Which floor of the house next to the expressway is the noisiest? Will the houses near the expressway be noisy?

Expressway is a section where many vehicles pass, so the noise of houses around the expressway will be very high at ordinary times. According to the law of sound propagation, the noise decibel of high-rise buildings is generally higher than that of the ground floor. So which floor of the houses next to the expressway is the noisiest? Will it be noisy if the house is near the highway? Let's take a look together.

Which floor of the house next to the expressway is the noisiest?

The traffic on the highway will never stop, especially at night, when the car is faster and has horns. Noise is inevitable, so it is very important to choose a floor with low noise.

The noise level of building 1- 12 was tested at night. The lowest floor noise of 1 building is 68.4 dB, and the highest floor noise of 12 building is 7 1. 1 dB, and the daytime noise data are 1 floor respectively. The average noise at night is 8.9 decibels lower than that during the day, but it is still higher than the safe range of 45 decibels at night.

2. Experts said: Theoretically, the noise of 1 1 floor is usually relatively high.

When floor noise is tested without external interference, the data shows that the higher the floor, the greater the noise, and basically 1 1 floor noise is higher. Considering the complexity of the external environment, if the main noise source is only roads, it is often smaller at the bottom and top, but the largest in the middle. "The ground reflection, or the reflection of the opposite building, brings together sound sources from all directions, which will lead to the highest noise in the middle floor of high-rise buildings. The noise source of high-rise buildings is the sound of car horns and large vehicles starting, braking and accelerating, and the greater the traffic flow, the more obvious it is.

3. In real life, the farther away from the noise source, the lower the noise. Usually, noise will have a decay process in the air. However, sound waves will also be disturbed by surrounding greening and wind speed, blocked or absorbed by low-rise greening and buildings, and the noise will be reduced after repeated refraction and reflection, while the noise of high-rise buildings is relatively large when they are completely exposed to the three-dimensional propagation of sound waves. In addition to traffic noise, residents living in high-rise buildings are often affected by wind noise, and wind may also become a noise source.

Will it be noisy if the house is near the highway?

High-speed noise mainly comes from two aspects, one is the friction between the tire and the ground, the other is the friction between the car body and the air when the car is driving fast, and the occasional horn sound. When the soundproof screen is set on the roadside, most of the sound waves of the two sound sources will be reflected back when they meet the soundproof screen, which can limit the sound waves to the road surface, which is why we can hear the roar when driving on the road with the soundproof screen. The sound barrier not only has the function of reflecting sound waves, but also has a certain sound absorption function, so it can eliminate most of the noise. Of course, complete elimination is not realistic, and some sound waves will propagate upward. The house is more than 100 meters away from the expressway, which will not have any impact. In the urban interchange, some houses are only more than 20 meters away from the road surface. Although the speed is not as fast as the expressway in the urban interchange, the friction between the wheels and the road surface is not small, and the noise barrier plays a very good role. Of course, at this distance, it is impossible to hear nothing, but it can be limited to a tolerable range.

If there are always ten floors in the house beside the expressway, I suggest you buy a house with three to five floors, because the higher the floor of the house beside the expressway, the greater the noise you will suffer. However, if there is only one road around the house, the middle-level house will be noisier. Therefore, which floor to buy for the house beside the expressway should be decided according to its own needs and economic situation.

The above is the related content of "which floor of the house beside the expressway is the noisiest" compiled by Bian Xiao. The house next to the expressway is best to choose the bottom 3-5 floors.