TFL extends ARL’s operating contract by two years, UK June 29, 2023 | Company News, Europe Company News, Europe News, News Transport for London (TfL) has extended the concession contract to operate London Overground inner-suburban rail services by Arriva Rail London (ARL) by an additional two years. A deed of amendment to... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password