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The French method (of representing noise annoyance)The psophic index used in France for noise exposure from aircraft globally represents the annoyance with the following hypotheses: (1) the global annoyance is a function of the number of aircraft overflights of each type but does not depend on the overflight time; (2) an aircraft flying at night is considered to be just as annoying as 10 aircraft of the same type passing overhead during the day; and (3) and annoyance is only a function of the peak noise levels. Overall, the psophic index appears statistically as good a representation of the average annoyance as methods used in other countries; however, it does seem to reflect poorly the annoyance caused by light aircraft. Noise maps produced for Orly, Roissy, and the area around Paris are described. The range of applications and limitations of the psophic index are discussed.
Document ID
19810010275
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Collet, F. (NASA Headquarters Washington, DC United States)
Delol, J. (NASA Headquarters Washington, DC United States)
Date Acquired
September 4, 2013
Publication Date
June 1, 1980
Subject Category
Acoustics
Report/Patent Number
NASA-TM-75833
Accession Number
81N18801
Funding Number(s)
CONTRACT_GRANT: NASW-3198
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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