Noisebel. prov. roads Lnight 2006

dataset contains the 50 dB, 55 dB, 60 dB, 65 dB and 70 dB Lnight sound contours of the provincial roads of the Province of Utrecht from the 1st tranche EU Environmental Noise Directive (year 2006). It concerns roads with annual intensity of & 6 million motor vehicles. noise maps are valid for reference year 2006 and only reflect the calculations related to the EU Environmental Noise Directive for the provincial roads of Utrecht.