When entering a tunnel, which action best preserves visibility?

When entering a tunnel, which action best preserves visibility?

• A. Use the correct headlight setting.
• B. Leave headlights off to save battery.
• C. Rely on interior lights only.
• D. Use hazard lights inside the tunnel.

Answer: (A)

When you enter a tunnel, ambient light drops, so your vehicle needs its lights on to see the road and to be seen by others. Using the proper headlight setting ensures you have enough illumination without causing glare for other drivers. High beams are usually too bright inside a tunnel and can blind oncoming drivers or reflect off wet or shiny tunnel walls. Relying on interior lights won’t illuminate the road ahead, and hazard lights aren’t meant for normal driving and can confuse other drivers. So the best action is to switch to the appropriate headlights (typically low beams) before and while you're in the tunnel.

When you enter a tunnel, ambient light drops, so your vehicle needs its lights on to see the road and to be seen by others. Using the proper headlight setting ensures you have enough illumination without causing glare for other drivers. High beams are usually too bright inside a tunnel and can blind oncoming drivers or reflect off wet or shiny tunnel walls. Relying on interior lights won’t illuminate the road ahead, and hazard lights aren’t meant for normal driving and can confuse other drivers. So the best action is to switch to the appropriate headlights (typically low beams) before and while you're in the tunnel.