https://www.railway-technology.com/news/newssbs-begins-driverless-downtown-line-1-service-in-singapore-4175511/
SBS begins driverless Downtown Line 1 service in Singapore - Railway Technology
Feb 11, 2014 - SBS Transit has begun passenger service on the Siemens-equipped driverless underground metro line, Downtown Line 1 (DTL1), in Singapore.
downtown linesingapore railwaysbsbeginsdriverless