There's a station type that essentially has two tracks parallel to each other on a big rotating disk that allows one side to be in the station loading a train while the other side lines up with the actual coaster track to allow for one car to be loaded while the other car runs back and forth on something similar to a half pipe circuit or like the extended coaster skyloop model allowing for dual train operation on a coaster that passes through the circuit multiple times increasing the ride capacity per hour. I'm not sure of any real life examples I can name, but I know they exist. If someone knows what I'm thinking of please comment it for reference.