4D BIM for Construction

Jacqueline Chen

4D Delivery Specialist, Virtual Design and Construction

Recent Posts

MAXIMIZE THE VALUE OF 3D DATA THROUGH 4D PLANNING

Posted by Jacqueline Chen on Oct 29, 2015 3:00:00 PM

Several months ago, I was involved in a complicated heavy highway project which included the reconstruction of multiple State roads, the preservation of several bridges, the replacement of partial MSE retaining walls underneath ramps, the replacement of two sign structures and upgrades to existing traffic signal systems, not to mention traffic switches, closures and detours of ramps, intersections, overpasses and pedestrian walkways. I recalled that my morning started with a review of drawings (296 pages, half-size) with a construction manager who had over 25 years of experience. We were requested to provide a draft of the design schedule along with a PS&E submission by end of the following week. Seven revisions were done after, and a “what if” analysis was performed to estimate open to traffic time of one major ramp and predict project finish dates with different notice-to-proceed dates.

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