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  2. Automatic track warning system - Wikipedia

    en.wikipedia.org/wiki/Automatic_track_warning_system

    This is a burden for people living near railway tracks during work. Modern systems adapt to the ambient volume (mandatory from 2019) and only warn at full sound pressure in very loud environments. Even at reduced volume, this is still perceived as noise pollution. In 2014 in Stuttgart-Sommerrain, an ATWS was sabotaged by unidentified persons. [5]

  3. Noise barrier - Wikipedia

    en.wikipedia.org/wiki/Noise_barrier

    A noise barrier (also called a soundwall, noise wall, sound berm, sound barrier, or acoustical barrier) is an exterior structure designed to protect inhabitants of sensitive land use areas from noise pollution. Noise barriers are the most effective method of mitigating roadway, railway, and industrial noise sources – other than cessation of ...

  4. Noise control - Wikipedia

    en.wikipedia.org/wiki/Noise_control

    Mixed-use areas present especially difficult conflicts that require special attention to the need to protect people from the harmful effects of noise pollution. Noise is generally one consideration in an environmental impact statement, if applicable (such as transportation system construction).

  5. Noise pollution - Wikipedia

    en.wikipedia.org/wiki/Noise_pollution

    Noise pollution, or sound pollution, is the propagation of noise or sound with potential harmful effects on humans and animals. The source of outdoor noise worldwide is mainly caused by machines, transport and propagation systems.

  6. Environmental noise - Wikipedia

    en.wikipedia.org/wiki/Environmental_noise

    Example of transportation noise and how it affects the community. Environmental noise is an accumulation of noise pollution that occurs outside. This noise can be caused by transport, industrial, and recreational activities. [1] Noise is frequently described as 'unwanted sound'. Within this context, environmental noise is generally present in ...

  7. Noise regulation - Wikipedia

    en.wikipedia.org/wiki/Noise_regulation

    The objective aspect is to control the sound output of specific machines. There are four major sources of site noise: (1) direct sound from continually operating equipment such as air compressors; (2) intermittent sound from equipment such as jack hammers;(3)backup alarms; and (4) hauling equipment such as trucks.

  8. Occupational noise - Wikipedia

    en.wikipedia.org/wiki/Occupational_noise

    Occupational noise, or industrial noise, is often a term used in occupational safety and health, as sustained exposure can cause permanent hearing damage. Occupational noise is considered an occupational hazard traditionally linked to loud industries such as ship-building , mining , railroad work, welding , and construction , but can be present ...

  9. Acoustical engineering - Wikipedia

    en.wikipedia.org/wiki/Acoustical_engineering

    Noise control is a set of strategies to reduce noise pollution by reducing noise at its source, by inhibiting sound propagation using noise barriers or similar, or by the use of ear protection (earmuffs or earplugs). [20] Control at the source is the most cost-effective way of providing noise control.