data consultation service (WMS) from: Strategic noise map (first deadline) — Map type a — Ln
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https://data.europa.eu/data/datasets/fr-120066022-mdwms-ddt_37-csbruit_a_ln?locale=en
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资源简介：
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 Ln isophones per step from 5 in 5 from 50 dB(A) to more than 70 dB(A).
Ln (Level night) is an index of hour-weighted noise discomfort (night noise)
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 25 May 2011
MAXIMUM CONSULTATION SCALE: 1/25 000 th
C_L_ISOPHONES_Ln50
C_L_ISOPHONES_Ln65
C_L_ISOPHONES_Ln60
C_COMMUNE_Labels
C_L_ISOPHONES_Ln70
C_COMMUNES_IMPACTEES_A_LN
C_ROUTES
C_DEPARTMENT
C_COMMUNE
C_L_ISOPHONES_Ln55
C_ROUTES_Labels
