Jump to content

City Circle: Difference between revisions

From Wikipedia, the free encyclopedia
Browse history interactively
← Previous edit
Content deleted Content added
VisualWikitext
→External links: move categories to cat page
No edit summary
Tags: Mobile edit Mobile web edit Advanced mobile edit
 
(27 intermediate revisions by 21 users not shown)
Line 1: Line 1:
{{Short description|Railway line in Sydney, New South Wales}}
{{About||the current metro line in Copenhagen|City Circle Line|the tourist tram in Melbourne|City Circle tram}}
{{other uses|City Circle (disambiguation)}}
{{Use dmy dates|date=November 2012}}
{{Use dmy dates|date=November 2020}}
{{Use Australian English|date=January 2012}}
{{Use Australian English|date=January 2012}}
{{Infobox rail line
{{Infobox rail line
| box_width = 300px
| box_width = 300px
| name = City Circle
| name = City Circle
| other_name =
| other_name =
| native_name =
| native_name =
| native_name_lang =
| native_name_lang =
| image = Tangara T Car Set.jpg
| image = Town Hall railway station, Sydney, 2022.jpg
| image_width = 300px
| image_width = 300px
| image_alt =
| image_alt =
| caption = A [[Sydney Trains T set|Tangara]] at [[Circular Quay railway station|Circular Quay]], the halfway point of the city circle line.
| caption = [[Town Hall railway station, Sydney|Town Hall station]], a major interchange and one of the busiest stations on the City Circle
| type =
| type =
| system =
| system =
| status =
| status =
| locale =
| locale =
| start = [[Central railway station, Sydney|Central]]
| start = [[Central railway station, Sydney|Central]]
| end =
| end =
| stations = 6
| stations = 6
| routes = [[Airport, Inner West & South Line|T2 Inner West & Leppington Line]]<br />[[Bankstown Line|T3 Bankstown Line]]<br />[[Airport & South Line|T8 Airport & South Line]]
| routes = [[T2 Leppington & Inner West Line]]<br />[[T3 Liverpool & Inner West Line]]<br />[[T8 Airport & South Line]]
⚫
| ridership2 =
⚫
| open = {{Start date|1926|12|20|df=y}} (first segment)<br />{{Start date|1956|01|22|df=y}} (entire loop)
⚫
| close =
| owner = [[Transport Asset Holding Entity]]
⚫
| operator = [[Sydney Trains]]
⚫
| character =
⚫
| linelength_km = 6
⚫
| linelength_mi =
⚫
| tracklength_km =
⚫
| tracklength_mi =
⚫
| gauge = {{Track gauge|sg|allk=on}}
⚫
| minradius =
⚫
| racksystem =
⚫
| routenumber =
⚫
| speed_km/h =
⚫
| speed_mph =
⚫
| speed =
⚫
| elevation_m =
⚫
| elevation_ft =
⚫
| elevation =
⚫
| website =
| map = {{maplink|frame=yes|plain=yes|frame-align=center|type=line}}
⚫
}}
⚫
The '''City Circle''' is a mostly-underground railway line located in the [[Sydney central business district]] and [[Haymarket, New South Wales|Haymarket]], in [[New South Wales]], [[Australia]], that forms the core of Sydney's passenger rail network. The lines are owned by the [[Transport Asset Holding Entity]], a [[Government of New South Wales|State government]] agency, and operated under [[Transport for New South Wales|Transport for NSW]]'s [[Sydney Trains]] brand. Despite its name, the City Circle is of a horseshoe shape, with trains operating in a U-shaped pattern. The constituent stations of the Circle are (clockwise): [[Central railway station, Sydney|Central]], [[Town Hall railway station, Sydney|Town Hall]], [[Wynyard railway station, Sydney|Wynyard]], [[Circular Quay railway station|Circular Quay]], [[St James railway station, Sydney|St James]], [[Museum railway station|Museum]] and back to Central.


