Wikipedia

East–West MRT line

(Redirected from East-West MRT line)
This article is about the MRT line in Singapore. For other similarly named rapid transit lines in other cities, see East–West line (disambiguation).

The East–West Line (EWL) is a high-capacity Mass Rapid Transit (MRT) line operated by SMRT in Singapore, running from Pasir Ris station in the east to Tuas Link station in the west, with an additional branch between Changi Airport and Tanah Merah stations. It is the second Mass Rapid Transit line to be built in Singapore. Coloured green on the rail map, the line serves 35 stations, 8 of which (from Lavender to Tiong Bahru and Changi Airport stations) are underground.[2] At 57.2 kilometres (35.5 mi), the line is the longest on the MRT network.


East–West Line
An R151 Train at the platform of Tuas Link station, the western terminus of the line.
Overview
Native nameLaluan MRT Timur Barat
东西地铁线
கிழக்கு மேற்கு எம்ஆர்டி வழி
StatusOperational
OwnerLand Transport Authority
LocaleSingapore
Termini
Stations35
Service
TypeRapid transit
SystemMass Rapid Transit (Singapore)
Services3
Operator(s)SMRT Trains (SMRT Corporation)
Depot(s)Tuas
Ulu Pandan
Changi
East Coast (Future)
Rolling stockKawasaki Heavy Industries C151 (KHI)
Kawasaki–Sifang C151A (KSF A)
Kawasaki–Sifang C151B (KSF B)
Kawasaki–Sifang C151C (KSF C)
Alstom Movia R151 (ALS)
Daily ridership508,957 (July 2020)[1]
History
Opened12 December 1987; 36 years ago (1987-12-12) (as part of North–South Line)
4 November 1989; 35 years ago (1989-11-04) (renamed as East–West Line)
6 July 1990; 34 years ago (1990-07-06) (Initial line complete)
10 January 2001; 23 years ago (2001-01-10) (Expo)
18 October 2001; 23 years ago (2001-10-18) (Dover)
8 February 2002; 22 years ago (2002-02-08) (Changi Airport)
28 February 2009; 15 years ago (2009-02-28) (Boon Lay extension)
18 June 2017; 7 years ago (2017-06-18) (Tuas West extension)
Technical
Line length57.2 km (35.5 mi)
CharacterElevated (Pasir Ris – Kallang, Redhill – Tuas Link, Expo)
Underground (Lavender – Tiong Bahru, Changi Airport)
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification750 V DC third rail
Operating speedlimited to 80 km/h (50 mph)
Route map

Legend
 EW1 
Pasir Ris
 CP1 
 CR5 
■
← to Punggol / Bright Hill
to Aviation Park →
Tampines Expressway
Sungei Tampines
 DT32 
■
Downtown Line
to Bukit Panjang
 EW2 
Tampines
Pan Island Expressway
 EW3 
Simei
 CG2 
Changi Airport
 DT35 
■
Downtown Line
to Sungei Bedok
 CG1 
Expo
Changi Depot
Sungei Bedok
 EW4   CG 
Tanah Merah
 EW5 
Bedok
 EW6 
Kembangan
 EW7 
Eunos
 EW8 
Paya Lebar
 CC9 
■
Circle Line
to Dhoby Ghaut or Marina Bay
 EW9 
Aljunied
 EW10 
Kallang
Kallang River
 EW11 
Lavender
 DT14 
■
← to Bukit Panjang
to Expo →
 EW12 
Bugis
■
North–South Line
to Jurong East
 NS25 
 EW13 
City Hall
Singapore River
 EW14 
 NS26 
Raffles Place
■
North–South Line
to Marina South Pier
■
Thomson–East Coast Line
to Bayshore
 EW15 
Tanjong Pagar
 NE3 
■
← to Punggol
to HarbourFront →
 TE17 
 EW16 
Outram Park
■
Thomson–East Coast Line
to Woodlands North
 EW17 
Tiong Bahru
 EW18 
Redhill
 EW19 
Queenstown
 EW20 
Commonwealth
 CC22 
■
Circle Line
to HarbourFront
 EW21 
Buona Vista
 EW22 
Dover
 EW23 
Clementi
 CR17 
■
← to Aviation Park
to Jurong Lake District →
Sungei Ulu Pandan
Ulu Pandan Depot
Sungei Pandan
■
Jurong Region Line
to Pandan Reservoir
 NS1 

