A Study of Air Cargo Network of Airliner and Freighter at Major Airport in Northeast Asia through Social Network Analysis

Operating a stable and diverse air cargo network is a very important field not only for airline profits but also for securing the stability of the national cargo network. Air cargo networks are largely divided into belly cargo and freighter cargo, and since the two types have different transport characteristics and have complementary relationships with each other, they must be analyzed separately. This study aims to compare and analyze the two types of air cargo networks by the connection centrality, mediation centrality, and eigenvector centrality for major airports in Northeast Asia through Social Network Analysis(SNA). As a result, both major indicators of Hong Kong Airport and Incheon Airport were at the top, but Hong Kong Airport was particularly excellent in freighter indicators, showing competitiveness in cargo. On the side of Incheon Airport, this may suggest that it is necessary to secure competitiveness in freighter cargo.