What should be done if a driver encounters foggy conditions?

Reducing speed and using low beam headlights is crucial when a driver encounters foggy conditions. Fog significantly reduces visibility, making it essential to slow down to maintain control of the vehicle and react to unexpected obstacles or changes in traffic. By using low beam headlights, the driver can improve visibility without creating glare that could reflect off the fog, which happens with high beams. Low beams are designed to illuminate the road directly in front of the vehicle, providing better sight lines in such conditions.

High beams can actually worsen visibility in fog as the light bounces off particles in the air, creating a wall of reflected light that can disorient the driver. Driving at normal speed is dangerous in fog because the ability to see far ahead is impaired, increasing the risk of accidents. Turning on hazard lights and speeding up is inappropriate, as it can confuse other drivers and increases the risk of collisions. Hence, the strategy of reducing speed and using low beam headlights is the safest approach for navigating through fog.