It is also an illegal act to use lights incorrectly, for example, it is an illegal act for a vehicle to keep its high beams on many times on city roads, and to keep its high beams on when meeting a car on a narrow road and following a car. The high beam will illuminate the other party who can't see the road clearly, which is equivalent to blind driving, and the danger can be imagined. Most people hate high beams and pay special attention to their use when driving. However, if you run at high speed at night, you should turn on the high beams, which is not illegal, but the reasonable use of lights.
The traffic law stipulates that high beams should be used on unlit or poorly lit roads, and if they do not use high beams, then high beams have no meaning to exist. On the highways, except for a very few sections with street lights, most of the highways have no street lights. This is also in line with driving on unlit roads, so it is very correct to use high beams. This is from the perspective of traffic laws, and from the perspective of their own driving safety, they should also use high beams. The high beam has a long range and high brightness, which can illuminate the road farther, and the general high beam irradiation distance is more than 100 meters, and it is brighter than the low beam, which can help the driver find obstacles or emergencies in front of him in advance.
On highways, the speed is faster, leaving the driver with relatively little reaction time. Therefore, the use of high beams can expand the driver's field of vision, increase reaction time, and thus avoid potential hazards. We can roughly calculate that if you travel at a speed of 120 km/h, you will travel 33.33 meters per second. If you use a low beam, the distance is about 30-50 meters, and we calculate the farthest 50 meters. The farthest we can see is 50 meters, and it only takes 1.5 seconds to travel that 50 meters, which means that no matter what the road is on, the driver's reaction time is only 1.5 seconds. If you really encounter an obstacle or other emergency, you may have an accident before your foot moves to the brake pedal. If high beams are used, it takes 3 seconds at a distance of 100 meters. This time allows the driver to avoid some obstacles, brake to reduce the speed of the car, or dodge in the direction, and the probability of accidents is much smaller.
However, we can't use high beams all the time, and the traffic law also stipulates that the use of high beams must not affect the vision of other drivers. If there is a car in front of us, when we are about 100 meters away from the car in front, we should switch to low beam to prevent it from affecting the vision of the driver of the car in front. Do not use high beams when following the car, otherwise the driver of the car in front will have glare and cannot see the road in front and behind. If there is an accident with the car in front of you, you are very likely to follow behind and have an accident, because it is too sudden and you will not have time to brake. Therefore, you should use low beam when following the car, and you should continue to maintain low beam when overtaking. When overtaking with high beams, the vehicle in front cannot judge the distance between you and him, and it is easy to get into danger. When you overtake the car in front of you, there is no car in front of you, and you can change back to high beams. Therefore, high beams can be used on high speeds, but they are not left on all the time, and the lights need to be changed in time according to the situation to achieve the most reasonable light use.
If you encounter bad weather, such as fog, rainy days and other times when the vision is not good, you should reduce your speed, turn on the low beams, and never use high beams, especially when there is fog. Because fog has a reflective effect, it can make the light form a diffuse reflection, if you turn on the high beams, there will be a white expanse in front of you, and you can't see anything. This is also caused by the poor penetration ability of the high beam, at this time to use the low beam and turn on the fog lights, the fog lights have the strongest penetration ability, the clearest illumination. However, the irradiation distance is short, so the speed of the vehicle should not be too fast.
The danger of running at high speed at night is higher than during the day, because of the poor lighting. In addition to using the high beams correctly, it is also necessary to maintain a stable speed, do not go fast or slow, avoid frequent lane changes or sudden braking, pay attention to changes in road conditions at any time, and be prepared in advance. Try to avoid some emergencies by yourself, drive predictively, and respond in advance. At the same time, don't cause emergencies to others, others don't cope well and bump into us, and we will also suffer.
In short, the use of driving lights at night, as long as you remember that there are no lights on the road or the brightness of the lights is insufficient, you should use high beams. However, when you are close to the vehicle in front, remember to switch to low beam. Make sure you have a clear view, but also take into account the feelings and safety of others, and don't use your high beams indiscriminately.