1. When driving at high speed, the engine sound is loud, the road speed is fast, and there are many vehicles passing around. The sound of the car horn will not have much effect due to wind noise or the volume of music in the car.

2. Some highway sections are relatively close to residential areas or villages. Although noise reduction glass is installed, the normal life of residents will be affected if the whistle is blown.

3. When honking horns on highways and tunnels, the noise will affect the driving of other vehicles and interfere with the normal driving of other people, which will have the opposite effect.

Extended information

Notice on prohibition of honking on highways in some cities

"Notice on further strengthening the management of motor vehicle honking"

In order to reduce noise pollution from motor vehicle horns and build a harmonious and livable city, in accordance with the "Road Traffic Safety Law of the People's Republic of China", the "Law of the People's Republic of China on the Prevention and Control of Environmental Noise Pollution" and other relevant laws and regulations, now The relevant matters regarding strengthening the management of motor vehicle horns in this city are announced as follows:

1. The areas and times where motor vehicle horns are prohibited are:

(1) Chengdu Ring Expressway ( Within G4201) (excluding the beltway), honking is prohibited 24 hours a day.

(2) South of the Chengdu Ring Expressway (G4201) involving the High-tech South District, east of the Chengdu-Ya Expressway, and between Damasi Road, Tianfu 4th Street, and Tianhua 2nd Road In the north, the area west of Kehua South Road, Century City Road, and Century City South Road (the above-mentioned roads include the road itself except the Ring Expressway and Chengya Expressway) are prohibited from honking 24 hours a day.

2. Police cars, fire trucks, ambulances, engineering rescue vehicles and other special vehicles are not allowed to use sirens when performing non-emergency tasks.

3. Motor vehicle horns and mufflers should comply with national standards. It is prohibited to install, illegally modify and use tweeters, air horns (flutes) and other devices that do not comply with national regulations.

4. Anyone who violates this notice will be punished by the traffic management department of the public security organ in accordance with the "Road Traffic Safety Law of the People's Republic of China" and other relevant laws and regulations.

Chengdu Municipal People's Government Portal - Notice on Further Strengthening the Management of Motor Vehicle Honking