data download service (WFS) from: Strategic Noise Map 2012 (second deadline) — Map type a — Lden

The strategic noise maps, in accordance with European Directive 2002/49/EC of 25 June 2002, allow for the overall assessment of exposure to noise in the environment. They allow a representation of noise levels, but also to enumerate the exposed population, quantify the nuisances, and then draw up action plans. The type “a” map locates the noise-exposed areas, using Lden isophones in steps from 5 in 5 from 55 dB(A) to more than 75 dB(A). Le Lden (Level day, evening, night) is an indicator of hour-weighted noise discomfort (day, evening and night) DB(A) is a unit of measurement expressing a level of intensity (decibel) weighted according to the physiological characteristics of the human ear. Reference: prefectural Decree of 29 April 2013 MAXIMUM CONSULTATION SCALE: 1/25 000 th C_DEPARTMENT C_L_ISOPHONES_LDen55 C_L_ISOPHONES_LDen60 C_COMMUNE_Labels C_VOIES_FERREES C_COMMUNE C_VOIES_FERREES_Labels C_L_ISOPHONES_LDen70 C_COMMUNES_IMPACTEES C_ROUTES_Labels C_L_ISOPHONES_LDen75 C_L_ISOPHONES_LDen65 C_ROUTES