Paving the way to the future Stoney Trail Constructors is a joint venture formed to build the Northeast Stoney Trail outside Calgary. Keith Regan learns how the public-private partnership design-build-operate approach is reaping savings in both time and cost. Compared to their neighbors to the south in the United States, Canadian government agencies have become far more comfortable with the public-private partnership model of designing, funding, building, and operating highways, bridges and other  infrastructure under a single contract.