Which warning sign indicates a tunnel ahead?

Which warning sign indicates a tunnel ahead?

• A. Tunnel Ahead
• B. Trams Crossing Ahead
• C. Level Crossing With Barrier Or Gate Ahead
• D. Overhead Electric Cable

Answer: (A)

Recognising approaching hazards through warning signs. The sign for a tunnel ahead is the red-trimmed triangle that shows a tunnel entrance. It alerts you that lighting will change and there may be specific tunnel rules or hazards, so you should reduce speed if needed, be prepared for variable visibility, and follow any posted tunnel regulations. The other signs point to different dangers—tram crossing, level crossing with barriers, or overhead electric cables—so they don’t indicate a tunnel.

Recognising approaching hazards through warning signs. The sign for a tunnel ahead is the red-trimmed triangle that shows a tunnel entrance. It alerts you that lighting will change and there may be specific tunnel rules or hazards, so you should reduce speed if needed, be prepared for variable visibility, and follow any posted tunnel regulations. The other signs point to different dangers—tram crossing, level crossing with barriers, or overhead electric cables—so they don’t indicate a tunnel.