Road-Rail vehicle S DUOTRAM 4X4 is equipped with insulated working platform and stowage compartment. The vehicle is designed for use and driving on road as well as for use and running on rails of tramway tracks, and is intended for maintenance work, transportation of small materials, repairs on overhead line equipment, under live OLE, and in compliance with all safety requirements. Scissor-type elevating platform NPi 400 enables full 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 remotely and can also be controlled by means of emergency control. Power transmission on rails is effected by means of road tyres. The vehicle is equipped with CCTV cam system for safe reversing, with colour LCD display in driver’s cab, lights for work and running on tramway tracks as well as lights for work at night. All operations on rails are controlled electrically from the driver’s cab, the rail gear functions are automated and monitored.