 EW24 

 JE5 
Jurong East
■
North–South Line
to Marina South Pier
■
Jurong Region Line
to Tengah
 EW25 
Chinese Garden
 EW26 
Lakeside
 EW27 
Boon Lay
 JS8 
■
← to Tawas
to Jurong Pier →
 EW28 
Pioneer
 EW29 
Joo Koon
Pan Island Expressway
Ayer Rajah Expressway
 EW30 
Gul Circle
 EW31 
Tuas Crescent
 EW32 
Tuas West Road
 EW33 
Tuas Link
Tuas Depot
Ayer Rajah Expressway
Singapore Rail Test Centre
This diagram:

Constructed and opened as part of the North–South Line (NSL) in the early stages of development, the East–West Line was the second rail line formed in Singapore after NSL, with the opening of the eastern extension to Tanah Merah on the EWL in 1989. Nevertheless, both lines use identical signalling equipment and rolling stock. The East–West Line signalling systems have been upgraded along with the North–South Line, with both MRT lines having its signalling fully upgraded, converting it from semi-automatic to fully automatic.

History

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Initial developments

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The first segment of what would become the East–West Line, between City Hall and Outram Park stations, was opened on 12 December 1987 as part of the North–South Line and Phase 1 of the initial system.[3][4] Subsequently, it was extended westwards to Clementi station on 12 March 1988[4] and to Lakeside on 5 November 1988.[5]

The 15-kilometre (9.3 mi) eastern extension to Tanah Merah station opened on 4 November 1989, which also marked the start of independent operations as the East–West Line.[5] The opening ceremony was attended by then First Deputy Prime Minister Goh Chok Tong.[6][7]

The 6-kilometre (3.7 mi) line extension to Pasir Ris station was opened ahead of schedule on 16 December 1989[7][8] with a sneak preview beforehand.[9] Boon Lay station opened on 6 July 1990, marking the completion of the initial MRT system.[10]

Subsequent developments

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Dover station

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Dover station
Main article: Dover MRT station

Construction on a new infill station located between Buona Vista station and Clementi station, namely Dover station, began in June 1998. It is the first station in the MRT network to be built as an infill station.[11] The building of the station was met with reservations by some members of the public over the small area it serviced and there were criticisms over the spending of "taxpayers' money" chiefly for use only by students of one educational institution.[12] Despite some opposition, the Land Transport Authority proceeded with the construction to serve commuters along Singapore Polytechnic with Dover housing estate.[13][14] The station opened on 18 October 2001.[15] Prior to opening, test runs were conducted from 13 to 17 October 2001 when the trains stopped at the station but did not open their doors.

Tanah Merah to Airport extension line

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Changi Airport station

The idea of extending the Mass Rapid Transit system to Changi Airport was reconsidered when Terminal 3 of the airport was being built.[16] Earlier plans had long been made for a new line branching off from the existing East–West Line at Tanah Merah,[17] with some conceptual plans showing a tentative route alignment up to the airport along Airport Boulevard, continuing beyond the airport to Changi Point, before turning southwest back towards the city along the eastern coasts. The plans were finally announced by then Deputy Prime Minister Lee Hsien Loong on 15 November 1996.[18] However, the new route alignment showed a deviation from previous plans,[19][20] where the final plan involved in building only the first two stations of Expo, and Changi Airport, the latter being the underground station built between Terminal 2 and Terminal 3. The alignment of the station at the airport also switched perpendicularly to an east–west direction, such that the station leads to two of the terminals directly from either end of the station. The station's designs were unveiled on 10 February 1998 with construction starting on 29 January 1999.[21][22] Expo and Changi Airport were opened on 10 January 2001 and 8 February 2002 respectively and operates under a shuttle service. Prior to 22 July 2003, train services from Boon Lay commences after the opening, but were later reverted to shuttle services due to low patronage.[23][24] On 25 May 2019, it was announced that the Changi Airport Extension will be converted to become part of Thomson-East Coast line Extension (TELe) by 2040.[25][26][27]

