Road-Rail vehicle R DUOTRAM H is designed for driving and working on the road and also for driving and working on the railway and tramway track, especially for work on the overhead line. The vehicle is equipped with front and rear rail gears, double-scissors working platform NPi 400, body superstructure (workshop) and pantograph. Double-scissor elevating work platform enables unlimited rotation around its axis. Horizontal reach, size, and loading capacity of the platform meet the demanding requirements for overhead line maintenance. The platform is controlled by radio remote or emergency control. Power transmission on the driven rail wheels is hydrostatic, by means of pump and hydraulic engines. The vehicle is equipped with CCTV cam system for safe reversing and colour LCD display in driver’s cab, railway lights and as well as lights for work at night. All operations on rails are controlled electrically from the driver’s cab, rail gear functions are automated and monitored, and displayed on board computer.