Characterization of the influence of vibrations on the vehicle occupant drowsiness

Although many studies have reported the effects of vibration on comfort of the seated human body, the effects of fatigue, and particularly drowsiness, are yet to be rigorously characterised. First, study approach was to identify the existence of drowsiness caused by vibration from the measurement of brainwave activity. Secondly, following the exposure to vibration, human performance was assessed by measuring the changes in reaction time (RT). As a summary, the significance of this research lies in its direct relevance to driver alertness and road safety as drowsiness in drivers is linked directly to traffic accidents. The novel contribution of this project is characterising the role of vibration, which our findings have identified vibration as an important source of driver drowsiness. This project also quantifies the contribution of vibration to psychomotor fatigue in drivers. The obtained results have direct relevance to the development of detectors that measure and monitor such drowsiness-inducing vibration in vehicle design. It also can then provide data to predict the resulting level of drowsiness and have applications not only in car manufacturing, but also in aerospace industry, public transportation, and road safety organizations. This will complement the existing ISO 2631-1 (effects of vibration on comfort) to extend these guidelines in assessment and establishment of thresholds and safe limits for drowsiness-inducing vibration.


  • English

Media Info

  • Pagination: 1 file

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Filing Info

  • Accession Number: 01602492
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ITRD, ATRI
  • Created Date: Jun 21 2016 10:21AM