A traffic movement orchestrated by the dispatcher where a slower train is routed into a siding or an adjacent track so a higher-priority train can overtake it. This requires careful timing to ensure the slower train clears the mainline without forcing the faster train to reduce speed.
Heard on the job
Dispatcher, we're in the clear at siding switch north, ready for the hotshot to make the pass.
Also heard as
- overtake
Do not mix it up with
- Meet: A pass involves trains traveling in the same direction, while a meet involves trains traveling in opposite directions.