Based on project cases utilizing BIM technology, we can conclude that 4D-BIM information models enable visual simulation of construction progress. The key advantages include:
(1) Pre-inspection and Progress Optimization. During construction, schedules are often adjusted to reflect changing conditions. With BIM technology, the visualization feature allows continuous simulation by importing updated schedules into the 3D information model. By watching the virtual construction animation, teams can verify the correctness of task sequencing, assess the rationality of the construction process, and evaluate the feasibility of milestone targets. This enables timely adjustments to plans and objectives, ultimately optimizing the schedule to better coordinate construction activities.
(2) Enhanced Evaluation of Specialized Construction Plans. Complex, difficult, or high-risk sub-projects require specialized construction plans. Traditionally, these plans rely heavily on the experience of project managers, often lacking standardization and verifiability. BIM-based specialized plans incorporate actual site conditions and use virtual construction simulations to test feasibility in advance. This approach ensures the development of the most reasonable and practical specialized construction plans.
(3) Standardized Technical Briefings. Technical briefings provide instructions from engineers to construction workers before each task, ensuring a clear understanding and safe execution. Conventionally, these briefings relied on written reports with CAD drawings and schedules, which could be difficult for less experienced workers to fully grasp. BIM technology enhances this process by delivering technical requirements and demonstration of construction methods through animated visualizations. This approach is easier to understand and helps standardize operations. Additionally, workers can download these construction animations to mobile devices such as smartphones for repeated viewing and learning.
(4) Early Detection of Significant Progress Deviations. Using Navisworks, planned completion can be compared with actual progress. By setting task types to “Component” in TimeLiner and configuring color codes for different time points—such as system colors for start/end, yellow for early completion, and red for delays—project managers can visually track milestone progress. This clear visualization enables quick identification of deviations and timely corrective actions to keep the project on schedule.
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