Metro System, MRTC, Six-Car Units, Singapore

for Singapore Metro Rapid Transit MRT

Mass transit systems in Singapore
The public transportation system in Singapore consists of buses - including the "shuttle" buses for increasing capacity during rush hour - and of the suburban rail system. Car transport is used a great deal in the city as well as taxis.

The first 6 km section of the Singapore metro (Singapore Metro Rapid Transit/MRT) started operating with 5 stations in 1987 after 3 years between awarding of the contracts for the trackside equipment and stations and the vehicles. This took some of the pressure off the existing public transportation system. In 1988, an additional 19-km-long section was opened with 15 stations.

The MRT network of routes was built both in tunnels and on viaducts as well as depressed in cuttings. The tunnel in the center of the city was built to pass under the Singapore River. This decision was mainly based on commercial reasons, but technological requirements also played a part.


Singapore C651
Type of vehicle Bi-directional six-car train consisting of 4 motor cars and two non-powered trailer car
Maximum formation 2 x 3-car units
Wheel arrangement 2'2' + Bo'Bo' + Bo'Bo' + Bo'Bo' + Bo'Bo' + 2'2'
Track gauge 1,435 mm
Weight empty 214 t
Weight loaded (max. capacity) with 320 persons per car 323 t (109 t)
Maximum speed 90 kph
Traction system 750 V/-30%+20% DC via third rail
Traction motors 16 x 140kWdd enclosed-ventilated lateral drive
Gear ratio 5.94 : 1
Wheel diameter new/worn 850 mm/775 mm
Traction motor converter GTO pulse-width modulated inverter
Auxiliary voltage 110 V DC
1st service brake Self-excited, mixed service and resistor brake
2nd service brake Pneumatic compressed air wheel tyre block brake
Parking brake Compressed air pressure spring-loaded brake