(1) Regarding cost, traditional methods of calculating engineering quantities have long required cost engineers to perform tedious and time-consuming tasks. Automated quantity calculation methods based on BIM free them from these repetitive duties, allowing them to focus their saved time and energy on more valuable work.
From an accuracy standpoint, BIM-based automated quantity calculations significantly reduce the likelihood of errors compared to manual methods, making them more reliable. Speed is another advantage: BIM can perform these calculations much faster, enabling timely cost information feedback and better cost control throughout the different phases of a project. Lastly, design changes—which often pose challenges for cost engineers using traditional methods—can be more easily accommodated with automated BIM calculations.
(2) In terms of construction management, traditional scheduling plans are often rigid and involve considerable workload for adjustments. By integrating scheduling plans within BIM models, schedules can be modified at any time, allowing for more flexible and precise day-to-day planning. Additionally, BIM enables construction simulation, which is especially useful for complex or critical project components. These simulations help construction teams develop improved plans and boost overall efficiency.
Because BIM models contain comprehensive building information and offer high visualization capabilities, they provide a more effective alternative to traditional 2D drawings for guiding on-site construction. This reduces errors caused by misinterpretation of drawings by field personnel. Moreover, combining BIM with technologies such as radio frequency identification (RFID), internet technologies, and geographic information systems (GIS) enhances the ability to guide, record, track, and analyze site activities. This integration supports accurate, real-time project management, improves construction quality, and minimizes errors on site.
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