Abstract
The present study aims to clarify how four different combinations of input and output resources affect driving performance, because usage of information devices based on non-visual and non-manual interface during driving is configured as distracter recently. The primary task consisted of following a lead vehicle at a constant headway while that vehicle changed speed according to a predefined rhythm. The secondary task, which involved using a surrogate user interface, consisted of four different tasks to assess interference with the driver’s attentional resource during driving. To achieve the objective, we conducted a field experiment on a test track using 14 participants. The results suggest that the smallest effects on driving-relevant metrics were for the combination of auditory stimuli and verbal response, and that the greatest effects were for the combination of visual stimuli and manual response.
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