| Railways in Sydney | |
|---|---|
| Overview | |
| Owner | Transport Asset Manager of New South Wales Transport for NSW |
| Locale | Sydney, New South Wales |
| Transit type | Goods |
| Operation | |
| Began operation | 1855 |
| Technical | |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in)standard gauge |
Sydney, the largest city inAustralia, has an extensive network of passenger and goods railways. The first railway line in Sydney opened in 1855, becoming part of theMain Suburban railway line and laying the foundation for future expansion.
An extensivesuburban railway network is operated bySydney Trains. Ametro system began operation in 2019. Sydney'slight rail system opened in 1996; it has reutilised former heavy rail corridors. A dedicatedgoods network also exists.
Central station is the main interchange for Sydney Trains suburban services, also serving intercity andNSW TrainLink regional trains, Sydney Metro and the light rail network.Journey Beyond's transcontinentalIndian Pacific toPerth also departs from Central.[1]
Sydney's suburban rail network is thebusiest in Australia, with over 359 million journeys made in the 2017–18 financial year.[2]

Suburban rail services in Sydney have been operated since 2013 bySydney Trains. Over 1 million weekday passenger journeys are made, with 46,000 timetabled stops per weekday over 1,800 km (1,100 mi) of track and through 297 stations (including intercity lines).[3] Most trains do not operate between midnight and 4.30am, withNightRide buses substituting for suburban services during this time.[4] Suburban services operate along the portions of the main lines from Sydney to the north, west, south and south-west, and also along several dedicated suburban lines. All of these lines are electrified at overhead 1500 V DC, electrification having started in 1926.[5][6]: 79f Some of the suburban stations are also served by the intercity and regional trains operated by NSW TrainLink, while some stations in thecity centre and (imminently)Western Sydney provide interchanges with light rail.
Most suburban services operate through central Sydney via the undergroundCity Circle (a two-way loop extending under the CBD from Central station), theEastern Suburbs line, or over theHarbour Bridge. TheMetro North West & Bankstown Line travels below the harbour and through the city centre.
Timetables are published for all lines, and most lines run on minimum frequencies of every 15 minutes from early morning to midnight, 7 days a week. Frequencies are higher during peak periods and over shared routes.[7]
All suburban passenger trains in Sydney areelectric multiple units.
Upon electrification in the 1920s Sydney operated single-deck multiple units, but these were progressively withdrawn from the 1960s until their demise in 1993. Single-deck automatic trains are utilised by the Sydney Metro, which opened in May 2019.
Double-deck trailer carriages were delivered to the NSW Government Railways in the 1960s, and incorporated into sets with single-deck power cars. When coupled with the double decker trailer carriages, they formed the world's first fully double decker electric multiple unit trains.[8]
Suburban trains are maintained at depots atHornsby in the northern suburbs,Mortdale in the southern suburbs, andFlemington in the western suburbs. A depot atPunchbowl in the southwest closed in 1994 and has since been demolished. These four depots were all built and opened with the opening of electrified services in the 1920s.
Heavy maintenance of passenger cars was carried out at theElectric Carriage Workshops,Chullora andSuburban Car Workshops,Redfern. Heavy maintenance is now contracted out to Maintrain, aUGL Rail subsidiary, with workshops atClyde.[9][10]

Freight services operate over most of the suburban railway lines in Sydney, however due to the high frequency of passenger services and the lack of freight only tracks, there is a curfew on freight movements during peak hours.[11]
The major interstate freight routes are theMain Southern andMain North lines, with theIllawarra andMain Western lines serving lineside industries and as alternate interstate routes. In the inner city area theMetropolitan Goods lines connects major freight terminals to the main passenger lines and theSouthern Sydney Freight Line which runs parallel to the Main South line from the western end of the Metropolitan Goods lines to a point beyond the end of suburban services.[12] TheNorthern Sydney Freight Corridor project along the Main Northern line between Sydney and Newcastle aimed at increasing the number of freight trains operating along the route, by separating passenger and freight traffic.
The main traffic iscontainerised freight. The main intermodal terminal are at Sydney Freight Terminal Chullora.Leightonfield,Yennora andMinto.[13] Interstate trains to Sydney terminals are up to 1,500 metres (4,900 ft) long, while short-haul container trains from the terminals to thePort Botany seaport are around 600 metres (2,000 ft) long.[11] Coal services toPort Kembla are another major traffic. Freight operators includeCrawfords Freightlines,Pacific National,Qube Holdings andSCT Logistics.[14]





