What should you do when driving in fog?

When driving in fog, using low beam headlights and reducing speed is essential for several reasons. Low beam headlights are designed to illuminate the road immediately in front of the vehicle while minimizing the glare that can reflect off the fog, rain, or snow, which can impair visibility further. High beam headlights, on the other hand, tend to reflect off the water droplets in the fog, creating a blinding effect that reduces visibility.

Reducing speed is also crucial in foggy conditions, as visibility is significantly decreased. Slowing down allows for better reaction times, giving the driver the ability to respond to any unexpected obstacles or changes in traffic conditions that might not be clearly visible. In dense fog, it often becomes necessary to expect the unexpected, such as pedestrians or other vehicles that may not be visible until they are very close.

In contrast, other options do not promote safe driving practices in fog. Using high beam headlights would worsen visibility rather than improve it, while driving as one normally would fails to account for the reduced visibility and reaction time needed in fog. Simply turning on hazard lights does not provide any additional visibility to the driver or others on the road and can lead to confusion. Therefore, the best practice in fog is to use low beam headlights and reduce speed