and easy to study its structural characteristics and inner evolution law. In this paper.we use10urban rail transit to study. Firstly, urban rail network has been illustrated through Space L, then this paper analysis network distribution on GIS platform which showed urban rail networks present an uneven distribution layout who have a core. Secondly, the robustness of urban rail networks have been analyzed based on simulation experiment with Python. Thirdly, the network characteristics of evolution of Beijing, Shanghai, Guangzhou have been studied. It showed that urban rail network structure becomes more and more stability and connectivity. Meanwhile an evolution model has been build which can explore the mechanism of evolution Finally, this paper gives a method to analyze the distribution characteristics of key nodes in Beijing urban rail network。...