STM contracts Thales for the CBTC system, Canada March 19, 2024 | Company News, News, North America Company News, North America News Société de transport de Montréal (STM) has contracted Thales for a communications-based train control (CBTC) system for the Montreal Métro Blue Line. Thales will deploy the SelTrac signalling system a... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password