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Driving without Awareness: Examination of the Phenomenon

Briest, Susanne and Karrer, Katja and Schleicher, Robert (2006) Driving without Awareness: Examination of the Phenomenon. Vision in Vehicles, 2006-07-27, Dublin (Irland).

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Abstract

In studies concerning driver state, particularly attention loss and driver drowsiness, a phenomenon can be observed which we refer to as driving without awareness (DWA). The purpose of the study presented here is to learn more about the underlying characteristics of this symptom of driver drowsiness that occurs if the will to keep one’s eyes open overrides the physiological need of a drowsy person to close his or her eyes. The crucial part of the presented analysis is the examination of the connection of DWA and micro sleep, the risk factors for DWA and a comparison of blink parameters. Experimental series in a driving simulator have revealed that almost every fifth driver shows states of deep unawareness during a monotonous drive on a simulated highway. The states of DWA occur predominantly together with events of so-called micro sleep. To confirm this finding, a follow-up study with 38 test-drivers has been analyzed in which subjects appeared twice to the test, under different test conditions concerning daytime. Subsequently, the method of video analysis was applied to document acute states of DWA and of micro sleep events. Results show that DWA often precedes or accompanies micro sleep. The occurrence of DWA seems to come along with certain patterns in blink behaviour, which are more similar to micro sleep events than to a state of being awake. These findings support our assumption that DWA is a precursor of falling asleep.

Document Type:Conference or Workshop Item (Speech)
Title:Driving without Awareness: Examination of the Phenomenon
Authors:
AuthorsInstitution or Email of Authors
Briest, SusanneUNSPECIFIED
Karrer, KatjaTU-Berlin
Schleicher, RobertUniversität Köln
Date:17 July 2006
Refereed publication:Yes
In ISI Web of Science:No
Status:Published
Keywords:Driving without awareness, micro sleep, driving simulator, blink behaviour, drowsiness, fatigue
Event Title:Vision in Vehicles
Event Location:Dublin (Irland)
Event Type:international Conference
Event Dates:2006-07-27
Organizer:Applied Vision Research Institute
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Transport
HGF - Program Themes:V SH - Verbesserung der Sicherheit im Verkehr (old)
DLR - Research area:Transport
DLR - Program:V SH - Verbesserung der Sicherheit im Verkehr
DLR - Research theme (Project):V - Entwicklung Fahrermodell (old)
Location: Braunschweig
Institutes and Institutions:Institute of Transportation Systems > Institute of Transportation Systems > Automotive
Deposited By: Susanne Briest
Deposited On:22 Sep 2006
Last Modified:14 Jan 2010 23:09

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