I have super large station in a city of 175,000, so coverage of station is fully covered by buildings. But I never seen more than 1,500 passengers in my station. That's bad, because if some Airbus A380 land on the linked airport, they will totally drain my station. I made some feeder services by buses, but passengers from there won't remain longer than couple of seconds and I still only have around 1,500.
Is there any way to "store" more passengers in station?