It's counterintuitive. The United States has been doing this for 40 years. Included in the USB I gave to the clerk, there's an extensive study they've done. I provided the InfraGuide document itself. The City of Calgary has been doing it for many decades, and it's done it very successfully. They would be a very good example, and you might consider inviting Jennifer Enns if you want to learn more about this. It has worked very well in the States, and it yields significant reductions in construction cost overruns and schedule slippage, if you do the engineering and architecture right.
On February 6th, 2018. See this statement in context.