Simple download service (Atom) of the dataset: L_CBS_NAT_3M_LDEN_091

Strategic noise maps are diagnostics of noise exposure of populations in a territory. They make it possible to assess the exposure of people to noise in the vicinity of major transport infrastructure and in large agglomerations. Departmental roads and national roads 4 index level: 50 to 75 decibels-55 to 75 decibels-65 to 75 decibels-70 to 75 decibels战略噪声地图（Strategic noise maps）是针对特定区域内人群噪声暴露状况的诊断评估工具，可用于评估主要交通基础设施周边及大型城镇集聚区域内人群所承受的噪声暴露水平。针对省道（departmental roads）与国道（national roads），共设置四级噪声指数标准：50至75分贝、55至75分贝、65至75分贝以及70至75分贝。