 Jasper Avenue continued to gain strength as a commercial centre through the 1930s and 40s, supporting streetcars as well as motorized vehicles, with the 101 Street intersection receiving Edmonton’s first traffic light in 1933.The years following World War II saw unprecedented growth, with the oil discovery near Leduc in 1948 and the strategic positioning of Edmonton as a base for subsequent major oil construction projects.Growth continued in the 1960s with intensification of the downtown core, and in the 1970s a number of historical buildings were demolished in order to accommodate large towers and future growth.