Siemens Mobility to supply signalling system for Johor Bahru–Singapore RTS Link August 19, 2021 | Asia Pacific News Siemens Mobility has secured a contract from RTS Operations Pte Ltd (RTSO) to design, install, and commission a communications-based train control (CBTC) signalling system on Johor Bahru–Singapore Rap... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password