Areas exposed to noise municipal national motorway for map type A indicator LN — unlicensed road network

Areas exposed to noise municipal national motorway for map type A indicator LN — unlicensed road network Noise-exposed areas for type A map LD indicator — rail network Noise level zones describe a noise exposure situation based on a noise indicator or area affected by noise. They are used primarily for the preparation of strategic noise maps pursuant to Article R.572-5 of the Environmental Code.针对A类地图LN噪声指标的噪声暴露区域——涵盖市政公路、国家高速公路及无许可道路网络 A类地图LD指标对应的噪声暴露区域——铁路网络 噪声级区域基于噪声指标或受噪声影响的区域来刻画噪声暴露状况，主要用于依据《环境法典》第R.572-5条编制战略噪声地图。