What should you consider when approaching a foggy area?

When approaching a foggy area, it is essential to drive at a speed that allows you to stop within your field of vision. This approach is crucial because fog can significantly reduce visibility, often to just a few feet. By adjusting your speed, you can better react to potential hazards, such as slower-moving vehicles, pedestrians, or obstacles that might appear suddenly within your range of sight.

Maintaining a speed that matches your visibility ensures that you have enough time to react safely, reducing the risk of accidents. This practice aligns with defensive driving techniques, emphasizing the need to adapt to changing conditions on the road.

The other options suggest actions that could be dangerous. For instance, speeding up to clear the fog could result in losing control of the vehicle if you unexpectedly encounter an obstacle. Maintaining the same speed as other vehicles might not account for reduced visibility specific to your situation, which can lead to collisions. Turning off your lights, counterintuitively, would increase danger, as it would make your vehicle less visible to others, while fog lights or low beams are typically used to enhance visibility in such conditions.