Map Viewing Service (WMS) of the dataset: Noise card (C NUIT LNC card) — Department of the Pyrenees-Atlantiques

The European Directive 2002/49/EC of 25 June 2002 on the assessment and management of environmental noise aims at a harmonised assessment of exposure to noise in the Member States. It defines them as representations of data describing a noise situation according to a noise indicator, indicating exceedances of limit values, the number of persons exposed. (Article 3 of the Decree of 24 March 2006 and Article 7 of the Decree of 4 April 2006). Noise maps are not prescriptive. These are information documents that are not legally enforceable. As graphic elements, however, they can supplement a Local Planning Plan (LDP). As part of an Urban Travel Plan (UDP), maps can be used to establish baselines and target areas where better traffic management is needed. To quantify the level of noise emitted by an infrastructure over an average day, two indices are used, the Lden index and the Ln index, recommended for all modes of transport at European level: — Lden: representative indicator of the average level over all 24 hours of the day, — LN: representative indicator of the average sound level for the period 22h-6h. (average noise equivalent night) Noise levels are assessed using digital models (computer software) incorporating the main parameters that influence noise and its propagation (traffic data, field topology, meteorological data, etc.). The noise maps thus produced are then cross-checked with the demographic data of the areas concerned in order to make an estimate of the population exposed to noise pollution. The noise level shown on the noise maps is derived from a calculation method which gives approximate values and often higher than reality (maximists) in a noise area considered critical. An in situ noise control can determine precisely the noise to which a construction and its occupants may be exposed. Location maps of noise threshold exceedance zones (type C map), night. It is a map representing (for the year in which the maps are drawn up), the areas where the Ln values are exceeded. (62 db) (night). Main road infrastructure in the department of the Pyrénées Atlantiques. The roads concerned have been selected in accordance with the Prefectural Decree approving strategic noise maps of the Land Transport Infrastructures whose annual traffic is more than 3 million vehicles in the Pyrenees-Atlantiques department. (Prefectural decree of 12 October 2018 n°64-2018-10-12-001). — national motorways granted A63 and A64 — national N134 — departmental D2 D6 D9 D33 D37 D281 D309 D501 D635 D802 D810 D811 D817 D834 D911 D912 D918 D932 D936 D938 D943 D947 — several communal routes of the municipalities of Anglet, Bayonne, Biarritz, Billère, Bizanos, Gelos, Hendaye, Idron, Jurançon, Lescar, Lons, Oloron-Sainte-Marie, Pau, Saint-Jean-de-Luz2002年6月25日发布的欧盟《2002/49/EC号环境噪声评估与管理指令》，旨在实现欧盟成员国噪声暴露评估的统一化。该指令将噪声地图定义为：依据噪声指标描述噪声状况、标注限值超标情况与受噪声暴露人口数量的数据表征成果。（引自2006年3月24日政令第3条及2006年4月4日政令第7条）。噪声地图不具备强制性规范属性，属于不具备法律执行力的参考文档。但作为可视化图形元素，其可作为地方规划方案（Local Planning Plan, LDP）的补充材料。 作为城市交通规划（Urban Travel Plan, UDP）的组成部分，噪声地图可用于划定基准区域与需要优化交通管理的重点片区。为量化基础设施在单日平均工况下的噪声排放水平，欧盟层面推荐针对所有交通模式采用两类指标： — Lden指数：全天24小时平均噪声水平的代表性指标； — Ln指数：22时至次日6时时段的平均声级代表性指标（即夜间等效平均噪声）。 噪声水平评估依托集成了影响噪声及其传播核心参数的数字模型（计算机软件）开展，相关参数包括交通数据、场地拓扑、气象数据等。生成的噪声地图将与受影响区域的人口统计数据交叉比对，以估算受噪声污染影响的人口规模。噪声地图上标注的噪声水平源自特定计算方法，该方法会得出近似值，在被认定为关键的噪声敏感区域中，计算结果往往高于实际值（即“乐观估算”）。现场噪声检测可精准测定建筑及其居住者可能面临的噪声暴露水平。 夜间噪声限值超标区域位置图（C类地图） 该类地图用于展示噪声地图编制当年，Ln值超标的区域（夜间限值为62分贝）。 大西洋比利牛斯省（Pyrénées Atlantiques）的主要道路基础设施： 本次选取的道路符合《关于批准大西洋比利牛斯省年车流量超300万辆的陆路交通基础设施战略噪声地图的省长令》要求。（引自2018年10月12日省长令第64-2018-10-12-001号） — A63、A64号国家级高速公路 — N134号国家级公路 — D2、D6、D9、D33、D37、D281、D309、D501、D635、D802、D810、D811、D817、D834、D911、D912、D918、D932、D936、D938、D943、D947号省级公路 — 昂格雷（Anglet）、巴约讷（Bayonne）、比亚里茨（Biarritz）、比耶尔（Billère）、比扎诺（Bizanos）、热洛（Gelos）、昂代（Hendaye）、伊德龙（Idron）、于朗松（Jurançon）、莱斯卡尔（Lescar）、隆斯（Lons）、奥洛龙-圣玛丽（Oloron-Sainte-Marie）、波城（Pau）、圣让德吕兹（Saint-Jean-de-Luz）等市镇的多条社区道路