The Alstom Metropolis C751A trains are Singapore's first rolling stock that uses Communication-Based Train Control (CBTC).
It is also the first generation of rolling stock for SBS Transit's North East Line and have been in passenger service since 20 June 2003.
There are 25 trains of six cars each, all of which are housed in Sengkang Depot.
Unique to the North East Line, the trains are powered through overhead catenary.
Alstom Metropolis C751A
North East Line
Built 2000 - 2002
25 trains of 6 cars each, numbered 7001/7002 to 7049/7050
Contract 751A for the design and building of the trains was awarded to french company Alstom Transport in 1998.
Utilising Alstom's Urbalis 300 CBTC system, the world's first radio CBTC system, the trains are fully automated and can run without any train attendant on-board.
25 trains of six cars each were bought for the 19.2km North East Line, which commenced service on 20 June 2003.
The Land Transport Authority awarded the contract for the Mid-Life Upgrade of all 25 C751A trains to CRRC Nanjing Puzhen at a cost of S$116.7 million. Works are scheduled to start in 1Q 2019 and are expected to be completed by 3Q 2024.
On top of the replacement of the interior fittings such as the seats, panels and floorings, a new condition monitoring system will also be installed. The trains' air-conditioning, ventilation and passenger information systems will also be upgraded, together with other mechanical and electrical systems and parts that needs to be repaired or replaced.
The C751A trains have a contrasting exterior livery: a dark background at the top and white at the bottom, with a strip of orange and purple band down the middle.
The front of the train is curved, giving it a more streamlined look.
The train numbers are displayed on an orange LED display at the top of the left windscreen.
Two rows of seats from the middle four cars are replaced with a standing area to provide more standing space.
Both ends of the train feature a viewing space and an emergency exit.
The viewing space allows passengers to have a view of the tunnel through the windscreen.
The emergency exit ramp will be deployed in an emergency.
Two wheelchair bays are located in the middle two cars of every C751A train at doors 9 and 16.
Overhead hand grips are positioned along the aisles of the train cabins to provide standing passengers with increased support.
Provide support for passengers boarding or alighting the trains and for passengers standing near the doors.
Yellow alert lights that are positioned above each door will light up when the doors are closing.
The Visual Passenger Information System shows useful travel information to passengers, such as the current and next train stations which the train will call at, and other useful travel messages.
The plate lists the companies involved in the manufacture of the train, and also the year it was built.
It is located at both ends of the train.
Additional metal strips were installed at the edge of the door, reducing the width of the platform gap.
This programme was experimented on train 029/030.
DT: Driving Trailer (unpowered); Mp/Mi: Motor car