Various researches have reported that as much as 30% of the cost of construction is wasted in the field due to coordination errors, wasted material, labor inefficiencies and other problems in the current construction approach. This waste and inefficiency is not readily discernible or tracked in project cost data. But over time, the price of this waste has been accepted as a part of the cost of doing business and is built into every estimate, budget, subcontractor bid, contractor markup, contingency, allowance, and the like. A major contributor to inefficiency in the delivery of capital projects is the horizontal and fragmented supply chain of the AECO industry.
To significantly improve efficiency in project delivery, the building design and construction process must, through better integration of information and process optimization, achieve levels of coordination far in excess of the current norm. This desired level of optimization is similar to that achieved by the manufacturing industry through prototype development and product refinement prior the start of production. These improvements became possible only after the development of the same technology that now forms the backbone of the building information modeling applications now being adopted by the AECO industry. BIM/IPD holds the promise for the building industry to achieve significant improvements and reduce waste through simulating the building process in a virtual environment. The potential advantages span a wide range of outcomes including a better tool for design and engineering documentation and analysis, more robust cost estimating, improved trade coordination, optimized means and sequence of work, a powerful communication tool for design intent and construction plan, and an information rich as-built model for facilities management.
BIM simulation creates a virtual feedback loop such that design and construction coordination challenges including interface and sequence can be identified prior to commitment of field resources. Often, the cost of field changes includes a significant non-value added component that far exceeds the betterment value for the revised scope of work. These non-value added costs include premium costs associated with change orders, schedule delay, impact on other trades and the effort required to coordinate and manage changes during the construction phase. In short, process simulation enabled by BIM significantly increases predictability in the project delivery process by compressing all pertinent project data giving a single user a global and synoptic view of the project. This predictability encompasses all major elements of the project including geometric (visualization and physical conflicts), behavioral (engineering and operational analysis), and temporal (phasing and scheduling) and cost (estimating and budgeting). Traditional “field level” issues are flagged earlier in the process at a time when changes are still inexpensive to make. It has been said that a construction Project Manager’s primary role is to solve problems. We believe it is possible to reverse this role from a troubleshooter to a conductor whose energy is focused on implementation of a well-rehearsed plan.
- Develop BIM models for coordination purpose only
- Enhance/update the Design level BIM models for coordination purpose
- Assemble BIM/3D models from various software platforms to generate single coordination BIM model for “Clash Detection”
- Create a collaborative environment, with all stakeholders working towards the same goal of finding the best possible solutions to bottlenecks
- Generate analysis reports and maintain a log for the all the issues raised with respective status
- Assist to better manage the transition from the design phase to the construction phase
- Assist to simulate the sequential phases of a project before the construction phase
- Help to lead to informed decisions based on “real time” scenarios