BIMTakt - optimization of production planning through the holistic integration of BIM and Lean Construction

Many construction projects are still planned and controlled using outdated tools. Project specific information are derived from simple 2D drawings. The controlling of the project schedule is still done using Gantt-charts. The biggest dis-advantage of this static distribution of information is the high number of potential flaws due to the loss of information. So many construction projects are characterized by ever-changing circumstances which would demand for an agile and dynamic reaction during every phase of the project. The digital BIM-based working method (building information modeling) has become a central tool in order to obtain reliable planning and minimize the loss of information. In recent years Lean Construction Management along with its tools such as takt time planning takt and time control managed to establish itself in the German construction industry. Even though these methods have many advantages they have not been used holistically. Because of that a concept is being developed which will enable a fully automated generation of detailed takt plans from the respective Building Information Model. In the beginning the necessary constraints will be evaluated. Following, all the necessary geometrical and process-relevant information will be automatically derived from the model in order to then generate a respective takt plan. By doing so, the current process of takt time planning, which in fact is mostly analog, will be automated and integrated into a BIM-based working method.