Zusammenfassung
Summary
Laser scanning is a modern surveying technology allowing to obtain the surface of an object with high accuracy, point density and speed. Nowadays this method is actively applied in many spheres. Railway industry is one of them, in which this method is used for large-scale topographical mapping, creation of longitudinal profile, certification of rail infrastructure objects and in this paper rail track monitoring. Rail track monitoring requires the highest accuracy. For reaching an appropriate accuracy laser scanning should be carried out with high accuracy scanners using special targets as control points and keeping certain approaches. To guarantee high accuracy some control and check measurements are usually done. One of the places in which laser scanning method was started to be applied is the REDUS layout, where GNSS receivers and position sensors are tested, calibrated and validated statically or dynamically. In the paper the results of laser scanning application in the course of the regular base measurements for REDUS are presented. It is shown, that the method allows to represent a structure like rails with high precision.