DANSK DS/EN 16951-2:2018 铁路应用 轨道 影响空气传播声音的隔音屏障和相关装置 长期性能评估程序 第2部分：非声学特性
Railway applications – Track – Noise barriers and related devices acting on airborne sound propagation – Procedures for assessing long term performance – Part 2: Non-acoustic characteristics