What is the ideal response when encountering fog while driving?

When encountering fog while driving, reducing speed and using low beams is the ideal response because it enhances safety and visibility. Fog creates a thick barrier that significantly hampers one's ability to see both the road and other vehicles. High beams, while potentially beneficial under normal driving conditions, are counterproductive in fog because the light reflects off the water droplets in the air, creating a glare that can impair visibility further.

By reducing speed, drivers allow themselves more time to react to sudden changes or obstacles, which is critical in low visibility conditions. Using low beams improves visibility since they illuminate the road immediately in front of the vehicle without creating the glare that high beams would. This dual strategy of reducing speed and using low beams helps prevent accidents and allows drivers to navigate through the fog more safely.