European Union Agency for Railways

Acoustic rail roughness r(x)

Variation of the height of the rail running surface associated with rolling noise excitation, expressed as a function of distance x along the rail. Note 1 to entry: Acoustic rail roughness is expressed in µm.
Document
ISO
Context
International Standard
Origin document

ISO 3095:2013(en) Acoustics — Railway applications — Measurement of noise emitted by railbound vehicles

Reference Link
https://www.iso.org/obp/ui/en/
Release