⚫
==History and description==
⚫
| ridership2 =
⚫
The original concept for the City Railway was part of a report dated 1915 submitted to the government by chief railway engineer, [[John Bradfield (engineer)|John Bradfield]], upon his return from overseas study,<ref>{{cite journal |title=50 Years – A Long Time |author=Wylie, R. F. |journal=[[Australian Railway History|Australian Railway Historical Society Bulletin]] |date=June 1971 |pages=140–143 }}</ref> with work commencing the following year. His concepts were largely based on the [[New York City Subway]], which he observed during his time in [[New York City]].<ref>{{cite news|title=Housing can deliver John Bradfield's vision|url=https://www.dailytelegraph.com.au/news/opinion/housing-can-deliver-john-bradfields-vision/news-story/d2e0e21080a63d9dac08a8d0f02912ec|work=[[The Daily Telegraph (Sydney)|The Daily Telegraph]]|date=4 November 2014|access-date=29 December 2017}}</ref><ref>{{cite web|title=A once-visionary rail plan for Sydney lost in time|work=[[The Daily Telegraph (Sydney)|The Daily Telegraph]]|date=29 October 2014|access-date=29 December 2017|url=https://www.dailytelegraph.com.au/news/national/a-oncevisionary-rail-plan-for-sydney-lost-in-time/news-story/35039fcbeeba6c10d2f2ab8ffe4c9219}}</ref>
⚫
| open = {{Start date|1926|12|20|df=y}} (first segment)<br />{{Start date|1956|01|22|df=y}} (entire loop)
⚫
[[File:Open cut underground railway now completed, Museum Station, Sydney, New South Wales, ca. 1925 (9781167304).jpg|left|thumb|Construction of [[Museum railway station|Museum station]] in 1925, using a [[cut and cover]] method]]
⚫
| close =
⚫
Built in stages, the first City Circle stations to open were the [[New South Wales State Heritage Register|heritage-listed]]<ref name=oeh>{{cite NSW SHR|4801092|Museum railway station}}</ref> Museum and St James, which both opened in 1926 as part of the initial electrification of Sydney railways. Next was the "western limb" through Town Hall and Wynyard, which opened in 1932 in conjunction with the opening of the [[Sydney Harbour Bridge]]. This section contains four tunnels. Two connected to the Harbour Bridge, while the two City Circle tunnels terminated at Wynyard. In 1956, the dead ends at St. James and Wynyard were joined and the "missing link", Circular Quay – was opened. Central and Circular Quay stations are above-ground (Circular Quay is elevated, directly underneath the [[Cahill Expressway]]), while the remainder are underground. Several unused railway tunnels also exist. The former tram tunnels at Wynyard, and other stub tunnels at St James are well known.
| owner = [[RailCorp]]
⚫
| operator = [[Sydney Trains]]
⚫
| character =
⚫
| linelength_km = 6
⚫
| linelength_mi =
⚫
| tracklength_km=
⚫
| tracklength_mi=


⚫
| gauge = {{Track gauge|sg|allk=on}}

⚫
| minradius =
⚫
| racksystem =
⚫
| routenumber =

⚫
| speed_km/h =
⚫
| speed_mph =
⚫
| speed =
⚫
| elevation_m =
⚫
| elevation_ft =
⚫
| elevation =
⚫
| website =
⚫
}}
⚫
{{Sydney Trains City Circle}}
{{multiple image
{{multiple image
| footer = The original railway network for the Sydney CBD planned by [[John Bradfield (engineer)|John Bradfield]], (left) and the network as it is today. The City Circle was built as planned and the [[Eastern Suburbs & Illawarra railway line|Eastern Suburbs railway]] was built to a different alignment, though the Northern Beaches and Southern Suburbs line was never built.
| footer = The original railway network for the Sydney CBD planned by [[John Bradfield (engineer)|John Bradfield]], (left) and the network as it is today. The City Circle was built as planned and the [[Eastern Suburbs & Illawarra railway line|Eastern Suburbs railway]] was built to a different alignment, though the Northern Beaches and Southern Suburbs line was never built.
| image1 = Bradfield Scheme Sydney CBD Railways alt.png
| image1 = Bradfield Scheme Sydney CBD Railways alt.png
| width1 = 229
| width1 = 229
| image2 = Sydney CBD Railways built.png
| image2 = Sydney CBD Railways built.png
| width2 = 200
| width2 = 200
| total_width = 250
}}
}}
⚫
The '''City Circle''' is a mostly-underground railway line located in the [[Sydney central business district]], in [[New South Wales]], [[Australia]], that forms the core of Sydney's passenger rail network. The lines are owned by [[RailCorp]], a [[Government of New South Wales|State government]] agency, and operated under [[Transport for New South Wales|Transport for NSW]]'s [[Sydney Trains]] brand. Despite its name, the City Circle is of a horseshoe shape, with trains operating in a U-shaped pattern. The constituent stations of the Circle are (clockwise): [[Central railway station, Sydney|Central]], [[Town Hall railway station, Sydney|Town Hall]], [[Wynyard railway station, Sydney|Wynyard]], [[Circular Quay railway station|Circular Quay]], [[St James railway station, Sydney|St James]], [[Museum railway station|Museum]] and back to Central.

