Effects of vibration on occupant driving performance under simulated driving conditions

Azizan, M, Fard, M, Azari, M and Nakhaie Jazar, G 2017, 'Effects of vibration on occupant driving performance under simulated driving conditions', Applied Ergonomics, vol. 60, pp. 348-355.


Document type: Journal Article
Collection: Journal Articles

Title Effects of vibration on occupant driving performance under simulated driving conditions
Author(s) Azizan, M
Fard, M
Azari, M
Nakhaie Jazar, G
Year 2017
Journal name Applied Ergonomics
Volume number 60
Start page 348
End page 355
Total pages 8
Publisher Pergamon Press
Abstract Although much research has been devoted to the characterization of the effects of whole-body vibration on seated occupants' comfort, drowsiness induced by vibration has received less attention to date. There are also little validated measurement methods available to quantify whole body vibration-induced drowsiness. Here, the effects of vibration on drowsiness were investigated. Twenty male volunteers were recruited for this experiment. Drowsiness was measured in a driving simulator, before and after 30-min exposure to vibration. Gaussian random vibration, with 1-15 Hz frequency bandwidth was used for excitation. During the driving session, volunteers were required to obey the speed limit of 100 kph and maintain a steady position on the left-hand lane. A deviation in lane position, steering angle variability, and speed deviation were recorded and analysed. Alternatively, volunteers rated their subjective drowsiness by Karolinska Sleepiness Scale (KSS) scores every 5-min. Following 30-min of exposure to vibration, a significant increase of lane deviation, steering angle variability, and KSS scores were observed in all volunteers suggesting the adverse effects of vibration on human alertness level.
Subject Dynamics, Vibration and Vibration Control
Keyword(s) Drowsiness
Human vibration
Lane deviation
Speed deviation
Steering angle
DOI - identifier 10.1016/j.apergo.2016.12.020
Copyright notice © 2016 Elsevier Ltd
ISSN 0003-6870
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