In Track Warrant Control, which statement best describes the boundary of responsibility between the dispatcher and the train crew?

• A. Dispatcher issues warrants and controls them; crew complies and confirms receipt; both monitor occupancy and progress
• B. Dispatcher issues warrants; crew ignores them
• C. Crew issues warrants; dispatcher follows instructions
• D. The control is entirely automatic by a system

Answer: (B)

In Track Warrant Control, the safe boundary of responsibility rests on the dispatcher issuing and controlling the warrants that authorize train movements, while the train crew must comply with those warrants, acknowledge receipt, and monitor their progress. This arrangement ensures that only authorized movements occupy a single-track section and that both parties stay coordinated: the dispatcher keeps the authority and can modify or cancel warrants as needed, and the crew confirms they have received the warrant and executes the movement within its terms, reporting occupancy and progress to keep the overall plan safe. If the crew were to ignore or bypass the warrants, or if warrants were issued by the crew or relied entirely on automatic systems, the clear, controlled authority would be lost and the risk of conflicting movements would rise.