What should a driver do when driving in fog?

When driving in fog, using low beam headlights is crucial for safety. This is because low beam headlights illuminate the road directly in front of the vehicle without creating a significant reflection off the fog, rain, or snow. High beam headlights, on the other hand, can cause a glare that reflects off the moisture in the fog, reducing visibility rather than improving it.

Additionally, maintaining regular speed in foggy conditions can be dangerous as reduced visibility often requires a driver to slow down and adjust their speed to ensure they can respond adequately to any obstacles or sudden changes in the road ahead. Turning off all lights is also not advisable since it makes the vehicle less visible to other drivers, increasing the risk of accidents.

Therefore, using low beam headlights not only improves visibility for the driver but also enhances safety for others on the road.