What methods do people often use on the highway to reduce noise?

The impact and harm of noise on people are directly related to the intensity of noise. In buildings, the measures taken to reduce noise are mainly sound insulation and sound absorption. Sound insulation is the isolation of sound sources to prevent noise from being transmitted indoors.

Planting trees on both sides of the road can insulate the houses on both sides. In the building, the sandwich structure made by separating the multi-layer dense material with porous material will also have a good sound insulation effect. In order to eliminate noise, the commonly used sound-absorbing materials are mainly porous sound-absorbing materials, such as glass wool, mineral wool, expanded perlite, perforated sound-absorbing panels, etc.

The sound absorption performance of a material is determined by its roughness, flexibility, porosity and other factors. In addition, the lawn and trees around the building are also good sound-absorbing materials, so we plant flowers and trees, which not only beautifies the environment in which we live and learn, but also prevents noise pollution to the environment.

China's psychology community believes that in addition to considering human factors, it is also necessary to take into account economic and technical feasibility in controlling the noise environment. Adequate noise control must consider the entire system composed of the noise source, the sound transmission pathway, and the recipient. Measures to control noise can be aimed at any of the three or any of the above.

Noise control includes:

1) To reduce the noise of the sound source, the industry and transportation industry can choose low-noise production equipment and improve the production process, or change the movement mode of the noise source (such as damping, vibration isolation and other measures to reduce the vibration of the solid sound emitter).

2) Reduce noise in the sound transmission pathway, control the propagation of noise, change the noise propagation path that has been emitted by the sound source, such as the use of sound absorption, sound insulation, sound barrier, vibration isolation and other measures, as well as reasonable planning of urban and building layout.

3) When measures cannot be taken on the sound source and transmission path, or the acoustic measures taken still cannot achieve the expected effect, it is necessary to take protective measures for the sound recipient or the sound receptor organ, such as workers who are exposed to long-term occupational noise can wear earplugs, earmuffs or helmets and other ear protectors.

Although noise control is now technically mature, due to the large scale of modern industry and transportation, there are many enterprises and places that need to adopt noise control, so it is necessary to make a comprehensive trade-off from the technical, economic and effective aspects of noise prevention. Of course, specific issues should be analysed on a case-by-case basis. In the control room, design room, workshop or place where employees work for a long time, the intensity of noise should be low; The warehouse or few people go to the workshop or open space, and it is okay to be a little louder.

In short, there should be a certain difference in the treatment of noise at different times, different places, different properties and different durations.

Some ways to prevent noise pollution].

1.Create a soundproof forest.

2.Move businesses with high levels of noise pollution out of urban areas.

3.Prevention at the source, reduction of the transmission process.

More specifically, there are encyclopedias.

In order to reduce noise, people usually use the following methods on the road:

1. Green belts are planted on both sides, which can absorb considerable noise; A green divider is set up in the middle of the highway, which can improve the microclimate and improve the cleanliness of the highway while absorbing sound.

2. Build high-grade pavement, such as very fine asphalt concrete pavement, cement concrete pavement, etc., to reduce the sound of wheel friction.

3. Install wave-type highway railings to cancel each other out the sound waves to achieve the purpose of noise reduction.

4. In addition to earbuds, you can also use other methods to deal with your ears, which is one of the methods.

5. Silencer device, such as people wearing thick clothes can be silenced themselves.

Answer: 1. Don't shout loudly in public places; 2. Do not honk in urban areas; 3. Actively promote to family members to reduce noise; 4. Wait lightly when moving the table.

, what can we do to reduce noise pollution.

1 The first thing to do is to avoid noise as much as possible. Without affecting work, study and entertainment, the volume and switching time of household appliances and other sound-generating appliances should be strictly controlled. Especially for the use of high-frequency stereo sound, the volume must be controlled below 70 decibels (subject to no deafening sensation).

Car drivers should not honk their horns at will, and do not often go to noisy commercial areas and song halls to "receive" noise, etc., so as to reduce the harm of human noise as much as possible.

2 Pay attention to prevent noise pollution from household appliances. When purchasing household appliances, it is necessary to choose the most advanced and low-noise ones. Try not to put household appliances in one room, and it is best not to put the refrigerator in the bedroom; Try to avoid the simultaneous use of various household appliances; Once a household appliance fails, it should be eliminated in time, because the noise generated by a household appliance working with illness is much louder than that of a normal machine.

3 The "Silent Villa" has sprung up abroad and is very popular, but due to national conditions, China is not yet able to follow suit, so it can only create an atmosphere of silence in our own homes.

Principle of noise reduction: 1. Weaken at the sound source 2. Weaken during propagation 3. Weaken at the receiving place Method: 1. Close the sound source and build a soundproof wall at the sound source to prevent the noise from spreading directly outward.

Bring headphones, such as installing some soundproof windows and doors!

Because they can't stand the noise for a long time, most people will commit suicide.

Here are some good ways to reduce noise in your life:

1. Seal the sound source, build a soundproof wall at the sound source to prevent the noise from spreading directly to the outside.

2. Strengthen greening, plant trees on both sides of complicated highways, and form barriers.

3. Add soundproofing facilities.

4. Add a sound insulation device to the ear, such as a good earplug.

5. Place them separately, try not to put electrical appliances in one room, and eliminate noisy machines in time.

6. Raising flowers and plants can eliminate part of the noise.

1 External: green belts, soundproof walls, etc., 2 Root causes: Noise reduction, regulation of industrial noise time, traffic regulations, etc., 3 Self: Strengthen protective measures.

In order to reduce noise pollution, many measures have been adopted:

1.Improve equipment and processes to eliminate noise sources by using noise-free or low-noise equipment and processes wherever possible;

2.Isolate some of the unavoidable noise from living quarters, such as airports built on the outskirts of the city;

3.In the construction of the project, sound absorption and sound insulation equipment are widely used to reduce noise;

4.Afforestation can also reduce noise in cities and industrial and mining enterprises.

In order to reduce noise, people usually use the following methods:

1.Control the sound source (muffler installed).

2.Control of propagation routes (sound insulation, green belts).

3.Atenuation from the human ear (earplugs, earmuffs).

In order to reduce noise in life, people commonly use methods such as (sealing the sound source, building a soundproof wall at the sound source to prevent the noise from spreading directly to the outside), (strengthening greening, planting trees on both sides of the complicated highway to form a barrier), (adding sound insulation facilities), (lubricating the machine, which prevents noise and protects the machine), (adding sound insulation devices at the ears, such as good earplugs).

Reduced at the source of sound, reduced during propagation, reduced at the human ear.