Preliminary concepts and specifications for a self-propelled wagon

Self-propelled wagons represent one of the key technologies needed to make the freight sector more attractive. SPFWs can serve a wide variety of use cases, among them the scenarios presented here, many of which pose different challenges and requirements with regard to the concept and technical specifications of the vehicles and their drivetrains. One pair of possible configurations is presented above; one a highly efficient direct drive, the other a highly capable geared drive system. Components can either be mounted to the wagon or concentrated in the bogie. However, in order for any of these concepts to live up to their potential of increasing the attractiveness and competitiveness of rail freight, it is important that they do so without adding unnecessary cost and complexity to the system as a whole. The use of standard parts and conventional materials where possible can be an important means of controlling costs as new functions and capabilities are added to future wagons.