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T9 Northern Line
The T9 Northern Line is a future commuter rail line serving the northern suburbs of Sydney, New South Wales, Australia. The line will form part of the Sydney Trains network and will be coloured red on maps and informational material. The line will enter service in April 2019.
- F1 Manly
- F2 Taronga Zoo
- F3 Parramatta River
- F4 Cross Harbour
- F5 Neutral Bay
- F6 Mosman Bay
- F7 Double Bay
- F8 Cockatoo Island
The line begins at Hornsby - a junction station with the T1 North Shore & Western Line. The line heads south to Strathfield via Epping using the Main Northern railway line. Services then run along the Main Suburban railway line, usually using the middle 'Suburban' pair of the six tracks between Strathfield and Redfern. Services generally do not stop at intermediate stations between Burwood and Redfern. Continuing to Central, services then pass through the western limb of the City Circle before heading across the Sydney Harbour Bridge and continuing to Gordon via the North Shore railway line.
The traditional Northern Line was the suburban portion of the Main Northern railway line, which opened in as a single track line 1886. In 1892, the line was duplicated to Hornsby, and electrified in 1926 as part of the Bradfield electrification scheme. In 1932 the line was connected to the City underground.
In 2009 the line was substantially modified to run via the Epping to Chatswood railway line, which had opened earlier in the year. This saw the line run from Hornsby to Epping, then in a loop via Chatswood, the city and Strathfield. After returning to Epping, trains would terminate and return to Hornsby in the opposite direction.
Following victory in the 2011 New South Wales election, the new O'Farrell Government embarked on reform of transport in New South Wales. In November 2011, a new organisation, Transport for NSW, was created to improve planning and coordination of transport projects and services. The organisation developed a new rail timetable and branding, which was put into effect on 20 October 2013. This saw the merger of the North Shore Line and Western Line (Berowra - City via Gordon then to Emu Plains or Richmond via Strathfield) with the Northern Line Hornsby - City via Macquarie Park then to Epping via Strathfield). A new numbering system was also introduced and the line was given the number T1. The Northern Line's traditional red colour was discarded in favour of the North Shore and Western lines' yellow.
The Epping to Chatswood railway line closed in late 2018 for conversion to metro standards as part of the Sydney Metro Northwest project. This saw the Northern Line return to its traditional route, although it is still being operated under the T1 North Shore, Northern & Western Line banner. In early 2019 Transport for NSW decided to reinstate separate branding for the Northern Line. The new line will operate from Hornsby to Gordon via Strathfield. It will return to using red as its line colour and will adopt the number T9. 
|Railway line||Other lines||Interchanges*|
|Gordon||17.1 km||1890||North Shore|
|St Leonards||8.4 km||1890|
|North Sydney||5.1 km||1932|
|Milsons Point||4.4 km||1932|
|Town Hall||1.2 km||1932|
|Redfern||1.3 km||1878||Main Suburban||
(T8 peak hours only)
|North Strathfield||13.4 km||1918||Main Northern||none|
|Concord West||14.5 km||1887|
|West Ryde||19.2 km||1886|
|Pennant Hills||30 km||1886|
* Most stations are served by connecting bus services.
- "NSW Railway Passenger Services 1880-1905.". Australian Railway History, April 2005. ARHS NSW Division. http://www.arhsnsw.com.au.
- O'Sullivan, Matt (20 February 2019). "A new red line through Sydney's rail map". The Sydney Morning Herald. https://www.smh.com.au/national/nsw/a-new-red-line-through-sydney-s-rail-map-20190220-p50z1r.html.
- "You can now see the new metro line on a rail map". https://www.timeout.com/sydney/news/you-can-now-see-the-new-metro-line-on-a-rail-map-022119.
- "NSW Rail.net Main North line". http://www.nswrail.net/lines/show.php?name=NSW:main_north. Retrieved 3 July 2007.
- "NSW Rail.net North Shore line". http://www.nswrail.net/lines/show.php?name=NSW:north_shore. Retrieved 3 July 2007.
- "NSW Rail.net City Circle". http://www.nswrail.net/lines/show.php?name=NSW:city_circle. Retrieved 3 July 2007.
- "NSW Rail.net Main South line". http://www.nswrail.net/lines/show.php?name=NSW:main_south. Retrieved 3 July 2007.
The first revision of this article was based on the following revision of the English Wikipedia article "Northern railway line, Sydney": https://en.wikipedia.org/w/index.php?title=Northern_railway_line,_Sydney&oldid=575242776.
The first revision of this article was based on the following revision of the English Wikipedia article "North Shore, Northern & Western Line": https://en.wikipedia.org/w/index.php?title=North_Shore,_Northern_%26_Western_Line&oldid=884030283.