Boon Lay and Tuas extension

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Tuas Link station

The 3.8-kilometre (2.4 mi) Boon Lay extension was first announced by the LTA on 29 December 2004, set to serve residents from the Jurong West Town area and those working in the Jurong Industrial Estate.[28] The two stations, Pioneer and Joo Koon stations, officially opened on 28 February 2009.[29][30]

On 11 January 2011, the Tuas West extension, an extension of the East–West Line from Joo Koon to Tuas Link was announced.[31] The extension has a span of 7.5 kilometres (4.7 mi), which spans a twin-tracked MRT viaduct, four above-ground stations and a 26-hectare depot to provide stabling and maintenance facilities for the additional trains that will be bought for the extension and to cater for future expansion of the line.[32] The viaduct is integrated with part of a 4.8-kilometre-long (3.0 mi) road viaduct along Pioneer Road, which will increase the road capacity to cope with anticipated increase in traffic. The stations are Gul Circle, Tuas Crescent, Tuas West Road, and Tuas Link. On 4 May 2012, the Land Transport Authority marked the start of construction of the Tuas West extension with a groundbreaking ceremony at the site of the future Tuas Link station.[33][34]

The extension began service on 18 June 2017.[35][36][37] During initial stages after opening, the westbound trains will alternate their terminus between Joo Koon and Tuas Link, where for every two trains, one train will terminate at the former, while the other train will terminate at the latter.[38]

Additional platform at Tanah Merah station

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On 25 August 2014, the Land Transport Authority announced that a new platform will be constructed at Tanah Merah, enabling faster travel and shorter waiting times for commuters heading towards Expo and Changi Airport on the Changi Airport branch line of the East–West Line.[39]

On 26 October 2016, the Land Transport Authority awarded the civil contract to Lum Chang Building Contractors Pte. Ltd. to build a new platform at Tanah Merah and viaducts for a contract sum of S$325 million. In addition to the new platforms, the existing East–West Line tracks will be extended to connect the line to the new four-in-one East Coast Integrated Depot at Changi.[40] When completed in 2024, it will be the second station to have triple island platforms after Jurong East.

Half-height platform screen door installations

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There were calls for platform screen doors (PSDs) to be installed at above-ground stations after several incidents in which passengers were killed or seriously injured 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,[41] but made an about-turn later with the government announcing plans to install half-height platform screen doors on the elevated stations on 25 January 2008, citing lower costs due to it becoming a more common feature worldwide.[42] They were first installed at Jurong East, Pasir Ris, and Yishun stations in 2009 as trial runs.[43][44] On 31 August 2011, the LTA announced completion of the installation of PSDs along the East–West Line, with Expo being the last station on the line to receive the PSDs.[45] Installation of PSDs across both the North–South and East–West lines (NSEWL) were completed on 14 March 2012, 3 months ahead of schedule.[46]

Improvement works

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Timber to concrete sleeper replacement works

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The timber sleepers on the East–West Line was required to be replaced as they were near the end of their 25-year lifespan. The replacement sleepers, made of concrete, have a significantly longer lifespan.[47] To speed up works, train services on the East–West Line was adjusted to end earlier. The work was divided into three phases: Phase 1 (Bugis – Tanah Merah), Phase 2 (Joo Koon – Jurong East, Tanah Merah – Pasir Ris) and Phase 3 (Jurong East – Outram Park). The sleepers were fully replaced on 18 February 2017.[48]

Re-signalling works

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A new moving-block signalling system, supplied by Thales, replaced the former ageing fixed-block signalling system on the East–West Line. The new signalling system, costing $195 million, reduces waiting times for trains during peak periods from 120 seconds then to 100 seconds now.[49] The new system became operational between Pioneer and Tuas Link stations on 18 June 2017. Newer rolling stocks, such as the C151B and C151C, are equipped for use solely on the new signalling system.[50] Since 27 May 2018, the new signalling system has been operating full-day on the entire East–West Line.