⚫
==History and description==
⚫
The original concept for the City Railway was part of a report dated 1915 submitted to the government by chief railway engineer, [[John Bradfield (engineer)|John Bradfield]], upon his return from overseas study,<ref>{{cite journal |title=50 Years – A Long Time |author=Wylie, R. F. |journal=[[Australian Railway History|Australian Railway Historical Society Bulletin]] |date=June 1971 |pages=140–143 }}</ref> with work commencing the following year. His concepts were largely based on the [[New York City Subway]], which he observed during his time in [[New York City]].<ref>{{cite news|title=Housing can deliver John Bradfield's vision|url=https://www.dailytelegraph.com.au/news/opinion/housing-can-deliver-john-bradfields-vision/news-story/d2e0e21080a63d9dac08a8d0f02912ec|work=[[Daily Telegraph]]|date=4 November 2014|accessdate=29 December 2017}}</ref><ref>{{cite web|title=A once-visionary rail plan for Sydney lost in time|work=[[Daily Telegraph]]|date=29 October 2014|accessdate=29 December 2017|url=https://www.dailytelegraph.com.au/news/national/a-oncevisionary-rail-plan-for-sydney-lost-in-time/news-story/35039fcbeeba6c10d2f2ab8ffe4c9219}}</ref>

⚫
Built in stages, the first City Circle stations to open were the [[New South Wales State Heritage Register|heritage-listed]]<ref name=oeh>{{cite NSW SHR|4801092|Museum railway station}}</ref> Museum and St James, which both opened in 1926 as part of the initial electrification of Sydney railways. Next was the "western limb" through Town Hall and Wynyard, which opened in 1932 in conjunction with the opening of the [[Sydney Harbour Bridge]]. This section contains four tunnels. Two connected to the Harbour Bridge, while the two City Circle tunnels terminated at Wynyard. In 1956 the dead ends at St. James and Wynyard were joined and the "missing link", Circular Quay – was opened. Central and Circular Quay stations are above-ground (Circular Quay is elevated, directly underneath the [[Cahill Expressway]]), while the remainder are underground. Several unused railway tunnels also exist. The former tram tunnels at Wynyard, and other stub tunnels at St James are well known.


The City Circle is double track throughout, although it forms four tracks at Central as there are two ends of the same track. The outer track is known as the "City Outer" and is used by trains travelling clockwise around the City Circle. In the direction of travel it passes through Central platform 17, Town Hall platform 6, Wynyard platform 6, Circular Quay platform 2, St James platform 2, Museum platform 2. Trains can then either proceed to Central platform 22 or 23, depending on which line they are running on. Similarly, the inner track is known as the "City Inner" and is used by trains travelling anti-clockwise. It starts from Central platform 20 or 21, again depending on which line a train is coming from. It then passes through Museum platform 1, St James platform 1, Circular Quay platform 1, Wynyard platform 5, Town Hall platform 1 then Central platform 19.
The City Circle is double track throughout, although it forms four tracks at Central as there are two ends of the same track. The outer track is known as the "City Outer" and is used by trains travelling clockwise around the City Circle. In the direction of travel it passes through Central platform 17, Town Hall platform 6, Wynyard platform 6, Circular Quay platform 2, St James platform 2, Museum platform 2. Trains can then either proceed to Central platform 22 or 23, depending on which line they are running on. Similarly, the inner track is known as the "City Inner" and is used by trains travelling anti-clockwise. It starts from Central platform 20 or 21, again depending on which line a train is coming from. It then passes through Museum platform 1, St James platform 1, Circular Quay platform 1, Wynyard platform 5, Town Hall platform 1 then Central platform 19.


