If a transmission of numbers needs further clarification, what may the train dispatcher do?

• A. Ignore
• B. Wait for confirmation
• C. Restate and/or spell
• D. Repeat with no change

Answer: (C)

When numeric transmissions are unclear, the dispatcher will restate and/or spell the digits to ensure accuracy. This helps prevent mishearing numbers because digits can sound similar over the radio, and static or fast speech can lead to errors. By hearing the exact sequence clearly, both sides confirm they’re using the same numbers before moving on. For example, the dispatcher might say the digits as “three-four-six-two” or spell each digit if needed. Restating and spelling directly addresses the ambiguity and keeps operations safe. Repeating with no change doesn’t resolve the confusion, and waiting for confirmation is something the other party would typically do, not the dispatcher proactively doing the clarification.