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Punggol LRT line

From Wikipedia, the free encyclopedia
This article is about the LRT line. For the MRT/LRT station on the line, see Punggol MRT/LRT station.

Punggol LRT
Logo of Punggol LRT line
A C810 on the Punggol LRT
A C810 on the Punggol LRT
Overview
Native nameLaluan LRT Punggol
榜鹅轻轨线
பொங்கோல் எல்ஆர்டி வரி
StatusOperational
OwnerLand Transport Authority
LocaleSingapore
TerminiPunggol
Stations15
Service
TypeAutomated guideway transit/People mover
SystemLight Rail Transit (Singapore)
Services4
Operator(s)SBS Transit Ltd (ComfortDelGro Corporation)
Depot(s)Sengkang
Rolling stockMitsubishi Heavy Industries Crystal Mover (C810, C810A, C810D)
Daily ridership23,698 (July 2020)[1]
History
Opened
  • 29 January 2005; 20 years ago (2005-01-29) (East Loop)
  • 29 June 2014; 10 years ago (2014-06-29) (West Loop)
Technical
Line length10.3 km (6.4 mi)
CharacterFully elevated
Track gauge1,850 mm (6 ft 27⁄32 in)
Guide rail span: 3.2 m (10 ft 6 in)
Electrification750 V DC Third rail[2]
SignallingKyosan APM fixed block ATC under ATO GoA 4 (UTO), with subsystems of ATP, ATS and CBI[3]
Route map

Legend
West loop
 PW4 
 Samudera
Punggol Point
 PW3 
 PW5 
 Nibong
Teck Lee
 PW2 
Punggol Waterway
 PW6 
 Sumang
Sam Kee
 PW1 
 PW7 
 Soo Teck
 CP4 
North East Line
to HarbourFront
■
■
North East Line
to Punggol Coast
 NE17 
non-revenue track
to Sengkang LRT
Punggol
 PTC 
Punggol Rd
 PE1 
 Cove
Damai
 PE7 
 PE2 
 Meridian
Oasis
 PE6 
 PE3 
 Coral Edge
Kadaloor
 PE5 
 PE4 
 Riviera
■
Cross Island Line
to Pasir Ris
 CP3 
East loop
This diagram:
Concourse level of Punggol MRT/LRT station, with escalators leading up to the LRT platform.

The Punggol LRT is a fully elevated automated guideway transit line in Singapore. The line, which initially opened on 29 January 2005, connects the residential districts and suburbs of Punggol to Punggol Digital District and Punggol Town Centre, which consist of Singapore Institute of Technology (SIT)’s campus and JTC’s Business Park, and where the town centre connects with the North East MRT line, Punggol Bus Interchange, and Waterway Point.

The first phase is a 10.3-kilometre (6.4 mi) line with 15 stations in two loops. It is the second LRT line to be operated by SBS Transit.

History

[edit]

Plans for the Punggol LRT line were drawn up and announced in January 1999 with the development of Punggol New Town. Construction began in June 2000 by a consortium comprising Sembcorp Industries, Mitsubishi Heavy Industries and Mitsubishi Corporation, at a cost of S$354 million. Meanwhile, the Punggol LRT line was awarded to Singapore Bus Service (present-day SBS Transit) on 20 May 1999.[4][5] The first phase was completed in June 2004 and underwent testing by the Land Transport Authority. The system was handed over to SBS Transit on 1 December that year, which conducted more trial runs and staff training before the opening of the East Loop on 29 January 2005.[6][7][8] However, due to limited developments around some stations on the loop at the time, only the stretch of stations from Cove station to Kadaloor station were opened.[9] The West Loop opened in stages from 29 June 2014.[10]

In 2024, the Land Transport Authority announced that the Teck Lee LRT station will open to improve public transport connectivity and serve the upcoming Singapore Institute of Technology (SIT) Punggol campus. This came after 19 years since the opening of the line in 2005. The date of the opening of Teck Lee station was later announced to be 15 August 2024.[11][12]

A covered middle track at Punggol station and two short track pieces branching from Teck Lee station had already been built in anticipation of a possible branch line to Punggol North, but these plans were subsequently cancelled, and a new Punggol Coast MRT station is being built instead.[13]

