Passenger volume in the airline industry has declined dramatically over the past two years, and thus fewer travelers and fewer planes are using airports
Since airport expansion can be warranted only by increases in air traffic volume, and since it will probably be at least five years before passenger volume returns to and then exceeds its previous level, it seems surprising that now is the time that airports are going ahead with plans to expand their passenger terminal facilities
When passenger volume begins to grow again after a period of decline, most airlines can, initially, absorb the increase without adding new routes or new planes.