What are audible announcements in rail systems?

• A. Audible beeps used to indicate train arrival.
• B. Printed timetables posted on the wall.
• C. Spoken information broadcast over the PA system to inform passengers of service status and safety.
• D. Text messages displayed on digital boards.

Answer: (C)

Audible announcements are spoken messages broadcast over the public address (PA) system in rail environments. They deliver real-time information about service status and safety, such as train arrivals, platform changes, delays, or important safety instructions, so passengers can hear updates even if they’re not looking at signs. This makes them accessible and immediate, helping people make timely decisions and stay informed.

The other methods describe non-spoken communication: beeps are simple alerts, printed timetables are static information posted somewhere, and digital boards display text visually rather than being spoken. That's why spoken PA announcements are the correct description.