You can compare the displacement data for a run with that obtained from a run using the RailMeasurement Rail Corrugation Analyser (RCA) or Medium Speed Rail Corrugation Analyser (MSRCA). This is recommended for advanced users of the CAT software only. For data generated by the RailMeasurement Versatile xRCA software (RCA or MSRCA), version 10.x or above, select File|Load Versatile xRCA Left rail data… or File|Load Versatile xRCA Right rail data…