Calgary Trail and Gateway Boulevard are a pair of major arterial roadways in Edmonton, Alberta. Gateway Boulevard carries northbound traffic while Calgary Trail carries southbound traffic. From south of 31 Avenue, they form a two-way freeway separated by a median; for this portion, the roadway maintains the separate names for northbound and southbound traffic. Near 31 Avenue, Calgary Trail and Gateway Boulevard separate and become parallel one-way arterial roadways to Saskatchewan Drive, at the edge of the North Saskatchewan River valley. Designated as part of Highway 2 south of Whitemud Drive, it is Edmonton's main southern entrance and is both a major commuter route, connecting to the Edmonton International Airport and Leduc, as well as a regional connection to Red Deer and Calgary.