“With the HSG-city, we found an adequate equipment for the noise-reducing rail maintenance. This is not only demonstrated by the regular corrugation measurements. The most convincing evidence of the effectiveness of the regular grinding campaigns is the marked reduction of complaints by the residents. Moreover, the compact grinding machine enables us to completely treat the extensive network twice a year and also perform special programmes such as the removal of lubricating film.”

Peter Ahrens, Head of the track division at Rheinbahn AG, Düsseldorf