DIN EN 16727-3:2017-05

This European Standard specifies minimum requirements and other criteria for assessing the general safety and environmental performance of noise barriers and related devices acting on airborne sound propagation under typical rail-side conditions. Requirements for more onerous conditions are a matter for consideration by the designer. This European Standard is one of the series EN 16727 "Railway applications - Track - Noise barriers and related devices acting on airborne sound propagation - Non-acoustic performance" as listed below: - Part 1: Mechanical performance under static loadings - Calculation and test methods; - Part 2-1: Mechanical performance under dynamic loadings due to passing trains - Resistance to fatigue; - Part 2-2: Mechanical performance under dynamic loadings caused by passing trains - Calculation method; - Part 3: General safety and environmental requirements. While performing their primary function, noise barriers and related devices acting on airborne sound propagation installed along railways should not pose hazards to rail users or other people in the vicinity or to the environment at large. Noise barriers and related devices should not assist the spread of fire from adjacent verges or nearby land. Fire resistance in accordance with particular standards can in addition be required to minimize risk to adjacent premises, or to rail users in confined corridors. Noise barriers and related devices should not reflect light towards train drivers in such a way as to compromise rail safety. They should be made from materials which do not emit noxious fumes or leachates as the result of natural or industrial processes, or as the result of fire. Noise barriers should allow a means of escape by rail users and access by operatives in the event of an emergency. Noise barriers and related devices acting on airborne sound propagation are not, in general, expected to resist the impact of vehicles, but designers can utilize information about the consequences of such impact load to establish the requirements for protection of rail users and passers-by. The responsible standardization committee is NA 087-00-01-11 UA "Lärmschutzwände an Schienenwegen" ("Noise barriers at track").