Improvements

[edit]

On 31 October 2012, the Land Transport Authority announced that by 2016 the Sengkang and Punggol LRT lines would be upgraded to two-car trains, doubling the passenger capacity. An additional 16 more cars were to be ordered, bringing the total fleet size to 57. The longer trains also required modifications to the signaling and communication system.[14]

On 29 December 2016, trains started operating in the two-car formations on the line's East loop during morning and evening peak hours from 6.45 am to 8.45 am and from 6.15 pm to 8.15 pm. Service frequency will be maintained at three to four minutes during morning and evening peak hours.[15]

On 15 December 2017, the Land Transport Authority said there will be limited services on parts of the Sengkang-Punggol LRT (SPLRT) on most Sundays from 14 January 2018 to 25 February that year, to facilitate renewal and improvement works from (except 18 February as it is a Chinese New Year holiday). Only one platform will open for service at 5.30am on Sundays. The other platform will open from 7am.[16][17][18] On 22nd of that month, SBS Transit said the arrangement is expected to continue until end April that year.[19][20]

From 27 May to 7 October that year, limited services on Sundays will continue on the Sengkang-Punggol LRT (SPLRT). One platform will open at 5.30am and the other platform will open at 5.30pm.[21][22]

On 5 February 2021, the Land Transport Authority announced that it has purchased 17 two-car trains for the Punggol and Sengkang LRT systems. The new trains will be delivered progressively from 2024 to 2027. In addition to new trains, the Sengkang Depot will also be expanded to 11.1 ha (27.4 acres) from the existing 3.5 ha (8.6 acres) to ensure that is capacity and maintenance space for the new trains. The expansion of the depot will also see two new reception tracks being built to shorten the train launching time. To ensure there is enough electricity to support the larger fleet of trains, 3 new power stations will be built, increasing the total number of power stations supporting the system to 8 once completed.[23]

From the second quarter of 2024, track intrusion device was fully implanted across the Sengkang-Punggol LRT stations. The system uses advanced video analytics and artificial intelligence to detect people and objects falling on tracks.[24]

Stations

[edit]

Punggol LRT has a total of 15 stations, consisting of Punggol interchange, seven stations on the West Loop: Sam Kee, Teck Lee, Punggol Point, Samudera, Nibong, Sumang, Soo Teck, and seven stations on the East Loop: Damai, Oasis, Kadaloor, Riviera, Coral Edge, Meridian, Cove. Each station has two boarding platforms, equipped with static signboards that indicate the clockwise and anti-clockwise travel direction. Punggol interchange's two boarding platforms manages four services, with static signboards indicating the clockwise or anti-clockwise travel direction, and illuminated signboards indicating whether arriving trains are bound for the East or West Loop.[25]

Punggol LRT line stations timeline
Date Project Description
29 January 2005 East Loop East Loop (except Oasis and Damai stations) opened for uni-directional operation.[26]
15 June 2007 Oasis opened.[27][28]
20 June 2011 Damai opened. East Loop became fully operational in both directions throughout the day.[29]
29 June 2014 West Loop West Loop (except for Sam Kee, Teck Lee, Punggol Point and Samudera) opened for uni-directional operation.[10]
29 February 2016 Sam Kee opened.[30]
29 December 2016 Punggol Point opened.[15][31]
31 March 2017 Samudera opened.[32]
29 September 2018 West loop became fully operational in both directions throughout the day, except for Teck Lee.[31]
15 August 2024 Teck Lee opened.[33]
Stations on the 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 Location(s)
 PTC  NE17  CP4 
 		 Punggol   North East Line 
  CRL Punggol Extension  (2032)
―
 Punggol		 29 January 2005;
20 years ago		 Punggol
East Loop
 PE1 
 		 Cove — 29 January 2005;
20 years ago		 Punggol
 PE2 
 		 Meridian
 PE3 
 		 Coral Edge
 PE4 – CP3 
 		 Riviera   CRL Punggol Extension   (2032)
 PE5 
 		 Kadaloor —
 PE6 
 		 Oasis 15 June 2007;
17 years ago
 PE7 
 		 Damai 20 June 2011;
13 years ago
West Loop
 PW1 
 		 Sam Kee — 29 February 2016;
9 years ago		 Punggol
 PW2 
 		 Teck Lee 15 August 2024;
9 months ago
 PW3 
 		 Punggol Point 29 December 2016;
8 years ago
 PW4 
 		 Samudera 31 March 2017;
8 years ago
 PW5 
 		 Nibong 29 June 2014;
10 years ago
 PW6 
 		 Sumang
 PW7 
 		 Soo Teck

