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
Finchley Road tube station west London, caused by the limited capacity of its tracks between Finchley Road and Baker Street stations. To alleviate this congestion new sections of deep tube tunnels were bored between Finchley Road and Baker Street to carry some of the traffic from the Stanmore branch and stations south of Wembley Park. These new tunnels opened on 20 November 1939 and from that date Finchley Road station was also served by Bakerloo line trains running from Baker Street using the new tunnels. The Bakerloo line services were subsequently transferred to the Jubilee line when that line commenced operation on 1 May