Third-rail replacement

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Replacement works on the third rail, which provides electricity to the trains, were carried out between September 2015 and August 2017.[51] The new third rail replaced its 30-year-old predecessor and is expected to increase reliability of the East–West line's electrical system.[52]

Pasir Ris turnback extension

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A new railway turnback located at Pasir Ris station, the eastern terminus of the line, was announced by the Land Transport Authority on 29 Jun 2018. It would extend the railway viaduct past the station by 148 metres.[53] The turnback will allow for an increase in service frequency during peak times from 30 to 36 trains per hour as trains will be able to change directions faster to head westwards on the line, to meet future increases in ridership demand. Construction started in 2019 and is set to be completed by mid-2024.[54]

Incidents

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1993 Clementi train collision

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Main article: Clementi rail accident

On 5 August 1993, before opening, a maintenance vehicle spilt oil on the tracks between Clementi and Jurong East. The first ten eastbound trains reported braking problems, then the eleventh train from Jurong stopped at the Clementi station for two minutes longer than scheduled due to it using its emergency brakes to stop at the station at 7.50 am, before being hit by another eastbound train when it failed to stop in time. 156 passengers were injured by the collision.[55]

7 July 2015 power trip

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During the evening peak hours on 7 July 2015, train services on the East–West and North–South Lines were temporarily disrupted due to massive power trips detected along both lines. The cause of the disruption was due to damaged insulators which had resulted in the failure of the power supply.[56] For this disruption that brought inconvenience to 413,000 commuters, LTA imposed a 'record' fine of S$5.4 million on SMRT.[57]

22 March 2016 staff fatalities

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Main article: Pasir Ris rail accident

At about 11:08 a.m. on 22 March 2016, two SMRT track-maintenance trainee staff were run over and killed by a C151 train approaching Pasir Ris station,[58] resulting in a temporarily service delay between Tanah Merah and Pasir Ris for over two hours that affected at least 10,000 commuters.[59]

The two trainee staff had joined SMRT in January 2016 and worked as technicians under a technical team of 15 staff led by a supervisor and were tasked to go down to the tracks to investigate an alarm triggered by a possible signalling equipment fault close by the station. An operator cited that they were granted access to the tracks, but did not coordinate with a Signal Unit in the station to ensure trains could not travel in the area where the team was.[60]

Patrick Nathan, SMRT vice-president, promised that "SMRT will review all safety protocols particularly those involving track access".[61] SMRT chief executive Desmond Kuek apologised for the incident and said SMRT will investigate how "the [two men] got hit by the train". SMRT fired both an engineer responsible for leading with the team and the train driver who was involved at the scene of the incident.

The engineer who led the inspection team was charged with negligence causing death under the Penal Code[62] and was subsequently sentenced to 4 weeks in jail.[63] SMRT Trains and one member of SMRT management were charged for violating the Workplace Safety and Health Act for lapses which led to the accident,[62] and were fined $400,000 respectively.[64] and $55,000.[65] On 20 July 2018, the Land Transport Authority fined the operator S$1.9 million (US$1.41 million) for this incident and the Bishan tunnel flooding.[66][67]

15 November 2017 train collision and disruptions

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Main article: Joo Koon rail accident

A second train collision occurred on 15 November 2017 at approximately 8.18am, where two C151A trains collided at Joo Koon MRT station. A train fault caused the first train heading in the direction of Tuas Link to stall at the station. A minute later, a second train stopped behind the first and then "moved forward unexpectedly," hitting the other train. Thirty-eight people, including two SMRT staff, were hospitalized.[68][69][70][71][72][73]

Train services between Tuas Link and Joo Koon stations were temporally suspended in both directions for two hours on the day itself and the entire day on 16 November 2017, and westbound trains temporarily terminated at Joo Koon.[74][75]

