An airport depot for loading and unloading food cart products to the airport delivery vehicles. It has two fixed invisible tracks for the vehicles to use. You need to add invisible track in front of the door with appropriate junctions so the vehicles can back into the two loading tracks inside the building.
You need to make these track long enough so the vehicle can clear the junctions to back up correctly under AI. You also need additional track connected to the rear of the building so the AI can navigate correctly inside the building to load or unload.