Under what circumstances can a car double flash?

1. Driving in fog. In foggy days, you should not only turn on double flashing lights, but also turn on fog lights to remind passing vehicles to pay attention and illuminate yourself.

2. When there is a fault or traffic accident on the road, double flashing lights should be turned on to remind passing vehicles to pay attention to safety. If the vehicle fails to use lights and set warning signs according to regulations after stopping in expressway, it will be scored once 12.

3. When towing a faulty motor vehicle, both the tractor and the towed vehicle should turn on the danger warning flash to remind the vehicle that it is in an abnormal state.

4. When parking temporarily in the driveway, turn on the double flashing lights to remind other cars to pay attention.

5. When the traffic police department allows the formation of a motorcade, the vehicles in the motorcade should turn on the double flashing lights. It should be reminded that we often see wedding motorcades and motorists' clubs turn on double flashing lights on the road, which is wrong. )

6. 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, and 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;

7. 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 expressway from the nearest exit as soon as possible.

When the hazard warning flash is turned on

1. When the car breaks down.

When a vehicle suddenly breaks down on the road and cannot be moved to a safe area in time, it should immediately turn on the danger warning flash to remind passing vehicles and pedestrians to pay attention to safety, and call the police in time to wait for rescue.

Expressway is out of order.

When a vehicle breaks down in expressway, it should stop in the emergency parking zone, turn on the danger warning flash in time, set up a danger warning sign at the rear of the faulty vehicle150m, and give an alarm quickly. Drivers and passengers should wait for rescue outside the front fence of the faulty vehicle.

3. When towing a faulty motor vehicle

When towing a faulty motor vehicle, the vehicle is in an abnormal state. The tractor and the towed vehicle should turn on the hazard warning flash at the same time to remind the passing vehicles and pedestrians, especially the vehicles driving in the rear, so as to avoid the danger caused by overtaking or not keeping the necessary safe distance.

4. Sudden rainstorm during driving

When driving, there is a sudden rainstorm. No matter the rainstorm drops suddenly during the day or at night, it is particularly dark and rainy, so it is impossible to stop. At this time, the hazard warning flash should be turned on immediately to remind passing vehicles and pedestrians to pay attention to safety and attract attention.

Transporting critically ill patients

When sending critically ill patients in a hurry, you should immediately turn on the headlights, turn on the hazard warning flash at the same time, and sound the horn at the right time, and hang obvious special signs outside the car to remind passing vehicles and pedestrians to pay attention to safety and attract attention.

6. An emergency occurs while driving.

When the vehicle is running, the brake fails, and it is impossible to stop the vehicle quickly and effectively. At this time, you should immediately turn on the headlights and turn on the danger alarm flash to remind passing vehicles and pedestrians to pay attention to safety. Sound the horn continuously to attract attention, and take necessary gear grabbing or safety remedial measures.

7. When stopping temporarily on the road

When parking temporarily on the road, especially on the non-motor vehicle lane or crossing the road, you should immediately turn on the danger warning flash to remind passing vehicles and pedestrians to pay attention to safety, and drivers are not allowed to leave the car casually.

8. When the vehicle has a traffic accident.

When a vehicle has a traffic accident, you should immediately turn on the danger warning flash to remind passing vehicles and pedestrians to pay attention to safety, and call the police in time to wait for rescue or treatment.

9. Special tasks are being carried out

When vehicles accept temporary emergency business, they should turn on the danger warning flash to remind passing vehicles and pedestrians to pay attention to safety, attract attention and avoid in time.

10. When receiving a special task,

When vehicles accept temporary major official activities and pick up special guests (important leaders, foreign friends and senior experts), they should turn on the danger warning flash to remind passing vehicles and pedestrians to pay attention to safety and avoid them in time.

1 1. When driving at high speed.

When the vehicle needs to drive at high speed, overtake continuously or change lanes continuously for special reasons, it should turn on the danger warning flash to remind the moving vehicle to pay attention to safety and avoid in time.

12. The special situation of expressway

When the traffic in front of a motor vehicle in expressway is blocked, you should queue up in the order of the preceding vehicles, and immediately turn on the hazard warning flash to prevent rear-end collision.

Therefore, double flashing lights can't be used indiscriminately, and it is easy to be used illegally in daily life. I hope everyone can pay attention to it.