London is the starting point for a number of motorway routes. The M25 is an orbital motorway which enables vehicles to avoid travelling through central London and is one of the busiest motorways in Europe.
In the 1920s, the London and North Eastern Railway (successor to the GNR) planned to electrify the line, but work was not carried out until the 1930s when it was done as part of the London Transport'sNorthern Heights plan in preparation for a transfer of the line to the Northern line. The start of the Second World War prevented the plans being completed and only the section of the line to Mill Hill East was electrified and reopened by London Transport in 1941. British Rail freight services to Edgware continued on the line until 1964 when it was closed west of Mill Hill East.
Charles Tyson Yerkes (25 June 1837 – 29 December 1905) was an American financier. He played a major part in developing mass-transit systems in Chicago and London. Yerkes was born in the Northern Liberties, a district of Philadelphia, the son of a banker. At 17 he became a clerk in a grain brokerage and at 22 set up his own firm and joined the Philadelphia stock exchange. By 1865 he had moved into banking and specialized in selling municipal, state, and government bonds. A large speculative trade with Philadelphia public money ended disastrously, and he was left insolvent and narrowly avoided being jailed. Having moved to Chicago in 1881, Yerkes became involved in public transportation when his consortium began taking over street railway companies. His aim was to achieve a monopoly of public transport in the city and he used bribery and blackmail in order to further his ambition. Following an unsuccessful attempt to bribe the city council and state legislature into granting him a 100-year franchise for the tramway system, Yerkes sold his transport stocks in 1899 and moved to New York.