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Tactical steering behaviour under irrevocable visual occlusion
Linköping University, Department of Behavioural Sciences and Learning, Psychology. Linköping University, Faculty of Arts and Sciences. Swedish Natl Rd and Transport Res Inst VTI, Linkoping, Sweden.ORCID iD: 0000-0002-1849-9722
Swedish Natl Rd and Transport Res Inst VTI, Linkoping, Sweden.
Linköping University, Department of Computer and Information Science. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering.
2018 (English)In: Transportation Research Part F: Traffic Psychology and Behaviour, ISSN 1369-8478, E-ISSN 1873-5517, Vol. 55, p. 67-77Article in journal (Refereed) Published
Abstract [en]

Objective: To investigate the extent of a drivers mental model with irrevocable visual occlusion and analysing the distance to crash. Background: Drivers have a mental model of the immediate surroundings which allows them to predict their own as well as others travel paths. To navigate safely through traffic, this mental model has to be updated frequently to remain valid. In between information sampling events, the mental model will become outdated over time, as the traffic system is dynamic. Method: A simulator study with 22 participants was conducted to investigate the information decay in the mental model. This was implemented by extending visual occlusion until the driver collided with another vehicle or ran off the road, thus providing an estimate of how long it takes until the mental model becomes obsolete. Results: An analysis of variance with the factors curve direction, curve radius and traffic showed that curve radius did not influence the distance to crash. Without traffic, drivers veered off the road sooner in right curves. Adding traffic eliminated this difference. Traffic ahead led to a shortened distance to crash. Compared to a tangential travel path from the current lateral position at the time of the occlusion, drivers crashed on average 2.6 times later than they would have, had they not had any mental model of the situation. Conclusions: The drivers mental representation of the future situation seems to include information on how to act, to alleviate deviations in yaw angle, including and considering the presence of other road users. (C) 2018 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
ELSEVIER SCI LTD , 2018. Vol. 55, p. 67-77
Keywords [en]
Visual occlusion; Information decay; Mental model; Driving behaviour; Tactical behaviour
National Category
Infrastructure Engineering
Identifiers
URN: urn:nbn:se:liu:diva-148392DOI: 10.1016/j.trf.2018.02.035ISI: 000432641100007OAI: oai:DiVA.org:liu-148392DiVA, id: diva2:1218587
Note

Funding Agencies|VINNOVA (the Swedish Governmental Agency for Innovation Systems) [2011-03994]

Available from: 2018-06-14 Created: 2018-06-14 Last updated: 2018-06-14

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Kircher, KatjaNylin, MagnusMengist, Alachew
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PsychologyFaculty of Arts and SciencesDepartment of Computer and Information ScienceFaculty of Science & EngineeringSoftware and Systems
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Transportation Research Part F: Traffic Psychology and Behaviour
Infrastructure Engineering

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