North South MRT Line

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     North South MRT Line
Laluan MRT Utara Selatan
வடக்கு தெற்கு எம்ஆர்டி வழி
MRT map NS.svg
The North South Line is coloured red on system maps.
Type Rapid transit
System Mass Rapid Transit (Singapore)
Status Operational
Termini Jurong East
Marina South Pier
Stations 27 , (excluding 1 reserved station in Sungei Kadut)
Services 1
Opening 7 November 1987
Owner Land Transport Authority
Operator(s) SMRT Trains (SMRT Corporation)
Character Elevated/Underground
Rolling stock C151, C651, C751B, C151A, C151B(Future)
Line length 45 km (28 mi)
Track gauge 1,435 mm (4 ft 8 12 in) standard gauge
Electrification Third rail
Route map
NS1 Jurong East
Pasir Ris – Joo Koon
Pan Island Expressway
NS2 Bukit Batok
NS3 Bukit Gombak
NS4 Choa Chu Kang
Kranji Expressway
NS5 Yew Tee
NS7 Kranji
Woodlands Flyover
Bukit Timah Expressway
NS8 Marsiling
NS9 Woodlands
Woodlands North
 Gardens by the Bay
NS10 Admiralty
NS11 Sembawang
NS12 Canberra
Sungei Simpang
NS13 Yishun
NS14 Khatib
Sungei Seletar
Lentor Flyover
Seletar Expressway
NS15 Yio Chu Kang
NS16 Ang Mo Kio
Bishan Depot
Kallang River
 Dhoby Ghaut
NS17 Bishan
NS18 Braddell
NS19 Toa Payoh
NS20 Novena
Bukit Panjang – Expo
NS21 Newton
Woodlands North
 Gardens by the Bay
NS22 Orchard
NS23 Somerset
HarbourFront – Punggol
NS24 Dhoby Ghaut
Pasir Ris
NS25 City Hall
Singapore River
NS26 Raffles Place
 Joo Koon 
NS27 Marina Bay
NS28 Marina South Pier
The North South Line is coloured red in the MRT system map.
Station names of the North South Line.

The North South Line (NSL) is the first Mass Rapid Transit (MRT) line in Singapore. The line is 45 km long with 27 stations, including the recently opened North South Line Extension and a planned station, Canberra. Travelling from one end of this line to the other end takes about one hour, and this line is coloured red on the rail map.

As the name implies, the line connects central Singapore to both northern and southern parts of the island. Cross-platform interchange with the East West Line is provided at Jurong East, City Hall and Raffles Place while transfer to the North East Line is possible via a linkway at Dhoby Ghaut. Connections to the Circle Line are provided at Bishan, Dhoby Ghaut and Marina Bay and a linkway via Esplanade. The North South Line will interchange with a future extension of the Downtown Line at Newton and with the future Thomson-East Coast Line at Woodlands, Orchard and Marina Bay.


First phase of development[edit]

The North South line was the first MRT line in Singapore, with the first section from Yio Chu Kang to Toa Payoh opening on 7 November 1987. Nine more stations from Novena to Outram Park followed on 12 December 1987, with through service onto what is today the East West Line. Separate operation of the North South and East West Lines only started in 4 November 1989, when the extension to Marina Bay was opened.

Second phase of development (Woodlands Extension)[edit]

During the initial planning of the Woodlands Extension MRT line, Sembawang station was only intended as a provisional station to be built at a later date due to the underdevelopment of the town and Kranji station was not planned. But on the second round of planning, the government decided to build these station and omit Sungei Kadut station from the plan. Sungei Kadut station will be built later if the town's population justifies the necessity for the station.[1]

Jurong East Modification Project (JEMP)[edit]

The Jurong East Modification Project consisted of the construction of a new platform and the addition of a fourth track to Jurong East Station.[2] It has been in use since 27 May 2011.[3] Originally it opened from 7am to 9am, this was expanded from 27 December 2011 and it also opens during the evening peak hour.[4]

North South Line Extension (NSLe)[edit]

A 1-kilometre (0.6 mi), one station extension from Marina Bay to Marina South Pier station was opened on 23 November 2014, one year earlier than originally planned.[5] The extension serves the Marina Bay Cruise Centre Singapore in Marina Bay.

Half-height platform screen door installations[edit]

There were calls for platform screen doors to be installed at above-ground stations after several incidents in which passengers were killed by oncoming trains when they fell onto the railway tracks at above-ground stations. Underground stations already featured the doors since 1987. The authorities initially rejected the proposal by casting doubts over functionality and concerns about the high installation costs,[6] but made an about-turn when the government announced plans to install half-height platform screen doors on the above-ground stations in January 2008, citing lower costs due to it becoming a more common feature worldwide.[7] They were first installed at Jurong East and Yishun stations in 2009 as trial runs.[8]

Installation began on May 2011 at Ang Mo Kio MRT Station, and by 14 March 2012, Kranji MRT Station, the last station for installation began operational (and please refer to the elevated MRT stations for more details on "installation of half-height platform screen doors").[9]

