Areas of the national road N°171 exposed to noise in Lden (day-evening-night period) in Loire-Atlantique
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Dataset information
Country of origin
Updated
2021.01.24 06:38
Created
2017.04.13
Available languages
French
Keywords
transportation, passerelle-inspire, grand-public, circulation, ddtm-44, donnees-ouvertes, loire-atlantique, open-data
Datasource
Quality scoring
195
Dataset description
Map of type “a” delimiting, by level d'isophone in step of 5 dB(A), areas exposed to noise in Lden, noise indicator in the day-even-night period, from 55 dB(A) to 75 dB(A) — national road N°171 — Decree of 12/02/2013
__Origin__
Noise levels are evaluated using numerical models incorporating the main parameters that influence noise and its propagation.
__Partner organisations__
DDTM Loire-Atlantique
[See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/4d6ba448d37297141dc2a68bae11b59813da9a91)
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