Ottawa Transportation Commission was the public transit operator for the city of Ottawa from 1948 until the creation of OC Transpo in 1973. OTC took over streetcar operations from the Ottawa Electric Railway Company, but they were gradually abandoned for trolley bus and bus operations. Some streetcars were sold to the Toronto Transit Commission. OC Transpo is the urban transit service of the City of Ottawa, Ontario, Canada. An integrated hub-and-spoke system of services is available consisting of: (1) regular buses travelling on fixed routes in mixed traffic, typical of most urban transit systems; (2) a bus rapid transit (BRT) system a high frequency bus service operating on the transitway a network of mostly grade-separated dedicated bus lanes within their own right-of-way and having full stations with Park & Ride facilities further supported by on-road reserved bus lanes and priority traffic signal controls.