Engineering changes are an inherent risk in project management. However, combining change management with BIM technology can significantly reduce the frequency of changes, as well as the resulting delays and cost overruns.
Design changes are the most direct factor influencing project costs. During construction, the time elapsed from identifying a problem to implementing a change has a major impact on the project schedule and directly affects labor and other expenses. Poor change management often leads to further modifications and cost increases. The adoption of BIM technology offers a promising solution to this challenge.
According to the Center for Integrated Facilities Engineering (CIFE) at Stanford University, which analyzed 32 projects, BIM can eliminate up to 40% of off-budget changes. To reduce changes fundamentally, it is crucial to address issues at their source. Visual building information models are easier to modify and refine before construction drawings are finalized. Designers can quickly spot errors and make corrections using 3D design. These 3D visualization models accurately represent spatial layouts and pipeline routing across various disciplines, revealing conflicts instantly, enhancing design precision, and enabling thorough 3D reviews. This greatly reduces errors, collisions, omissions, and deficiencies.
By eliminating design flaws before delivering final plans, subsequent design changes can be minimized. In contrast, traditional 2D designs are prone to errors and conflicts. Coordination using 2D drawings often requires double the effort but yields only partial results. Problems are typically discovered late and only on the surface, while deeper, systemic issues remain hidden, inevitably leading to numerous design changes later on.
BIM’s collaborative design capabilities are extremely powerful. They help reduce conflicts between disciplines and connect components, making it easier to detect potential changes early. A project’s design involves multiple aspects—overall layout, architecture, structure, plumbing, electrical, HVAC, and power systems—as well as specialized subcontractors such as curtain walls, steel structures, intelligence systems, and landscaping. Effective communication and coordination among these stakeholders are essential.
Using BIM for coordination ensures that unreasonable or problematic solutions are identified and resolved during the design phase, drastically reducing design changes. BIM enables true collaborative modification, which helps save significant development costs.
BIM technology has transformed the traditional “siloed” design process—previously reliant on manual coordination and segmented communication—into a parallel, interactive workflow. Errors within individual disciplines are relatively few; the main causes of design changes stem from poor coordination between disciplines and between design and construction. BIM’s comprehensive coordination tools effectively address these challenges.
Even during construction, if changes arise, BIM enables effective management and dynamic control through shared, updated models. By associating model data and enabling remote updates, the building information model stays current with design changes. This eliminates information barriers and reduces communication time among designers, owners, supervisors, contractors, and suppliers. As a result, claims and approval processes become more timely, allowing dynamic cost control and orderly project management.
Engineering professionals have long accepted frequent changes as inevitable. However, the impact of engineering changes is far-reaching, affecting cost, schedule, and quality in profound ways. Unfortunately, many projects suffer from chaotic and disorganized change management, worsening these effects.
Design changes are not just a headache for designers—they also waste the labor and effort of construction workers and cost engineers. Historically, delays in information flow meant that changes were often received after construction was completed, forcing costly restarts and massive waste. Cost engineers, in particular, face frustration as they must redo calculations after every design change. This cycle of inefficiency is difficult for outsiders to fully grasp, but BIM technology has the potential to eliminate these issues once and for all.
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