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2. Indicators
2.1 Environmental noise
Whether in the environment or on board trains, it is necessary to have noise measurement indicators shared by the rail community in order to be able to compare the noise of different types of equipment and set limit values.
Acoustic pressure in air, i.e. the instantaneous rapid pressure fluctuation around mean atmospheric pressure, is expressed in pascals, where :
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Indicators
Regulations
Bibliography
Standards and norms
NF ISO 226 February 2004 Acoustics – Normal isosonic lines.
NF EN ISO 3095 November 2005 Railway applications – Acoustics – Measurement of noise emitted by vehicles running on rails.
NF EN ISO 3381 November 2005 Railway applications – Acoustics – Measurement of noise inside rail vehicles.
ISO/TS February 2003 Acoustics – Assessment of noise...
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