activity later transferred to Clapham Junction. Reinstatement of passenger services Since the 1940s the line has often been used for excursion and other special through trains across London to the South Coast. Between April 1963 and June 1965 the section between Willesden Jn and Kensington Olympia was used for trains diverted from Euston during the rebuilding of Euston station section. Kensington Olympia station was refurbished accordingly. During 1967 passenger services were diverted from Paddington between Old Oak Common and Kensington Olympia during engineering works at Paddington station. In the late 1970s, the Greater London Council began to revitalise the North London Line, incorporating it onto the Tube Map in 1977 as a white line with black borders marked "British Rail" and electrifying the route from Dalston to Woolwich in 1985. The limited Clapham Junction - Kensington Olympia service appeared in the public timetables, but full passenger services on the West London line were not re-introduced until 1994 by Network SouthEast service. In 1997, as part of the privatisation of British Rail, operation of both the WLL and NLL was brought under the North London Railway franchise, and taken over by National Express, trading as Silverlink. For a decade, the West London line was operated with the green-and-purple liveried Silverlink Metro trains. Channel Tunnel infrastructure work in 1993 electrified the line at 750 V DC third rail from the South to the North Pole depot. The line is electrified at 25 kV AC overhead wires from Westway (near the overbridge carrying the Hammersmith and City Line) to Willesden and the North. Until the High Speed 1 railway line from opened in November 2007, Eurostar trains from used the West London line to access their North Pole depot. The line was also proposed to be used by Regional Eurostar trains to connect to the West Coast Main Line, and to the North London and East Coast Main Lines, before the idea was cancelled. Platforms were reinstated at West Brompton in 1999. In 2007, Transport for London took over the North London Railway franchise as the London Overground concession, introducing new rolling stock and rebranding the West London line trains and stations in orange livery. The line appears today on the Tube Map as an orange stripe. New stations opened at in 2008 and in 2009, bringing main line rail services to a large catchment area in West London. Regional and InterCity services