page_title: Noise barrier
hierarchical_section_title: Noise barrier
caption_attribution_description: Heading through the Sound Tube on the Tullamarine Freeway in Melbourne, Victoria, Australia.
context_page_description: A noise 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 the source activity or use of source controls.
  In the case of surface transportation noise, other methods of reducing the source noise intensity include encouraging the use of hybrid and electric vehicles, improving automobile aerodynamics and tire design, and choosing low-noise paving material. Extensive use of noise barriers began in the United States after noise regulations were introduced in the early 1970s.
context_section_description: 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 the source activity or use of source controls.
  In the case of surface transportation noise, other methods of reducing the source noise intensity include encouraging the use of hybrid and electric vehicles, improving automobile aerodynamics and tire design, and choosing low-noise paving material.  Extensive use of noise barriers began in the United States after noise regulations were introduced in the early 1970s.
caption: The sound tube in Melbourne, Australia, designed to reduce roadway noise without detracting from the area's aesthetics.
exif: {}