An update by the Land Transport Authority (LTA) & SMRT on 16 November 2017 stated that LTA and SMRT had decided to isolate for up to one month the operations of the Tuas West extension, which runs on the new signalling system, from the rest of the East–West Line, which runs on the old signalling system, enabling LTA engineers to carry out further assurance checks together with Thales. The train was switching systems when the collision took place.[76] Train service on the line resumed on 20 November, with the Tuas West extension between Gul Circle and Tuas Link using the new signalling system and the section between Pasir Ris and Joo Koon, together with the Changi Airport Branch continuing to run on the old signalling system. Train services between Joo Koon and Gul Circle were temporarily suspended until its resumption on 28 May 2018; between the suspension a free bridging bus service is available between the two stations. Continuous service between Pasir Ris and Gul Circle resumed on 28 May 2018, with the permanent activation of the new CBTC system; since the incident, selected portions of either the North–South Line or East–West Line were closed to conduct track renewal works with early weekend closures and later station openings.[77]

25-30 September 2024 train derailment and disruptions

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Main article: September 2024 East–West MRT line disruption

Train services between Boon Lay and Queenstown had been suspended since 9am on 25 September 2024 after trains lost power on a stretch near Clementi MRT station. A defective train axle box on one of the first generation C151 trains, which had been deadheading to Ulu Pandan Depot after it was withdrawn at Clementi station, dropped onto the tracks near Dover station and caused the wheels of a bogie - an undercarriage - to come off the running rail and hit track equipment, including stretches of the third rail, 3 point machines as well as power cables and rail clips.[78][79] In an update at about 9:30pm on 25 September 2024, LTA and SMRT announced that train services between Buona Vista and Jurong East would remain suspended on 26 September 2024, the 1st day of the PSLE exams, while service between Boon Lay and Jurong East, and Queenstown and Buona Vista, would each run their own separate shuttle services every 10 minutes.[79][80][81] On Thursday night, SMRT announced that no trains will run between Jurong East and Buona Vista for a third straight day, with full service expected to resume the following Monday. However, in an update at about 4:30pm on 29 September 2024, the target date for restoration of full service was pushed back to Tuesday.[82][83] On September 30, SMRT and LTA announced that full service would fully resume on October 1, with westbound train speeds being reduced from the usual 60-80 kilometres per hour (37.5-50mph) to 40 kilometres per hour (25mph) until October 3, as part of a standard process after rail replacements. [84]

Network and operations

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Train services on the East–West Line operates from approximately 5:30 am to around midnight daily. In general, during peak hours, train frequency is 2 to 3 minutes while during non-peak hours the frequency is reduced to 5 minutes throughout the entire route.[85] The first train departs Tanah Merah at 4:55 am to head towards Pasir Ris, which will depart at 5:08 am as a downroute to reach Jurong East at 6:03 am; and the first train departs Tanah Merah at 5:03 am for Changi Airport Line which will reach one-loop at 5:24 am. The first train departs Tuas Link at 4:45 am and 4:50 am to head towards Pasir Ris at 5:09 am (Jurong East) and 6:00 am (Tanah Merah).

Train services on the East–West Line are also subjected to maintenance and renewal works, usually on selected Fridays, Saturdays or Sundays. Shuttle bus services may be provided throughout the duration of the early closures and late openings for affected commuters.[86] Operations of the East–West Line are affected by the COVID-19 pandemic, leading to the drop of ridership.[87][88]

Route

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Geographically accurate map of the East–West MRT line.

As its name implies, the East–West Line connects central Singapore to both eastern and western parts of the island, with an additional branch between Changi Airport and Tanah Merah, which operates as a separate shuttle service. It is 57.2 kilometers (35.5 miles) long and it is predominantly double-tracked, but certain short sections at Tanah Merah, Outram Park and Joo Koon widens to three tracks, four tracks nearby Jurong East station and a section between Jurong East and Clementi station and five tracks nearby Changi Depot and Tanah Merah station.

Some stations are commonly placed at the middle of the roads such as Tanah Merah, Bedok, Queenstown, Commonwealth, Dover, Clementi, Pioneer, Joo Koon, Gul Circle, Tuas Crescent and Tuas West Road. The line runs mostly on overhead viaducts but goes underground in the city area between Kallang and Redhill, Bedok and Kembangan, and between Expo and Changi Airport. Travelling from one end of the line to the other takes about 85 minutes.

