The detailed, execution-ready 3D model forms the core of successful Building Information Modeling (BIM). BIM offers outstanding potential for more efficient construction projects through better planning. The digital building model is the central source of all information and processes and enables well-founded decisions to be made on a solid data basis.
How reliable is your BIM model?
In every project, it is important to understand what information you need to provide to project partners, when and to what level of detail. It is equally important to know how reliable the information in a 3D model is and for which work processes it can be used.
Good BIM-based planning and a reliable 3D model can provide meaningful data for all project phases at the touch of a button, from costing and quantity takeoff to production. On the other hand, using a model that does not have the appropriate level of detail for the respective service phase can lead to delays and, in the worst case, serious errors on the construction site.
Level of Development (LOD)
Level of Development (LOD) describes the level of development of the components of a building model. LOD thus provides information on the level of detail of the parts of a 3D model in different phases of the work and how reliable the information on individual components in the 3D model is.
The American Institute of Architects (AIA) defines five basic levels from LOD 100 to LOD 500, ranging from the purely conceptual or graphical representation of the model (LOD 100) to the
