20260212 13233600 1.0 TRUE L'établissement du cadastre du bruit routier découle de la loi fédérale sur la protection de l'environnement (LPE) du 1er janvier 1985 et de son ordonnance d'application sur la protection contre le bruit (OPB) du 1er avril 1987.<br />Le cadastre des immissions du bruit du trafic routier maximum par bâtiment prend en compte le point de détermination le plus exposé pour le jour et pour la nuit.<br />Ces valeurs sont nommées Max Lr jour et Max Lr nuit, leur unité est le décibel pondéré A dB(A).<br />Ces valeurs sont issues d'une modélisation des niveaux d’évaluation définis dans l’annexe 3 OPB (§3) effectuée au moyen du modèle de calcul sonROAD18. Elles indiquent aussi si des valeurs limites d’immissions (VLI), déterminées en selon l'annexe 3 de l'OPB, sont potentiellement dépassées. 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