Baker Street tube station new Jubilee line was proposed which would take a route via Baker Street, Bond Street, Trafalgar Square, Strand, Fleet Street, Ludgate Circus and Cannon Street, then proceeding into southeast London. This new line was to have been called the Fleet line. The Jubilee line added an extra northbound platform and replaced the Bakerloo line service to Stanmore from the station, opening on 1 May 1979. The initial route on the Hammersmith & City line was formed by the H&CR, running between Hammersmith and Moorgate. Services were eventually extended to Barking via the DR and shared with the existing MR tracks
Baker Street and Waterloo Railway from the junction of New Street (now Melcombe Street) and Dorset Square west of Baker Street to James Street (now Spur Road) on the south side of Waterloo station. From Baker Street, the route was to run eastwards beneath Marylebone Road, then curve to the south under Park Crescent and follow Portland Place, Langham Place and Regent Street to Piccadilly Circus. It was then to run under Haymarket, Trafalgar Square and Northumberland Avenue before passing under the River Thames to Waterloo station. A decision had not been made between the use of cable haulage or electric traction as the means