Increasing the resilience of air traffic networks using a network graph theory approach

Air traffic networks are essential to today's global society. They are the fastest means of transporting physical goods and people and are a major contributor to the globalisation of the world's economy. This increasing reliance requires these networks to have high resilience; however, previous events show that they can be susceptible to natural hazards. We assess two strategies to improve the resilience of air traffic networks and show an adaptive reconfiguration strategy is superior to a permanent re-routing solution. We find that, if traffic networks have fixed air routes, the geographical location of airports leaves them vulnerable to spatial hazard.