The first railway in Sydney was opened in 1855 between Sydney andGranville, now a suburb of Sydney but then a major agricultural centre. The railway formed the basis of theNew South Wales Government Railways. Passenger and freight services were operated from the beginning.[15]
In 1886, the railway opened fromStrathfield toHornsby.[16] TheNorth Shore line opened in 1890 toSt Leonards and then in 1893 toa harbour-side station atMilsons Point.[17] More lines were being built at this time, and the suburban network expanded dramatically.[18]
The railway system as it exists today is really the result of the vision and foresight ofJohn Bradfield, one of Australia's most respected and famous civil engineers. He was involved in the design and construction ofSydney underground railways in the 1920s and 1930s, but he is more famous for the associated design and construction of theSydney Harbour Bridge.[19] Bradfield's vision for metro-style subways in Sydney was inspired by the metrosLondon andNew York City.[20]

New South Wales uses an overhead electrification system at 1,500voltsdirect current.[5] Whilst inferior to and more expensive than modern single phase alternating current equipment, it was in vogue during the 1920s, having been used in Melbourne since 1919 and is generally sufficient for the operation of electric multiple unit trains. However, the introduction of powerful electric locomotives in the 1950s, followed by theMillennium train in 2002, revealed drawbacks in this antiquated system of electrification. As the voltage is relatively low, high currents are required to supply a given amount of power, which necessitates the use of very heavy duty cabling and substation equipment. Until the retirement of electric locomotives from freight service in the 1990s, it was often necessary to observe a "power margin" to ensure that substations were not overloaded. This situation was similar to that which applied tothe Milwaukee Road's 3,000 VDC electrification. Plans to electrify the Hunter Valley at 25 kV alternating current were abandoned in the 1990s.
Electrification came to Sydney's suburbs on 9 December 1926 with the first suburban electric service running between Central station andOatley on theIllawarra line.[6]: 79f In the same year, the first underground railway was constructed north from Central station toSt James in Sydney's central business district. Electric trains that had previously terminated at Central station continued north, diving underground at theGoulburn Street tunnel portal, stopping atMuseum station and then terminating at St James.[21] Other lines were soon electrified. Also, in conjunction with the construction of the Sydney Harbour Bridge which opened in 1932, an additional four-track underground line was constructed from Central station toTown Hall andWynyard. Two of the tracks continued over the Harbour Bridge connecting to theNorth Shore line.

It was only in 1956 that the two tracks terminating at Wynyard were linked to the line terminating at St James via the Circular Quay viaduct. This new arrangement, dubbed theCity Circle, allowed services to make a continuous run through the city and return to the suburbs without having to terminate.
Electrification ofheavy rail lines proceeded as follows:
New electrified suburban and metro lines were built:
The 2010s saw substantialinvestment in Sydney's railways. New suburban, metro and light rail lines have been constructed in the 2010s and 2020s, and a new focus emerged onurban rail in Australia.[23][24] TheCarlingford line and theEpping to Chatswood Rail Link, former parts of the suburban network, were subsumed by theParramatta Light Rail andMetro North West & Bankstown Line respectively.[25][26] Conversely, theSydney Monorail was closed in 2013.[27] In 2020, transport ministerAndrew Constance stated that Sydney had become a “train city, it wouldn’t matter if it was light rail, metro or the inter-city trains.”[28]
The goods system has also been expanded. TheSouthern Sydney Freight Line, an extension to the dedicated freight network from the end of the Metropolitan Goods line atSefton toMacarthur, opened in 2013.[29][30] TheNorthern Sydney Freight Corridor programme saw the loop betweenNorth Strathfield andRhodes duplicated with an underpass, opened in 2015, whilst a third track between Epping and Thornleigh was opened in 2016.[31][32]

