Driving Speed and Distance in Foggy Conditions?
2 Answers
When driving in foggy conditions, remember to slow down. The thicker the fog, the shorter the visibility distance, and the lower the speed must be. When visibility is less than 200 meters but greater than 100 meters, the speed should not exceed 60 km/h; when visibility is less than 100 meters but greater than 50 meters, the speed should not exceed 40 km/h; when visibility is within 30 meters, the speed should be controlled below 20 km/h; if visibility is within 10 meters, it is recommended to stop by the roadside. Below is additional information: Precautions for foggy conditions: Maintaining a certain distance between vehicles is crucial when driving in foggy conditions, as the wet and slippery road surface increases the braking distance of vehicles. Therefore, it is essential to keep a safe distance from the vehicle in front to prevent rear-end collisions in case of sudden braking.
The most crucial things when driving in fog are to slow down and increase your following distance. With over twenty years of driving experience, I never take foggy conditions lightly. Generally, if visibility drops below 100 meters, it's best to keep your speed under 40 km/h. If I encounter patchy fog on the highway, I'll slow down to 30 km/h. Your following distance should be at least double the usual—I learned this the hard way after a rear-end collision caused by following too closely. A practical tip is to pick a reference point: after the car ahead passes it, count to three before you reach the same spot. Also, don’t forget to turn on your fog lights and width indicators—many cars have automatic headlights, but fog lights often need manual activation. Keep your wipers running for clear visibility and use the air conditioning in fresh-air mode to prevent window fogging. If visibility becomes dangerously poor, don’t push it—pulling over safely and waiting for the fog to clear is the wisest move.
