NSW TrainLink is a train operator of passenger services outside the metropolitan area of Sydney in New South Wales. The network is divided into two tiers; intercity – a commuter-based rail network centred on the Greater Sydney area, and regional – long distance and interstate services. The network is served by a fleet of double-deck electric multiple units and single-deck diesel trains. For stations within the Sydney metropolitan area and shared with Sydney Trains, see List of Sydney Trains railway stations.