Cyclists’ eye movements and crossing judgments at uncontrolled intersections

Cyclists’ eye movements and crossing judgments at uncontrolled intersections: An eye-tracking study using animated video clips

Kovacsova, N. (TU Delft Biomechatronics & Human-Machine Control)
Cabrall, C.D.D. (TU Delft Intelligent Vehicles)
Antonisse, S.J. (Student TU Delft)
De Haan, T. (Student TU Delft)
van Namen, R. (Student TU Delft)
Nooren, J.L. (Student TU Delft)
Schreurs, R. (Student TU Delft)
Hagenzieker, Marjan (TU Delft Transport and Planning)
de Winter, J.C.F. (TU Delft Human-Robot Interaction; TU Delft Biomechatronics & Human-Machine Control)

2018

Research indicates that crashes between a cyclist and a car often occur even when the cyclist must have seen the approaching car, suggesting the importance of hazard anticipation skills. This study aimed to analyze cyclists’ eye movements and crossing judgments while approaching an intersection at different speeds. Thirty-six participants watched animated video clips with a car approaching an uncontrolled four-way intersection and continuously indicated whether they would cross the intersection first. We varied (1) car approach scenario (passing, colliding, stopping), (2) traffic complexity (one or two approaching cars), and (3) cyclist’s approach speed (15, 25, or 35 km/h). Results showed that participants looked at the approaching car when it was relevant to the task of crossing the intersection and posed an imminent hazard, and they directed less attention to the car after it had stopped or passed the intersection. Traffic complexity resulted in divided attention between the two cars, but participants retained most visual attention to the car that came from the right and had right of way. Effects of cycling speed on cyclists’ gaze behavior and crossing judgments were small to moderate. In conclusion, cyclists’ visual focus and crossing judgments are governed by situational factors (i.e., objects with priority and future collision potential), whereas cycling speed does not have substantial effects on eye movements and crossing judgments.

Eye movements
Hazard anticipation
Crossing judgment
Bicycle-car interaction
Cycling safety

http://resolver.tudelft.nl/uuid:ec0b721d-1c40-462e-aa37-0749042241bb

https://doi.org/10.1016/j.aap.2018.08.024

2019-03-01

0001-4575

Accident Analysis & Prevention, 120, 270-280

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Institutional Repository

journal article

© 2018 N. Kovacsova, C.D.D. Cabrall, S.J. Antonisse, T. De Haan, R. van Namen, J.L. Nooren, R. Schreurs, Marjan Hagenzieker, J.C.F. de Winter