What action must be taken when a train is cleared to move on a track warrant?

When a train is cleared to move on a track warrant, it is essential to follow the specific instructions outlined in that track warrant. The track warrant provides critical information about speed restrictions, limits of movement, and any other operational guidelines that the train crew must adhere to while on that section of track. This ensures safety and maintains the integrity of train operations, as the instructions are designed based on the current conditions of the rail network, including the positions of other trains and any work zones.

Adhering to the track warrant allows the crew to operate within the established guidelines, minimizing the risk of accidents or conflicts with other trains. It is a fundamental aspect of train operations that ensures all personnel understand their authority and responsibilities during movement, which is crucial for safety and coordination on the railroad.