Rolling Stock
The rolling stock of the Ampang Line consists of a fleet of 90 Adtranz standard-gauge trains manufactured by Walkers Limited, an Australian engineering company. The trains consist of electric multiple units, which draw power from the underside of a third rail installed alongside the track. All cars in each train are powered. The trains are manned, with driver cabs occupying the ends of the train.
The trains come in two trainset configurations. The first and most common variation is the six-car trainset, which consists of three sets of two EMUs (2+2+2) and occupies the maximum platform length of the lines' stations. Each of the two EMU sets at the front and rear consist of one driving car and one trailer car, while the two EMUs between are trailer cars. Each two EMU sets are not connected to other EMU sets in the train. The second variation is a four-car trainset, a more obscure configuration that consists of only two EMU sets (2+2) of one driving car and one trailer car at both ends. With only two-thirds the length and number of cars as the six-car variation. The 2+2 trainsets were once used in full in the service until the massive deployment of 2+2+2 trainsets.
Each car has 3 bogies, 2 power bogies and one articulated trailer for the centre bogie. The end cars, numbered 1101 to 1260 have driver cabs. Middle cars numbered 2201 to 2230 have a concealed driver control panel, enabling the car to be moved around the depot independently.
The train interiors are simple and basic. There are no individual seats, only longitudinal bench seating on either side of the train, surfaced in metal, while spaces near the connecting ends of the cars are provided for passengers who use wheelchairs and other assistive devices. There is a large amount of floorspace for standing passengers.
The rolling stock has remained relatively unchanged since its introduction in 1996.
In 2009, together with the display on the proposed Puchong extension of the line, it was announced that the rolling stock fleet would be expanded with 13 new trains.
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