Line disruptions[edit]

On 15 December 2011, services between Bishan and Marina Bay stations were suspended due to 40 metres of the power rail being damaged between City Hall and Dhoby Ghaut stations. Trains along the stretch were stalled, causing a disruption to the train service for almost 5 hours. Train service fully resume at 11.40pm.[10][11]

On 17 December 2011, a similar fault caused a 7-hour disruption between Ang Mo Kio and Marina Bay stations.[12][13] According to SMRT, the disruption was caused by damage to the third rail and the trains' collector shoes. Seven trains were damaged in this incident.[14]

These two service disruptions on the North-South Line were the worst ever since SMRT started operation for 24 years.[15]

Timber to concrete sleeper replacement works[edit]

Timber sleepers are designed to last 15 to 25 years. They have to be replaced when they are near the end of their lifespan, or when they show signs of significant wear and tear. The new sleepers will allow trains to move along the tracks smoothly and without the current speed restrictions. Passengers can look forward to safe, smoother and faster train rides. In view of this, SMRT had to adjust last train timings earlier on the North South Line. It is expected to be completed by April 2015, and was divided into three phases: Phase 1 (Marina Bay-Bishan), Phase 2 (Bishan-Admiralty) and Phase 3 (Admiralty-Jurong East). Marina South Pier was exempted from the sleeper replacement work as it is a new station. After the completion of sleeper replacement works, last train timings remains unchanged.



Station Number Station Name Interchange/Notes
 NS1  EW24  Jurong East East West Line
 NS2  Bukit Batok  
 NS3  Bukit Gombak  
 NS4  BP1  Choa Chu Kang Bukit Panjang LRT
 NS5  Yew Tee  
 NS7  Kranji  
 NS8  Marsiling  
 NS9  TE2  Woodlands Thomson-East Coast Line (under construction)
 NS10  Admiralty  
 NS11  Sembawang  
 NS12  Canberra (under construction)
 NS13  Yishun Yishun shuttle terminus
 NS14  Khatib  
 NS15  Yio Chu Kang  
 NS16  Ang Mo Kio  
 NS17  CC15  Bishan Circle Line
 NS18  Braddell  
 NS19  Toa Payoh  
 NS20  Novena  
 NS21  DT11  Newton Downtown Line (under construction)
 NS22  TE14  Orchard Thomson-East Coast Line (under construction)
 NS23  Somerset
 NS24  NE6  CC1  Dhoby Ghaut North East Line
Circle Line
 NS25  EW13  City Hall East West Line
 NS26  EW14  Raffles Place East West Line
 NS27  CE2  TE20  Marina Bay Circle Line
Thomson-East Coast Line (under construction)
 NS28  Marina South Pier

The North South MRT Line currently reserved a station "NS6" between Yew Tee and Kranji - which is called Sungei Kadut and will open in 2030s.

Rolling stock[edit]

Trains operating on the line are the C151s, the C651s, C751Bs, C151As and C151Bs. These trains operates from the Bishan Depot which serves maintenance and train overhaul facilities for trains along the North South Line. The trains can also crossover to the East West Line as both the North South Line and East West Line are built as one system operating two different lines.


  1. ^ Woodlands MRT line | Infopedia
  2. ^[dead link]
  3. ^ "New Platform At Jurong East Station To Open On 27 May". Land Transport Authority of Singapore. 16 May 2011. Retrieved 2014-11-22. 
  4. ^ Jurong East station opens new platform – Channel NewsAsia
  5. ^ "SPEECH BY MR RAYMOND LIM,MINISTER FOR TRANSPORT, AT THE VISIT TO KIM CHUAN DEPOT, 25 JANUARY 2008, 9.00 AM". Singapore Government Media Release. 2008-01-25. 
  6. ^ "Safety at MRT and LRT Stations — Respect The Yellow Line" (Press release). Land Transport Authority. 20 November 2005. [dead link]
  7. ^ "Platform screen doors for all above-ground MRT stations by 2012". The Straits Times. 25 January 2008. Archived from the original on 2008-01-28. 
  8. ^ Yeo Ghim Lay (3 September 2008). "Platform doors for elevated MRT stations". The Straits Times. p. 26. 
  9. ^ "LTA Completes Installation of Half Height Platform Screen Doors". Land Transport Authority. 14 March 2012. Retrieved 2013-11-16. 
  10. ^ "North-South MRT Line breakdown hits thousands". Channel News Asia. 15 December 2011. Retrieved 2012-03-17. 
  11. ^ "2nd Update – SMRT statement : Service disruption on North-South Line (Northbound): Marina Bay Station to Bishan Station". 
  12. ^ "MRT breaks down again". Channel NewsAsia. 17 December 2011. 
  13. ^ "North-South Line service resumes after 7-hour disruption". Channel NewsAsia. 17 December 2011. 
  14. ^ "Service disruption on North-South Line on 17 Dec 2011". 
  15. ^ "Minister Updates Parliament on MRT Disruptions". Ministry Of Transport. 9 January 2012. 

External links[edit]