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{{Infobox public transit
| box_width       = 
| name            = T5 Cumberland Line
| logo            = TfNSW T5.svg
| logo_width      = 60px
| mode            = Commuter rail
| first           = 1996
| operator        = [[Sydney Trains]]
| authority       = [[Transport for NSW]]
| annual_patronage = 
| website         = 
| start           = Richmond
| numstops        = 30
| end             = Leppington
| distance        = 
| journeytime     = 
| frequency       = 
| trainnumber     = 
| line_used       = [[Richmond railway line]]<br />[[Main Western railway line, New South Wales|Main Western railway line]]<br />[[Main Southern railway line, New South Wales|Old Main South railway line]]<br/>[[Main Southern railway line, New South Wales|Main Southern railway line]]<br />[[South West Rail Link]]
| stock           = [[Sydney Trains M set|M]] and [[Sydney Trains A set|A]] 
}}

The '''T5 Cumberland Line''' is a commuter rail line serving the western suburbs in [[Sydney]], New South Wales, Australia. It connects Schofields and Leppington stations. Limited services extend from Schofields to Richmond. The line forms part of the [[Sydney Trains]] network and is coloured magenta on maps and informational material. Operations commenced in 1996, following the construction of a 'Y-link' track between Harris Park and Merrylands stations. The new link allowed direct services to operate from the south west suburbs to Parramatta and Blacktown without requiring a change of trains at Granville. The line takes its name from the Cumberland Plain on which much of Western Sydney was built.

==History==
{{Sydney public transport services|train=}}<!--
{{mapbox|above='''Cumberland Line history'''|text-left=yes
|text=Pre-2013 route (Blacktown to Campbelltown)|from=Cumberland Line Sydney (pre 2013).map
|text2=2013-17 route (Schofields to Campbelltown)|from2=T5 Sydney (2013-17).map
}}-->
Upon its opening in 1996, the line had a regular half-hourly service in each direction consisting of 38 journeys per day. Subsequent timetables saw its services significantly reduced to the point of running only during weekday peak hours, and from 2005 to 2013 the line only ran in one direction at a time: two services ran in the morning peak from Campbelltown towards Blacktown and three services ran in the opposite direction in the evening. Some services operated to or from Quakers Hill or Schofields on the Richmond line, but the line's official terminus on network maps and other material remained at Blacktown.

Prior to the Y-Link's opening, passengers travelling between the Western and South lines were required to change trains at [[Granville railway station|Granville]]. With the reduction in services to peak hours only, this travelling strategy was resumed by most commuters.

In 2006, the then-Iemma Labor Government's NSW State Plan committed to re-introduce a regular half-hourly service to the Cumberland line during 2007 "subject to detailed timetable and train planning... and fleet delivery, availability and rostering".<ref>New South Wales Government (2006). [https://web.archive.org/web/20071023223028/http://nsw.gov.au/stateplan/download.aspx?id=83d5472d-e6a6-46be-b7cc-22cfb099a599 NSW State Plan: Appendices]. Archived from the [http://nsw.gov.au/stateplan/download.aspx?id=83d5472d-e6a6-46be-b7cc-22cfb099a599 original] on 23 October 2007. Retrieved 3 November 2011.</ref> A CityRail news release on 15 December confirmed this intention, based on the gradual introduction of the then-new OSCAR ([[NSW TrainLink H set|H set]]) trains, which would displace outer suburban Tangara [[Sydney Trains T set|G sets]]; the latter trains then reassigned to suburban service.<ref>Rail Corporation New South Wales (2006). [http://www.cityrail.info/news/2006/061215-oscar The first Oscars are out and about]. Press release. Retrieved 3 November 2011.</ref> This promise was not delivered, and the Cumberland Line remained a peak-hour-only service with 4 car trains.

Daytime half-hourly services were re-introduced on 21 October 2013. Services finished in the early evening and did not operate on weekends. At this time, the line was also officially extended to Schofields, where most northbound services terminated. This expansion of services formed part of a broader timetable change and network reorganisation, and the line was given the number T5 as part of a program to number all Sydney Trains lines.

