Robustness Analysis Of Aviation Network Based On Complex Network

The aviation network has vital social and economic and cultural values,and it is also an important resource for civil aviation transportation.Researching and analyzing the robustness of aviation networks can provide decision-making support for the layout and optimization of aviation networks in my country,provide early warning for relevant departments,and help reduce losses caused by emergencies.The paper uses a complex network method to analyze the robustness of China’s aviation network from both static and dynamic perspectives.The specific content is as follows:This paper constructs an undirected weighted aviation network model and systematically analyzes several common topological features.The results show that the Chinese aviation network conforms to the basic characteristics of complex networks,is a small-world network and follows a power-law distribution.Based on the analysis of the characteristics of the aviation network topology,a static robustness evaluation strategy of the aviation network considering node failure and edge failure is proposed.It is measured by the relative size of the largest connected subgraph and the weighted network efficiency,and the nodes are analyzed under different attack strategies.The impact of(airport)failure and edge(route)failure on the static robustness of aviation networks.It is found that when most of the nodes or edges in the network fail randomly,the Chinese aviation network can still maintain the connection and the network is robust.However,under deliberate attacks,the closure of a few airports or the grounding of routes will cause the network to quickly and extensively collapse and the network is fragile,And weighted node betweenness and weighted edge betweenness attacks are more aggressive to the network.By studying the changes in the robustness of the aviation network when a single airport or single route fails,and identifying the key airports and key routes in the aviation network,it is found that the network robustness in the northwest and southwest regions is weak.According to the characteristics of China’s aviation network,a practical aviation network load capacity model is established,and the influence of different attack methods,geographical distance weights and node degree weights on the dynamic robustness of aviation networks is analyzed through simulation experiments.It is found that there is an obvious stepping phenomenon in the capacity coefficient β.When the capacity coefficient is greater than the critical threshold,the network’s ability to withstand cascading failures is greatly improved.The network attack method based on the maximum betweenness has the greatest impact on network efficiency and connectivity.It is necessary to avoid closing airports with large betweenness.The smaller the geographical distance weight and the greater the node degree weight,the stronger the aviation network’s ability to resist cascading failures.