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The impact of false warnings on partial and full lane departure warnings effectiveness and acceptance in car driving.

Authors
  • Navarro, Jordan1
  • Yousfi, Elsa1
  • Deniel, Jonathan1
  • Jallais, Christophe2
  • Bueno, Mercedes2
  • Fort, Alexandra2
  • 1 a Laboratoire d'Etude des Mécanismes Cognitifs (EA 3082), Institut de Psychologie , University Lyon 2 , Bron Cedex , France.
  • 2 b LESCOT-TS2-IFSTTAR (French Institute of Science and Technology for Transport, Development and Networks) , Bron Cedex , France.
Type
Published Article
Journal
Ergonomics
Publication Date
December 2016
Volume
59
Issue
12
Pages
1553–1564
Identifiers
PMID: 26916010
Source
Medline
Keywords
License
Unknown

Abstract

In the past, lane departure warnings (LDWs) were demonstrated to improve driving behaviours during lane departures but little is known about the effects of unreliable warnings. This experiment focused on the influence of false warnings alone or in combination with missed warnings and warning onset on assistance effectiveness and acceptance. Two assistance unreliability levels (33 and 17%) and two warning onsets (partial and full lane departure) were manipulated in order to investigate interaction. Results showed that assistance, regardless unreliability levels and warning onsets, improved driving behaviours during lane departure episodes and outside of these episodes by favouring better lane-keeping performances. Full lane departure and highly unreliable warnings, however, reduced assistance efficiency. Drivers' assistance acceptance was better for the most reliable warnings and for the subsequent warnings. The data indicate that imperfect LDWs (false warnings or false and missed warnings) further improve driving behaviours compared to no assistance. Practitioner Summary: This study revealed that imperfect lane departure warnings are able to significantly improve driving performances and that warning onset is a key element for assistance effectiveness and acceptance. The conclusion may be of particular interest for lane departure warning designers.

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