Singapore’s Cross Island Line (CRL) is a high-capacity MRT line under construction that will run east–west from Changi to Pioneer, passing through planning areas including Pasir Ris, Hougang, Serangoon, Ang Mo Kio, Bukit Timah, Clementi, Jurong East, and Boon Lay. First announced on 17 January 2013, the line was planned to help relieve congestion on the existing East–West Line. As Singapore Cross Island Line construction progresses, the project is also part of a wider infrastructure pipeline highlighted by industry reports that link future construction demand to large rail corridors and related station-area development.
A visible milestone arrived when the first trainset for the upcoming line reached Singapore, following a Land Transport Authority (LTA) announcement dated 31 May and later reported by Railway Gazette International. The rolling stock is tied to a June 2023 contract worth S$589 million, awarded to a consortium formed by CRRC Qingdao Sifang and Singapore CRRC Sifang Railway Vehicles Service. The agreement covers 44 six-car trainsets for the fully underground line, includes an option for 11 additional trainsets, and specifies a design that can be extended to eight cars in the future. Design and manufacturing are taking place in Qingdao, China.
What the New Trains and Systems Reveal About Project Ambition
The trains are described as fully automated and will use a 1.5 kV DC overhead conductor rail system. LTA said the 1.5 kV DC approach is expected to improve energy efficiency compared with the 750 V DC third rail system used on other lines. Each car will have five doors on each side, and inter-car gangways will be 1,600 mm wide, compared with 1,400 mm gangways on existing trains. The trains will also be equipped with smart condition monitoring and diagnostic systems designed to detect potential faults early, and some units will include an automated track and overhead electrification inspection system.
Delivery and testing are only one side of the build-out. On the civil works front, LTA awarded a contract in December 2022 for the design and construction of bored tunnels between Fairways Drive and Sin Ming Walk to a joint venture between Obayashi Corporation and Shanghai Tunnel Engineering Co (Singapore) Pte Ltd for $758 million. Separately, the construction market backdrop underscores why rail programs matter. One report projects the Singapore construction market at USD 26.34 billion in 2026, rising to USD 34.31 billion by 2031, while forecasting infrastructure as the fastest-growing segment at a 5.72% CAGR to 2031, reflecting long-cycle port, rail, and airport expansions.
The CRL’s timeline is defined by phases. Phase 1 spans 29 km from station CR2 Aviation Park to CR13 Bright Hill and is scheduled to open in 2030. It will include 12 stations serving residential and industrial areas such as Loyang, Tampines, Pasir Ris, Defu, Hougang, Serangoon North, and Ang Mo Kio. Phase 2 is under construction and is expected to open in 2032, adding 15 km and six stations. A 7.3 km Punggol Extension, also under construction, is set for completion by 2032 and is intended to connect trips between eastern areas like Pasir Ris and Tampines North and northeastern areas such as Punggol and Sengkang.
When is Cross Island Line Phase 1 scheduled to open, and how long is it?
What is included in the S$589 million train contract for the line?
What power system will the new fully automated trains use?
Which major tunnel package has been awarded for the project, and what is its value?
What does Singapore Cross Island Line construction include beyond Phase 1?
