Why is the horn a necessary part of a car, and the law forbids it?

Safety is the most important when driving on the road. As a signal source, car horn can not only remind other vehicles and pedestrians, but also have laws to follow.
According to Article 47 of the Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China, when a motor vehicle overtakes, it should turn on the left turn signal in advance, change the use of high and low lights or honk the horn. On a road with no road centerline or only one motorway in the same direction, when the front vehicle sends a overtaking signal when it meets the rear vehicle, the speed shall be reduced and the right side shall be left to give way if conditions permit. After confirming that there is sufficient safety distance, the rear vehicle should overtake the left side of the front vehicle, and turn on the right turn signal after pulling away the necessary safety distance from the overtaken vehicle, and drive back to the original lane.
Article 59 When a motor vehicle passes a sharp turn, slope, arch bridge, pedestrian crossing or an intersection without traffic signal control at night, it shall use the high and low beam lights alternately. When a motor vehicle approaches a section of road that affects the safe sight distance, such as a sharp turn or the top of a ramp, and when overtaking or in an emergency, it shall slow down and honk for indication.
Such a regulation is unreasonable.
First of all, with the continuous improvement of automobile technology, the performance of automobiles has also been greatly improved. High-speed automobiles pose a threat to the safety of pedestrians. The car horn can be used as a signal to warn other vehicles and pedestrians to pay attention to safety.
Secondly, as an important part of the car, if the use of the car horn is prohibited, it would be a waste of resources and the owner's money.
Thirdly, when the driving school coach explained the function of the car horn, he also said that honking the horn can be used as a warning tone to remind other vehicles and pedestrians.
However, now, some areas and many sections of the city are prohibited from honking. In addition, Article 62 of the Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China also stipulates that driving a motor vehicle shall not have the following behaviors:
1. Drive when the door and carriage are not closed;
2. Hanging and placing objects that hinder the driver's vision within the front and rear windows of the driver's cab;
3. Call and answer the handset, watch TV and other behaviors that hinder safe driving;
4. Turn off or coast in neutral when going down a steep slope;
5. Throw objects on the road;
6. The motorcycle driver leaves the handlebar or hangs objects on the handlebar
7. Drive the motor vehicle continuously for more than 4 hours without stopping for rest or stop for less than 20 minutes;
8. Horn honking is prohibited in the area or road section.
So why are the traffic laws and regulations so contradictory, and when it is required to whistle, it is forbidden for vehicles to whistle in some areas and sections? It may be for the following reasons.
1、 Areas and road sections where whistling is prohibited are generally the core areas of cities. Because there are many people and cars in these places, the speed is often not fast, so there is no need to sound the horn to remind. On the contrary, the car horn is very noisy.
2、 Car whistle is also a kind of noise pollution.
It is understood that noise has a great impact on people. When the noise level is below 50 decibels, people will feel very comfortable and can talk in a soft voice; When the noise is between 50 and 90 decibels, people will become anxious and feel sad; When the noise exceeds 90 decibels, the ear will itch and produce pain.
The decibel number of the common household car horn is about 80-110 decibels, and the decibel number of the truck whistle is much more than 110 decibels. If cars on the road whistle in succession, it will pose a threat to people's physical and mental health.
3、 The car whistle interferes with people's work and study.
Noise will not only have adverse effects on health, but also interfere with people's normal work and study. It is understood that 1dB is about the sound that people can just feel. When the ambient sound is between 15dB and 45dB, people feel the most comfortable. When people work and study, the required sound environment needs to be quieter, about 10dB - 30dB. When the sound exceeds 50dB, people's work and learning will be affected.