==Services and operations==
==Services and operations==
{{unreferenced|section|date=May 2020}}
⚫
The current service patterns generally consist of trains from the [[Bankstown Line|Bankstown]] & [[Inner West & Leppington Line|Inner West & Leppington]] lines operating via the City Outer. Trains from the [[Airport & South Line]] generally operate via the City Inner. Some Bankstown line trains also operate via the City Inner on weekdays, especially during the peaks. A set of [[flying junction]]s at Central enable this pattern to be varied.
⚫
{{Sydney Trains City Circle}}

⚫
The current service patterns generally consist of trains from the [[Inner West & Leppington Line]] running into the City Circle Outer, becoming [[Airport & South Line]] trains as they enter the circle. Conversely, trains from the [[Airport & South Line]] generally run into the City Circle Inner, becoming Inner West & Leppington Line trains. [[Liverpool & Inner West Line]] trains also operate via the City Circle Inner. A set of [[flying junction]]s at Central enable these patterns to be varied.


Prior to the integration of the [[Eastern Suburbs & Illawarra railway line|Eastern Suburbs line]] into the [[Eastern Suburbs & Illawarra railway line|Illawarra Line]] in 1980, Illawarra line trains also operated around the City Circle.
Prior to the integration of the [[Eastern Suburbs & Illawarra railway line|Eastern Suburbs line]] into the [[Eastern Suburbs & Illawarra railway line|Illawarra Line]] in 1980, Illawarra line trains also operated around the City Circle.


Trains on the [[Western railway line, Sydney|Western]] and [[Northern railway line, Sydney|Northern]] lines usually do not proceed around the City Circle but instead, proceed across the Harbour Bridge to the [[North Shore railway line|North Shore line]] and vice versa.
Trains on the [[Western railway line, Sydney|Western]] and [[Northern railway line, Sydney|Northern]] lines usually do not use the City Circle but instead, proceed across the Harbour Bridge to the [[North Shore railway line|North Shore line]] and vice versa.


