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            <resTitle Sync="FALSE">Strategisk støykartlegging - Bane Lden</resTitle>
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        <idPurp>Bane Nor som kildeeier har kartlagt støy iht. forurensningsforskriftens kapittel 5, avsnitt III om strategisk støykartlegging utendørs støy i større byområder og fra større samferdselsanlegg.</idPurp>
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            <statement>Bane NOR benytter programmet CadnaA fra Datakustik til å utføre støyberegningene. Beregningshøyden er i samsvar med forskriften satt til 4 meter over terreng. Avstand mellom beregningspunkt er normalt satt til 5 meter, og gir dermed et grid på 5x5 meter. Fasadepunktberegninger blir også gjort på genererte fasadepunkter på bygninger. Bygningens enkeltverdi bestemmes av fasadepunktet med det høyeste støynivået. Bygninger tilegnes fasadepunkter automatisk basert på hvor lang en fasade defineres å være.

I henhold til forskriften skal støykartleggingen beregnes og rapporteres for indikatorene Lden og Lnight. Referansetidene og straffetillegg på 5 dB for kveld og 10 dB for natt for Lden er definert i beregningskonfigurasjonen.

Beregningene er utført etter Nordisk beregningsmetode fra 1996.</statement>
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