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
Charing Cross tube station opened. The constituent stations also underwent a number of name changes during their history. The first part of the complex, the Bakerloo line platforms, was opened as "Trafalgar Square" by the Baker Street & Waterloo Railway (BS&WR) on 10 March 1906. The Northern line platforms were opened a year later, as "Charing Cross", by the Charing Cross, Euston & Hampstead Railway (CCE&HR, now the Charing Cross branch of the Northern line) on 22 June 1907. At its opening this station was the southern terminus of the CCE&HR which ran to two northern termini at and Highgate (now ) tube stations.