 When this happens, guests are unloaded in the tunnel (which has lights and a stairway for such an event) and a winch pulls the empty train back into the station.Trains feature a single lap bar in each row actuated by depressing a foot pedal near the front of each car, done by a station attendant.Unlike many roller coasters, though, there are no upstop wheels to prevent the trains from leaving the track; instead there is only a flange (upstop pad) which achieves the same result.