In heavy fog, which combination best describes safe driving?

In heavy fog, which combination best describes safe driving?

• A. Stop in place
• B. Use high beams and maintain distance
• C. Slow down, use low beams (or fog lights), and increase following distance; use lane positioning
• D. Turn on hazard lights and drive slowly

Answer: (C)

In heavy fog, visibility is severely reduced, so the key to safety is to limit glare, control speed, and give yourself more reaction time. High beams bounce off the fog and create a bright haze that makes it harder to see the road and other vehicles, so they should not be used. Use low beams or fog lights to illuminate the road directly in front of you without reflecting off the fog. Slow your speed to give you more time to spot hazards, and increase following distance so you can stop safely if something appears suddenly. Keep to lane positioning to stay centered in your lane and avoid drifting toward the edge or into oncoming traffic. Hazard lights are for when you’re stopped or in distress, not for normal driving through fog, and stopping in place without a clear reason can surprise drivers behind you. This combination—reduced speed, appropriate lighting, more space, and steady lane position—best supports safe driving in fog.

In heavy fog, visibility is severely reduced, so the key to safety is to limit glare, control speed, and give yourself more reaction time. High beams bounce off the fog and create a bright haze that makes it harder to see the road and other vehicles, so they should not be used. Use low beams or fog lights to illuminate the road directly in front of you without reflecting off the fog. Slow your speed to give you more time to spot hazards, and increase following distance so you can stop safely if something appears suddenly. Keep to lane positioning to stay centered in your lane and avoid drifting toward the edge or into oncoming traffic. Hazard lights are for when you’re stopped or in distress, not for normal driving through fog, and stopping in place without a clear reason can surprise drivers behind you. This combination—reduced speed, appropriate lighting, more space, and steady lane position—best supports safe driving in fog.