Punggol LRT line

The Punggol LRT line is a elevated automated guideway transit line in Punggol, Singapore. The driverless system consists of 15 stations on two loops, with Punggol station serving as the interchange for both loops and linking the line to the North East Line on the Singapore MRT. It is the third Light Rail Transit line in Singapore and the second LRT line to be operated by SBS Transit.
The PGLRT was conceived as part of the Punggol 21 development plan announced by prime minister Goh Chok Tong in 1996. Construction of the LRT line began in June 2000 and was completed in June 2004, and the Land Transport Authority transferred operations to SBS Transit in December that year. Five of the East Loop stations began operations on 29 January 2005; Oasis station subsequently opened in 2007 and Damai station opened in 2011. The West Loop commenced operations on 29 June 2014, with Teck Lee station being the last to open, on 15 August 2024.
The line utilises the Kyosan Automated People Mover fixed block signalling system and Mitsubishi Heavy Industries's Crystal Mover APM vehicles. Two-car operations were introduced in December 2016 to accommodate increased ridership. Between 2018 and 2022, the PGLRT underwent renewal works to improve reliability. A new fleet of 25 two-car APMs entered service in 2025, replacing 25 one-car trains and half of the 16 two-car trains in the existing fleet.

History

Planning and construction

At the launch of the Punggol 21 housing concept in August 1996, prime minister Goh Chok Tong announced plans for a light rail system in Punggol. According to Mohinder Singh, the planning director of the Land Transport Authority, the LRT system was not part of the original 1991 Urban Redevelopment Authority Concept Plan, but was later jointly developed by the Housing Development Board, URA, and LTA during the planning of Punggol 21. The Sengkang and Punggol LRT systems were planned in tandem, with these agencies collaborating to integrate transport and housing for optimal service. In July 1998, communications minister Mah Bow Tan confirmed the government's decision to proceed with the Punggol LRT system, with 19 stations planned on the route.
The contract for the design and construction of the SPLRT was awarded to a joint venture for S$656 million. The joint venture comprised Singapore Technologies Industrial Corporation, Mitsubishi Heavy Industries and Mitsubishi Corporation. On 20 May 1999, SBS Transit was appointed to operate the Punggol LRT along with the North East Line and the Sengkang LRT line.
Construction of the Punggol LRT line began in June 2000 and was completed in June 2004. Due to limited funding from the 1997 financial crisis and low projected ridership, the SPLRT was initially constructed for single-car operations, even though it had been designed for two. Nevertheless, provisions were made for future conversion to two-car operations during the expected equipment replacement cycle, which was expected to occur within 15 to 20 years. The LTA conducted tests on the line before handing it over to SBS Transit in December 2004 for additional trial operations. SBS Transit announced that the East Loop would open first as the West Loop served a less populated area of Punggol at that time.

Stations opening

Date	Project	Description
29 January 2005	East Loop	East Loop opened for uni-directional operation.
15 June 2007	East Loop	Oasis opened.
20 June 2011	East Loop	Damai opened. Bidirectional services commenced on the East Loop.
29 June 2014	West Loop	West Loop opened for uni-directional operation.
	West Loop	Sam Kee opened.
29 December 2016	West Loop	Punggol Point opened.
31 March 2017	West Loop	Samudera opened.
29 September 2018	West Loop	Bidirectional services commenced on the West loop throughout the day.
15 August 2024	West Loop	Teck Lee opened.

On 10 January 2005, SBS Transit confirmed that the East Loop would open on 29 January, with the exception of the Oasis and Damai stations. The opening ceremony on the day itself was officiated by transport minister Yeo Cheow Tong. Early ridership remained low, especially due to the SARS outbreak. The East Loop initially operated unidirectional services in the peak flow direction. Morning services from 5:20am to 3:00pm ran anti-clockwise from Kadaloor to Punggol, while evening services from 3:00pm to 12:35am operated clockwise from Punggol to Kadaloor. After requests by residents to open Oasis station, the station opened on 15 June 2007. Damai station opened on 20 June 2011 and bidirectional services commenced on the East Loop.
The West Loop began operations from 29 June 2014 with the opening of Nibong, Sumang and Soo Teck stations. The West Loop initially operated unidirectional services at a frequency of 7 to 8 minutes, with morning services running from Nibong to Punggol, and evening services running from Punggol to Nibong via Soo Teck. Sam Kee station opened on 29 February 2016 to serve the Punggol Waterway Park and SAFRA Punggol Clubhouse.
Punggol Point station opened on 29 December 2016. Samudera station opened on 31 March 2017 to serve Marina Country Club. Bidirectional services on the West Loop commenced on 29 September 2018 in response to increased ridership. In May 2024, CNA reported that a post on the Singapore Institute of Technology website had mentioned Teck Lee station was scheduled to open in August. However, the information was later removed. The LTA later clarified that the planned opening of Teck Lee station was part of its broader efforts to improve public transport connectivity for students in anticipation of the upcoming SIT campus in Punggol. As announced by the LTA on 31 July, Teck Lee station opened on 15 August 2024.

