Rail Corrugation

Corrugation can affect the wheel-rail interface, vehicle-track interaction, and cause noise and vibration in both straight and curved tracks (especially in LRTs).

Rail corrugation/roughness can be measured simultaneous to geometry or as a separate inspection.

Reporting is according to a number of industry standards including Peak-to-Peak moving average (EN 13231-3:2006), Peak-to-Peak isolated points (EN 13231-3:2012), Percentage of D signals (EN 13231-2:2020) and one-third octave.