data download service (WFS) from: Meeting- Strategic Noise Map: RD4 card type A Lden

Description

— 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_55_Dept974_RD4_finite
c_DDI_LD_60_Dept974_RD4_finite
C_departments
c_DDI_LD_70_Dept974_RD4_finite
C_Location
c_DDI_LD_65_Dept974_RD4_finite
C_StPaul
C_COMMUNE_cartelie
C_StPaul_Labels
c_DDI_LD_75_Dept974_RD4_finite
C_nationals

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