How many high-speed road closures are due to smog?

On foggy days, when the visibility is less than 50 meters, the expressway will be closed. When driving in foggy weather, be sure to turn on the front and rear fog lights and drive slowly. China's laws have clear provisions in this regard.

"Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China" Article 58 When a motor vehicle is driving at night without street lamps, poor lighting or under low visibility conditions such as fog, rain, snow, dust and hail, it should turn on the headlights, position lights and rear position lights, but when the rear vehicle driving in the same direction approaches the front vehicle, it is not allowed to use the high beam lights. When driving in foggy weather, motor vehicles should turn on fog lights and hazard warning flashlights.

Article 81 When a motor vehicle runs on an expressway, it shall abide by the following provisions when it encounters low visibility meteorological conditions such as fog, rain, snow, dust and hail:

1. When the visibility is less than 200m, turn on the fog lights, low beam lights, position lights and front and rear position lights. The speed shall not exceed 60km/h, and keep a distance of more than100m 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 50m, turn on fog lights, low beam lights, position lights, front and rear position lights and hazard warning flashlights. Do 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.

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