Noise index Day-evening-night (LDEN) for main roads
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Isophones for noise index Day-evening-night (LDEN) for main roads According to § 47b of the BImSchG, main roads are “Bundesfernstraße, Landesstraße or other cross-border road, each with a traffic volume of more than three million motor vehicles per year” Calculation is based on Directive 2002/49/EC on the assessment and control of ambient noise (EU Environment Noise Directive – EU-ULR)
