Perpustakaan Digital ITB

With the existence of more than 17,000 islands to be connected, the Air Transport Network (ATN) is an integral part of Indonesia’s transportation infrastructure, supporting economic growth, tourism, and regional connectivity. However, the ATN is vulnerable to disruptions due to natural disasters or operational failures, making its robustness exceptionally critical. Accordingly, this study aims to provide a comprehensive evaluation of the Indonesian Air Transport Network (IATN) robustness using Complex Network Theory, with a focus on the network’s structural integrity under various disruption scenarios. A stochastic simulation approach was employed to evaluate the IATN's robustness by characterizing random and targeted airport combinations representing failure patterns, providing information on network stability under disruptions. The analysis is based on Indonesian domestic air traffic data in 2018, comprising 140 airports and 885 routes, which after data cleaning were used for network modeling. The results reveal that the IATN exhibits Small World network characteristics, demonstrating efficiency in connectivity but vulnerability to targeted attacks. Airports such as UPG, CGK, KOE, KNO, AMQ, and MDC repeatedly emerged as critical nodes, affirming their central role in maintaining IATN's robustness.