Mass Rapid Transit (Singapore MRT)

constitutes the bulk of the railway network in Singapore, spanning - with the exception of the forested core and the island's rural northwest - the length and width of the city-state's main island.[note 10] The first section opened on 7 November 1987, and the network has since grown rapidly in accordance with Singapore's aim of developing a comprehensive rail network as the backbone of the country's public transportation system, with an average daily ridership of 3.384 million in 2019, compared to 4.099 million for the bus network in the same period.

Singapore's MRT infrastructure is built, operated, and managed in accordance with a regulatory framework called the New Rail Financing Framework (NRFF), in which the lines are constructed and the assets owned by the Land Transport Authority (LTA), who allocates operating concessions to two for-profit private corporations, namely SMRT and SBS Transit. Both are responsible for asset maintenance on their respective lines. These operators also run bus and taxi services, thus facilitating the full integration of public transport services.