The rail network in the metropolitan area of Sydney is owned, maintained and operated byTransport Asset Holding Entity, a NSW State Government owned corporation. Third party access to their tracks by other freight operators is allowed under an open-access arrangement. Track outside the Sydney metropolitan area is operated and maintained by theAustralian Rail Track Corporation. Suburban passenger trains within Sydney and intercity trains are operated bySydney Trains, while regional trains that run through Sydney to and from farther destinations are operated byNSW TrainLink.
RailCorp was formed on 1 January 2004 by the merger of theState Rail Authority (SRA) and the metropolitan functions of theRail Infrastructure Corporation (RIC). Until 1972, railways in NSW were operated by theDepartment of Railways New South Wales until this department was replaced by thePublic Transport Commission (PTC), which was also responsible for bus and ferry services. In 1980 the PTC was broken up into the SRA, responsible for rail services, and theUrban Transit Authority (UTA), responsible for bus and ferry services. The UTA later became theState Transit Authority in 1989.
In 2001, the SRA had its 'above track' operations separated from its track ownership and maintenance operations. The track maintenance operations and track ownership were moved to the new RIC. However this separation into a horizontally operated rail system was criticised for the passing of blame for rail delays and accidents between authorities, and in 2004 railways in Sydney became a vertically operated system again with the creation of RailCorp, a fusion of the SRA and the urban sections of the RIC.
In July 2013, RailCorp was reduced to become the owner of the infrastructure and rolling stock, with the service provision that it operated under theCityRail andCountryLink brands transferred toSydney Trains andNSW TrainLink.[33][34][35][36]
With limited exceptions, all outside of Sydney,trains in New South Wales usestandard gauge, with adistance of1,435 mm (4 ft 8+1⁄2 in) between the rails.[37]
The railways in Australia generally useBritish-derived terminology. 'Up' and 'down' mean towards and away from Central station respectively. 'TfNSW' refers to Transport for NSW, the public transportation body.[38]
Four main 'trunk' lines radiate from Sydney to the north, west, southwest and south:
Other passenger lines branch from or interconnect with the four main lines:

Lines with light rail specifications:
Several railway lines carry goods only:
There are several closed lines in Sydney:
Some former heavy rail lines, as mentionedabove, have been converted to light rail.
The following lines are under construction:



