One major push has been an attempt to have as many services as possible serve the same stations, routes and terminals at all times, with the major exception for most services being the early morning hours of approximately midnight to 5 a.m. For instance, the "B" and "C" swapped northern terminals in 1998 so the "C" could serve the entire local portion of the IND Eighth Avenue Line at all times except nights; previously, the "A" had made two local stops north of 145th Street on weekends, while being express on the whole line south of 145th Street, because the "B" did not operate in Manhattan on weekends. In another case, the MTA took advantage of unavoidable service changes forced by the partial Manhattan Bridge closures to swap the Brooklyn segments of the "B" and "D" services, with the "B" becoming the BMT Brighton Line express service and the "D" becoming the BMT West End Line local (previously the B had been the West End Local and the D the Brighton Local). This enabled the "D", a full-time service, to operate continuously on the same route and terminals from Norwood–205th Street in the Bronx to Coney Island–Stillwell Avenue in Brooklyn, while the part-time "B" became the part-time "Brighton Express" service, formerly served by the express "<Q>" (notated with a diamond).