Clear Channel Outdoor Holdings, Inc. operates as an out-of-home advertising company in the United States and Singapore. The company operates in two segments, America and Airports. It offers advertising services through billboards, including bulletins and posters, as well as spectaculars, which are customized display structures with videos, three-dimensional elements and moving parts; street furniture displays, such as advertising surfaces on bus shelters, kiosks, news racks, and other public structures; transit displays in rail stations and on buses, trains, and trams; and wallscapes, as well as advertising solutions to commercial and private airports. The company offers solutions, such as RADARView, an audience and campaign planning tool, which uses historical mobile location data; RADARC…