In Atlanta, Georgia, trolleybuses, generally called trackless trolleys there, were a major component of the public transportation system in the middle decades of the 20th century, carrying some 80 percent of all transit riders[1] during the period when the system was at its maximum size. At the end of 1949 Atlanta had a fleet of 453 trolleybuses, the largest in the United States,[1][2] and it retained this distinction until 1952, when it was surpassed by Chicago.[2]