The Changi Airport Branch Line will undergo conversion from the East West Line (EWL) to become part of the Thomson-East Coast Line (TEL). Three stations—Tanah Merah, Expo, and Changi Airport, will be modified to allow TEL trains to operate on them, in line with the Land Transport Authority’s initiatives outlined in the Land Transport Master Plan 2040.
Modification works to convert the East West Line section between Tanah Merah and Changi Airport will commence in 2025, according to delivery dates specified in Contract T3206. These works are expected to be completed by 2031.
By 2040, the Thomson-East Coast Line will be extended beyond its current terminus at TE31DT37Â Sungei Bedok station to CG2Â Changi Airport. Called the Thomson-East Coast Line Extension (TELe), it will pass through the future Terminal 5 and eventually connect to Expo and Tanah Merah stations, forming a continuous line between Woodlands North and Tanah Merah.
Initial reporting in LTMP 2040
In May 2019, the Land Transport Master Plan 2040 announced the Thomson-East Coast Line Extension (TELe) linking Sungei Bedok Station to Changi Airport. This extension will traverse through the anticipated Terminal 5 and integrate with the segment between Tanah Merah and Changi Airport on the East-West Line, which is slated for conversion to become part of the TELe.
Besides establishing a direct rail link from Changi Airport to the City, the TELe will seamlessly connect Changi Airport to stations along the TEL up to Woodlands North. This connectivity will enable commuters to potentially transfer to and from the future Singapore-Johor Bahru Rapid Transit System Link.
Changi Airport Terminal 5 station will be an interchange station between the TEL and the Cross Island Line (CRL). An extension of the CRL from Aviation Park to Changi Airport T5 has yet to be formally announced, nor has the alignment of the TELe between Sungei Bedok and Changi Airport.
Tanah Merah Modification Project
Currently, the Changi Airport Branch Line operates as a shuttle train service between EW4CGÂ Tanah Merah and CG2Â Changi Airport along the East West Line, with only a single platform at Tanah Merah. A new platform is being constructed at Tanah Merah station for eastbound East West Line services, freeing up a second middle platform at Tanah Merah that will facilitate faster train turnarounds, allowing trains to arrive and depart at the station at shorter intervals.
Contract T315 – Addition and Alteration Works to Existing Tanah Merah Station and Existing Viaducts was awarded to Lum Chang Building Contractors Pte Ltd for S$325 million in October 2016.
Connection to East Coast Depot
When completed in 2026, East Coast Integrated Depot will serve the EWL, DTL and TEL under one roof. A single reception track was also built to connect the TELe with the East Coast Integrated Depot.
Project Challenges
The EWL and TEL utilize different rolling stock, signalling systems, and associated railway subsystems. Therefore, system modification works are required to enable TEL trains to operate on the existing EWL tracks.
Another challenge relates to the configuration of train doors. EWL trains are configured in six-car sets with four doors per car, whereas TEL trains are configured in four-car sets with five doors per car. Modifications or replacement of the existing platform screen doors will be necessary to accommodate this difference. Additionally, at Changi Airport station, the positioning of columns prevents TEL trains from opening all doors simultaneously. This may require implementing selective door operation, unless alternative solutions can be found to address this constraint.
Furthermore, the above-ground segments of the Changi Airport branch line introduce additional operational considerations for the TEL, which predominantly operates underground except for Mandai Depot, an open-air facility. These considerations may have already been addressed during the proposal of the T251 fleet for operation on the RTS Link.
Changi Airport Branch Modification Works
Modification works to the existing East West Line stations at Tanah Merah, Expo and Changi Airport would be done under Contract T3206 – Addition and Alteration to Changi Airport Line. The tender was called on 29 April 2024.
According to delivery dates specified, modification works are expected to commence in 2025, and are due for completion by 2031.
- East Coast Line Construction: T3206 – Conversion of the Changi Airport Line (erl-construction.blogspot.com)
- Preparatory work to connect Thomson-East Coast Line with Changi Airport to begin in 2025 | The Straits Times
TELe Civil Engineering Works
Contract T316 – Changi Airport Underground Infrastructure – involves the construction and completion of twin bored tunnels extending eastward from CG2 Changi Airport station towards CR1TExx Changi Airport T5 (final station name to be announced). This scope includes the construction of associated cross passages, launch shafts, underground infrastructure, low point sumps within the tunnels, and related ancillary works.
Shanghai Tunnel Engineering Co (Singapore) Pte Ltd (STEC) was awarded Contract T316 for S$321.7 million. In 2022, STEC’s website indicated a contract duration from October 2019 to September 2026. However, as of 2024, the website has been updated to reflect a revised timeframe spanning from 2019 to 2031.
Track Diagrams:
Future track diagrams are indicative only and subject to changes.
See Also
References
Yea! I also agreed for it. I won’t let CGL removed.
Not good idea to keep CGL. Just convert everything to TEL to reduce hassle of changing lines.
Also must revamp the stations to TEL standard.
Make a 6 platform Changi Airport Terminal 5 so the code will be CG3/CR1/TE32 and don’t convert the existing Changi Airport branch line to Thomson East Coast line.
Keep the CGL and extend the TEL only to Terminal 5, and extend the CGL to Terminal 5. Then, Changi T5 will be a 3 way interchange with the station code CG3/TE32/CR1
I agree. We should keep the CGL and TEL can extend only to Changi Airport T5, then CGL can extend from Changi Airport to Changi Airport T5 station.
I also agree with you. Passengers who want to get from Bayshore to Tanah Merah can take the TEL to Changi T5, then change to CGL and take it to Tanah Merah.
Train annoucement (CGL): Next station, Changi T5. Change at the next station for the Thomson-East Coast Line or the Cross Island Line. This train service will end at Changi T5.
Approaching Changi T5: This train service ends here. Thank you for travelling with SMRT.
TEL: Please do not lean against the train doors. Next station, Changi T5, Change at the next station for the Cross Island Line or the East West Line.
Why? The CGL is barely filled with passengers compared to the main line
Even making a loss, with 24 as the only bus route from Tanah Merah to Changi Airport with the cutback of 506 from Changi Airport in 2002, and the removal of the former 34 bus route that operated from Bedok to Changi Airport in 2002.
Possible TELe station codes:
Changi T5: TE32/CR1 (planned)
Changi Airport: TE33
Expo: TE34/DT35
Tanah Merah: TE35/EW4
CGL is permanently withdrawn.
Or change if Founder’s Memorial’s station code changes
TE32/CR1 is already confirmed on the map during the Virtual Exhibition.