This is the terminology used for a vehicle that can both travel on the road with its 4 wheels on tires, but also on railway tracks using 2 additional railway wheels which keep it in the rails. These very versatile vehicles facilitate maintenance and upkeep work on railways by being able to get supplies from areas close to construction sites by road and then be perfectly positioned on the rails.
The Ro-V149 grinder is a roadrail of compact size for use in main lines and also public transport networks.
General purpose of the grinding unit is grinding of main tracks as well as turnouts with rotating stones, contact grinding and removal of corrugation and particular defects such as squats, headchecks and pittings.