Ken Stowe (Autodesk) organized and moderated a session at AU last year on ROI of Utilizing BIMs for Builders. Builders from several companies shared how they are using BIMs, some of the challenges they've encountered, the benefits, and then some metrics associated with that use. The information was great, so the company has been watching the recording of it. It has gotten me thinking about our own metrics.
With regard to our VDC adoption, we are in an interesting place right now. We are wrapping up our involvement in our first VDC projects (Gen I & Gen II projects) while we are working Gen III projects, all of which include a model sharing component and several of which contractually require virtual construction. It almost hurts to look at earlier projects - we are more efficient now and the tools have come so far in just 2 (almost 3!) years.
There is one exciting thing about wrapping up these Gen I & II projects - we finalize our ROI for VDC on the project (and then with much fanfare, we present to John Tocci, other Tocci execs and the project owner).
Calculating ROI is difficult and is definitely up for interpretation. Our take on it: document everything we used the BIM for on the project (in a ridiculous spreadsheet that includes 20 different tabs, hyperlinks and formulas that I always manage to 'break' - although I always fix them before the VC Coordinator on the project notices) and then figure out what would have happened if we hadn't used the model for that (working with subcontractors, supers, etc.).
Here are two examples from one of our projects - you'll probably have to click on the image to actually read the text (I couldn't get it any larger and was too lazy to retype):
From there, we add up the totals and do a little math to figure out total ROI; for the project referenced above, it turned out to be:
Of course, anyone can come in and say that issues could have/would have been found without VDC, but it does give us a sense of what VDC has contributed project. And at least it starts the discussion. How is everyone else calculating VDC? Any comments/criticism on the examples I shared? Any feedback is great, as we want keep improving as much as possible.