Using minimum spanning tree technique (MST), this exploratory research
was done to optimize the interrelation and hierarchical network design
of Indonesian’s airports. This research also identifies the position of
the Indonesian’s airports regionally based on the ASEAN Open Sky Policy
2015. The secondary data containing distance between airports (both in
Indonesia and in ASEAN), flight frequency, and correlation of Gross
Domestic Regional Product (GDRP) for each region in Indonesia are used
as inputs to form MST networks. The result analysis is done by comparing
the MST networks with the existing network in Indonesia. This research
found that the existing airport network in Indonesia does not depict the
optimal network connecting all airports with the shortest distance and
maximizing the correlation of regional economic potential in the
country. This research then suggests the optimal networks and identifies
the airports and regions as hubs and spokes formed by the networks.
Lastly, this research indicates that the Indonesian airports have no
strategic position in the ASEAN Open Sky network, but they have an
opportunity to get strategic positions if 33 airports in 33 regions in
Indonesia are included in the network