The project is using model-based design and BIM (Building Information Modeling)-enabled software. This is in keeping with Bane NOR's stated policy to substitute traditional drawings and tables with 3D models in its projects. The goal is increased efficiency.
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Bane NOR has adopted a BIM strategy which applies the following requirements to contractors:
- Model-based methods and tools must be used for the planning, design and construction of all railway infrastructure projects.
- "As built" documentation of completed projects must be model-based. There are requirements for model-based documentation from consultants, suppliers and contractors. Bane NOR will own the rights to all project data throughout the process. It should also be possible to use the models or data for future operation and maintenance of the railway infrastructure.
The BIM strategy is based on the concept of using 3D models instead of traditional drawings and tables. During the construction phase, the model will be available at the site and will be actively used for monitoring quality, quantity control, progress and communication.
For the Drammen-Kobbervikdalen project, the use of model-based design entails linking between the model and its specifications, and generating quantities etc. from the models. All models will use metadata, providing the models with information which is usually found in drawings and tables. Models and progress plans are coupled together in a 4D model to visualise execution of the project.
A VR model is being produced for the project. By using computer gaming technology, the entire BIM model can be brought into the gaming world. This provides many unique opportunities in terms of visualisation. With or without VR goggles, the viewer can travel inside the model, alomng the railway lines, inside station areas and so forth. This will allow anyone working with the project to be able to evaluate the plans, as well as informing passengers, neighbours and others affected by the works about the project in its finished state.