Efficient train systems for freight transport is an interdisciplinary that was conducted by "Railway group KTH" at the Royal Institute of Technology, and financed by the Swedish National Rail Administration, the Swedish Transport and Communication Board, the Swedish Agency for Innovation Systems, the Swedish State Railways, and Green Cargo. The major part of the study was conducted from 2002-2004. One of the points of departure in the present project is the report "Järnvägens utvecklingsmöjligheter på den framtida godstransportmarknaden" (The Railways' Development Prospects in a uture Freight Transportation Market) that was published in 2000. The project was conducted as an interdisciplinary project, principally involving senior researchers from different departments at the Royal Institute and also a number of outside experts.