During the late 1920s and into the 1930s, at a time of huge expansion of the London Underground system, a series of "letters" to varous grades of administrative staff explaining issues of policy were issued. Starting in 1927, these ‘personal’ letters from the ‘Operating Manager’ blossomed into quite sizeable publications, complete with extensive maps, drawings and plans – especially of the massive schemes connected with the London Passenger Transport Board’s "New Works Programme, 1935 – 40. This, the largest ever single investment programme initiated by the newly unified "London Transport" included the Central line extensions both east and west, the Northern line extensions, the Bakerloo’s Stanmore branch works as well as the replacement of the capital’s tramway system by trolleybuses. Most of the schemes were seriously interupted by the outbreak of war in 1939 and whilst some were re-started in post-war years others, most notably the Northern line extensions and the tram/trolleybus switch-over were mostly abandoned.
Letter No. 23, dated 26 April 1938, is a detailed description of the North London Electrification Scheme that involved both new works in tune to connect the existing Highgate and Northern City branches to the existing mainline Alexandra Palace, High Barnet and Edgware branches of the LNER along with electrification of these steam operated branches. The works also saw an intended extension of the existing Edgware branch north to a new terminus at Bushey Heath along with a new depot at Aldenham. Although much work started, including the Bushey Heath extension and works to the Alexandra Palace via Finsbury Park branches, these were formally abandoned in the 1940s – partially due to parlous state of the UK’s post-war economy as well as the new ‘Green Belt’ planning legislation that nailed any major new suburban developments north of Edgware. The link at low level of the tube north of Archway at Highgate and out to East Finchley did come into use and the whole branch to High Barnet was converted along with a stub of the Edgware branch to Mill Hill East. Although East Finchley station was reconstructed along "LT" lines no other major reconstructions took place and indeed the original GNR stations still mostly serve the Tube to this day. The depot at Aldenham was built and after wartime use as a factory it became, instead, London’s second major bus overhaul works.
This diagram shows the proposed train service frequencies over the existing branches and serving the new Northern line extensions.
Posted by mikeyashworth on 2024-04-01 13:59:57
Tagged: , April 1938 , LPTB Letter to Outdoor Administrative Staff number 23 , proposed tube station , World War 2 , London , London Transport New Works Programme 1935 – 1940 , Northern line extensions , reconstruction , closed railways , London & North Eastern Railway , 1938 , London Passenger Transport Board , North London Electrification Scheme , Mike Ashworth Collection , Northern line , proposed Northern line extension train services , Finsbury Park , Alexandra Palace , Highgate , Archway , East Finchley , Finchley Central , High Barnet , Edgware , Bushey Heath , Middlesex , Northern City line branch , Northern City branch , Northern line Charing Cross branch
Leave a Reply