— type A card in Lden: areas exposed to + 55 dB(A) with curves
isophones from 5 to 5 dB(A):
]55;60],]60,65],]65,70],]70,75],]>75]
— Lden:
noise discomfort index weighted by different periods
one day, i.e.:
day/day:
6am-18h
evening/evening:
18h-22h
night/night:
10h-6h
— dB(A):
unit of measurement expressing an intensity level (decibel)
weighted according to the physiological characteristics of the human ear.
Sources:
CE Méd2010 + IGN bdCarto
C_RD3_ALDEN_65
C_RD3_ALDEN_55
C_Tab_assembRD3
C_RD3_ALDEN_70
C_COMMUNE
C_RD3_ALDEN_60
C_RD3_ALDEN_75
C_COMMUNE_Labels
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