Update 5

No integrated metro station anymore!
Had to remove it to solve a terrain issue caused by the vanilla integrated station I used.

Update 4
Finally, the airport is compatible with Metro Overhaul Mod. Many thanks to BloodyPenguin for his advice.

Update 3

• Sub-buildings enabler is not required anymore
  
• Reduced texture brightness
  
• Reduced file size about 9 MB
  
• You will need surface painter to fill the space between taxiways with concrete
  
• No trees on the side of the entrance, so everyone can place the plants he likes

Update 2
Thanks to BloodyPenguin all six gates work now! Use his Unlimited Outside Connections Mod. Read the description at the workshop site! Perhaps you have to rebuild the Airport Terminal.

Update 1
Now “After Dark” isn’t required. The assets “Joak's Airport Left” and “Joak's Airport Right” should be able to be activated.