— 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 Med2009 + IGN bdCarto
c_DDI_LD_75_Dept974_V5_finite
C_departments
c_DDI_LD_55_Dept974_V5_finite
C_COMMUNE_cartelie
C_StDenis
c_DDI_LD_60_Dept974_V5_finite
c_DDI_LD_65_Dept974_V5_finite
C_nationals
C_Mazagran_Location
c_DDI_LD_70_Dept974_V5_finite
C_StDenis_ Tags
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