Services

[edit]

There are four services in total, with two on each loop. Train service operates from 5:20 am to 12:38 am on the East Loop and 5:18 am to 12:40 am on the West Loop.[34]

Terminal via Loop Direction
Punggol Soo Teck West Loop Soo Teck to Sam Kee
Clockwise direction
Punggol Cove East Loop Cove to Damai
Anti-clockwise direction
Punggol Damai East Loop Damai to Cove
Clockwise direction
Punggol Sam Kee West Loop Sam Kee to Soo Teck
Anti-clockwise direction

Infrastructure

[edit]

Rolling stock

[edit]
A two-car Mitsubishi Crystal Mover approaching Kadaloor station
The LRT trains on the Sengkang–Punggol LRT lines are parked at the top level of Sengkang Depot.

The Sengkang and Punggol LRT lines (SPLRT) utilise the Crystal Mover Automated People Mover (APM) rolling stock manufactured by Mitsubishi Heavy Industries.[35] The rubber-tyred trains are fully automatic and can accommodate up to 105 passengers per vehicle.[36][37] The SPLRT has an initial fleet of 41 APMs, with 16 more APMs delivered under contract C810A.[38][39] The APMs are configured for single car or two-car operations,[38] with a maximum capacity of 36 trainsets on the network.[40] In February 2022, the LTA ordered another fleet of 17 two-car APMs[a] from Mitsubishi for S$439 million.[42][43] This was followed by another order for eight more two-car trains in May 2023, costing S$87 million.[44][45] The new trains are set to replace the 25 one-car trains and half of the 16 two-car trains, bringing the overall SPLRT fleet to 33 two-car APMs.[44] The first two trainsets were delivered to Singapore on 23 November 2024 and are expected to commence operations in 2025.[46]

The APMs have a top speed of 80 km/h (50 mph), with a maximum operational speed of 70 km/h (43 mph).[36] They are powered by 750V DC third rail located on one side of the guideway.[47] Each vehicle is 11.84 m (38.8 ft) long and 2.69 m (8.8 ft) wide.[36] The exterior has a crystal-like design with a polyhedral nose reflective of its namesake. Mitsubishi describes the curved sides of the APM as a design choice to "soften" the sharpness of its polyhedral shape. The exterior is painted pearl white and indigo blue.[48]

As driverless vehicles, the APMs do not include a driver cabin.[48] Instead, detrainment doors at both ends of the cabin allow emergency evacuation of passengers onto the track.[49] The emergency stop button and emergency notice system are located at the right-side corner of the vehicle's front, while line maps and service information are displayed on the left. The interior features white side panels and ceiling, a grey floor, grayish-blue seats, and handrails and grip bars accented in a wine color.[48] The cabins are air-conditioned.[50]

The SPLRT trains are maintained and stabled on the second floor of Sengkang Depot.[47] Located between the Layar and Tongkang LRT stations on the Sengkang LRT line,[51] the depot also houses the trains of the North East line.[42] Its facilitates include a two-story main building with an operation control center room, automatic vehicle washing facility, maintenance garage, departure inspection track, stabling yard, power receiving and transforming facilities, and a test track.[47] The 3.5-hectare (8.6-acre) site is being expanded to 11.1 hectares (27 acres), which will include two more reception tracks and three new traction power substations to expand the depot's stabling and maintenance capacity.[42][52]

Train control and power system

[edit]

The Punggol LRT line is fully automatic[37] and is equipped with a Kyosan APM fixed block signalling system.[53] The line's automatic train control (ATC) is composed of automatic train protection (ATP) which ensures safe operations, automatic train operation (ATO) which controls the automatic operations, and automatic train supervision (ATS) for overall command, monitoring and recording of the system.[36] To reduce equipment mass on the train, the onboard ATP and ATO systems are integrated into one unit, although for safety reasons, the function and control logic of the ATP and ATO systems remain independent.[54] These subsystems are connected via LAN and managed by a computer-based interlocking (CBI) system that oversees traffic safety of the APM.[55][56]

