What information must be included when a control operator gives verbal authority for a train to enter CTC between block signals?

When a control operator gives verbal authority for a train to enter Centralized Traffic Control (CTC) between block signals, it is crucial to provide specific operational details to ensure safety and seamless communication. The correct choice includes the train's identification, the precise location from which it is entering, the track that will be used, and the direction the train is taking. This information is vital for several reasons.

First, knowing the train identification helps the dispatcher and other operators track the specific train, ensuring everyone on the communication line has clarity about which train is involved. The location detail indicates where the train is currently positioned, which is essential for monitoring its movements and ensuring it is safely integrated back into mainline operations.

Furthermore, specifying the track to be entered is critical because it outlines the specific pathway the train will take, allowing for safety checks against potential conflicts with other train movements. Mentioning the direction clarifies how the train is expected to proceed on that track, providing additional context for upcoming signal indications and any necessary adjustments to traffic.

In contrast, while aspects like weather conditions, last signal details, and emergency protocols may be important in the broader context of train operations, they do not directly address the immediate requirement for verbal authority to enter CTC between block signals