Central line (London Underground) Hammersmith (Grove Road) railway station. Authorisation was granted in 1920, but the connection was never built, and the L&SWR tracks were used by the Piccadilly line when it was extended west of Hammersmith in 1932. On 1 July 1933, the Central London Railway and other transport companies in the London area were amalgamated to form the London Passenger Transport Board, generally known as London Transport. The railway was known as the "Central London Line", becoming the "Central line" in 1937. The 1935–40 New Works Programme included a major expansion of the line. To the west new tracks were to be
History of the London Underground appeared for the first time. On 1 July 1933, the London Passenger Transport Board (LPTB), was created as a public corporation and the Metropolitan, the UERL underground railways, tramway companies and bus operators were merged into one organisation. On the former Metropolitan Railway the Brill Branch closed in 1935, followed by the line from to Verney Junction in 1936. It was proposed to electrify to Amersham with additional tracks from Harrow to Rickmansworth and to extend the Bakerloo line to Stanmore to relieve the bottleneck on the Metropolitan from Baker Street to Finchley. Before any work was started on the