What gives a train authority to occupy the main track?

• A. Track Warrant
• B. Box 3
• C. Box 4
• D. Box 5

Answer: (A)

The ability to occupy the main track comes from a Track Warrant. In Track Warrant Control, a dispatcher issues a Track Warrant that authorizes a specific train to move on defined portions of the main track, from a starting point to an ending point, with any applicable speed or routing restrictions and a time window. This warrant acts as the permission slip that ensures only one train can occupy a given main-track section at a time and keeps movements coordinated. The other items listed are not the authorization document for main-track occupancy; they are parts of the dispatching system but do not by themselves grant track access.