UkrainianProfessional Education

Abstract

The problem of noise pollution of the environment is extremely urgent. Noise by origin (noise sources) can be domestic, industrial and transport. Sources of household noise can be speakers, vacuum cleaners, perforators, etc. The sources of industrial noise can be machines of various types operating in factories, railway trains running between the workshops of the enterprise, etc. Transport noise is created by ground, rail, air, and water modes of transport. One of the most common types of traffic noise is car noise. Car noise is combated in various ways, the main of which is the requirement for car manufacturers to create the latter in accordance with noise standards. Noise created by cars when moving on roads and highways is called traffic noise. In this case, cars are not considered as single objects, but as a collection consisting of different types of cars, which in turn move at different speeds. As world practice has shown, the use of noise protection structures (NPS) is an effective method of protecting residents in highway areas. There are different types of NPS in terms of structure and design features. A number of requirements are put forward to them, they must: occupy, if possible, a smaller right-of-way width; not to contribute to snow drifting of road surfaces; be transportable, simple in their construction, installation and operation, allow quick replacement of damaged sections and racks; to meet aesthetic requirements, fit well into the landscape and not obstruct the view of the surrounding landscape by those who drive. Thin NPS are usually called acoustic screens. Acoustic screens, given the lack of space near highways, have gained wide popularity. These screens must meet a number of requirements: be acoustically effective, resistant to the effects of precipitation, solar radiation, and wind load. Fulfillment of the last requirement obliges to make a more voluminous, and therefore more expensive, foundation. In this paper, a solution to the mentioned problem is proposed: to reduce wind resistance (resistance to wind load). At the same time, the acoustic efficiency (sound-absorbing and sound-insulating properties) does not decrease

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