The first image is a typicalll multi-terminal airport
i tried to cram as many gates in as possible. It is a single layer
The second image shows all the layers being stacked up underground (don't ask me why they're not above ground to save digging out around 10 cubic kilometers of dirt and rock.
The third image shows the circular runway, where planes can take off in any direction and the runway can turn in circles. Notice this is why the car entrance is so far away
The fourth image shows the system behind the rotating runway
Yes its impractical but i don't care
and if its messy that's because i did it on a car
and its red because i don't liek blueprints..
redprints? sounds wierd