North South MRT Line

North South MRT Line 南北地铁线 வடக்கு தெற்கு எம்ஆர்டி வழி
The North South Line is coloured red on system maps.
Overview
Type	Rapid transit
System	Mass Rapid Transit (Singapore)
Status	Operational
Termini	Jurong East Marina Bay
Stations	25
Services	1
Operation
Opened	7 November 1987
Owner	Land Transport Authority
Operator(s)	SMRT Trains (SMRT Corporation)
Rolling stock	C151, C151A, C651, C751B
Technical
Line length	44 km (27 mi)
Track gauge	1,435 mm (4 ft 8 1⁄2 in) Standard gauge
Electrification	Third rail
Route map Legend  Pasir Ris  Peak hour through-service NS1 Jurong East ■  Joo Koon  Pan Island Expressway NS2 Bukit Batok NS3 Bukit Gombak Bukit Batok Rd Choa Chu Kang Ave 1  Fajar  NS4 Choa Chu Kang ■ Kranji Expressway NS5 Yew Tee KTM railway line Woodlands Rd NS7 Kranji Bukit Timah Expressway, Woodlands Flyover NS8 Marsiling NS9 Woodlands NS10 Admiralty Gambas Ave Sungei Serangoon NS11 Sembawang Sembawang Rd NS13 Yishun NS14 Khatib Lentor Ave Sungei Seletar Seletar Expressway, Lentor Flyover Yio Chu Kang Rd NS15 Yio Chu Kang NS16 Ang Mo Kio Ang Mo Kio Ave 3 Ang Mo Kio Ave 1 Bishan Depot Kallang River  Marymount – Dhoby Ghaut  NS17 Bishan ■ NS18 Braddell NS19 Toa Payoh NS20 Novena  Bukit Panjang – Expo  NS21 Newton ■ NS22 Orchard NS23 Somerset  HarbourFront – Punggol  NS24 Dhoby Ghaut ■ ■  Marymount   Pasir Ris  NS25 City Hall ■ Singapore River NS26 Raffles Place ■  Joo Koon   Promenade  NS27 Marina Bay ■ NS28 Marina South Pier

The North South Line (NSL) is the first Mass Rapid Transit (MRT) line in Singapore. The line is currently 44 km long with 25 stations, and is operated by SMRT Corporation. Traveling 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 transfer to the East West Line is provided at Jurong East, City Hall and Raffles Place stations while transfer to the North East Line is possible via a linkway at Dhoby Ghaut station. For Circle Line is provided at Bishan, Dhoby Ghaut and Marina Bay stations and a linkway. The future Downtown Line will interchange with the North South Line at Newton station. When the Woodlands Extension was opened in 1996, the Branch Line consisting of the route from Jurong East MRT Station to Choa Chu Kang MRT Station was integrated into the main line.

History

Initial System

• 7 November 1987: Yio Chu Kang - Toa Payoh (First section opened)
• 12 December 1987: Toa Payoh - Raffles Place
• 20 December 1988: Yio Chu Kang - Yishun
• 4 November 1989: Raffles Place - Marina Bay (start of separate North South Line & East West Line)
• 10 March 1990: Jurong East - Choa Chu Kang (initially operated as the Branch Line of the East West Line)

2nd phase of development (Woodlands Extension)

• 10 February 1996: Yishun - Choa Chu Kang (the Choa Chu Kang branch of the East West Line became part of the present North South Line)

When the government did the initial planning of the Woodlands extension MRT line, Sembawang MRT station was only intended as a provisional station to be build at a later date due to the underdevelopment of the town and Kranji MRT 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 build later if the town's population justifies for the necessity for the station.

North South Line Extension

A 1 km one station extension to the North South Line will be constructed and completed by 2014. The new Marina South Pier station will be located near the upcoming International Cruise Terminal at Marina Bay. Minister Raymond Lim announced on 12 February 2009 that the completion date for the extension, initially due for completion in 2015, will be brought forward by a year to 2014.

Jurong East Modification Project

The Jurong East Modification Project (JEMP) consisted of the construction of a new platform and the addition of a fourth track to Jurong East Station.. It has been in use since 27 May 2011. The North South Line currently utilises the new track and platform during the weekday morning peak hours from 7am to 9am only. From 27 December 2011, the platform and track will be utilised during the weekday evening peak hours. The new track and platform allows trains to be run at a higher frequency during weekday peak hours. Waiting time is now reduced from 4.5 minutes to 2.5 minutes. Along with the new platform and tracks, 22 Kawasaki Heavy Industries C151A trains will be added to the fleet to reduce waiting time and increase train frequencies. Currently all 22 trains are in service as of February 2012.

Possible future stations

At least 2 more stations may be added to the line in the future since alphanumeric codes NS6 & NS12 have been reserved for future use.

• 1 new station between Yew Tee Station & Kranji Station
• 1 new station between Sembawang Station & Yishun Station

Stations

Station Number	Station Name	Interchange/Notes
NS1  EW24	Jurong East	East West Line Cross-platform transfer available between Marina Bay-bound and both Pasir Ris-bound and Joo Koon-bound trains Platform A , D/E - Marina Bay-bound Platform B/C - Pasir Ris-bound Platform F - Joo Koon-bound Platform A and B only open during weekdays morning & evening peak hours from 7 - 10 am & 5 - 8 pm
NS2	Bukit Batok
NS3	Bukit Gombak
NS4  BP1	Choa Chu Kang	Bukit Panjang LRT
NS5	Yew Tee
NS7	Kranji
NS8	Marsiling	Station terminus of Marsiling shuttle during weekday evening peak hours
NS9  TS2	Woodlands	Thomson Line (under planning) Station terminus for special events
NS10	Admiralty
NS11	Sembawang
NS13	Yishun	Station terminus of Yishun shuttle during peak hours and special event train service
NS14	Khatib
NS15	Yio Chu Kang
NS16	Ang Mo Kio	Station terminus of North South Line Lunch Time Xpress train service and special event train service
NS17  CC15	Bishan	Circle Line
NS18	Braddell
NS19	Toa Payoh
NS20	Novena
NS21  DT11	Newton	Downtown Line (under construction)
NS22	Orchard
NS23	Somerset
NS24  NE6  CC1	Dhoby Ghaut	North East Line Circle Line
NS25  EW13	City Hall	East West Line Cross-platform transfer available between Marina Bay-bound and Pasir Ris-bound trains, and between Jurong East-bound and Joo Koon-bound trains
NS26  EW14	Raffles Place	East West Line Cross-platform transfer available between Marina Bay-bound and Joo Koon-bound trains, and between Jurong East-bound and Pasir Ris-bound trains
NS27  CE2	Marina Bay	Circle Line
NS28	Marina South Pier	(U/C)

Rolling stock

Four batches of rolling stock are in service on the line, i.e. the Kawasaki Heavy Industries C151, the Siemens C651, the Kawasaki Heavy Industries & Nippon Sharyo C751B and the Kawasaki Heavy Industries C151A. These trains operate from the Bishan depot between Ang Mo Kio station and Bishan station on the North South Line. The Bishan Depot has maintenance and train overhaul facilities for trains along the North South Line. Currently, all 22 Kawasaki Heavy Industries C151A are in service as of February 2012.

Line Disruptions/Train Breakdown

Two service disruptions on the North-South Line (NSL) that took place on 15 and 17 December 2011 caused major disruptions ever since SMRT started operation for 24 years.

See also

• North South Line Facebook