The line begins above ground at Pasir Ris station from where it continues to head south towards Simei station. The line curves between Simei to Tanah Merah stations and continues westwards, joining the Changi Airport branch, paralleling New Upper Changi Road. Two branch lines to Changi Depot and to Changi Airport station exists between Simei and Tanah Merah stations. At Tanah Merah station, the line extends to four tracks due to its interchange with the Changi branch before turning back into two tracks in a western direction.

From Bedok station to Kembangan station, the line goes underground but then goes above-ground, and follows the route of Sims Avenue and Sims Avenue East in an opposite direction. After Kallang station, the line goes underground through the Central Area and runs heads south-west towards City Hall station. It then runs parallel to the North–South Line between City Hall and Raffles Place stations, which are cross-platform interchanges to the North–South Line. After Tanjong Pagar, the line curves northwestwards towards Outram Park. After Tiong Bahru, the line continues above ground starting with Redhill station and follows the direction of Commonwealth Avenue, Commonwealth Avenue West and Boon Lay Way. Between Clementi and Jurong East station, three branches (one going east and two going west) to Ulu Pandan Depot are deployed. At Jurong East station, the line extends again to four tracks due to its interchange with the North-South line but then, separates into two before heading west to Chinese Garden station. After Pioneer station, the line heads south-west before curving westwards towards Joo Koon station. The line terminates at Tuas Link with a branch heading towards Tuas Depot.

The Changi Airport extension starts at Tanah Merah station as a single track before turning eastwards to Expo station. After Expo station, it goes underground and curves south before terminating at Changi Airport station.

The East–West Line was constructed along the North–South Line. As such, both lines used identical signalling equipment and rolling stock.

Stations

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The line serves 35 stations across 57.2 kilometres (35.5 mi) of track, and station codes for the line are green, corresponding to the line's colour on the system map.[89][90] 8 stations, including Changi Airport, and 7 other stations on the stretch from Lavender to Tiong Bahru are underground, with the rest being elevated. With the exception of Dover, all stations have island platforms.

East–West Line stations timeline
Date Project Description
7 November 1987 Phase 1 Yio Chu Kang – Toa Payoh (Now part of the North-South Line)
12 December 1987 Toa Payoh – Outram Park (Direct train service to Outram Park via Raffles Place)
12 March 1988 Phase 1A Outram Park – Clementi
5 November 1988 Phase 2B Clementi – Lakeside
20 December 1988 Yio Chu Kang – Yishun (Now part of the North-South Line)
4 November 1989 Phase 2A City Hall – Tanah Merah (Separation of the North-South Line & East–West Line)
16 December 1989 Tanah Merah – Pasir Ris
10 March 1990 Phase 2B Jurong East – Choa Chu Kang (Operates as a branch line from Jurong East, now part of the North-South Line)
6 July 1990 Lakeside – Boon Lay
10 January 2001 Changi Airport Extension Tanah Merah – Expo
18 October 2001 Dover Station Dover station between Buona Vista and Clementi
8 February 2002 Changi Airport Extension Expo – Changi Airport
28 February 2009 Boon Lay Extension Boon Lay – Joo Koon
18 June 2017 Tuas West Extension Joo Koon – Tuas Link
16 November 2017 Temporary closure of Joo Koon – Tuas Link (Due to a train collision at Joo Koon)
20 November 2017 Reopening of Gul Circle – Tuas Link (Reopens as a separate line, transfer between Joo Koon & Gul Circle)
28 May 2018 Reopening of Joo Koon – Gul Circle (Merges into one line)

Legend

 
Elevated		    
Line terminus		  
Transfer outside paid area
 
Ground-level 		 
Wheelchair accessible 		 
Bus interchange
 
Underground		  
Civil Defence Shelter 		           
Other transportation modes

List

Station code Station name Images Interchange;
Adjacent transportation 		Opening Cost
 
