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

[OMaria]

When visibility is less than 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 less than 200 meters on the highway, the speed should not exceed 60 kilometers per hour. When visibility is less than 50 meters, the speed should not exceed 20 kilometers per hour, and the driver should exit the highway as soon as possible. When visibility is less than 100 meters on the highway, drivers should turn on the fog lights, low beam lights, clearance lights, front and rear position lights, and hazard warning flashers to ensure that vehicles in front and behind can easily detect their presence. 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 reminders through displays and other means.