Levels of Development (LOD) are integral to the construction industry because they allow model authors to clearly define the reliability of their models and help downstream users understand the limitations of the models they receive. By standardizing the degree of reliability and accuracy required at each project stage, LOD minimizes misunderstandings among stakeholders, optimizes resource usage, and aids proactive decision-making.
Do all AEC projects use Levels of Development (LOD)?
While Levels of Development (LOD) comprise a valuable framework widely used in the architecture, engineering, and construction (AEC) industry, its adoption varies based on project-specific factors. Complex projects with intricate designs, those adhering to specific regulations, and projects with experienced teams are more likely to implement LOD comprehensively.
How is BIM involved in Levels of Development (LOD)?
Building information modeling (BIM) and Levels of Development (LOD) are closely intertwined in AEC. BIM forms the digital backbone for LOD implementation, enabling creation, management, and sharing of detailed digital representations of building elements. LOD establish a framework that specifies the depth of detail and accuracy to be included in BIM models at various project stages.
How are Levels of Development tracked in projects?
Levels of Development (LOD) are tracked in projects through an LOD matrix, an essential component of a BIM execution plan (BEP). In the LOD matrix, project teams define and outline LOD requirements for specific building elements and systems at various project stages. Responsibilities for creating and maintaining BIM models at each Level of Development are assigned to relevant stakeholders. The LOD matrix serves as a reference, guiding the creation of BIM models to meet the designated LOD requirements, and it is continuously monitored for compliance.