What is the speed limit when visibility is 50 meters in rainy and foggy weather?
3 Answers
When driving in fog, rain, snow, dust, or hail with visibility within 50 meters, the maximum speed should not exceed 30 km/h. Here are some relevant tips for driving in thunderstorm weather: 1. If you encounter a thunderstorm while driving: Do not get out of the car to take shelter from the rain, because if lightning strikes the car, the current will travel through the car body surface to the ground, making it safer to stay inside the car (provided all windows are tightly closed). 2. Wax the glass: Apply some wax to the car windows before setting out. Some glass cleaners contain wax, which can form a wax film on the glass surface after use, allowing the wipers to sweep water more thoroughly, thereby effectively improving driving safety in rainy conditions.
When visibility is only 50 meters in rainy and foggy weather, I encountered this situation on the highway last time and immediately reduced my speed to around 30 km/h. This speed made me feel relatively safe because with such short visibility, if the speed is too high, say above 60 km/h, sudden situations would make it impossible to brake in time. With a 50-meter distance, theoretically, the speed should be controlled within the distance required to stop, so I recommend not exceeding 30 km/h. Also, it's essential to turn on the fog lights and low beams at this time; avoid using high beams as they can cause more glare and blurriness. Maintaining a safe distance is also crucial—at least twice the numerical value of your speed—to ensure enough reaction time. Avoid sharp turns or sudden acceleration in bad weather, as wet roads can easily lead to loss of control. Most importantly, stay calm and composed; driving slowly is the key to getting home safely. Remember to check that the windshield wipers are working properly, otherwise, fogged-up windows will make things worse—just turn on the defogging mode of the air conditioning.
When driving with my family in rainy and foggy weather with visibility reduced to 50 meters, I become extra vigilant and reduce my speed to between 20 to 30 kilometers per hour. Safety is the top priority, especially when children are onboard—even a slight increase in speed could lead to an accident. With 50-meter visibility, the field of view is extremely limited. If the speed exceeds 30 km/h, the braking distance could easily require over 10 meters, making it impossible to stop in time if there's an obstacle or accident ahead. I prefer maintaining a steady speed, keeping a safe following distance of at least 50 meters. Additionally, proper use of lights is crucial—turn on fog lights and position lights, but avoid flashing them to prevent distracting other drivers. Wet roads are slippery, so sudden braking can cause skidding; using gentle, intermittent braking is more effective for speed control. One more thing: checking the vehicle's condition is vital—proper tire pressure and a well-functioning braking system significantly enhance safety. In short, slowing down is the wise choice in such weather to ensure the safety of yourself and others.
