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On Calculating Average Levels and Level Fluctuating of Street Noise

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Fluctuations of traffic noise levels may be characterized by the relative variance of the sound intensity from wich other fluctuation quantities can be derived. It can be calculated for any traffic pattern if the covariance of the spatial sound power density is known.

In this paper formulae are given for the average value and the variance of intensity for open streets as well as for urban roads with buildings along both sides. From these values practically important fluctuation parameters of the noise level can be calculated at least approximately. Then this method is applied to several typical traffic models. Lastly, the possibilities to determine the covariance of the power density are discussed.
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Document Type: Research Article

Publication date: February 1, 1975

More about this publication?
  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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