What should a driver do when visibility is severely limited?

When visibility is severely limited, reducing speed and increasing following distance is crucial for safety. By slowing down, the driver has more time to react to any potential hazards that may arise, such as other vehicles, pedestrians, or obstacles in the road that may not be easily visible. Driving at a slower speed also helps to ensure that the vehicle remains under control, which is particularly important when conditions are challenging, such as during fog, heavy rain, or nighttime driving.

Increasing following distance provides additional space to react to sudden stops or slowdowns from the vehicle ahead, which is essential when visibility is compromised. This extra space compensates for the decreased ability to judge closing distances and gives the driver more time to process any unexpected changes in traffic conditions.

Maintaining normal speed in poor visibility could lead to dangerous situations, as the driver may not see hazards in time to react appropriately. Similarly, using high beams can cause glare, making it even harder to see the road. Ignoring the situation altogether can result in catastrophic consequences, as the driver would be unprepared for the dangers associated with limited visibility. Hence, adjusting driving behavior by reducing speed and increasing following distance is the best practice in such conditions.