in the morning, regular bus and streetcar service mostly takes over from the corresponding blue night routes around 5:30a.m, or 8:00a.m. on sundays. the first trains on the subway then start from various positions along the routes, allowing all stations to open more or less simultaneously just before 6:00a.m., or 8:00a.m. on sundays. the blue night routes that parallel the subway lines keep running until that time, and their last buses terminate service at a subway station to facilitate transfers to the trains.