Strategic noise map of type A Ln — Isophone curves in areas exposed to noise. These curves materialise areas of the same sound level and are plotted by step of 5 dB(A) from the threshold of 50 dB(A) in Ln
C_A36_APRR_CarteA_Ln
c_HR_noise_motorway_concedee_affected_Labells
C_Zones_Urbaines
c_HR_noise_motorway_concedee_affected
C_N_COMMUNE_BDC_068_ Tags
C_N_COMMUNE_BDC_068
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