=== Speed Control and Reduced Overlap ===
=== Speed control and reduced overlap ===
''For more information about signalling, see [[Australian railway signalling#Double light colour light|Australian railway signalling]]''<br>
''For more information about signalling, see [[Australian railway signalling#Double light colour light|Australian railway signalling]]''<br>
Up until the City Circle Resignalling of the 1990s, the western stations of the line were signalling such that a following train could enter the platform while the previous train was still departing. The signal granting access to the platform would show a restrictive aspect (probably calling-on - red over red over small amber - which indicates that the train can proceed but the block is not necessarily clear) and [[Train stop|train stops]] spread along the platform would control the speed of the following train. This allowed these stations to deal with 42 trains per hour in either direction provided sub 40 second dwell times. The 1990s resignalling changed the older eastern stations to follow a similar operation. At some point the system was changed again to provide additional safety. Signals on the City Circle can no longer display a calling-on aspect, but can display low-speed (red over red over small green - which means that the block is clear but to proceed slowly, not exceeding 25km/h). Consequently, trains can no longer enter the platform while a previous train is departing and the system cannot handle more than 20 trains per hour.
Up until the City Circle Resignalling of the 1990s, the western stations of the line were signalling such that a following train could enter the platform while the previous train was still departing. The signal granting access to the platform would show a restrictive aspect (probably calling-on - red over red over small amber - which indicates that the train can proceed but the block is not necessarily clear) and [[Train stop|train stops]] spread along the platform would control the speed of the following train. This allowed these stations to deal with 42 trains per hour in either direction provided sub 40 second dwell times. The 1990s resignalling changed the older eastern stations to follow a similar operation. At some point the system was changed again to provide additional safety. Signals on the City Circle can no longer display a calling-on aspect, but can display low-speed (red over red over small green - which means that the block is clear but to proceed slowly, not exceeding {{convert|25|km/h|mph|0}}). Consequently, trains can no longer enter the platform while a previous train is departing and the system cannot handle more than 20 trains per hour.
[[File:Sydney_Trains_Trip_Dropping_Example.gif|alt=An animated image showing the system in action|left|thumb|538x538px|Original 1932 operation of speed controlled trips on the City Circle.]]
[[File:Sydney_Trains_Trip_Dropping_Example.gif|alt=An animated image showing the system in action|center|thumb|450x450px|Original 1932 operation of speed controlled trips on the City Circle.]]
{{-}}
=== Stations ===
=== Stations ===
The line has six stations.
The line has six stations.
Line 89: Line 92:
|-
|-
|'''[[Central railway station, Sydney|Central]]'''
|'''[[Central railway station, Sydney|Central]]'''
|SBO
|CEN
|{{convert|0|km|mi|disp=table}}
|{{convert|0|km|mi|disp=table}}
|28 February 1855
|28 February 1855
|<ref>Bozier, Rolfe, ''[https://web.archive.org/web/20020613171622/http://www.triode.net.au/~rolfeb/nsw/codes.php3 "New South Wales Railways: NSW Station Codes"]''. Retrieved 19 June 2002.</ref><ref name="ESR1" /><ref name="IL1">Sourced from Forsyth, J.H. (ed.) (1988–93), ''Stations & Tracks''; Vol. 1: "Main Suburban & Branches – Illawarra & Branches". State Rail Authority of New South Wales: Sydney, pp. 42–44, 101–128, 206–208 ''passim'', except where noted.</ref>
|<ref>Bozier, Rolfe, ''[https://web.archive.org/web/20020613171622/http://www.triode.net.au/~rolfeb/nsw/codes.php3 "New South Wales Railways: NSW Station Codes"]''. Retrieved 19 June 2002.</ref><ref name="ESR1" /><ref name="IL1">{{cite journal |editor=Forsyth, J. H. |publication-date=1988–1993 |journal=Stations & Tracks |volume=1 |title=Main Suburban & Branches – Illawarra & Branches |publisher=State Rail Authority of New South Wales |location=Sydney |pages=42–44, 101–128, 206–208, ''passim'', except where noted }}</ref>
|-
|-
|'''[[Town Hall railway station, Sydney|Town Hall]]'''
|'''[[Town Hall railway station, Sydney|Town Hall]]'''
Line 98: Line 101:
|{{convert|1.21|km|mi|disp=table}}
|{{convert|1.21|km|mi|disp=table}}
|28 February 1932
|28 February 1932
|<ref name="ESR1">The Eastern Suburbs Railway platforms for Town Hall and Central stations opened 23 June 1979. Cited in Forsyth, J.H. (ed.) (1988–93), ''Stations & Tracks''; Vol. 1: "Main Suburban & Branches – Illawarra & Branches". State Rail Authority of New South Wales: Sydney, pp. 42–43.</ref>
|<ref name="ESR1">{{cite journal |editor=Forsyth, J. H. |publication-date=1988–1993 |journal=Stations & Tracks |volume=1 |title=Main Suburban & Branches – Illawarra & Branches |publisher=State Rail Authority of New South Wales |location=Sydney |pages=42–44 |quotation=The Eastern Suburbs Railway platforms for Town Hall and Central stations opened 23 June 1979. }}</ref>
|-
|-
|'''[[Wynyard railway station, Sydney|Wynyard]]'''
|'''[[Wynyard railway station, Sydney|Wynyard]]'''
Line 125: Line 128:
|-
|-
| colspan="6" |After '''[[Museum railway station, Sydney|Museum]]''', the line loops back to '''[[Central railway station, Sydney|Central]]'''
| colspan="6" |After '''[[Museum railway station, Sydney|Museum]]''', the line loops back to '''[[Central railway station, Sydney|Central]]'''
⚫
|}<gallery>
|}
File:Central Railway Sydney 001a.jpg|Central, concourse of City Circle platforms

