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Rapid transit system

High-capacity public transportA Seoul Metro Class 2000 series 10-car EMU set 2x09 leaving Hanyang University StationA R211A train at 80th Street station of the New York City SubwayA test train of London Underground2024 Stock at Turnham Green on the Piccadilly lineA Sydney Metro Metropolis Stock approaching Kellyville.A Paris MetroMP 14 train at Châtelet on Line 14A S Train on the South Island Line on the Hong Kong MTR approaching Ocean ParkRapid transit, mass rapid transit (MRT) or rail rapid transit (RRT) and commonly referred to as metro, is a type of high-capacity public transport that is generally built in urban areas.

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