North East MRT line

North East MRT line
An Alstom Metropolis C751A train at Hougang Station on the North East line, the most crowded station on the line.
Overview
Native name	Laluan MRT Timur Barat 东北地铁线 வடக்கு கிழக்கு எம்ஆர்டி வழி
Type	Rapid transit
System	Mass Rapid Transit (Singapore)
Status	Operational Under construction (Punggol Coast)
Termini	HarbourFront Punggol Punggol Coast (2023)
Stations	16 (excluding reserved station for NE2) 1 (Under construction)
Services	1
Daily ridership	579,000 (Q1 2017)
Operation
Opened	20 June 2003 (2003-06-20) 15 January 2006 (2006-01-15) (Buangkok) 20 June 2011 (2011-06-20) (Woodleigh) 2023 (2023) (Punggol Coast)
Owner	Land Transport Authority
Operator(s)	SBS Transit
Character	Fully underground
Depot(s)	Sengkang
Rolling stock	C751A C751C C851E (Future)
Technical
Line length	19.2 km (11.9 mi) (Operational) 1.6 km (0.99 mi) (Under construction)
Track gauge	1,435 mm (4 ft 8 1⁄2 in) standard gauge
Electrification	1500V DC Overhead catenary
Operating speed	limit of 90 km/h (56 mph)
Route map

The North East line is coloured purple in the MRT system map.

The North East line (NEL) is a high-capacity Mass Rapid Transit line in Singapore. It runs from HarbourFront in the south-west to Punggol in the north-east. The line is currently 19.2 kilometres (11.9 mi) long with 16 stations,^[1] and a full journey from one end to the other takes 33 minutes.^[2] This line is coloured purple on the rail map. Being the third line in the Singapore MRT system, it was first opened on 20 June 2003. It is the first MRT line in the network to use fully automated and driverless trains,^[3] and is also the world's first fully automated and driverless high-capacity rapid transit line to use conventional steel-wheel technology (as opposed to the rubber-tired, medium-capacity technology found in systems like VAL). The North East line is also the first line to feature Art in Transit across all 16 stations and full Wireless@SG coverage in all 16 stations. It is the first MRT line to be operated by SBS Transit. It is also the first MRT line to be entirely underground and all the stations on the North East line have island platforms.

Overview

As the name implies, the line connects central Singapore to the north-eastern and south-western parts of the island. It passes through busy areas such as Chinatown, Clarke Quay and Dhoby Ghaut (which have historical and cultural value), and through the mature and new residential estates at Potong Pasir, Serangoon, Hougang, Sengkang and Punggol.^[1] The North East line passes through the Eu Tong Sen Street, Serangoon Road, Bendemeer Underpass, Upper Serangoon Road and the Upper Serangoon Viaduct. This line is the first in Singapore to be entirely underground and the first line to be operated by SBS Transit.

The North East line is the first line in Singapore to have artwork integrated into all its 16 stations under the Art in Transit programme.^[1] Other than the Art in Transit programme, the interior architecture for the stations are typical of the design of the early 2000s with lots of white, glass and steel. This kind of design can be seen in other subway stations built during this period like the Shenzhen Metro and Hong Kong MTR's Tseung Kwan O line.

As of 2017, trains operate at two to three-minute intervals during weekday peak hours, four to five-minute intervals during weekday off-peak hours and three-and-a-half to five-minute intervals on weekends.^[4]

History

The North East line dates back to 1986, where the Communications Minister Yeo Ning Hong had announced that it would be "feasible to extend the MRT once it is 3 million". The line would have gone from Punggol and Seletar/Jalan Kayu to Outram Park.

In the initial stages of planning, Outram Park was initially planned to be the southern terminus of the North East line. However, in 1993, the Land Transport Authority decided to extend the line southwards to HarbourFront, after noting that many people liked to go to the World Trade Centre (the present day HarbourFront Centre).

The Land Transport Authority received approval for the construction of the North East line on 16 January 1996, shortly after the plans were feasible once the Hougang Central Bus Interchange is already opened since 17 December 1994. French company Alstom was chosen as the main contractor and manager of the project. The operating license was given to new rail operator SBS Transit in order to foster competition with SMRT Trains. Construction began on 1 January 1997 and was completed on 20 January 2001, but all the stations had been completed with new signages.

The line was scheduled for completion in December 2002, but due to various problems in the automation, the opening was repeatedly delayed. It was finally opened on 20 June 2003, with higher fares than existing lines supposedly to compensate for the heavy construction costs (S$4.6 billion).

Buangkok MRT station exterior

At the time that the line was opened, all of the stations were operating except Buangkok and Woodleigh. SBS Transit announced that these would open only when there was a critical mass of passengers in those areas. With respect to Buangkok, which had already been fully built, the company claimed that the projected number of passengers was too low to cover operating costs. Constant public pressure, notably the "White Elephant" incident and subsequent media attention, forced it to review the situation and the station duly opened on 15 January 2006. The last station on the line, Woodleigh, opened on 20 June 2011 in anticipation of an American International School which is under construction in the vicinity of the station that is slated to open in 2012.^[5]

