Société de transport de Montréal (STM): Focus on 100 per cent electrification and network expansion August 12, 2024 | TA/ TSO Focus Current operations Société de transport de Montréal (STM) / Montreal Transit Corporation operates metro, city bus, and paratransit services in Montreal. Currently, the metro has four operational lines... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password