What action must be taken if the radio instructions are not understood?

What action must be taken if the radio instructions are not understood?

• A. Be stopped immediately
• B. Notify the dispatcher after 5 minutes
• C. Proceed at reduced speed
• D. Continue to the next interlocking

Answer: (A)

When radio instructions aren’t understood, stop immediately. This stops any movement that could be based on unclear directions and prevents unsafe actions near signals or interlockings. After stopping, re-establish contact with the dispatcher to get clear instructions, or have the instruction repeated until it’s understood, before proceeding. Delays, reduced speed, or continuing to the next interlocking don’t resolve the risk of acting on unknown instructions and aren’t appropriate.

When radio instructions aren’t understood, stop immediately. This stops any movement that could be based on unclear directions and prevents unsafe actions near signals or interlockings. After stopping, re-establish contact with the dispatcher to get clear instructions, or have the instruction repeated until it’s understood, before proceeding. Delays, reduced speed, or continuing to the next interlocking don’t resolve the risk of acting on unknown instructions and aren’t appropriate.