Dataset Direct Download Service (WFS): Road noise zone for Type A maps indicator Ln for the 3 rd deadline in Maine-et-Loire(49)

Aggregation of generic tables describing Noise Zones, for an infrastructure, type of infrastructure concerned ROUTE (R), map type A according to indicator Ln (night). This map is a graphic representation that locates areas exposed to noise using isophone curves ranging from 50 dB to 70 dB and more, by step of 5 dB. Map to be made under the CBS under Articles R.571-37 and R.571-38 of the Environmental Code. Aggregation obtained by the QGIS MIZOGEO plugin made available by CEREMA.本数据集聚合了针对基础设施的噪声区描述通用表格，所涉基础设施类型为道路（ROUTE, R），对应以夜间噪声指标Ln为依据的A类地图。该地图为可视化制图成果，通过以5分贝为间隔、覆盖50分贝至70分贝及以上的等声级线（isophone curves），标注受噪声影响的区域。本地图需在CBS框架下，依据《环境法典》R.571-37条与R.571-38条的规定编制。本次聚合数据由CEREMA推出的QGIS MIZOGEO插件（MIZOGEO plugin）生成。