Sydney has five underground lines. Three of these sections of railway are extensions of suburban main line commuter services, while two are part of a completely segregatedmetro system. The underground sections, especially theCity Circle, typically have frequent services.Sydney Metro forms the largest part of Sydney's underground railways and the first subway system in an Australian city.[39] Sydney Metro is atypical compared to classicmetro systems such as theLondon Underground or theParis Metro in that its stations are widely spaced, up to 6km apart, and it extends out of the innerurban area into less dense,suburban areas.
The oldest underground line is the main city loop, theCity Circle, which runs betweenCentral,Town Hall,Wynyard,Circular Quay,St James andMuseum stations. Central and Circular Quay are above-ground stations (Circular Quay is elevated, directly underneath the Cahill Expressway), while the remainder are below ground, meaning the underground segment of the City Circle consists of two branches, meeting at the approach to Central before surfacing. The line to St James station and Museum was opened in 1926, while the "western branch" of the City Circle through Town Hall and Wynyard opened in 1932, in conjunction with the opening of theSydney Harbour Bridge. Circular Quay remained a "missing link" until 1956, when it connected the ends of the two underground branches via an elevated track.
TheNorth Shore railway line runs underground adjacent to the City Circle between Central and Wynyard, then runs over the Sydney Harbour Bridge.
TheEastern Suburbs line opened in 1979. It runs betweenRedfern, Central, Town Hall,Martin Place,Kings Cross,Edgecliff, Woollahra (Unused Platforms) andBondi Junction stations. All these are underground, but there are three above-ground sections, two on viaduct and one in cutting, with four separate tunnel sections, the main section extending from before Redfern to after Martin Place, while the other three are centred on each of the threeEastern Suburbs stations. Most of theplatforms at Redfern and Central stations are above ground, including the platforms for the City Circle, but the Eastern Suburbs line is underground. At the time of its construction, the line had been intended to finish atKingsford but it was curtailed at Bondi Junction for political and financial reasons. In the late 1990s, there were plans to extend the line toBondi Beach, but these have since fallen through.
TheAirport line opened in 2000, prior to theSydney Olympics. This serves Central, Green Square,Mascot,Domestic Airport (underneath the Domestic terminals),International Airport (underneath International terminal at Sydney Airport), andWolli Creek. After Wolli Creek it joins the above-ground East Hills line atTurrella.
The fourth underground line is a part ofSydney Metro Northwest, which was built in two stages. The first stage was originally constructed as part of the suburban rail system as theEpping to Chatswood rail link, opened in 2009. It links the centre above ground platforms atChatswood to new underground platforms atEpping, via new underground stations atMacquarie University,Macquarie Park andNorth Ryde. The line as-built surfaced after Epping to connect to theNorthern line, and was intended to continue from Epping toParramatta, incorporating the existing Carlingford line, but this section was postponed during the railway's construction because of financial reasons. Stub tunnels were constructed at the northern end of Epping station in the event that work on the remainder of the line ever resumed. These stubs were instead used to connect to new tunnels for the Northwest Metro, which opened in 2019, ending the possibility of extending the railway to Parramatta as a commuter rail line. The Epping to Chatswood Rail Link was converted for operation as an automated rapid transit system, with the links to the suburban system at Chatswood and Epping removed. The new tunnels are made up of two segments, extending from Epping to the above groundCherrybrook station, and from Cherrybrook to the above groundBella Vista station, via underground stations atCastle Hill,Hills Showground, andNorwest. The line continues past Bella Vista above ground and by viaduct.
The fifth underground line is a part ofSydney Metro City & Southwest, with the tunnelled section from Chatswood toSydenham opening in 2024. These tunnels, which pass under Sydney Harbour, connect the above ground Metro platforms at Chatswood and Sydenham via underground stations/platforms atCrows Nest,Victoria Cross,Barangaroo, Martin Place,Gadigal, Central, andWaterloo.
Two underground lines are under construction as part of Sydney Metro as of 2024.
Sydney has several disused tunnels. The best known of these are those leading out ofSt James station. There are also several disused tunnels and platforms on the Eastern Suburbs line, which like St James station provided for the possibility of four tunnels even though only two are in use. There is a stub tunnel at North Sydney railway station, north of platform 2, for a never constructed Manly to Mona Vale line.[40][41]
From the top of the northern stairs to platform 10 at Redfern station it is possible to view the unfinished structure for the low-level "up" (toward Central) Southern Suburbs platforms. The associated never-used tunnels are quite complex. Immediately to the 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. There are at least nine railway tunnels under the suburb of Redfern: some in use, some never used.
What was originally intended to be Platforms 26 and 27 at Central was constructed as part of the Eastern Suburbs Railway. Lying above the active Eastern Suburbs platforms, they have never been used for trains,[42] and they now house communications and power rooms for the deeper Sydney Metro platforms, which took their numbering as platforms 26 and 27. Like St James station, the abandoned platforms at Redfern and Central have stub tunnels, although they are much shorter.
There are several tunnels on the old Rozelle–Darling Harbour Goods Line, most of which are now used by the Inner West Light Rail.One runs underneathRailway Square, near the Central station railway yards. For a time, this section of the line was used to service thePowerhouse Museum.[43] The corridor adjacent to the tunnel is nowa pedestrian pathway, the tunnel itself is disused.A pair of tunnels run underneathPyrmont andGlebe and are now part of the light rail line.[44] The third tunnel was created in 2000 when an extension to theCity West Link Road throughLeichhardt was built on top of a cutting. This is also now used by the light rail.