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  • 1
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    Patterns of behavior in lodgings exposed to traffic noise (1984)
    In:  CASI
    Details
    Publication Date: 2019-08-13
    Description: Threshold values for public services interferent on the attenuation to noise nuisance were defined. Daily life at home was described and collected on the use of residences, the effects of noise on health and sleep, and the incidence of running away from home. A correlation was made with the equipment and noise insulation of homes. It is shown that there are behavior patterns in the modification of considerable manner in the way of life for people who live in apartments and in individual houses, above 66 dB during daytime.
    Keywords: ENVIRONMENT POLLUTION
    Type: NASA-TM-77750 , NAS 1.15:77750 , IRT-47
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Influence of the number of vehicles in the emergence of sound events on the annoyance expressed - experimental study (1982)
    In:  CASI
    Details
    Publication Date: 2019-08-27
    Description: The acoustical index leg was studied to determine its accuracy in predicting annoyance from traffic noise. Annoyance was tested in experimental situations where the frequency of the number of heavy vehicles varied from 3 to 30 HV/30 min for different classes of the Leg level at 50, 55, 60 dB(A) of traffic noise. The results showed that: (1) for a constant Leg level the annoyance increases as a function of the number of HV up to a certain threshold at which the annoyance is stabilized; (2) for a constant frequency of passage of HV, the annoyance increases with the Leg level; (3) composite indexes of the type Leg + Log NHV, L1 + EMER or L1 + L10 give a predictive value greater than that of the Leg pr Log nHV taken alone.
    Keywords: ENVIRONMENT POLLUTION
    Type: NASA-TM-76701 , NAS 1.15:76701
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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