Road-Rail vehicle R DUOTRAM H is equipped with an insulated working platform for maintenance operations and repairs of catenary lines under live OLE and meeting all safety requirements. Double-scissor type elevating platform NPi 400 enables full unlimited rotation around its axis. Horizontal reach, size and loading capacity of the platform meet demanding requirements for maintenance work on catenary lines. The platform is remotely controlled, in the emergency mode it can be controlled from an emergency control panel.  During ride on rails power transmission is effected hydrostatically by means of pump and hydraulic engines. The vehicle is equipped with CCTV cam system for reverse ride, monitored on LCD display in the driver’s cab, railway lights and illumination system for work at night. All operations on the railway track are controlled electrically from the driver’s cab, the rail gear operations are automatically controlled and monitored on the board-PC.