The standard size is 3 x 8 . For quality banners digital printing on special banner material like Tyvek, wet strength paper is the only answer. Backdrops or banner put up just outside the retail outlets, exhibition booths, at the launch or event venue are generally digitally printed to attract maximum attention. In India Bus panels are either rear displays or painted side panels. The audience size differs from route to route.
Buses following the same route patterns develop frequency from repeated exposures.
Used to reach pedestrians and vehicular traffic in daylight hours. Taxi panels are double sided backlit signs affixed to the roof or printed displays in set frames affixed to the trunk. Mainly hand painted. Used to remind the brand names to vehicular traffic and pedestrians. Hoardings , kiosks in the circulating areas.