Sound bubble. prov. roads (int. < 3 milj.) Lnight 2011

The dataset contains the Lnight noise contours of the provincial roads of the Province of Utrecht from the 2nd tranche of the EU Environmental Noise Directive (2011 level). These are roads with annual intensity below 3 million motor vehicles. The noise maps are valid for the 2011 level year and only reflect the calculations related to the EU Environmental Noise Directive for the provincial roads of Utrecht.本数据集收录了乌得勒支省（Province of Utrecht）省级公路依照欧盟环境噪声指令（EU Environmental Noise Directive）2011版第二批次生成的夜间噪声等值线（Lnight noise contours）。此类公路的年机动车通行量低于300万辆。 该噪声地图适用于2011基准年，且仅反映针对乌得勒支省省级公路、依照欧盟环境噪声指令开展的相关计算结果。