Dataset Direct Download Service (WFS): Noise maps on departmental roads: Sound level zoning (day, evening, night) 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.2002年6月25日发布的《关于环境噪声评估与管理的2002/49号欧洲指令》确立了噪声管控政策的整体框架。 本数据集系为响应2006年3月24日发布的《关于编制噪声地图与环境噪声防治规划的2006/361号法令》而生成。 该法令明确规定需编制噪声地图与环境噪声防治规划的场景如下： 1. 年均车流量超过300万辆的所有道路及高速公路基础设施； 2. 年通行列车次数超过3万次的所有铁路基础设施； 3. 居民人口超过10万的聚居区，其名录已作为该法令的附件予以列明。 2008年，法国朗德省完成了噪声区划工作。基于四项统一的噪声级评价指标，共生成四类初始诊断噪声地图：昼间-夜间时段等效声级（Lden，level day evening night）、夜间时段等效声级（Ln）、高于68dB(A)的Lden等级、高于62dB(A)的Ln等级。 2008年涉及的噪声管控轴线包括： — 高速公路网络：A63、A64； — 国道网络：RN10； — 省道网络：RD29、RD129、RD524、RD810、RD824、RD932E、RD947； — 达克斯道路网络 解读此类噪声地图需遵循下文详述的若干注意事项。