Studying driver attention and behaviour for three configurations of GPS navigation in real traffic driving

Global Positioning System (GPS) navigation systems were amongst the top selling consumer technologies in 2008 and research has indicated that such technologies could affect driving behaviour. In this paper, we study how different output configurations (audio, visual and audio-visual) of a GPS system affect driving behaviour and performance. We conducted field experiments in real traffic with 30 subjects. Our results illustrated that visual output not only causes a substantial amount of eye glances, but also led to a decrease in driving performance. Adding audio output decreased the number of eye glances, but we found no significant effects on driving performance. Although the audio configuration implied much fewer eye glances and improved driving performance, several participants expressed preference for the audio/visual output.

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