Simple download service (Atom) 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《关于环境噪声评估与管理的2002/49/EC号欧盟指令》旨在统一欧盟各成员国的噪声暴露评估标准。该指令将噪声场景定义为依据噪声指标描述的数据表征，用以标明限值超标情况以及受噪声影响的人口数量。（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效力，仅为不具备法律强制执行力的参考性信息文件。但作为可视化图形资料，其可作为地方规划计划（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，噪声地图可用于确立基线与目标区域，以指导开展更优化的交通管理工作。为量化某一基础设施在单日平均水平下的噪声排放水平，欧盟层面推荐针对所有交通模式采用两类指数：Lden指数与Ln指数： — Lden指数：代表全日24小时的平均噪声水平； — Ln指数：代表22时至次日6时时段的平均声级（夜间等效平均噪声）。 噪声水平评估依托融合了影响噪声及其传播的核心参数的数字模型（计算机软件）开展，此类参数包括交通数据、场地拓扑结构、气象数据等。生成的噪声地图随后将与受影响区域的人口统计数据交叉比对，以估算暴露于噪声污染中的人口规模。噪声地图上标注的噪声水平源自近似计算方法，在被认定为关键的噪声区域中，该计算结果往往高于实际值（保守高估）。现场噪声检测可精准测定某一建筑及其居住者可能暴露的噪声水平。 夜间噪声阈值超标区域分布图（C类地图）。 该地图用于展示（噪声地图编制当年）Ln指数超标的区域（限值为62分贝，夜间）。 大西洋比利牛斯省的主要道路基础设施。 相关道路的遴选依据2018年10月12日发布的省长令第64-2018-10-12-001号，该政令批准了大西洋比利牛斯省内年车流量超过300万辆的陆地交通基础设施战略噪声地图。 — A63、A64号国家高速公路； — 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、巴约讷、比亚里茨、比耶尔、比扎诺、热洛、昂代、伊德龙、瑞朗松、莱斯卡尔、隆斯、奥洛龙-圣玛丽、波城、圣让德吕兹等市镇的多条市镇级道路。