That is a good question. I guess some rides dont have enough brakes to have all of their trains on it, so they park 1 train on the lift. For fof, with 2 trains, we park them in load station, and unload station. For 3 trains, we park them in Load station, waiting brakes (between load and unload), and unload station. For 4 trains, the are at Load station, waiting brakes, Unload station, and trim brakes (return tunnel). Most rides park their trains where maintance can easily get to them too.