By 1942 Surface Transportation System was operating one of the world's largest fleets of diesel-powered buses. In 1943, Third Avenue Railway System was renamed Third Avenue Transit System and had taken over direct operation of STS. After years of litigation regarding transit franchises and purchases of stock by board members, Victor McQuistion had taken control of the company by 1946, and implemented a plan to replace the remaining streetcar routes with buses. On November 10, buses replaced trolleys on the busy 59th Street crosstown line in Manhattan.