Dataset Direct Download Service (WFS): Aggregation generic tables noise zones type C index Lden in Héault

Aggregation of generic tables describing the Noise Zones for all terrestrial infrastructure, map type C and Lden index. Limit value exceedance maps (or “type c” maps) maps to be made within the framework of the CBS pursuant to Article 3-II-1°-c of the Decree of 24 March 2006. This is a dataset representing the areas where the Lden limit values are exceeded for the year of mapping. Lden sound level indicator means Level Day-Evening-Night. It corresponds to an equivalent 24-hour sound level in which evening and night noise levels are increased by 5 and 10 dB(A), respectively, to reflect greater discomfort during these periods. Aggregation obtained by the QGIS MIZOGEO plugin made available by CEREMA. Data source by infrastructure: CEREMA.