Study On The Topology Of Chinese Air Transport Network

In recent years,with the rapid development of domestic economy,the civil aviation in our country entered the stage of development by leaps and bounds,the scale of China's air transport network is gradually expanding.By 2015,in the territory of China,there are 204 navigable city of civil aviation flight regularly(excluding Hong Kong, Macao and Taiwan),the number of route of domestic regular flight is 2428,formed Chinese air transport network that includes three center hub of Beijing,Shanghai and Guangzhou,provincial capitals as regional hub,other navigable city as branch,and join 204 domestic cities(excluding Hong Kong,Macao and Taiwan).With the need for more efficient and convenient travel services,these will bring the establishment of the new airline of Chinese air network,therefore,China's civil aviation will face the question how to establish a reasonable and efficient route.Based on the needs of the actual development of Chinese air transportation network,this thesis will study Chinese aviation passenger transportation network.This thesis summarized the concept of network, statistical properties(that is, the degree and degree distribution, average path length, cluster coefficient),and introduces the topology of the network in detail regular network,random network and complex network,in addition, the two main form of complex network is small-world networks and scale-free networks.This thesis found the topology of the reasonable network is a power-law distribution scale-free network on the basis of the network theory,from the perspective of network parameters and formation mechanism.Introduced the network topology of three methods(i.e., the graph theory, statistical physics method and social network analysis) of the principle and application in the network research,By comparing the advantages with disadvantages of the three methods,the paper used graph theory methods to study on China's air transport network topology.Used graph theory method,took navigable city as nodes and took direct flights between two cities as edges,air transport network model is established,the paper analyzed empirically Chinese air transport network topology of 2015.Research shows that Chinese air transportation network is a small-world network,the degree distribution obeys the double period of power-law distribution,compared with 2005-2013 of aviation network topology,its number of nodes increased,shows that the scale of Chinese air transportation network is gradually expanding;The average degree of Chinese aviation network topology increased,shows that city traffic connection is increasing constantly;Average path length is gradually decreasing,and the change of the statistical characteristics indicates that the degree of convenience of Chinese aviation network is in enhancement gradually;Cluster coefficient shows the tendency that is gradually decreasing firstly,and then is gradually increasing,shows that center hierarchy characteristic of Chinese air transport network has experienced the development that is from increase to decrease.Analyzed two factors that influence Chinese air transportation network topology:the city economy(GDP)and the urban scale(population),the result shows that the impact of the city economic on aviation network topology structure is greater than the impact of the urban scale on aviation network topology structure.