The Toronto Transit Commission (TTC) : Plans to expand the rail network at an investment of over USD15 billion August 1, 2021 | TA/ TSO Focus Accounting for 85 per cent of all transit trips in the Greater Toronto Area (GTA), the Toronto Transit Commission (TTC) operates and maintains the local passenger transportation system in the city of ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password