GEODIS, tested the use of a complex mobile mapping system called MOMAS on railroads. GEODIS, the largest geo-information company in Central Europe, tested the use of a complex mobile mapping system called MOMAS on railroads. The test took place in the VUZ (Výzkumný Ústav Železniční, a.s.) Velim Test Center which is a significant European test center. Its uniqueness rests especially in the possibility of reaching speeds of up to 250 km/h on the railroad tracks. "Although the manufacturer of the main parts of the system has experience with several railroad projects, this was a first for us, the operators, and for MOMAS as a whole" commented Jan Kohout, a specialist on mobile mapping of GEODIS. The Velim test circuit was traversed eight times in total, with a total mileage of 32 km. Operation with as well as without trolley voltage was tested, as well as speeds of 40 and 80 km/h. It was found that the influence of voltage on the quality of the resulting data is negligibl...