Dataset Direct Download Service (WFS): Noise maps on national roads: Zoning with sound level (day, evening, night) > 68 decibels in the Department of Landes

European Directive 2002-49 of 25 June 2002 on the assessment and management of noise in the environment lays down the framework for noise control policy. The data were produced in response to Decree No. 2006-361 of 24 March 2006 on the preparation of noise maps and environmental noise prevention plans. It states that noise maps and environmental noise prevention plans are drawn up: (1) For each road and motorway infrastructure with an annual traffic of more than 3 million vehicles; (2) For each railway infrastructure with an annual traffic exceeding 30,000 train crossings; (3) For agglomerations with more than 100,000 inhabitants whose list is annexed to the decree. Noise zones were developed in 2008 in the Department of Landes. Four families of noise maps are the initial diagnosis according to four harmonised noise level indicators: Lden(level day evening night), Ln (level night), Lden above 68 dB(A) and Ln above 62 dB(A) Axes concerned in 2008: — motorway network: A63 A64, — national network: RN10, — departmental network: RD29 RD129 RD524 RD810 RD824 RD932E RD947, — Dax road network Reading these maps requires some precautions detailed below.