“(a) the construction of a new runway, the major realignment of an existing runway or the extension or strengthening of an existing runway; or (b) a substantial addition to, or alteration of, a taxiway or apron, being an addition or alteration whose purpose or main purpose is the provision of facilities for a greater number of aircraft.”
“The main purpose of the redevelopment, including the alterations, was to produce a modern regional airport with expanding commercial passenger traffic. The focus for this expansion was the new passenger terminal, and the aprons [ie, the areas for parking aircraft] associated with the terminal were needed to accommodate the aircraft, including Boeing 757s, which would carry the increasing number of passengers.”
“… requires … a numerical comparison between the number of aircraft for whom facilities existed before the alterations and the number of aircraft for whom facilities would exist after the alterations. If the facilities after the alterations would provide for a greater number of aircraft, it then becomes necessary to determine whether providing facilities for this greater number was the purpose or main purpose of the alterations. The unit to be considered for the purposes of this comparison is the airport as a whole.”
“The main purpose of the redevelopment, including the alterations, was to produce a modern regional airport with expanding commercial passenger traffic. … [This] expansion of commercial air traffic would lead to a reduction in general aviation …”
“[T]he Secretary of State was fully entitled to conclude … that ‘a hard standing area was necessary for the helicopters to operate from the airport’ and that this was accordingly the purpose of the alterations.”