Mass Rapid Transit (Singapore), History of the Mass Rapid Transit (Singapore), EZ-Link, CEPAS, Facilities on the Mass Rapid Transit (Singapore), Circle MRT Line, Nicoll Highway collapse, List of Circle MRT Line station names, Downtown MRT Line, Thomson MRT Line, Eastern Region MRT Line, Kawasaki Heavy Industries C151, Siemens C651, Kawasaki Heavy Industries, Alstom Metropolis C751A, Alstom Metropolis C830, Fares and ticketing on the Mass Rapid Transit (Singapore), Network for Electronic Transfers, Safety on the Mass Rapid Transit (Singapore), Security on the Mass Rapid Transit (Singapore)