 World War II and the war effort in Montreal resurrected trams crowding.In 1944, the MTC proposed a two-line network, one line running underneath Saint Catherine Street, the other under Saint Denis and Notre-Dame and Saint Jacques Streets.In 1953 the newly formed public Montreal Transportation Commission replaced streetcars by buses and proposed a single subway line reusing the 1944 plans and extending it all the way to Boulevard Crémazie, right by the D'Youville maintenance shops.