File:Town Hall railway station, Sydney, 2022.jpg|Town Hall, platforms 5 & 6
==Gallery==
File:Wynyard station platforms 5 & 6 August 2017.jpg|Wynyard, platforms 5 & 6
⚫
<gallery>
File:Central railway station Sydney.jpg|Platform 18 and 19 at Central station
File:Platform at St James railway station, Sydney, 2022, 03.jpg|St James, platform 1
File:Museum Railway Station, Sydney 03.jpg|Museum, platforms 1 & 2
File:TownHallStation2.JPG|Town Hall – platform 4 (Illawarra line platform)
⚫
File:Circular Quay railway station, Sydney, 2023, 04.jpg|Circular Quay station
File:Wynyard Station entrance2.jpg|Wynyard station entrance, Department of Railways building, York Street
⚫
File:Circular Quay.jpg|Circular Quay station
File:St James Station Platform 1.JPG|St James platform 1
File:SydneyMuseumStation2crop gobeirne.jpg|Museum platforms
⚫
File:Open cut underground railway now completed, Museum Station, Sydney, New South Wales, ca. 1925 (9781167304).jpg|Museum Station was built using the [[cut-and-cover]] technique
File:Circular Quay Platform 2, Looking Eastbound.JPG|Circular Quay station
</gallery>
</gallery>


Line 158: Line 156:


[[Category:City Circle| ]]
[[Category:City Circle| ]]
[[Category:Underground commuter rail|City Circle]]

Latest revision as of 15:09, 9 November 2024

For other uses, see City Circle (disambiguation).

City Circle
Town Hall station, a major interchange and one of the busiest stations on the City Circle
Overview
OwnerTransport Asset Holding Entity
TerminiCentral
Stations6
Service
ServicesT2 Leppington & Inner West Line
T3 Liverpool & Inner West Line
T8 Airport & South Line
Operator(s)Sydney Trains
History
Opened20 December 1926 (1926-12-20) (first segment)
22 January 1956 (1956-01-22) (entire loop)
Technical
Line length6 km (3.7 mi)
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge
Route map
Map

The City Circle is a mostly-underground railway line located in the Sydney central business district and Haymarket, in New South Wales, Australia, that forms the core of Sydney's passenger rail network. The lines are owned by the Transport Asset Holding Entity, a State government agency, and operated under Transport for NSW's Sydney Trains brand. Despite its name, the City Circle is of a horseshoe shape, with trains operating in a U-shaped pattern. The constituent stations of the Circle are (clockwise): Central, Town Hall, Wynyard, Circular Quay, St James, Museum and back to Central.

History and description

[edit]

The original concept for the City Railway was part of a report dated 1915 submitted to the government by chief railway engineer, John Bradfield, upon his return from overseas study,[1] with work commencing the following year. His concepts were largely based on the New York City Subway, which he observed during his time in New York City.[2][3]

Construction of Museum station in 1925, using a cut and cover method

Built in stages, the first City Circle stations to open were the heritage-listed[4] Museum and St James, which both opened in 1926 as part of the initial electrification of Sydney railways. Next was the "western limb" through Town Hall and Wynyard, which opened in 1932 in conjunction with the opening of the Sydney Harbour Bridge. This section contains four tunnels. Two connected to the Harbour Bridge, while the two City Circle tunnels terminated at Wynyard. In 1956, the dead ends at St. James and Wynyard were joined and the "missing link", Circular Quay – was opened. Central and Circular Quay stations are above-ground (Circular Quay is elevated, directly underneath the Cahill Expressway), while the remainder are underground. Several unused railway tunnels also exist. The former tram tunnels at Wynyard, and other stub tunnels at St James are well known.

The original railway network for the Sydney CBD planned by John Bradfield, (left) and the network as it is today. The City Circle was built as planned and the Eastern Suburbs railway was built to a different alignment, though the Northern Beaches and Southern Suburbs line was never built.

The City Circle is double track throughout, although it forms four tracks at Central as there are two ends of the same track. The outer track is known as the "City Outer" and is used by trains travelling clockwise around the City Circle. In the direction of travel it passes through Central platform 17, Town Hall platform 6, Wynyard platform 6, Circular Quay platform 2, St James platform 2, Museum platform 2. Trains can then either proceed to Central platform 22 or 23, depending on which line they are running on. Similarly, the inner track is known as the "City Inner" and is used by trains travelling anti-clockwise. It starts from Central platform 20 or 21, again depending on which line a train is coming from. It then passes through Museum platform 1, St James platform 1, Circular Quay platform 1, Wynyard platform 5, Town Hall platform 1 then Central platform 19.

Services and operations

[edit]

The current service patterns generally consist of trains from the Inner West & Leppington Line running into the City Circle Outer, becoming Airport & South Line trains as they enter the circle. Conversely, trains from the Airport & South Line generally run into the City Circle Inner, becoming Inner West & Leppington Line trains. Liverpool & Inner West Line trains also operate via the City Circle Inner. A set of flying junctions at Central enable these patterns to be varied.

