LONDON UNDERGROUND tube map plan. Victoria Line open to Victoria. GARBUTT 1969London Transport Diagram of lines 1969 [768 1881Z 1,000,000] The map shows the Northern Line City section from Old Street to Drayton Park via Essex Road (closed 1975); the Central Line continuation between Epping and Ongar (closed in 1994); The Piccadilly Line spur to Aldwych (closed 1994); The line between Baker Street and Stanmore is shown as a branch of the Bakerloo line, as it was until it became part of the Jubilee line upon its opening in 1979;