The power system of the SPLRT includes a 22 kV AC power intake and distribution network, a 750V DC traction power system, and a 400V AC system for station services. Power is supplied via two 22kV AC feeders from the North East line to improve reliability and take advantage of the 66kV tariff. The AC supply is distributed through a closed ring network to prevent power disruptions during single outages. At each station, the AC supply is stepped down to 400V AC using service transformers for mechanical and electrical needs. Traction power substations (TPSS) further step down the 22kV AC to power rectifiers that convert it to 750V DC for train operations. Each TPSS is equipped with an inverter system to return excess energy from regenerative braking back to the 22kV distribution network. In 2004, the SKLRT had three traction power substations (TPSS), with one on standby to maintain operations during outages;[57] it presently has five operational substations, which will increase to eight with the planned expansion of Sengkang Depot.[58]

Station facilities

[edit]
Platform barriers and a fire phone on Sumang LRT platforms

All Punggol LRT stations are equipped with lifts connecting passengers from the ground level to the station concourse, and from the concourse to the platform level. Each station also has at least one wider faregate for wheelchair users and tactile flooring to guide the visually-impaired from the ground floor to the platforms.[59][60] The stations are also equipped with fire extinguishers and fire phones. Emergency stop buttons on both sides of the station platform, when activated, cut off traction power supply and halt incoming trains.[49]

Fixed platform barriers installed by Chee Yam Contractor are intended to prevent commuters falling to the tracks.[61][62] However, the barriers lack doors and instead have fixed openings for boarding, as the limited space on LRT platforms cannot accommodate the power, communications, and signal control systems required for platform screen doors.[62][63]

To enhance safety, SBS Transit has implemented the VAnGuard track intrusion detection system on the SPLRT.[64] Using video analytics and artificial intelligence, the system monitors footage of tracks and platforms to identify individuals or objects on the tracks.[65] When an intrusion is detected, operations control centre staff can press the emergency stop button to halt services on a specific loop. The system also triggers an alarm when intruders or foreign objects are detected. In addition to track intrusions, the system can spot unattended items on station platforms, allowing staff to provide assistance or undertake security precautions.[64]


Incidents

[edit]
  • On 23 March 2024, a 33-year-old woman by the name of Madam Wong Soon Heng was found dead at Cove station along the Punggol East LRT loop.[66]
  • On 9 June 2024, a signalling fault on the Sengkang LRT and Punggol LRT lines caused services to be suspended from the first trains around 5.45 am until 10.12 am.[67]

Notes and references

[edit]

Notes

[edit]
  1. ^ Under contract 810D[41]

