The growth of projection of international passenger movement are presently beyond the existing capacity of NAIA IPT1. Clark International Airport as well as Subic international Airport are both too far and inaccessible thus necessitating the "fast tracking" of a new international passenger terminal to be situated at Villamor Airbase, and with the capacity to handle at least 13 million passengers annually.
Accredited social scientists from the University of the Philippines conducted the social survey. Actual measurement of noise at NAJA vicinity was undertaken at various points covering a 24 hour period. Soil borings were undertaken. Samples I of TSP in the vicinity were taken and analyzed. Other baseline data on surface I water quality, hydrogeology, and flora and fauna were taken likewise.