One of the key considerations for any outdoor advertising campaign is the length of time the audience will have to view the ad. A roadside billboard has to convey its message in seconds, while other sites, such as station platforms, buses and taxis, may be studied for longer. Distance is also a factor. Roadside posters need to be simple, with clear images and as few words as possible.
Advertisements that will be seen for longer allow you to convey more information. Details of a specific promotion, a call to action and contact details can be included. However, a simple message and a clear identity are always essential. Colours should be bold and the ad should be easily visible from a distance. Humour, strong images and wordplay will make an impact and make your message more memorable.