Elaboration and Modeling of the Railway Infrastructure Using Data from Airborne and Mobile Laser Scanning

摘要

In the paper the authors decided to present the capabilities of the application of the technology of mobile and airborne laser scanning both in surveying and modeling of railway infrastructure. First of all, they presented the possibility of using the laser scanning technology and in particular mobile laser scanning in terms of data collection and analysis for the tasks associated with the elaboration and diagnostics of railway infrastructure. For the mobile laser scanning the object of the study was the railway station in Slomniki, on a section of the railway line No. 8, and length of about 550 meters. The cloud of points together with photographic documentation was obtained using Riegl VMX - 450 system. Data from the airborne laser scanning included two different fragments of the railway line. The first one is located in Strzalkowo in the Wielkopolskie Voivodship (railway tracks along with the station building and the second one in Bochnia in the Malopolskie Voivodship. The section in Strzalkowo was about 470m and in Bochnia 302m. For example, the density of point cloud in Strzalkowo was 10 points/m2, while in Bochnia 17 points/m2.