Prior to the integration of the Eastern Suburbs line into the Illawarra Line in 1980, Illawarra line trains also operated around the City Circle.

Trains on the Western and Northern lines usually do not use the City Circle but instead, proceed across the Harbour Bridge to the North Shore line and vice versa.

Speed control and reduced overlap

[edit]

For more information about signalling, see Australian railway signalling
Up until the City Circle Resignalling of the 1990s, the western stations of the line were signalling such that a following train could enter the platform while the previous train was still departing. The signal granting access to the platform would show a restrictive aspect (probably calling-on - red over red over small amber - which indicates that the train can proceed but the block is not necessarily clear) and train stops spread along the platform would control the speed of the following train. This allowed these stations to deal with 42 trains per hour in either direction provided sub 40 second dwell times. The 1990s resignalling changed the older eastern stations to follow a similar operation. At some point the system was changed again to provide additional safety. Signals on the City Circle can no longer display a calling-on aspect, but can display low-speed (red over red over small green - which means that the block is clear but to proceed slowly, not exceeding 25 kilometres per hour (16 mph)). Consequently, trains can no longer enter the platform while a previous train is departing and the system cannot handle more than 20 trains per hour.

An animated image showing the system in action
Original 1932 operation of speed controlled trips on the City Circle.

Stations

[edit]

The line has six stations.

Name Code Distance from
Central (km) 		Opened Notes
km mi
Central CEN 0 0 28 February 1855 [5][6][7]
Town Hall THL 1.21 0.75 28 February 1932 [6]
Wynyard WYD 2.05 1.27 28 February 1932 [8]
Circular Quay CQY 2.97 1.85 22 January 1956 [9]
St James SAJ 4.4 2.7 20 December 1926 [10][11]
Museum MSM 4.99 3.10 20 December 1926 [11][12][4]
After Museum, the line loops back to Central
  • Central, concourse of City Circle platforms
    Central, concourse of City Circle platforms
  • Town Hall, platforms 5 & 6
    Town Hall, platforms 5 & 6
  • Wynyard, platforms 5 & 6
    Wynyard, platforms 5 & 6
  • St James, platform 1
    St James, platform 1
  • Museum, platforms 1 & 2
    Museum, platforms 1 & 2
  • Circular Quay station
    Circular Quay station

See also

[edit]

References

[edit]
  1. ^ Wylie, R. F. (June 1971). "50 Years – A Long Time". Australian Railway Historical Society Bulletin: 140–143.
  2. ^ "Housing can deliver John Bradfield's vision". The Daily Telegraph. 4 November 2014. Retrieved 29 December 2017.
  3. ^ "A once-visionary rail plan for Sydney lost in time". The Daily Telegraph. 29 October 2014. Retrieved 29 December 2017.
  4. ^ a b "Museum railway station". New South Wales State Heritage Register. Department of Planning & Environment. Text is licensed by State of New South Wales (Department of Planning and Environment) under CC BY 4.0 licence.
  5. ^ Bozier, Rolfe, "New South Wales Railways: NSW Station Codes". Retrieved 19 June 2002.
  6. ^ a b Forsyth, J. H., ed. (1988–1993). "Main Suburban & Branches – Illawarra & Branches". Stations & Tracks. 1. Sydney: State Rail Authority of New South Wales: 42–44. The Eastern Suburbs Railway platforms for Town Hall and Central stations opened 23 June 1979.
  7. ^ Forsyth, J. H., ed. (1988–1993). "Main Suburban & Branches – Illawarra & Branches". Stations & Tracks. 1. Sydney: State Rail Authority of New South Wales: 42–44, 101–128, 206–208, passim, except where noted.
  8. ^ Wynyard Station NSWrail.net
  9. ^ Circular Quay Station NSWrail.net
  10. ^ Sydney Morning Herald 21 December 1926 pp. 11-12
  11. ^ a b "60 Years Ago". Railway Digest: 398. December 1986.
  12. ^ Museum Station NSWrail.net
[edit]
Retrieved from "https://en.wikipedia.org/enwiki/w/index.php?title=City_Circle&oldid=1256357570"