Determining An Optimal Airport Location For Country Capital Case Study: Capital Region Nusantara

The airport is one of the vital objects that must be owned by a national capital to support transportation, economic and defense security activities. For the presence of this airport to work properly and provide full support to the National Capital, planning is needed in determining the strategic location of the airport. By using a Geographic Information System (GIS) we can present spatial data and can analyze parameters for planning airport development including the type of land cover, conditions of disaster vulnerability, the existence of a road network, the existence of river areas, land suitability conditions, land slope and air defense points. By using the AHP (Analytical Hierarchy Process) method, the weight of each parameter is obtained to determine the magnitude of the influence of one parameter on other parameters. The weight for each parameter is 7% for land cover, 6% for disaster-prone, 17% for soil carrying capacity, 16% for road access, 15% for rivers, 27% for land slope, and 12 % for air defense points. Then from the results of the weighting overlay analysis carried out using ArcGIS software and following the parameters and values of each sub-parameter used, there are 5 areas that are considered suitable to be used as locations for the construction of a new airport in the IKN Nusantara area. The 1st area is in the district. Waru, North Penajam Paser Regency, which has an area of 543.05 Ha, is 27 Km from IKN; The 2nd with 16 Km, located in the Sepaku with an area coverage of about 311.11 Ha; The distance of the 3rd location with IKN is 12 Km and has a wide coverage of around 251.98 Ha located in the Penajam and Sepaku; and the 4th and 5th locations are in Sepaku has an area of272.91 Ha and 67.78 Ha, respectively 16.4 Km and 19.6 Km apart.