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<h1>Noise Barriers and Other Noise Control Devices</h1>Noise Barriers are an effective deterrent against unwanted noise from various street sources. A noise barrier is an external structure specifically designed to shield residents of sensitive residential land use locations from noise pollution caused by other elements in the surrounding environment. Noise barriers are usually the most effective way of mitigating road, railway, and industrial noise pollution sources in the surrounding area hence the need for such construction. Noise barriers serve as a physical barrier against noise from external sources while providing insulation against noise from within.

The construction of noise barriers, consisting of a solid metal or timber barrier, is very effective in reducing the noise levels emitted by road vehicles and other external sources. Noise barriers can be installed at strategic locations to reduce the noise levels coming from nearby streets or air conditioning vents. They are also effective in preventing the noise levels coming from rail and railway stations and airports from reaching residential areas.


Noise barriers may also be constructed using highly effective materials such as asphalt or concrete on the interior side to act as sound absorbers while providing a smooth covering on the exterior. Materials for such installations vary from highly effective steel mesh, heavy duty industrial plastic mesh, wood and other solid material interlocking forms. https://etinational.org/sztachety-plastikowe-ich-zalety-i-wady/ and asphalt noise barriers are commonly used to reduce noise levels coming from nearby streets or highways while concrete and asphalt blocks are used for internal blocking road sounds from entering residential buildings. However, the effectiveness and the environmental impacts of such materials are highly dependent on a number of factors such as the magnitude of the problem, the location, the height of the buildings, and many more.


For highly sensitive locations where acoustic isolation from road sounds may be highly desirable, the best solution would be to build a noise-barrier fence. A noise-barrier fence is usually comprised of sturdy steel or aluminum. Materials such as vinyl or polyethylene are also used. The purpose of a noise-barrier fence is to provide a soundproof barrier that effectively reduces outside noise and minimizes the potential damage caused by airborne noise.


One example of a very effective noise-barrier fence is the type that is used on highways. Often made from lightweight aluminum, these fences are effective at reducing highway noise and hold many benefits for both noise reduction and construction. The type of noise-barrier fence used on highways has varying heights depending on the amount of surrounding noise the highway must tolerate. However, most highways in North America have a minimum height of five feet to reduce or eliminate the risk of vehicle crashes due to excessive vehicle sound pressure.


Structured-mounted ground-mounted noise barrier systems come in a variety of forms. There are two main categories of noise barrier systems: one-way noise barrier systems that allow for the easy installation on the ground and two-way noise barrier systems that are designed for installation over the top of a concrete slab. Both types of noise barrier systems can be designed and installed to meet the specific needs of an individual property or commercial entity. Some examples of one-way systems are noise barrier panels that are installed on the ground and then installed atop a slab of concrete. These panels are designed to absorb sound energy up to a certain level and then reflect it back into the surrounding environment.


Two-way noise-barrier fence panels that are used to block unwanted noise are different from the one-way variety. Instead of absorbing and reflecting noise waves, these structures are made up of a series of steel posts that are anchored to the ground and to each other. Once installed, these structures form a barrier that effectively block road sounds, as well as ambient noises from nearby homes and businesses. An advantage of these structures is that unlike noise-barrier fence panels that must be manually installed onto the ground, a two-way system that uses these panels requires very little manual labor or time.


In addition to noise barriers, another type of noise control device that can effectively reduce or prevent unwanted sound from entering a property or workspace is a sound diffuser. Sound diffusers work by dispersing sound energy so that it appears to be dissipated away from the listener. The most common diffusers are those that come in the form of sprays, cushions, rollers, or blankets. A spray Diffuser is commonly used to reduce noise in enclosed areas such as recording studios and recording rooms, home offices, and churches. A noise diffuser is also effective at reducing noise in industrial and commercial facilities where materials, machinery, and equipment make frequent trips into other spaces, as well as between various work teams or individual workers.

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