On foggy days, when in the morning, the fog will disperse bit by bit.

Fog needs too much moisture in the air to form fog, so it is easy to form fog in autumn and winter. The reason why fog dissipates can be that the surface temperature rises, which leads to fog evaporation, or that the wind speed increases, which leads to fog being blown into clouds.

The duration mainly depends on the situation. Fog in arid areas will only last about 1 hour, and fog in humid areas will last for 6 hours. Generally speaking, the fog will disperse around 6 pm, which also depends on what season and when the sun comes out. As long as the sun appears, the fog will soon disperse. You need to pay attention to safety when traveling in foggy days, especially when visibility is particularly low.

The foggy weather has brought great safety hazards to our driving. In order to prevent accidents, we summarized some precautions for driving in foggy days:

1, arrange the travel time reasonably.

1 65438+1October 26th to 65438+February1,there is heavy fog these days, which usually starts after eleven o'clock in the evening and ends at around two o'clock in the morning the next day. During heavy fog, highways often implement grade control. In order to avoid delaying the planning, please arrange the travel time reasonably.

2, the correct use of lighting

Usage: Turn on fog lights, tail lights, width lights and low beam lights to improve visibility, see clearly the dynamics of vehicles and pedestrians, and avoid rear-end collision or scraping accidents. But don't use high beam. The high beam light is high, and it is easy to penetrate into the eyes of the driver driving in the opposite direction after being refracted by fog, which blurs his line of sight and causes accidents.

Step 3 listen to all directions

In foggy days, the line of sight is not good. Frequently honking the horn can warn pedestrians and vehicles, and at the same time indicate the position of their vehicles to avoid collision accidents due to low visibility. On the highway, once you hear the sound of a car colliding in front, you should stop at the side of the road and turn on all the lights under the condition of ensuring safety. People in the car need to wait on the roadside over the guardrail, walk along the outside of the road, set warning signs behind the car (luminous objects are better), and leave the road quickly after completion.

Step 4 drive at a low speed

In foggy days, even in light foggy areas, the driving speed should be appropriately reduced and the driving distance should be appropriately increased. When the visibility is between 200m and 500m, the vehicle speed shall not exceed 80km per hour, and the distance between vehicles shall be kept above150m. When the visibility is between 100m and 200m, the vehicle speed shall not exceed 60km/h, and the distance between vehicles shall be kept above100m. When the visibility is between 50 meters and 100 meters, the speed shall not exceed 40 kilometers per hour, and the distance between vehicles shall be kept above 50 meters. When the visibility is less than 30 meters, the speed should be controlled below 20 kilometers per hour; Generally, when the sight distance is about 10 meter, the speed should be controlled below 5 kilometers per hour.

5. Pull over in time.

It was too late to enter the nearest service area in case of sudden heavy fog. You should park your car on the emergency stop of the expressway as soon as possible, turn on the fog lights, width lights and taillights at the same time, get off on the right side, stay away from the road as far as possible, and never sit in the car to avoid being hit by passing cars outside the guardrail. In addition, warning signs should be set at the direction of coming cars150m. When the line of sight is restored to a certain extent, leave the emergency stop as soon as possible.

6, clean the line of sight

When driving in foggy weather, it is easy to fog on the front windshield, which not only damages the driver's vision, but also makes the lights of the opposite car look particularly dazzling. Remember never to drive when it is foggy. In addition to wiping the water vapor with a wiper during driving, you can also turn on the air conditioner or slightly open the window, which can eliminate or avoid the fogging of the glass.