14th Street–Union Square is a New York City Subway station complex shared by the IRT Lexington Avenue Line, the BMT Broadway Line, and the BMT Canarsie Line. It is located at the intersection of Fourth Avenue and 14th Street, underneath Union Square in Manhattan, and is served by: * 4, 6, L, N, and Q trains at all times * 5 and R trains at all times except late nights * W trains weekdays There are three originally separate stations here, which were combined sometime after unification of the subways in 1940. They now share a mezzanine, common entrance points, and unified signage.