Outdoor advertising consists of three principal segments: advertising on Street Furniture (“Street Furniture”), advertising on and in public transportation vehicles, stations and airports (“Transport”) and advertising on billboards (“Billboard”). Other outdoor advertising activities, such as advertising on shopping trolleys or in gas stations, are grouped together as “Ambient Media”.

Billboard is the most traditional and continues to be the most utilized form of outdoor advertising. The most recently developed is advertising on Street Furniture: bus shelters, free-standing information panels, large-format advertising panels and multi-service columns.