The impact of artificial vehicle sounds for pedestrians on driver stress.

  • Published: Ergonomics, 55(12), 1476-1486, 2012
  • Authors: Cottrell, N. D., & Barton, B. K.
  • Date Added: 06 Feb 2014
  • Last Update: 06 Feb 2014
  • Format: html

Objectives:

The impact of adding synthetic sound to low noise emission vehicles on driver stress was investigated by the University of Idaho.

Methodology:

Through physiological measures (galvanic skin response and heart rate variance) and self-report questionnaires (Short Stress State Questionnaire – SSSQ) researchers examined driver stress whilst operating a Nissan HEV with one of three sound profiles: no added warning sound, manual addition of warning sound via vehicle horn, and automatic addition of warning sound via Nissan VSP system.

Key Findings:

  • The study found that the automated VSP system was preferred by drivers, causing less stress than when reliant on a manual warning for pedestrians via the vehicle horn.

Keywords:

Stress, automation, vehicle noise, driving task, task demand.

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