Bakerloo line 30 tonnes, and the trains would be 17% more energy-efficient with air-conditioning included, or 30% more energy-efficient without it. The intention is that these new trains would eventually operate on the Bakerloo, Central, Piccadilly and Waterloo & City lines. Off-peak services on Bakerloo line are: This forms a 20tph service (or a train every 3 minutes) between Queen's Park and Elephant & Castle. "Note: For the former Stanmore branch of the Bakerloo line, see the Jubilee line article." Between 1917 and 1982, Bakerloo line trains continued along the DC line past Harrow & Wealdstone to Watford Junction. These stations continue
Kilburn tube station a bottleneck between Finchley Road and Baker Street, the Bakerloo line was to extend to Finchley Road and Stanmore to relieve congestion on the Metropolitan line. The extension would also take over the intermediate stations, including Kiburn. Construction began in 1936 and Kilburn became part of the Stanmore branch of the Bakerloo line on 20 November 1939, at which time the station was extensively rebuilt. Metropolitan line services through the station ceased on 7 December 1940, where services were fully transferred to the Bakerloo line. The station was renamed to its current name on 25 September 1950. During World War