Regular wheel wear is common in light rail vehicles. Faults such as wheel flats, oval wheels and out-of-roundness must be monitored before further damage occurs. The Wheel Out of Roundness Monitoring (WORM) system is specifically developed for the detection of flats and out-of-roundness of wheels on heavy-rail and light-rail vehicles. Using on-line vibration measurement technology, the WORM system provides a reliable, fast and affordable technology for the detection of wheel flats, out-ofroundness and polygonisation. To find out more, download the free white paper.