Dataset Direct Download Service (WFS): Layer of strategic noise maps of type C index LN of railways in Charente-Maritime

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. Carried out pursuant to Article 3-II-1-b of the Decree of 24 March 2006, the map represents the areas where the Lden and Ln boundaries are exceeded. — LD (Lden) Sound level indicator means Level Day-Evening-Night. — LN (Ln) Sound level indicator for the night period between 22.00 and 06:00.《欧盟2002/49/EC号环境噪声评估与管理指令》旨在协调各成员国对噪声暴露的统一评估。该指令将噪声相关表征定义为：基于噪声指标（noise indicator）描述噪声状况的数据呈现，用以标明限值超标情况以及受噪声暴露影响的人口数量。 噪声地图并非规范性文件。 此类文件仅为信息参考文档，不具备法律强制执行力。但作为可视化图表元素，其可作为地方规划方案（Local Planning Plan, LDP）的补充材料。 作为城市交通规划方案（Urban Travel Plan, UDP）的组成部分，噪声地图可用于确立评估基线，并划定需优化交通管理的目标区域。 本噪声地图依据2006年3月24日颁布的法令第3-II-1-b条制定，用于表征Lden与Ln声级限值超标区域。 — 声级指标LD（Lden）指昼间-傍晚-夜间声级（Level Day-Evening-Night）。 — 声级指标LN（Ln）指22:00至06:00夜间时段的声级指标。