Isophones - LNight (ULR)

The isophone tapes show the spatial reproduction of the sound propagation for the noise index LNight (night noise index) of round 4 of the environmental noise mapping. Within agglomerations, a combined presentation of the main lines with the other lines and marshalling and transhipment stations was carried out.

等声级磁带（isophone tapes）展示了第四轮环境噪声制图中针对夜间噪声指数（LNight，night noise index）的声传播空间复现结果。在城市集聚区内，已完成干线线路与其他线路、编组站及转运站的整合展示。