https://en.wikipedia.org/wiki/Mass_Rapid_Transit_(Singapore)#Rolling_stock
https://en.wikipedia.org/wiki/Mass_Rapid_Transit_(Singapore)#Network_and_infrastructure
https://en.wikipedia.org/wiki/List_of_Singapore_MRT_and_LRT_rolling_stock#Future
https://en.wikipedia.org/wiki/Mass_Rapid_Transit_(Singapore)#Future_expansion
#/media/File:Singapore_MRT_Network_(1987-1990).svg){kind=link}