 EW1  CR5   CP1 
   		 Pasir Ris      Cross Island Line  (2030)
   CRL Punggol Extension  (2032)
―
  Pasir Ris
16 December 1989;
34 years ago
 S$5 billion
 EW2 – DT32 
     		 Tampines      Downtown Line   
―
  Tampines
  Tampines Concourse
 EW3 
   		 Simei   —
 EW4   CG  
   		 Tanah Merah      EWL Changi Airport Branch Line  (until 2040)
   Thomson–East Coast Line  (after 2040)
4 November 1989;
35 years ago
 EW5 
   		 Bedok     Bedok
 EW6 
   		 Kembangan   —
 EW7 
   		 Eunos     Eunos
 EW8  CC9 
   		 Paya Lebar      Circle Line 
 EW9 
   		 Aljunied   —
 EW10 
   		 Kallang     Lorong 1 Geylang
 EW11 
     		 Lavender   —
 EW12  DT14 
     		 Bugis      Downtown Line 
 EW13  NS25 
     		 City Hall      North–South Line 
12 December 1987;
36 years ago
 EW14  NS26 
     		 Raffles Place      North–South Line 
 EW15 
   		 Tanjong Pagar  
 EW16  NE3  TE17 
     		 Outram Park      North East Line 
   Thomson–East Coast Line  
 EW17 
     		 Tiong Bahru  
12 March 1988;
36 years ago
 EW18 
   		 Redhill   —
 EW19 
   		 Queenstown  
 EW20 
   		 Commonwealth  
 EW21  CC22 
     		 Buona Vista      Circle Line 
―
  Buona Vista
  Ghim Moh
 EW22 
   		 Dover   —
18 October 2001;
23 years ago
 S$45 million[91]
 EW23  CR17 
   		 Clementi      Cross Island Line  (2032)
―
  Clementi
12 March 1988;
36 years ago
 S$5 billion
 
 EW24  NS1  JE5 
   		 Jurong East      North–South Line 
   JRL East Branch  (2028)
―
  Jurong East
5 November 1988;
36 years ago
 EW25 
   		 Chinese Garden   —
 EW26 
   		 Lakeside  
 EW27  JS8 
   		 Boon Lay      Jurong Region Line  (2027)
―
  Boon Lay
6 July 1990;
34 years ago
 EW28 
   		 Pioneer   —
28 February 2009;
15 years ago
 S$436 million[92]
 EW29 
   		 Joo Koon     Joo Koon
 EW30 
   		 Gul Circle   —
18 June 2017;
7 years ago
 S$3.5 billion[93]
 EW31 
   		 Tuas Crescent  
 EW32 
   		 Tuas West Road  
 
 EW33 
   		 Tuas Link     Tuas
―
  Tuas Checkpoint  
Changi Airport Line (CAL)
 CG1  DT35  
     		 Expo      Downtown Line 
10 January 2001;
23 years ago
 S$850 million[94]
 
 CG2  
   		 Changi Airport     Changi Airport
―
  Changi Airport Terminals 1–4  
8 February 2002;
22 years ago

SMRT used to operate the branch sector of Tanah Merah to Changi Airport as a through service from Boon Lay from 18 November 2001 until 22 July 2003, when it was replaced with a shuttle service. By 2040, the Changi Airport line (CAL) will be converted to the Thomson-East Coast line.[26][27]

Depots

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Number Depot name;
Lines 		Location Images Line-specific
stabling capacity 		Cost Opening Footnotes
1
   Changi  (until 2026) Changi   35 trains S$250 million
4 November 1989;
35 years ago
2
   Ulu Pandan 
  NSL 		 Jurong East   45 trains S$130 million
12 March 1988;
36 years ago
3
   Tuas  Tuas   60 trains S$237.1 million[95]
18 June 2017;
7 years ago
4
   East Coast  (after 2026) Changi Does not appear 72 trains S$1.99 billion[96][97][98]
2026;
2 years' time
 Under construction, shares the same depot with Downtown line and Thomson-East Coast line.

Infrastructure

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Rolling stock

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A variety of rolling stock on the East–West Line
 
Various older generation rolling stock of the East–West Line parked at Ulu Pandan Depot.
 
