On the Hierarchical Component Structure of the World Air Transport Network

In an era of global interconnectedness, transportation networks serve as vital conduits for international relations, trade, and cultural exchange. Previous research has extensively examined the worldwide air transportation network at three distinct levels: global, regional, and national, with contributions from various researchers shedding light on different facets of the network. Focusing on densely connected regions that extend from other dense areas, this study unveils the hierarchical structure of the global air transport network. Results emphasize the multi-level nature of the network, from significant regions to country-based divisions and ultimately to the intricate hub-and-spoke model. One observes increased hub dominance and negative assortativity values as one delves deeper into the network’s hierarchy. This investigation brings a more comprehensive understanding of the global air transport network and its intricate hierarchical organization.