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a system used in rail operations to authorize train movements along specific sections of track based on direct communication between train crews and dispatchers
What is "track warrant control"?
Track warrant control (TWC) is a system used by railroads to manage train movements on tracks, especially in areas without signal systems. Under TWC, a train dispatcher issues a track warrant, which grants a train permission to occupy a specific section of track for a certain period of time. The train is required to follow the instructions in the warrant, such as staying within the specified track limits and not crossing into areas used by other trains. This system ensures that only one train is on a given section of track at a time, helping to prevent collisions and improve safety in areas without automatic signaling.
