What must be done when a train is to be authorized to proceed in one direction through the limits of another train?

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When a train is authorized to proceed in one direction through the limits of another train, it is critical to ensure safety and control over the movement of trains on shared tracks. The requirement for track warrants to instruct both trains to move at restricted speed is essential in this scenario because it minimizes the risk of collision and enhances communication between the trains involved.

Restricted speed allows a train to operate cautiously, ensuring that if it encounters obstacles or receives signals that require immediate action, the train can stop in time. This approach is particularly important when two trains are operating in close proximity within overlapping limits, as it maintains a safety buffer.

While it may seem that other measures, such as stopping both trains for verification or allowing only one train to move at a time, increase safety, they may not be necessary if proper protocols like restricted speed are followed. Additionally, the procedure does not typically require permission from a senior dispatcher unless specific circumstances arise that dictate different operational protocols. Implementing track warrants with restricted speed ensures a balance between operational efficiency and safety on the railway network.

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