What is the speed limit of the expressway in foggy weather?

1. When the high-speed visibility is less than 200 meters in foggy weather, turn on the fog lights, low beam lights, position lights and front and rear position lights, and the speed shall not exceed 60 kilometers per hour, and keep a distance of more than 100 meters from the vehicles in the same lane;

2. When the visibility is less than 100 meters, turn on the front and rear position lights, low beam position lights and hazard warning flashlights of fog lights, and the speed shall not exceed 40 kilometers per hour, and keep a distance of more than 50 meters from vehicles in the same lane;

3. When the visibility is less than 50 meters, turn on the front and rear position lights of fog lights, low beam lights and danger warning flashlights, and the speed shall not exceed 20 kilometers per hour, and leave the expressway from the nearest exit as soon as possible.

Motor vehicles driving on the highway shall not have the following acts:

1, reversing, retrograde, turning around and crossing the isolation belt or parking in the driveway;

2. Overtaking on ramp, acceleration lane or deceleration lane;

3. Riding, rolling the lane boundary or driving on the shoulder;

4. Driving or parking in the emergency lane in non-emergency situations;

5. Test drive or learn to drive a motor vehicle.

Legal basis: Article 81 of the Regulations of People's Republic of China (PRC) on Road Traffic Safety.

When a motor vehicle runs on an expressway, it shall comply with the following provisions in case of low visibility meteorological conditions such as fog, rain, snow, dust and hail:

(a) when the visibility is less than 200 meters, turn on the fog lights, low beam lights, position lights and front and rear position lights, the speed shall not exceed 60 kilometers per hour, and keep a distance of more than 100 meters from the vehicle in front of the same lane;

(2) When the visibility is less than 100 meters, turn on fog lights, low beam lights, position lights, front and rear position lights and hazard warning flashlights, the speed shall not exceed 40 kilometers per hour, and keep a distance of more than 50 meters from the vehicle in front of the same lane;

(3) When the visibility is less than 50 meters, turn on fog lights, low beam lights, position lights, front and rear position lights and hazard warning flashlights, and the speed shall not exceed 20 kilometers per hour, and leave the expressway from the nearest exit as soon as possible.

In case of the circumstances specified in the preceding paragraph, the expressway management department shall release the prompt information such as speed limit and distance keeping through the display screen.