Improvements

On 31 October 2012, the LTA announced plans to increase passenger capacity of the SPLRT to cater to increased ridership. The upgrading works involved retrofitting 16 of the 41 one-car trains for two-car operations while purchasing 16 additional cars. After tests for two-car operations on the Punggol LRT began on 5 December 2016, two-car operations officially commenced on the East Loop from 29 December.
On 15 December 2017, the LTA announced plans to renew and upgrade the SPLRT to enhance its operational reliability. The works included replacing the power rail and its assemblies, along with conducting maintenance on the signalling switch machines and cables. Additionally, the crossheads supporting the viaducts were to be reinforced and the viaduct bearings replaced, following the discovery of cracks on the crossheads during routine inspections.
The maintenance works took place on selected Sunday mornings from 14 January to 25 February 2018. On these days, the affected loops ran unidirectional services from 5:30am to 7:00am. Unidirectional services remained in operation on Sunday mornings from 4 March to 29 April due to the extension of maintenance works on the SPLRT. These works involved replacing the power rail and power rail assemblies, as well as carrying out preventive maintenance on the signalling cables. Rectification works on the concrete plinths and elevated slabs were conducted on Sunday evenings between 27 May and 7 October. These works involved breaking up the existing concrete plinths, realigning the finger joints, and recementing them into position. Maintenance works during service hours continued in 2020, 2021, and 2022. On 9 June 2024, the signalling system's power supply failed during upgrading works. As a result, no trains could be launched on that morning, with services only resuming at 10:12am.
On 5 February 2021, the LTA announced plans to purchase 17 two-car trains for the SPLRT, which were expected to be delivered from 2024 to 2027. The Sengkang Depot would also be expanded to to ensure additional capacity and maintenance space for the new trains. The depot expansion also included the construction of two new reception tracks to reduce train launching time. In February 2022, the contract for the depot expansion was awarded to Sato Kogyo Pte Ltd for S$157 million, and the contract for the new fleet of trains was awarded to Mitsubishi Corporation for S$439 million.

Network and operations

Route and service

The Punggol LRT line is a fully elevated automated guideway transit line, with a route length of. It is coloured grey on official maps. On dynamic passenger information displays and static signs on the LRT platforms, yellow indicates the east loop, and red indicates the west loop. The two loops of the PGLRT have been described as a pair of "butterfly wings" that converge at Punggol station, which connects the LRT to the North East Line and the future Cross Island Line on the Singapore MRT.
On the East Loop, the line heads south before curving southeast and running along the median of Punggol Field. After Coral Edge station, the line turns northwards along Punggol East to Riviera before turning west to Kadaloor. The loop continues along Punggol Drive before turning south toward Punggol station.
On the West Loop, the line heads north to Sam Kee station before crossing Punggol Waterway. It runs along Sentul Walk before turning west toward Punggol Point station. The line continues along Punggol Way as it turns south after Samudera station. Between Nibong and Sumang, the loop crosses the Punggol Waterway once more, and after Soo Teck station, the line turns east and north back to Punggol station. A spur connects the PGLRT to the Sengkang LRT line across the Tampines Expressway.
The line operates between 5:18am and 12:40am daily. The PGLRT is operated by SBS Transit. Since 2018, the PGLRT has been part of the New Rail Financing Framework. Previously, the operator had to bear the cost of maintaining and upgrading trains and signalling. Under the NRFF, the LTA and SBS Transit share the profits and financial risks in operating the line and the LTA will take control of its operating assets on 1 April 2033. SBS Transit operate the line under a 15-year licence which will expire on 31 March 2033.