Mobile telephone simulator study

Handsfree mobile phone is not safer in traffic.

A VTI study performed in the driving simulator shows that using a mobile phone with a handsfree kit is no safer in traffic than using a hand-held mobile phone.

The study shows that the attention of drivers is negatively influenced by a telephone conversation, whether it is with a handsfree or hand-held mobile phone. The participants were however a lot more positive about using a handsfree than a hand-held phone while driving. They also had the impression that their driving performance was better when using a handsfree than a hand-held phone. This was in spite of the fact that the study does not show any differences in driving performance between handsfree and hand-held mobile phones.

From the standpoint of traffic safety, it was found that it is more unsafe to ring up with a mobile phone than to talk with a mobile phone. Drivers attempted to compensate for handling the mobile phone by slowing down, but found it difficult to drive without deviating from a straight

Two smaller experiments, involving reading SMS while driving and looking at a DVD film while driving, were also carried out. These two experiments ought to be extended so that more reliable conclusions may be drawn from them.


  • Traffic safety
  • ,
  • Mobile phone
  • ,
  • Driving (veh)
  • ,
  • Simulator (driving)
  • ,
  • Driver
  • ,
  • Behaviour
  • ,
  • Uppmärksamhet
  • ,
  • Driving aptitude
  • ,
  • Stress (psychol)
  • ,
  • Safety
Cover of VTI publication.
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  • Research area: Traffic safety
  • Published: 2004-11-01
  • VTI-code: M969A

VTI Publication M969A (258 pages, 2417 kB. English text with Swedish summary)

Price printed version:

300 SEK

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