The main reason is attributed to China’s traffic management concepts and systems. When changing the line after overtaking in the United States, the driver will tell you that you can only change the line when you see the front wheel of the car behind you in the rearview mirror. Regarding high beams, all American drivers know that you should not turn on the high beams when there is fog. Because you can't see clearly; in addition, don't turn on your high beams unless absolutely necessary. If you interfere with the driver of the opposite car's line of sight, you will be unlucky if he hits you. Chinese driving instructors don't teach these things. They always emphasize the need for sharp eyesight and quick hands, as if only quick reactions can survive on the road. Basic safety knowledge is not taught. In the United States, if there is a car accident on the highway, the traffic police will place a cold light candle (windproof) on the ground at least 200 meters away to remind you to change the line. The cold light candles will form a long diagonal line of fire, and the driver behind will have enough Time to avoid trouble areas. In China, the traffic police place a fluorescent warning sign at most a few dozen meters away. When you see it, you only have a few seconds to react before the car breaks down. In China, the traffic control department likes to build flower beds in the medians of lanes. In some places, there are even flower beds in the medians of highways. Only China has this practice in the world. Why don't other countries do it? Others are justified. If the flower bed is built in the middle of the road, it will easily distract the driver. It is most practical and cheap to use a separation fence. Finally, I would like to emphasize a point. Traffic management, like management in other fields, is a science and needs to be studied with a scientific attitude. American researchers studied the 10 intersections with the highest accident rates in the United States and found a common problem: the traffic lights at these intersections were not high enough or not enough. If there is a truck in front of you, the car behind you will not be able to see the traffic lights change, which can easily lead to a rear-end collision. After improving the traffic lights according to their research, they found that accidents decreased by 15% in the second year. If the results of this study are correct, 90% of China's traffic lights have room for improvement, and the changes will be effective immediately. How many lives can be saved and how many losses can be reduced each year? These results have been studied by others and published publicly. No patent fees are required. We just need to use them. Why not do it? The country has so many delegations visiting every year and spending so much money every year to introduce technology, such as high-speed rail. Why is no one willing to take the time to study other people’s advanced experiences in traffic management? We are already “number one in the world” and it’s time for a change. For the health and safety of your family and friends, please consciously travel safely and tell your friends around you, so that love can be spread to everyone. If everyone stays out of it, you and I may be the next ones to have a car accident.