Definition of transit advertising

out-of-home advertising on transportation vehicles such as buses, taxicabs, subways, commuter trains, rapid transit trains, and ferries, as well as in transportation vehicle terminals. There are three major types of transit advertising: car cards found inside the vehicles in a fleet; outside posters, located outside the vehicles in a fleet; and station posters located in carrier terminals. Transit advertising is offered at relatively low cost, with cost per thousand approximating $.50 inside vehicles and $.10 to $.15 outside. Additionally, transit advertising reaches a mass audience with a high rate of repetition and can be geographically selective. Approximately $150 million is spent annually on transit advertising in more than 75,000 vehicles in approximately 400 urban markets.