Interchange station

An interchange station is a train station for more than one railway route in a public transport system that allows passengers to change from one route to another.

Transfer on the same platform
It means that passengers can leave on the same platform after getting off the bus and wait for the transfer to another route train. Since each heavy-duty railway line has its own dedicated platform, the same month is more common in the common line segment of different terminal trains in the same route. It is also common for LRT and tram stations to share the same platform on different platforms.
 * Promenade station for Circle Line, going to Marina Bay Extension or Dhoby Ghaut

Cross-platform transfer
It means that passengers can walk directly on the same floor and walk to the opposite platform.
 * Boston
 * Clocks Station
 * Singapore
 * City Hall MRT Station (NSL/EWL)
 * Raffles Place MRT Station (NSL/EWL)
 * Jurong East MRT Station (NSL/EWL)
 * Tanah Merah MRT Station (EWL)
 * Bayfront MRT Station (CCL/DTL)
 * Timothy North
 * Album Station

Upper and lower transfer
It means that passengers must use stairs, escalators or lifts to go to the subsequent platform.
 * Singapore
 * HarbourFront MRT Station (NEL/CCL)
 * Chinatown MRT Station (NEL/DTL)
 * Paya Lebar MRT Station (CCL/EWL)
 * Bishan MRT Station (NSL/CCL)
 * Buona Vista MRT Station (EWL/CCL)
 * MacPherson MRT Station (CCL/DTL)
 * Promenade MRT Station (CCL/DTL)
 * Timothy North
 * Jeremy South Station (Downtown Line/Jeremy Line)
 * Daniel South Station (Downtown Line/Daniel Line)
 * Staircase Station (Downtown Line/East West Line/North South Line)
 * Shoes Central Station (East West Line/Ernest's Computer Line/Daniel Line/Jeremy Line)
 * Fulton Street Station (Downtown Line/Daniel Line/Jeremy Line)

Lobby/channel transfer
It means that passengers must walk through a section of the platform to reach the other platform for transfer.
 * Singapore
 * Bugis MRT Station (EWL/DTL)
 * Botanic Gardens MRT Station (CCL/DTL)
 * Serangoon MRT Station (NEL/CCL)
 * Outram Park MRT Station (EWL/NEL)
 * Dhoby Ghaut MRT Station (NSL/NEL/CCL)
 * Expo MRT Station (CGL/DTL)
 * Little India MRT Station (NEL/DTL)
 * Timothy North
 * South Bay Integrated Hub

Out-of-station interchanges (OSI)
It means that passengers must leave the paid area of the station and walk to another station.