stopping at) Southern Cross to and from Flinders Street. History Origins The Melbourne and Murray River Railway had been built out as far as Sunbury by February 1859. 1921–2002: The St Albans line Electrification of the line to St Albans was done in October 1921, although electrification occurred to North Melbourne in May 1919 as part of the Essendon electrification and to Footscray in August 1920 as part of the Williamstown electrification. North Melbourne to South Kensington was quadruplicated in 1924, and South Kensington to Footscray in November 1976. Automatic block signalling was provided between South Kensington and Footscray (and Yarraville on the Williamstown line) in August 1927, from Footscray to West Footscray in October 1927, North Melbourne to South Kensington in June 1928, Sunshine to Albion in July 1929, West Footscray to Sunshine in October 1929, and Albion to St Albans in February 1930, thus resulting in the entire electrified line being provided with this signalling. 2002–2012: The Sydenham line Electrification and automatic block signalling were extended to Sydenham, opening on 27 January 2002: as such the St Albans line was renamed the Sydenham line. A new station was built in northern St Albans, called Keilor Plains, as part of the electrification project as well as a newly revamped station at Sydenham, Watergardens. In early 2012, the Sydenham line was found to be one of Melbourne's five worst lines for overcrowding. 2012 onwards: The Sunbury line On Sunday, 18 November 2012 the electrification of the line to Sunbury became operational; as a result, the Sydenham line was renamed the Sunbury line. Metro's electric train service now continues on from Watergardens station, first to Diggers Rest and then to its new end terminus at Sunbury station, though many services continue to terminate at Watergardens. New passenger services were added on the same date across the whole line and weekly rail services for Sunbury in particular were boosted from 298 to 489. The $270 million electrification project was first proposed in the 1969 Victorian transport plan, but was opposed by some Sunbury and St Albans residents over concerns of less comfortable travel and added congestion at level crossings on the route as a result of increased services. Metro Tunnel In 2015, work commenced on the Metro Tunnel, a rail tunnel through the Melbourne CBD between the Sunbury line at South Kensington and the Dandenong corridor at South Yarra. On completion, the