Until 1921, several private and publicly owned transport systems were established and ended up being merged into one another or abandoned. Electric streetcars were widely used in Toronto and surrounding settlements during the new century. After the establishment of the Toronto Transportation Commission (TTC) (predecessor of the Toronto Transit Commission (also having the acronym of TTC) until 1954), streetcar routes were taken over from predecessors in 1921. It ran bus routes by using motor buses for the first time in the city. The TTC also experimented the use of trolley buses from 1922 to 1925, operating a line on Merton Avenue and Mount Pleasant Road. Gray Coach, an intercity bus line by the TTC, began operation in 1927. As the coach service increased in ridership, the TTC built the Toronto Coach Terminal. By 1933, the TTC introduced the local bus and streetcar stop design, a white pole with a red band on the top and bottom. Between 1930 and 1948, the city replaced various TTC-operated radial railway routes extending to surrounding municipalities with bus routes.