LOD Specification Enhances Communication in BIM Projects

摘要

THE KEY TO A successful construction project is clear communication from the initial design by the architect, through completion by the contractors. While Building Information Modeling (BIM| can serve as the communication tool between the different parties involved in a project, the transfer of information via BIM is not always seamless."Modeling can be very precise, but it is only effective if everyone understands the level of precision that they are receiving," says Dmitri Alferieff, senior director of virtual construction for Associated General Contractors of America. Because people have different perspectives and different expectations, it is important to define the intent of the information in a model as it is passed from one party to another, he says."If the model is passed along to a person or team within the same company, there is no problem understanding the information, because they understand how the information is meant to be used, but if the model will go from an architect to a contractor, there is a need to define the purpose of the information in the model," he says. "For example, an architect may place a table and chairs in a model to illustrate the vision for the room's use, but there is no expectation that the contractor place a duplicate of the table and chairs in the room." However, without a clear, universally accepted definitions of the levels of developmentthat the model portrays, the contractor doesn't know if the model shows "a" table and chairs, "the" table and chairs, or "this size" table and chairs, which can lead to confusion, extra time and additional cost.