Citations

[edit]
  1. ^ "Land Transport DataMall". mytransport.sg. Archived from the original on 21 August 2020. Retrieved 20 August 2020.
  2. ^ Hiroyuki Mochidome; Masahisa Masukawa; Yasuyuki Suzuki; Makoto Kashiwa; Shinichi Sadamitsu; Hiroyuki Kouno (June 2003). "Automated People Mover System 'Crystal Mover' for Singapore's LTA" (PDF). Technical Review. 40 (3). Mitsubishi Heavy Industries, Ltd. Archived (PDF) from the original on 1 July 2016. Retrieved 26 June 2016.
  3. ^ "Kyosan Corporate Report 2018". 2018. p. 19 to 20. Archived from the original on 16 June 2020. Retrieved 16 June 2020.
  4. ^ "Appointment of operator for the North East MRT line". NAS. 20 May 1999. Archived from the original on 23 November 2019. Retrieved 22 November 2019.
  5. ^ "SBS to run North-East line Tibs to merge with SMRT". The Straits Times (retrieved from NLB). 21 May 1999. Archived from the original on 6 October 2019. Retrieved 6 October 2019.
  6. ^ "Speech By Mr Yeo Cheow Tong At The Official Opening Of Punggol LRT On 29 January 2005". mot.gov.sg. Archived from the original on 1 October 2020. Retrieved 25 April 2020.
  7. ^ "Punggol LRT completed". Today. 2 December 2004.
  8. ^ "Punggol LRT to open on 29 Jan". Today. 28 January 2005.
  9. ^ "Selected stops for Punggol LRT". The New Paper. 11 January 2005.
  10. ^ a b "Punggol West LRT System to Commence Passenger Service and North East line to Add More Train Trips". SBS Transit. 18 June 2014. Archived from the original on 22 June 2014. Retrieved 29 June 2014.
  11. ^ Soh, Therese (8 May 2024). "Teck Lee LRT station to open near upcoming SIT campus in Punggol". The Straits Times. ISSN 0585-3923. Retrieved 11 May 2024.
  12. ^ "Teck Lee LRT station will open to improve connectivity to SIT's Punggol Campus: LTA". CNA. Retrieved 11 May 2024.
  13. ^ "Singapore's Lost Railways Hunt - The Unfinished Punggol North LRT". YouTube. En Garde Post. 2 August 2023. Retrieved 15 August 2023.
  14. ^ "2-car System for Sengkang Punggol LRT by 2016; Improvements to Choa Chu Kang LRT station". Land Transport Authority. 31 October 2012. Archived from the original on 22 October 2013. Retrieved 12 October 2013.
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  24. ^ "All Sengkang-Punggol LRT stations to get track intrusion detection system in 2024". Straits Times. 26 February 2024.
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  30. ^ "Sam Kee station on Punggol LRT System to open for Passenger Services". SBS Transit. 18 February 2016. Archived from the original on 1 March 2016. Retrieved 18 February 2016.
  31. ^ a b "LTA | News Room | News Releases | Joint News Release by the Land Transport Authority (LTA) & SBS Transit - Commencement of Two-Car Operations on Punggol LRT East Loop & Opening of Punggol Point LRT Station on 29 December 2016". lta.gov.sg. Archived from the original on 5 February 2020. Retrieved 5 February 2020.
  32. ^ "Opening of Samudera Station on Punggol West LRT Loop". SBS Transit. 20 March 2017. Archived from the original on 9 September 2017. Retrieved 8 September 2019.
  33. ^ "Teck Lee LRT station to open on Aug 15; trains on Sengkang-Punggol line to double". CNA. Retrieved 31 July 2024.
  34. ^ "First Train/ Last Train". SBS Transit.
  35. ^ Mochidome & Masukawa 2003, p. 1.
  36. ^ a b c d Mochidome & Masukawa 2003, p. 2.
  37. ^ a b "LRT – Your Link to the MRT". Land Transport Authority. Archived from the original on 14 June 2004. Retrieved 18 January 2025.
  38. ^ a b "Mitsubishi Heavy Industries and Mitsubishi Corporation Receive Order for Design, Manufacture, Installation and Commissioning of Singapore Light Rapid Transit Capacity Expansion – Vehicles and Electrical and Mechanical Systems for Sengkang and Punggol LRT Systems (C810A)". Mitsubishi Heavy Industries. 22 May 2013. Archived from the original on 4 March 2016. Retrieved 25 November 2015.
  39. ^ Tan, Christopher (24 December 2015). "2-car trains roll out on Sengkang LRT". The Straits Times. Archived from the original on 27 November 2020. Retrieved 18 January 2025.
  40. ^ Tan, Christopher (9 September 2016). "Hairline cracks found on 11 Sengkang-Punggol LRT trains". The Straits Times. Retrieved 18 January 2025.
