The Toronto Transit Commission (TTC) is the public transport agency that operates bus, subway, streetcar, and paratransit services in Toronto, Ontario, Canada, some of which run into the Peel Region and York Region. It is the oldest and largest of the urban transit service providers in the Greater Toronto Area, with numerous connections to systems serving its surrounding municipalities. Established as the Toronto Transportation Commission in 1921, the TTC owns and operates four rapid transit lines with 75 stations, over 150 bus routes, and 9 streetcar lines. In 2021, the system had a ridership of 386,443,400, or about 1,889,100 per weekday as of the third quarter of 2022. The TTC is the most heavily used urban mass transit system in Canada.