As part of a major timetable change for the Sydney Trains network on 26 November 2017, Cumberland Line services were modified to no longer travel to and from Campbelltown, instead starting and terminating at Leppington. Simultaneous changes to the T2 Airport, Inner West & South Line saw that line split into the [[T2 Inner West & Leppington Line]] and [[T8 Airport & South Line]]. These changes mean the section of the network between Glenfield and Macarthur is served exclusively by services operating via the [[East Hills railway line]].<ref name="aug2017" /><ref>{{cite web|url=http://www.dailytelegraph.com.au/newslocal/liverpool-leader/southwest-sydney-train-service-to-increase-with-new-peak-hour-trains-and-northsouth-connection-from-leppington-to-parramatta-and-blacktown/news-story/d73b929edb43d030766ef7fb36eccf92|title=Southwest Sydney train service to increase with new peak hour trains and north-south connection from Leppington to Parramatta and Blacktown|publisher=The Daily Telegraph|first=Eliza|last=Barr|date=27 February 2017|accessdate=27 February 2017}}</ref><ref>{{cite web|url=http://www.smh.com.au/nsw/decision-on-rail-link-to-new-sydney-airport-many-years-off-transport-minister-andrew-constance-says-20170227-gum5rs.html|title=Decision on rail link to new Sydney airport 'many years off', Transport Minister Andrew Constance says|publisher=Sydney Morning Herald|first=Matt|last=O'Sullivan|date=27 February 2017|accessdate=27 February 2017}}</ref> The changes also saw late night and weekend services introduced on the Cumberland Line.<ref>Transport for NSW (27 February 2017), [https://www.transport.nsw.gov.au/sites/default/files/b2b/projects/more-trains-more-services-sw-sydney-fact-sheet.pdf "More Trains, More Services for South Western Sydney"] Retrieved 27 February 2017</ref> The late night services extend to Richmond, replacing T1 services at these times.<ref name="aug2017">{{Cite web |url=https://web.archive.org/web/20170809041550/https://www.transport.nsw.gov.au/system/files/media/documents/2017/mtms-sydney-network-changes-aug-2017.pdf |title=Changes to Sydney’s train network |publisher=Transport for NSW |accessdate=2017-08-09}}</ref> On weekends, trains operate between Quakers Hill and Liverpool only with early morning and late night services extending to Leppington and Richmond

===Y-link===
<!--[[File:Y Link.png|500px|thumb|Track arrangement at the Y Link]]-->
The 'Y-link' was constructed as part of the Australian Government's 'Building Better Cities' program in recognition of Parramatta's place as the 'capital' of Sydney's west.<ref>{{cite web | url=http://www.arhsnsw.com.au/rdigest.htm| title=CityRail: Have times changed? | publisher=Railway Digest, November 2005. ARHS NSW Division  }}</ref> It cost $80 million to build, and required the construction of a little over one kilometre of new track. This track created a triangular junction at the junction of the 'Old Main South' and the 'Main Western' lines by laying track between Merrylands and Harris Park stations. The work included a new flyover of the 'Up Old Main South' over these new tracks.
{{clear}}

==Route==
The T5 Cumberland line traverses the [[Richmond railway line]] from Schofields/Richmond to Blacktown, the [[Main Western railway line, New South Wales|Main Western Line]] from Blacktown to Harris Park, the 'Y Link' between Harris Park and Merrylands, the "Old Main South" between Merrylands and Cabramatta, the [[Main Southern railway line, New South Wales|Main South Line]] between Cabramatta and Glenfield, and the [[South West Rail Link]] between Glenfield and Leppington.
<!--{{#tag:mapframe| {{Map of T5 Cumberland Line}} | width="450" | height="450" | longitude="150.8766" | latitude="-33.8045" | zoom="10" | align="center" | text="T5 interactive map"}}
-->

