Under the EU Environmental Noise Directive, the noise pollution caused by traffic on the provincial roads in Gelderland has been passed on. This has been done according to the prescribed method SKM2 in the Geoenvironment programme. This is calculated in Lden. This is the average noise load over a day, with a surcharge of 5 or 10 dB for the evening and the night. The noise is displayed with contours. The card is classified from 50 dB increased per class by 5 dB. These are real noise pollution and no AFTek has been applied (Article 110 g of the Noise Act).
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