Railyard

HUGE railyard with 9 parking tracks, each of which can accommodate a train with up to 16 bogeys, the first parking track also has a service station section capable of holding a train with 10 bogeys. You may build a building around that service station track or just remove it. This build uses a lot of train signals and nixie tubes, and in turn, costs a lot of electron tubes. This is technically a module and is meant to be connected to and existing railway system or have one built off of it.