Opportunities to model railways in 3D using Autodesk Revit. Experience from the ski station project outside Oslo where most subjects model in 3D BIM in Revit. Åge Langedrag who was BIM responsible for the project, together with hired resources from Cad-Q, has been responsible for finding method and ensuring that all disciplines models in 3D. All subjects divide the model into phases of construction. All drawings are coordinated and produced only from 3D models.