When transmitting or accepting release of authorities; or when transmitting any other mandatory directive or instruction in the CAD system, the train dispatcher or control operator must what?

• A. Log The Event In The Paper Log
• B. Post A Notice To The Crew
• C. Directly Observe The Screen Display To Ensure The Employee Repeat Is Correct
• D. Call The Supervisor To Confirm

Answer: (C)

The essential safety check here is real-time verification of what is being transmitted or accepted in the CAD system by watching the screen to confirm the employee’s repeat matches the authority or directive. When the dispatcher sends a release of authority or any mandatory instruction, the employee repeats back what was sent to confirm understanding. The dispatcher then directly observes the CAD display to ensure that the content of that repeat is exactly the same as what was transmitted. This immediate visual confirmation catches any miscommunication, miskeying, or data-entry error before the authority is in effect, preventing unsafe movements or conflicts in the track authority.

Options like logging on a paper log, posting a crew notice, or calling a supervisor do not provide the real-time, embedded verification that the CAD system requires. They either don’t confirm the exact directive as entered or add unnecessary delays. The direct screen verification is the precise, proactive step that ensures the repeat accurately reflects the transmitted instruction.