Once construction begins, the actual progress is continuously updated into the 4D model. Components are color-coded to indicate their status, such as on-schedule completion or delays. This use of different colors visually represents the progress of the project, making it easier to track and understand.
Inspired by Toyota’s Kanban management system, which ensures just-in-time production through tools like receiving kanbans and production instruction kanbans, three signboards are designed based on the specific conditions of the construction site.
The first board presents an overview of the project and the overall schedule. The second board offers construction personnel key reference information, including the weekly schedule, construction tasks, critical processes, techniques, weather forecasts, and quality control points. The third board details the types and quantities of materials required each day.
Information is extracted from the 4D model to design these three dashboards. As the project advances, actual data is fed back into the model and dashboards are updated accordingly. The first board is updated monthly to reflect the overall project progress. The second board is refreshed weekly to communicate work plans, content, and critical points to construction staff. The third board is updated daily, outlining the day’s schedule and material supply plan. Dedicated personnel are assigned to gather materials and ensure the schedule is followed smoothly.
These three dashboards provide a visual representation of the project timeline, addressing the static and abstract nature of traditional dashboards. They help maintain seamless coordination between various construction processes.
The actual construction progress is constantly compared with the 4D model. If discrepancies arise between the actual progress and the planned schedule, the causes are quickly analyzed and adjustments are made to mitigate negative impacts. In cases of engineering changes due to weather, force majeure, or other factors, updates are promptly fed back into the 4D model to revise the schedule, personnel assignments, and material allocations based on the new project requirements.
By continuously adjusting the 4D model, construction teams can access the latest progress information and adapt their workflows accordingly, preventing delays caused by poor communication and outdated data.
Must log in before commenting!
Sign Up