What is the speed limit when visibility is below 100 meters on the highway?

[ElliotRose]

When visibility is below 100 meters on the highway, the maximum speed should not exceed 40 kilometers per hour, and a distance of more than 50 meters should be maintained from the vehicle in front in the same lane. When visibility is below 200 meters on the highway, the speed should not exceed 60 kilometers per hour, and when visibility is below 50 meters, the speed should not exceed 20 kilometers per hour, and the vehicle should leave the highway as soon as possible. When visibility is below 100 meters on the highway, drivers need to turn on the fog lights, low beam lights, position lights, front and rear position lights, and hazard warning flashers to ensure that vehicles in front and behind can easily detect the presence of the vehicle. If a motor vehicle is driving on the highway and encounters low visibility weather conditions such as fog, rain, snow, dust, or hail, the highway management department should issue speed limit and distance-keeping prompts through displays and other means.

[RosalieLee]

I've been driving for over 30 years, and I still remember that time driving on the highway in heavy fog when visibility suddenly dropped to about 50 meters. I was so nervous that I immediately slowed down to around 35 km/h. Traffic regulations state that when visibility is below 100 meters, speed must not exceed 40 km/h, and this must be strictly followed. That time, I drove very slowly, turned on my fog lights and hazard lights, and kept at least 200 meters behind the car in front. Honestly, it's best to avoid highways in such weather, but if you must drive, check the forecast in advance and prepare snow chains and emergency lights. Getting home safely is the real skill. When I was younger, I witnessed many rear-end collisions—those lessons were profound. Now, I'd rather drive slowly than fast.

[DiAlana]

I just got my driver's license not long ago, and I still remember the low visibility rules that my driving instructor repeatedly emphasized. On the highway, if visibility is below 100 meters, the speed must absolutely be kept under 40 kilometers per hour. I once encountered a light rain with fog and drove a bit too fast, almost losing control. Fortunately, I slowed down in time. Traffic regulations state that speeding will result in penalty points and fines, and it's easy to cause accidents. So, I make it a habit to reduce speed in advance during bad weather, turn on the lights, and maintain distance. New drivers should practice more simulations to stay calm in emergencies.

[JasperRose]

As someone who frequently deals with traffic violations, I can tell you for sure that when visibility on the highway drops below 100 meters, you must slow down to under 40 kilometers per hour. These rules are strictly enforced to prevent chain-reaction accidents. I've personally witnessed tragedies caused by speeding. A reminder to everyone: turn on your fog lights and hazard lights, and increase your following distance. The risks of violating these rules are high, with fines starting at 200 yuan and possible demerit points. Safe driving is everyone's responsibility—don't take chances.