MTR Metro Cammell EMU (DC)

The Metro-Cammell EMU, also known as the M-Train or Modernisation Train, is the oldest type of electric multiple unit that operates on the MTR rapid transit railway system in Hong Kong. A total of 768 cars were built by Metro-Cammell, and its successor GEC-Alsthom, later known as Alstom, in England between 1977 and 1997, and refurbished from 1998 to 2001 by United Goninan, now UGL. The M-Train, along with the later C-Train, TML C-train, R-train and ex-KCR stock, has five sets of double-leaf sliding doors on both sides of each car to facilitate rapid boarding, as opposed to the plug doors of the K-Train and AdTranz-CAF trains. The trains operate primarily on the Tsuen Wan line and Island line but are also operating on the Tseung Kwan O line alongside newer rolling stock. Each car is 3,200 mm wide over body panel, and a service train has an acceleration of 1.0 m/s2 with a regenerative blend service brake and an emergency air brake at 1.4 m/s2. The maximum speed is 90 km/h, limited to 80 km/h in normal operation. The trains are fitted for driverless operation with a single train operator opening and closing doors and monitoring the route, and traction is mostly through GTO chopper control. Each carriage has 45 seats and can hold 268 standing passengers.