WMS Environmental Noise Mapping 2022 Round 4

This service presents the round 4 (2022) noise maps for major roads with more than 3 million vehicles per year, major railway lines with more than 30,000 trains per year, major airports with more than 50,000 flights per year, in addition, in agglomerations with more than 100,000 inhabitants, other noise-relevant roads, rail and airports as well as industry including ports and other sources of noise in accordance with Directive 2002/49/EC (EU Environmental Noise Directive) of the European Parliament and of the Council for Nordrein-Westfallen. Noise effects shown in the maps are not measured, but calculated according to Europe-wide, uniform calculation methods for environmental noise on railways, roads, airports and industry and commerce (CNOSSOS (BUB, BUF, BEB)). The calculations were carried out in a 10 meter grid and at a height of 4 meters. The displayed noise index LDEN (day-evening-night-noise index) is a physical quantity for the description of the ambient noise. It is calculated from the daytime noise index (12 day-hours, LDay), evening noise index (4 rest-hours, LEvening) and nighttime noise index (8 night-hours, LNight). The noise index LNight is also displayed separately.