EFFECTS OF CELLULAR TELEPHONE USE ON DRIVER'S REACTION TIME AND SUBJECTIVE MENTAL WORKLOAD

The present study investigated the effects of cellular telephone use on driver's reaction time and subjective mental workload (SMWL) while drive a vehicle. The experiment was conducted on an expressway in Japan. Sixteen subjects drove an instrumented vehicle and followed a leading vehicle. Half of the subjects had experience in using a cellular telephone while driving. The cellular telephone with a hands-free system (HFS) was set on the dashboard in the experimental vehicle. The subjects performed the talking task and the operating task while driving. After the experiment, each subject provided subjective rating values in terms of SMWL. Independently of experience the average of driver's reaction time increased by 0.71 seconds under the talking task compared with that under the driving task. Also, SMWL of non-experienced group increased. The experience in using the cellular telephone while driving affected the reduction of mental workload, but did not affect the reduction of the reaction time. For the covering abstract see IRRD E102946.

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00781094
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 89-950073-2-X
  • Files: ITRD
  • Created Date: Jan 7 2000 12:00AM