Track measurement machine is used to measure and calculate the relative amount of the fixed point from the road, track lifting volume, track lining volume, and the gauge, ultrahigh, mileage and other data, which meet the new lines, overhaul and maintenance work required tamping. At the same time, these data can be directly input to the tamping machines with the ALC system. The date are used as part of tamping machine control parameters to complete the track lifting and track lining.

Due to the reference point of measuring track lifting and track lining values is the fixed point----Geodetic coordinate system is a fixed point, The value of measurement is absolute value reference to the geodetic coordinate system. Based on these values using tamping machine for lifting, lining and tamping. The line can not only achieve the ride and keep the geometry, but also guarantee the relative to the fixed point position precision, so that the line back to the design state.

Track measurement machine can work in a straight line, curve and turnout ,to finish simultaneously the measurement of, versine, leveling, superelevation, gauge of mileage location. The working speed is no less than 2.5 km/h.