If a crew ties up at Northtown, if there isn't a train on the lineup for that crew to work back within 12 hours and the next inbound crew on the lineup can protect the departure time, even if on continuous time or after a four hour release and might result in a dogcatch and the rest of the lineup allows for a balanced crew rotation, the crew should be deadheaded home on tie up.

If crew ties up at Northtown and at some time between 0 and 12 hours from tie up an inbound train crew can protect the departure time as outlined above, crew should be deadheaded home.

If crew reaches 12 hours from tie up and the train has fallen down, crew will be automatically put on duty, maybe held on duty until train arrives or can be deadheaded home based on operating conditions.