Stations

North East MRT Line
■ Dhoby Ghaut  NE1  CC29  HarbourFront ■ Marina Bay    NE3  EW16  TE17  Outram Park ■ Pasir Ris  ■ Tuas Link ■ Woodlands North  ■ Sungei Bedok  NE4  DT19  Chinatown ■ Expo    NE5  Clarke Quay Singapore River  NE6  NS24  CC1  Dhoby Ghaut ■ Marina South Pier  ■ Jurong East ■ HarbourFront      ■ Bukit Panjang  NE7  DT12  Little India  NE8  Farrer Park  NE9  Boon Keng  NE10  Potong Pasir  NE11  Woodleigh  NE12  CC13  Serangoon ■ Dhoby Ghaut  ■ HarbourFront  NE13  Kovan  NE14  CR8  Hougang  NE15  Buangkok Sengkang Depot ■ West Loop: Fernvale via Renjong  ■ East Loop:  Bakau via Ranggung  NE16  STC  Sengkang ■ West Loop: Fernvale via Cheng Lim  ■ East Loop:  Bakau via Compassvale ■ West Loop: Samudera via Soo Teck  ■ East Loop  Riviera via Cove  NE17  PTC  Punggol ■ West Loop: Samudera via Sam Kee  ■ East Loop:  Riviera via Damai

Singapore MRT North East line route map

Station number	Station name	Image	Interchange/notes	Distance (km)
				Between stations	Total
NE1  CC29	HarbourFront		Interchange with the Circle line	0.0	0.0
NE2	Reserved station		(reserved for future use)
NE3  EW16  TE17	Outram Park		Interchange with the East West line and the Thomson-East Coast line (2021)	2.6	2.6
NE4  DT19	Chinatown		Interchange with the Downtown line	0.7	3.3
NE5	Clarke Quay			0.6	3.9
NE6  NS24  CC1	Dhoby Ghaut		Interchange with the North South line and the Circle line	1.4	5.3
NE7  DT12	Little India		Interchange with the Downtown line	1.0	6.3
NE8	Farrer Park			0.8	7.1
NE9	Boon Keng			1.2	8.3
NE10	Potong Pasir			1.6	9.9
NE11	Woodleigh		Most recent station to be opened.	0.9	10.8
NE12  CC13	Serangoon		Interchange with the Circle line	1.2	12.0
NE13	Kovan			1.7	13.7
NE14  CR8	Hougang		Future interchange with Cross Island Line	1.5	15.2
NE15	Buangkok		Station opened later on line.	1.3	16.5
NE16  STC	Sengkang		Interchange with the Sengkang LRT	1.1	17.6
NE17  PTC	Punggol		Interchange with the Punggol LRT	1.6	19.2
North East line extension (Under construction) (Completion by 2023)
NE18	Punggol Coast			1.6	20.8

The North East line's numbering scheme reserves station code "NE2" for future use.

Rolling stock

Alstom Metropolis trains serving the North East MRT Line stabled in Sengkang Depot.

The rolling stock consists of Alstom Metropolis trains ordered under C751A and C751C contracts, running in six-car formation. These trains operate from Sengkang Depot near Buangkok station on the North East line. The Sengkang Depot has maintenance and train overhaul facilities for trains along the North East Line.

In 2010, the government announced that they would be looking to increase the number of trains on the North East Line by 70% within 5 to 6 years to cater to an expected increase in passenger traffic. 18 trains of six cars each were purchased under turnkey contract C751C and housed in Sengkang Depot. These train-sets have been on passenger service since 1 October 2015. ^[9][10]

The North East Line is the only line which uses a pantograph system for collecting power from overhead catenary; all other lines take power from a third rail.

In 2018, a further 36 rail cars (6 train-sets) were acquired to cater to the future extension of the line to Punggol Coast. ^[11]

Train control

The North East line is equipped with Alstom Urbalis 300 Communications-based train control (CBTC) moving block signalling system on the MASTRIA system with Automatic train control (ATC) under Automatic train operation (ATO) GoA 4 (UTO).^[12] The subsystems consist of Automatic train protection (ATP) to govern train speed, Iconis Automatic Train Supervision (ATS) to track and schedule trains and Smartlock Computer-based interlocking (CBI) system that prevents incorrect signal and track points to be set.

Train Data Management System (TDMS) which concentrate and dispatch the rolling stock information with fixed equipment. The IAGO Waveguide communications network has the capability to transmit video and is almost maintenance-free. Base stations are located within the signalling equipment room.

Automatic platform screen doors supplied by Westinghouse provide safety for passengers, offering protection from arriving and departing trains.

Line disruptions

On 15 March 2012, more than 117,000 commuters were affected during a peak hour train breakdown between Dhoby Ghaut and HarbourFront, caused by faulty overhead power cables at the tunnel of the Outram Park that had snapped. A second problem was discovered relating to electricity insulation, delaying the service further. Train services resumed at 4.35 pm after nearly 10 hours of disruption making it the third breakdown in 4 months.^[13][14][15] Subsequently, the Land Transport Authority (LTA) intends to impose financial penalties amounting to S$400,000 on SBS Transit for the train service disruption along the North East line on 15 March 2012.^[16]

On 13 October 2015, train service was disrupted between Farrer Park and Hougang for more than half an hour due to a power fault. It was triggered by a malfunction of a component in the electrical switchgear at a substation which caused the main circuit breaker to trip. As an interim measure, SBS Transit has increased the protection setting of the circuit breaker to cater for the projected maximum load of the network.

On 26 October 2015, about 41,000 commuters were affected during morning peak hour when a power fault crippled the whole line from Punggol to Harbourfront stations. This is the first time that both the north- and south-bound service are affected which resulted in the mobilization of about 100 free shuttle buses across the NEL. The Alstom Metropolis C751C train was returning to the Sengkang Depot when the driver saw sparks from above the train and stopped the train at a stretch where the mainline and depot catenary system wires overlap. This resulted in arching between the wires of the mainline and the depot. This caused the catenary system wires to melt and eventually snap. As a precautionary measure, SBS Transit has marked non-stopping areas at all overlapping zones and reduced electrical voltage difference between the catenary system wires at the overlap point, in case trains stop at this stretch.^[17]

See also

• List of driverless trains

External links

• North East Line
• North East Line (SBS Transit)

References