关键词: 空中交通相依网络, 脆弱性, 熵, 最大连通度, 交通流损失比

Abstract: The airport, air route and air control sector constitute an air traffic interdependent network. When the node is disturbed, the network transportation performance is degraded, causing network vulnerability. This paper proposes a measure for the vulnerability of air traffic dependent networks. Three layer networks of the airport, air route, and air control sector have been established; an air traffic interdependent network model has been established based on the air traffic regulations and the logical connections among layer networks. In the two failure modes of stochastic disturbance and deliberate disturbance nodes, the paper comes up with the corresponding algorithm and analyzes the structural vulnerabilities of the interdependent networks by employing the maximum connectivity and the structural entropy. The traffic entropy and the loss ratio of traffic flow are used to study the functional vulnerability of the interdependent network with the corresponding algorithm. The research shows that the stochastic disturbance has a greater influence on the air traffic interdependent networks than the deliberate disturbance; the networks' source of structural vulnerability and functional vulnerability are the airport networks; and the vulnerability of the network is related to the connections of the layer networks and the mismatch of the air traffic volume.

Key words: air traffic interdependent network, vulnerability, entropy, the maximum connectivity, the loss ratio of traffic flow