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CRRC Qingdao Sifang CR151
CRRC Qingdao Sifang CR151
	Exterior mockup of the CR151
	Interior mockup of the CR151
In service	2030 (Projected)
Manufacturer	CRRC Qingdao Sifang
Built at	Qingdao, Shandong, China
Constructed	2025 – 2030
Entered service	2030
Number under construction	264 Vehicles (44 Sets)
Formation	6/8 per trainset; DT–Mp–Mi+Mi–Mp–DT
Capacity	1920 passengers per 6-car train
Depots	Changi East
Lines served	CRL Cross Island Line
Specifications
Car body construction	Welded aluminium
Train length	138.5 m (454 ft 4+3⁄4 in)
Car length	23.65 m (77 ft 7+1⁄8 in) (DT); 22.8 m (74 ft 9+5⁄8 in) (Mp/Mi);
Width	3.2 m (10 ft 6 in)
Height	3.7 m (12 ft 1+5⁄8 in)
Doors	1,450 mm (57+1⁄8 in), 10 per car, 5 per side
Maximum speed	90 km/h (56 mph) (service)
Electric system(s)	1,500 V DC Overhead conductor rail
Current collector(s)	Pantograph
Safety system(s)	Siemens Trainguard Sirius moving block CBTC ATC under ATO GoA 4 (UTO)
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge

The CRRC Qingdao Sifang CR151 is a type of electric multiple unit to be built for the Cross Island Line of Singapore's Mass Rapid Transit (MRT) system. The contract was awarded to CRRC Sifang, a consortium of CRRC Qingdao Sifang Company and Singapore CRRC Sifang Railway Vehicles Service, and as of June 2023 the Land Transport Authority (LTA) has purchased 44 six-car trains. They will be delivered from 2027, before the opening of the line's first phase in 2030.^[2]

Tender

The tender for trains under the contract CR151 was closed on 23 September 2022 with four bids. The LTA has shortlisted all of them and the results has been released. The contract includes the option of purchasing up to 11 more trains.^[2] The tender results were published on 14 June 2023 on the Singapore government's GeBIZ platform:^[3]

S/N	Name of tenderer	Amount ($) (Option 3)
1	Alstom Transpot (S) Pte Ltd	919,461,500.00 (SGD)
2	Construcciones Y Auxiliar De Ferrocarriles, S.A.	1,032,961,078.00 (SGD) + 655,898,277.00 (EUR)
3	CRRC Qingdao Sifang Co., Ltd.	588,959,039.00 (SGD)
4	Hyundai Rotem Company	743,186,400.0000 (SGD)

Features

Each train car will have 10 doors per car (5 on each side), condition monitoring and diagnostic systems for early detection of potential equipment faults. Some trains will also be equipped with an Automated Track Inspection system to monitor the condition of the running rail and OCR in real time. Between train cars, the gangway width is at 1.6 metres (5 ft 3 in).^[4] Unlike most of the MRT lines in Singapore, these trains will draw power from a 1,500 V DC overhead conductor rail.^[2]