Structural Complexity And Community Characteristics Of Global International Aviation Network

As an important carrier of air transport infrastructure,the quality of air network affects the operation and development of air transport,and has a significant impact on international cultural exchange and international social and economic development.Global international aviation network structure analysis can deepen the understanding of international aviation network and aviation links between countries,so as to identify the weak sections of the international aviation market,and provide a theoretical basis for developing new routes,reasonably distributing routes and improving route efficiency.By analyzing the community division and structural characteristics of the global international aviation network,we can accurately analyze the internal structural characteristics of the global international aviation network and the aviation links between countries under the action of composite factors.Based on the global flight data in 2019,this thesis constructs the global international aviation network.Combined with the complex network theory and community theory,this thesis deeply analyzes the structural characteristics of the global international aviation network from the aspects of the overall structure and internal structure of the network.Firstly,the basic topological index and central index of the network are calculated with gephi software,and analyzed with complex network theory.It is found that the global international aviation network has the characteristics of scale-free network and small world network.The overall connection scale and aviation accessibility of the network are good.A few sub cities undertake the main aviation transit function,and most cities have almost no transit capacity.Secondly,the Newman fast algorithm is used to divide the cities in the network into a collection of nodes closely connected with aviation,and the community division results are visualized with Arc GIS software.The spatial distribution analysis and structural level research of the divided communities are carried out by using the relevant theories of community structure.According to the data characteristics of route network,the community structure is divided into unauthorized data,voyage as the weight,flight frequency as the weight,and voyage flight frequency as the comprehensive weight.It is found that the nodes in the global international aviation network have significant geographical cluster characteristics,but some cities overcome the obstacles of geographical location and maintain close contact.This thesis analyzes the changes of aviation connection strength of aviation network under no right and various weights,and the changes of community structure and aviation connection strength of each continent.Finally,based on the routes between the internal nodes of the community,an independent community aviation network is constructed,and the internal topology of a single community is analyzed.Based on the above analysis,it can provide a theoretical reference for the international route layout of Chinese airlines.