1370667 - Transportation Network Invulnerability Enhancement Study

Emergency events can easily cause disruptions or delays in the transportation network, causing network performance to decline. Enhancement the invulnerability of transportation networks contributes to the ability of networks to respond to emergencies. We evaluate the network topology structure by single-layer and multi-layer network statistical indicate, and analyze the invulnerability of the network using deliberate and random attacks using the highway, High-speed railway and aviation networks in the southwest region of China as case studies. The analysis suggests that aviation networks are the least invulnerability among single-layer networks under different deliberate attacks. When the attack proportion reaches 10.77%, the relative loss of network efficiency of each transportation network reaches 92.87%, and the largest connectivity subgraph loss reaches 92.31%. And the highway network is the most invulnerability, when the proportion of attacks reached 30.77%, network paralysis. Multi-layer transportation networks show better resistance to destruction, when the attack proportion reaches 29.74%, the transportation network becomes a single-layer network. But the network can maintain a certain level of operation. This paper suggests that necessity of building a multi-layer transportation network and accelerated to construction of a synergistic aviation-High speed railway-highway intermodal transportation system. This paper provides reference suggestions for the construction of urban traffic terminal expansion.