- Sydney underground railways
Sydney's underground railways do not form a true metro, because they are extensions of suburban main line services and are not a completely segregated system. However, the underground sections, especially the
City Circle , show many of the characteristics of a metro, such as very frequent services. In this way Sydney's railways can be considered a hybrid system. The railways are run byCityRail , an agency of the government ofNew South Wales .Because the original underground lines were built in conjunction with the construction of the
Sydney Harbour Bridge , a decision was made to have the lines in shallow tunnels so as to minimise the height difference between the underground rails and their extension across the bridge.Underground lines
Sydney has three underground lines; a fourth is under construction.
*The oldest is the main city loop, the
City Circle , which runs between Central, Town Hall, Wynyard, Circular Quay, St. James station and Museum stations. Central and Circular Quay are above-ground stations (Circular Quay is elevated, directly underneath the Cahill Expressway), while the remainder are below ground. The line to St. James station and Museum was opened in1926 , but Circular Quay was a "missing link" until1956 . The "western limb" of the City Circle through Town Hall and Wynyard toSydney Harbour Bridge opened in1932 .*The second, the Eastern Suburbs line, opened in
1979 . It runs between Redfern, Central, Town Hall, Martin Place, Kings Cross, Edgecliff, Woollahra (Unused Platforms) and Bondi Junction stations. All these are underground, but there are three above-ground sections, two on viaduct and one in cutting. Most of the platforms at Redfern and Central stations are above ground, including the platforms for the City Circle, but the Eastern Suburbs line is underground. There were plans to extend the Eastern Suburbs line from Bondi Junction toBondi Beach , but the plans have since fallen through. Originally the line was to extend to Kingsford but was finshed at Bondi Junction for political reasons.*The third underground line is the Airport Line, which opened in
2000 , prior to the Sydney Olympics. This serves Central, Green Square, Mascot, Domestic (underneath the Domestic terminal), International (underneath International terminal at Sydney Airport), and Wolli Creek. After Wolli Creek it joins the above-ground East Hills line at Turrella.*The Epping to Chatswood rail link is under construction. It will link Chatswood to Epping, with new underground platforms at Epping and new underground stations at Macquarie University, Macquarie Park and North Ryde. The line was intended to continue from Epping to Parramatta, incorporating the existing Carlingford line, but this section has been postponed indefinitely, though a stub tunnel has been constructed at the northern end of Epping station.
* A new underground line to extend from Epping to Castle Hill, and possibly later to the new development underway between St. James and
Rouse Hill .There are also plans for:
* a subway to travel from Central to St Leonards under the city and the harbour. SeeMetroPitt .
* an east-west metro railway line that would start in St. James, continue through to the CBD and onwards to Maroubra. Its tentative name is the "Anzac Line" [ [http://www.smh.com.au/articles/2007/09/13/1189276899575.html New east-west line may cut congestion - National - smh.com.au ] ]Disused tunnels
Sydney has several disused tunnels. The best known of these are those leading out of St. James station ["The St James Railways Tunnels - Some Historical Notes" Harper, Graham Australian Railway Historical Society Bulletin, August, 1989 pp171-179] . There are also two instances of disused tunnels and platforms on the Eastern Suburbs line at Redfern and Central (see below). These stations have these disused platforms adjacent (but walled off from) the platforms currently in use. There are also stub tunnels at North Sydney railway station for a never constructed Manly to Mona Vale line. [Besser, Linton, " [http://www.smh.com.au/news/national/ghost-trains-the-forgotten-rail-network/2007/07/20/1184560040257.html "Ghost trains: the rail network that never was"] ",
Sydney Morning Herald ,21 July ,2007 . AccessedJuly 21 ,2007 .] [ [http://www.railpage.org.au/ausrail/98nov/msg00490.html] ] .From the top of the northern stair to platform 10 at Redfern Station it is possible to view the unfinished structure for the low-level "up" (toward Central) Southern Suburbs platform. The associated never-used tunnels are quite complex. Immediately to your left is the (surface level) stub tunnel for the "down" Southern Suburbs track. This short tunnel exits on the northern side of Lawson Street road bridge. As a matter of interest, there are at least nine railway tunnels under the suburb of Redfern: some in use, some never used.
The never-used platforms at Central, numbered 26 and 27, lie above the Eastern Suburbs Railway platforms and have never been used for trains. [Besser, Linton, " [http://www.smh.com.au/news/national/on-the-rails-to-nowhere/2007/07/20/1184560040323.html?page=fullpage#contentSwap1 "On the rails to nowhere"] ",
21 July ,2007 . Accessed21 July ,2007 .] Like St. James station, these stations have stub tunnels, although they are much shorter.There are three tunnels formerly part of the Metropolitan Goods Lines. One runs underneath Railway Square, between the Central station railway yards and the
Powerhouse Museum , the others underneath Pyrmont and Glebe. The first tunnel is now only used to service the Powerhouse Museum. The former railway from thePowerhouse Museum toLilyfield , including Pyrmont and Glebe tunnels, has been converted to form part of theMetro Light Rail line from Central station.Also of interest is a tunnel connecting the Eveleigh rail yards, on the southern side of the main line, to the northern side of the main line, running beneath Redfern station. This tunnel remains in use for the transfer of empty trains from Central (terminal) station to the service centre.
References
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