How come Highway 201 Stoney Trail wasn't built as a freeway and is only being upgraded to one after its completion?

Highway 201, known as Stoney Trail, was initially designed as a ring road to manage local traffic rather than as a full-fledged freeway, which typically requires higher standards for speed and capacity. The decision to upgrade it to a freeway after its completion reflects changing traffic demands and the need for improved connectivity as urban development increased in the surrounding areas. Upgrading to a freeway allows for better traffic flow and safety, accommodating the growing population and transportation needs of the region.