Description

DMA has probably the longest and more sound experience in the world in measuring the rail profile with an accuracy good enough to evaluate the wheel-rail interface dynamics, including the equivalent conicity. The equivalent conicity will soon be a mandatory parameter to control for every main line. The interoperability of different train types, especially on high speed lines, demands for a tight control of the track parameters. The track parameters must meet the UIC518 and UIC519 values, as the trains have been certified according to track conditions assessed in these leaflets. DMA has pioneered this work: the DMA software has been used by the UIC519 commission to check the algorithms in the norm.