 A combination of difficult terrain and growing urbanization limits posted speeds on the Vancouver Island section to in urban areas, 80 km/h across the Malahat and through suburban areas, and a maximum of 90 km/h in rural areas.From Field, British Columbia, the highway continues east as Alberta Highway 1 to Lake Louise, Banff, Canmore and Calgary where it becomes known as 16 Avenue N, initially an expressway and later a busy street with many signalized intersections.The northwest and northeast segments of Stoney Trail (Highway 201) were completed in 2009, serving as an east-west freeway that bypasses the Calgary segment of highway 1.