Driving performance changes of middle-aged experienced taxi drivers due to distraction tasks during unexpected situations

Hyung Sik Kim, Mi Hyun Choi, Jin Seung Choi, Hyun Joo Kim, Sang Pyo Hong, Jae Hoon Jun, Gye Rae Tack, Boseong Kim, Byung Chan Min, Dae Woon Lim, Soon Cheol Chung

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

This study investigated the effects of distraction tasks-such as sending a text message with a cellphone and searching navigation with car navigation system-on the driving performance of 29 highly experienced taxi drivers in their 50 s. All participants were instructed to drive using a driving simulator for 2 min. while maintaining a constant distance from the vehicle in front and a constant speed. Participants drove without any distractions for the first minute. For an additional minute, they performed Driving Only or performed a task while driving (Driving + Sending Text Message or Driving + Searching Navigation). An unexpected situation, in which the participant had to stop abruptly due to a sudden stop of the preceding vehicle, occurred during this period. Driving performance during the unexpected situation was evaluated by car control variables, medial-lateral coefficient of variation and brake time, and by motion variables such as the jerk-cost function. Compared to Driving Only, jerk-cost function, medial-lateral coefficient of variation, and brake time increased during Driving + Sending Text Message or Driving + Searching Navigation.

Original languageEnglish
Pages (from-to)411-426
Number of pages16
JournalPerceptual and Motor Skills
Volume117
Issue number2
DOIs
StatePublished - Oct 2013

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