  41. ^ Annual Report 18/19 (PDF) (Report). Land Transport Authority. p. 61. Archived from the original (PDF) on 20 December 2020. Retrieved 23 January 2025.
  42. ^ a b c "LTA Awards Contracts for New Trains and Depot Expansion for Sengkang-Punggol LRT". LTA. 15 February 2022. Retrieved 18 January 2025.
  43. ^ "MHIENG Receives Order for Project to Enhance Capacity of Sengkang-Punggol Light Rapid Transit System in Singapore – Strengthening the Safe and Smooth Transport Structure in the Sengkang and Punggol Districts". Mitsubishi Heavy Industries. 17 February 2022. Retrieved 18 January 2025.
  44. ^ a b "8 new two-carriage trains to be added to Sengkang-Punggol LRT line". The Straits Times. 9 May 2023. Retrieved 18 January 2025.
  45. ^ "MHI Receives Follow-up Order for 8 Two-Car Trains for Sengkang-Punggol LRT (SPLRT) – Additional 16 Cars to Boost Capacity of SPLRT Serving Sengkang and Punggol Districts". Mitsubishi Heavy Industries, Ltd. 9 May 2023. Retrieved 18 January 2025.
  46. ^ Loi, Esther (25 November 2024). "First 2 new trains for Sengkang-Punggol LRT arrive in Singapore, will enter service in Q3 2025". The Straits Times. Retrieved 21 January 2025.
  47. ^ a b c Mochidome & Masukawa 2003, p. 9.
  48. ^ a b c Mochidome & Masukawa 2003, p. 3.
  49. ^ a b "LRT: Safety Tips". SBS Transit. Archived from the original on 16 August 2017. Retrieved 19 January 2025.
  50. ^ Mochidome & Masukawa 2003, p. 8.
  51. ^ "Annex A: Location Map and Artist" (PDF). Land Transport Authority. Retrieved 18 January 2025.
  52. ^ Lee, Nian Tjoe (15 February 2022). "LTA awards $596m contracts for trains and depot expansion on Sengkang-Punggol LRT system". The Straits Times. Retrieved 18 January 2025.
  53. ^ Kyosan Electric n.d., pp. 4, 11.
  54. ^ Mochidome & Masukawa 2003, p. 6.
  55. ^ Kyosan Electric n.d., p. 4.
  56. ^ "全体システム構成図" (in Japanese). Kyosan Electric. Archived from the original on 14 August 2004. Retrieved 18 January 2025.
  57. ^ Thong, T.L. Melvyn; Yeo, Kok Beng; Chia, Song Khoon (2004). Aspects of testing and commissioning of power systems for RTS system with Sengkang LRT as case study. Vol. 2. IEEE. pp. 1880–1885. doi:10.1109/ICPST.2004.1460308. ISBN 978-0-7803-8610-5.
  58. ^ "New Two-car Trains for Sengkang-Punggol LRT". Land Transport Authority. 5 February 2021. Archived from the original on 28 August 2021. Retrieved 22 January 2025.
  59. ^ "LRT: Station Facilities". SBS Transit. Archived from the original on 16 August 2017. Retrieved 19 January 2025.
  60. ^ "Facilities Provided for People with Disabilities in MRT/LRT Stations" (PDF). Building and Construction Authority. Archived from the original (PDF) on 16 May 2011. Retrieved 1 November 2012.
  61. ^ "C8123 – Design & Build Fixed Barriers for Light Rail Transit Stations". Chee Yam Contractor Pte Ltd. Archived from the original on 19 January 2025. Retrieved 20 January 2025.
  62. ^ a b Tan, Christopher (21 October 2015). "Platform barriers at all LRT stations by 2018 to prevent falls". The Straits Times. Archived from the original on 1 January 2020. Retrieved 20 January 2025.
  63. ^ Kok, Yufeng (10 May 2023). "2 deaths, 1 injury in last decade from falls on LRT tracks". The Straits Times. Retrieved 20 January 2025.
  64. ^ a b Yap, Gracia (24 February 2024). "All Sengkang-Punggol LRT stations to get track intrusion detection system in 2024". The Straits Times. Retrieved 20 January 2025.
  65. ^ "Driving Workplace Safety Forward: SBS Transit Unveils New Innovative Technologies at the Rail Safety Symposium – Annex" (PDF). SBS Transit. Retrieved 20 January 2025.
  66. ^ "33-year-old woman found dead on LRT track at Cove station in Punggol East". The Straits Times. Archived from the original on 13 August 2024. Retrieved 31 January 2025.
  67. ^ "Punggol-Sengkang LRT service resumes after 4-hour disruption on Sunday morning". The Straits Times. 9 June 2024. Retrieved 9 June 2024.

Sources

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[edit]
Wikimedia Commons has media related to Light Rail Transit#Sengkang/Punggol.
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