Public transportation passengers are a classic example of a captive audience. The more dynamic the signage content is, the higher the audience catch rate. Imagine screens on a bus that start displaying information about the next stop or perhaps a promotion for a restaurant just around the corner. The displays on trains, buses, ships and taxis should show not only regular advertising loops, but also highlight local architecture, geographic features and points of interest using a mix of video, audio and real time data via 3G and 4G networks and GPS location content triggering. This is all possible with Hansab on board digital signage systems.