There is significant pressure both to create new airports and not to destroy huge acreages of land.
Today’s invention suggests an alternative approach.
A cylindrical tower acts as terminal building. Each section of the cylinder has a large runway platform cantilevered off it. The sections are powered and can rotate to optimise wind direction for landing etc.
This allows large numbers of planes to land and take off simultaneously in different directions, whilst passengers are transported by lifts up and down the inside of the tower.
It would reduce the amount of waiting enormously and thus lower the costs of air transport.