What is the difference between a Track Warrant to Occupy and a Track Warrant Authority to Proceed?

• A. To Occupy authorizes occupancy of the track segment; Authority to Proceed may refer to authorization to move beyond a given point or past a signal, subject to conditions.
• B. They are identical.
• C. One is for passenger trains; the other for freight.
• D. The terms are interchangeable.

Answer: (B)

The essential idea here is that a Track Warrant controls movement on single-track territory, and the two terms are really just different ways of naming the same permission. A Track Warrant to Occupy authorizes entry and staying in a defined block, while a Track Warrant Authority to Proceed conveys the ability to move within the same limits, typically beyond a point or past a signal, under the same conditions. In practice, many systems issue one warrant that covers both entry and movement, so the operational authority you’re given is the same regardless of which label is used. The important part is the limits, the train identity, and the conditions (speed, signal aspects, other trains), not the wording.