A newer rolling stock R151 approaching Buona Vista MRT Station

Five batches of rolling stock operate on the East–West Line, namely the C151, C151A, C151B, C151C and R151 from oldest to newest, shared with the North–South Line. Trains are maintained at Changi Depot, Ulu Pandan Depot and Tuas Depot, which provide train maintenance, inspection and overhaul facilities.[99][100][101] These models of rolling stock were introduced to boost the capacity on both the North–South and the East–West lines in order to cope with increasing ridership.[102][103][104][105][106][107][108][109]

Both the North–South and the East–West lines utilized identical rolling stock up until the 2010s, when the C151A trains were temporary suspended from operating on the North–South Line from January 2012 until November 2013 following the 2011 train disruptions.[110][111][112][113][114][115] The C151B trains, which were introduced in April 2017, did not begin revenue service on the full stretch of the East–West Line until the line's trial of the CBTC signalling system in May 2018.[116][117][118] The C151C trains, despite their introduction on 30 September 2018 on the North–South Line, only made their full day debut on the East–West Line on 4 November 2023.[119][120]

Another generation of rolling stock, the R151 trains, will be delivered from 2022 to 2026, to replace all 66 first-generation C151, all 19 second-generation C651 and all 21 third-generation C751B trains. The R151 trains are the first rolling stock on the East–West Line to be manufactured by Bombardier (Bought by Alstom in 2021), which has also supplied trains for the Downtown Line.[121][122][123] The first train entered service on the East–West Line on 4 June 2023.[124]

Signalling

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Half-Platform Screen Doors installed in Tanah Merah station

The East–West Line is equipped with Thales SelTrac communications-based train control (CBTC) moving block signalling system[125] with automatic train control (ATC) under automatic train operation (ATO) Grades of Automation (GoA) 3.[126] The subsystems consist of automatic train protection (ATP) to govern train speed, NetTrac MT Automatic Train Supervision (ATS) to track and schedule trains and a computer-based interlocking (CBI) system that prevents incorrect signal and track points to be set.[127]

The old signalling system has undergone decommissioning work from August 2018 and was completed on 23 November 2018.[128] It consists of Westinghouse fixed block signalling system with Automatic train control (ATC) under Automatic train operation (ATO) GoA 2.[129] The subsystems consist of Automatic train protection (ATP) to govern train speed, Automatic Train Supervision (ATS) to track and schedule trains and a Relay interlocking system that prevents incorrect signal and track points to be set.

The stretch of track between Pioneer and Tuas Link stations was equipped with the new signalling system which came into use in June 2017. As the section of track between Pioneer and Joo Koon support 'mixed-mode' of both signalling systems, trains terminating at either Joo Koon or Tuas Link would have to change signalling modes at Pioneer MRT station as trains terminating at Joo Koon would proceed to a turn back siding which was built as part of the TWE which only supports the new signalling system. Eastbound trains towards Pasir Ris would have to change back to the old signalling system at Pioneer MRT station. This procedure was removed after the train collision at Joo Koon as trains terminated at Joo Koon. The new signalling system became fully operational on 28 May 2018.[77]

Platform screen doors

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When the line was first opened, full-height platform screen doors supplied by Westinghouse were installed at underground stations. These doors serve to prevent suicides, enable climate control within the station, better security control by restricting access to the tunnels and tracks and for overall passenger safety considerations.[130] The authorities initially rejected calls for platform screen doors to be installed at elevated stations by casting doubts over functionality and concerns about the high installation costs.[131] Nevertheless, the LTA reversed its decision and made plans to install half-height platform screen doors on elevated stations on 25 January 2008.[132][133] The first platform screen doors by ST Electronics were installed at Pasir Ris, Jurong East and Yishun stations in 2009 as trial runs.[134] Subsequently, installation began in May 2011 at Ang Mo Kio station on the North–South Line. On 14 March 2012, platform screen doors became operational at all elevated stations on the East–West Line.[135] Stations along the TWE had half-height platform screen doors manufactured by Fangda installed during the station's construction.[136]

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The line's Changi Branch is featured in tvN series Little Women.[137]

References

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