Conversational Interfaces and Driving: Impact on Driving Behaviour and Attitude

I.-M. Jonsson (USA)


InVehicle Information System, Conversation, Older drivers, Driving performance, Attitudes, Driving Simulator


This study examines how the choice of voice in a conversational speech based vehicle information system affects driver attitudes, performance and safety. Thirty six participants from two age groups; eighteen between the ages of 55 and 75, and eighteen between the ages of 18 and 25, used a driving simulator in one of three scenarios: a conversational system with a young voice, a conversational system with an older adult voice, and no system at all. The results show that all drivers, regardless of age, were more willing to communicate with a young voice in the car, than with an old voice. This willingness to communicate had a detrimental effect on driving performance, especially for young drivers. Even though they were aware of the fact that they were driving worse, the younger drivers could not help but to talk instead of focusing on the task of driving.

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