Sound. prov. roads Lnight 2006
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资源简介：
dataset contains the 50 dB, 55 dB, 60 dB, 65 dB and 70 dB Lnight noise contours of the provincial roads of the Province of Utrecht from the 1st tranche EU Environmental Noise Directive (level year 2006). It concerns roads with an annual intensity of >6 million motor vehicles. noise maps are valid for 2006 and show only the calculations for the EU Environmental Noise Directive for the provincial roads of Utrecht.