{|class="wikitable" style="font-size:90%; text-align:center;"
|+T5 Cumberland Line stations
!Name
!Railway line
!Sydney Trains<br>interchanges
!Other interchanges*
|-
|'''[[Richmond station (Sydney)|Richmond]]'''
| rowspan=11|[[Richmond railway line|Richmond]]
| rowspan="7"|{{color|grey|none}}
| rowspan="10"|{{color|grey|none}}
|-
|'''[[East Richmond station (Sydney)|East Richmond]]'''
|-
|'''[[Clarendon station (Sydney)|Clarendon]]'''
|-
|'''[[Windsor station (Sydney)|Windsor]]'''
|-
|'''[[Mulgrave station (Sydney)|Mulgrave]]'''
|-
|'''[[Vineyard station (Sydney)|Vineyard]]'''
|-
|'''[[Riverstone station (Sydney)|Riverstone]]'''
|-
|'''[[Schofields station (Sydney)|Schofields]]'''
|{{NSWPTL|T1}}
|-
|'''[[Quakers Hill station (Sydney)|Quakers Hill]]'''
|{{NSWPTL|T1}}
|-
|'''[[Marayong station (Sydney)|Marayong]]'''
|{{NSWPTL|T1}}
|-
|'''[[Blacktown station (Sydney)|Blacktown]]'''
|{{NSWPTL|T1}}
|
*{{Link:NSW intercity trains}}
|-
|'''[[Seven Hills station (Sydney)|Seven Hills]]'''
|rowspan=7|[[Main Western railway line, New South Wales|Main Western]]
|{{NSWPTL|T1}}
|rowspan="5"|{{color|grey|none}}
|-
|'''[[Toongabbie station (Sydney)|Toongabbie]]'''
|{{NSWPTL|T1}}
|-
|'''[[Pendle Hill station (Sydney)|Pendle Hill]]'''
|{{NSWPTL|T1}}
|-
|'''[[Wentworthville station (Sydney)|Wentworthville]]'''
|{{NSWPTL|T1}}
|-
|'''[[Westmead station (Sydney)|Westmead]] '''
|{{NSWPTL|T1}}
|-
|'''[[Parramatta station (Sydney)|Parramatta]]'''
|{{NSWPTL|T1}}{{NSWPTL|T2}}
|
*{{Link:NSW intercity trains}}
*{{Link:NSW regional trains}}
|-
|'''[[Harris Park station (Sydney)|Harris Park]]'''
|{{NSWPTL|T1}}{{NSWPTL|T2}}
|rowspan="13"|{{color|grey|none}}
|-
|'''[[Merrylands station (Sydney)|Merrylands]]'''
| rowspan=5|[[Main Southern railway line, New South Wales|Old Main South]]
|{{NSWPTL|T2}}
|-
|'''[[Guildford station (Sydney)|Guildford]]'''
|{{NSWPTL|T2}}
|-
|'''[[Yennora station (Sydney)|Yennora]]'''
|{{NSWPTL|T2}}
|-
|'''[[Fairfield station (Sydney)|Fairfield]]'''
|{{NSWPTL|T2}}
|-
|'''[[Canley Vale station (Sydney)|Canley Vale]]'''
|{{NSWPTL|T2}}
|-
|'''[[Cabramatta station (Sydney)|Cabramatta]]'''
| rowspan=5|[[Main Southern railway line, New South Wales|Main South]]
|{{NSWPTL|T2}}{{NSWPTL|T3}}
|-
|'''[[Warwick Farm station (Sydney)|Warwick Farm]]'''
|{{NSWPTL|T2}}{{NSWPTL|T3}}
|-
|'''[[Liverpool station (Sydney)|Liverpool]]'''
|{{NSWPTL|T2}}{{NSWPTL|T3}}
|-
|'''[[Casula station (Sydney)|Casula]]'''
|{{NSWPTL|T2}}
|-
|'''[[Glenfield station (Sydney)|Glenfield]]'''
|{{NSWPTL|T2}}{{NSWPTL|T8}}
|-
| '''[[Edmondson Park station (Sydney)|Edmondson Park]]'''
| rowspan="2" | [[South West Rail Link|South West]]
| {{NSWPTL|T2}}
|-
| '''[[Leppington station (Sydney)|Leppington]]'''
| {{NSWPTL|T2}}
|}
<nowiki>*</nowiki> Most stations are served by connecting bus services. Some additional stations may be served by intercity trains at certain times. 

==Patronage==
The following table shows the patronage of Sydney Trains network for the year ending 30 June 2019.
{{Sydney Trains patronage by line|T5=y}}
{{reflist|group=n.b.}}

== References ==
{{Reflist}}
{{attribution:en.wp|name=Cumberland Line|link=https://en.wikipedia.org/w/index.php?title=Cumberland_Line&oldid=895413952}}

[[Category:Sydney Trains]]