Simple download service (Atom) of the dataset: AGREGATION of Type A Strategic Noise Maps with a large infrastructure such as National Road.

The European Directive 2002/49/EC 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. 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. Type A card: —Areas exposed to more than 55 dB(A) in Lden —Areas exposed to more than 50 dB(A) in Ln — LD card (Lden) Sound level indicator means Level Day-Evening-Night. — Map LN (Ln) Sound level indicator for the night period between 22.00 and 06:00. Aggregation carried out with the QGIS MIZOGEO plugin made available by CEREMA. Data source: CEREMA《欧盟2002/49/EC号环境噪声评估与管理指令》旨在统一评估欧盟成员国境内的噪声暴露情况。本指令将噪声地图定义为依据噪声指标描述噪声状况、标明限值超标情况及受暴露人数的数据可视化成果。 噪声地图不具备强制约束力，此类文件仅为参考资料，不具备法律强制执行效力。不过作为可视化图形载体，噪声地图可作为地方规划方案（Local Planning Plan, LDP）的补充材料。在城市交通规划方案（Urban Travel Plan, UDP）框架下，噪声地图可用于划定基准基线与需优化交通管理的重点区域。 A类卡片： —— 暴露于Lden声级下超过55dB(A)的区域 —— 暴露于Ln声级下超过50dB(A)的区域 —— Lden声级指标（LD卡）：指日间-晚间-夜间综合声级 —— Ln声级指标（LN地图）：对应22:00至06:00的夜间时段声级 数据聚合操作由CEREMA提供的QGIS MIZOGEO插件完成。 数据来源：CEREMA