Les zones exposées aux bruits (carte de type A - Ln)

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Provided by BUREAU DE RECHERCHES GÉOLOGIQUES ET MINIÈRES

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Dataset information

Catalog

Geocatalogue France

Country of origin

France

Updated

Created

Available languages

French

Keywords

Environnement, Santé, Transport

Datasource

Official portal for European data link

Quality scoring

100

Dataset description

Type A Ln* (Zones exposées au bruit à plus de 50 dB(A) Les zones de bruit sont des éléments géométriques constitutifs de la carte de bruit stratégique. Pour les cartes de type A (CBSTYPE), chaque zone de bruit est généralement délimitée par 2 courbes isophones (Lden 55-60, 60-65, 65-70, 70-75 et Ln 50-55, 55-60, 60-65, 65-70) ou part la courbe isophone de limite inférieure (Lden >75, Ln > 70). Pour les cartes de type C (CBSTYPE), chaque zone de bruit est délimitée par la courbe isophone de limite inférieure (Lden > 68 ou 73, Ln > 62 ou 65).

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