Abstract：
OBJECTIVE:The aim of this study was to investigate steering control in a low-cost driving simulator with and without a virtual vehicle cab. BACKGROUND:In low-cost simulators, the lack of a vehicle cab denies driver access to vehicle width, which could affect steering control, insofar as locomotor adjustments are known to be based on action-scaled visual judgments of the environment. METHOD:Two experiments were conducted in which steering control with and without a virtual vehicle cab was investigated in a within-subject design, using cornering and straight-lane-keeping tasks. RESULTS:Driving around curves without vehicle cab information made drivers deviate more from the lane center toward the inner edge in right (virtual cab = 4 ± 19 cm; no cab = 42 ± 28 cm; at the apex of the curve, p < .001) but not in left curves. More lateral deviation from the lane center toward the edge line was also found in driving without the virtual cab on straight roads (virtual cab = 21 ± 28 cm; no cab = 36 ± 27 cm; p < .001), whereas driving stability and presence ratings were not affected. In both experiments, the greater lateral deviation in the no-cab condition led to significantly more time driving off the lane. CONCLUSION:The findings strongly suggest that without cab information, participants underestimate the distance to the right edge of the car (in contrast to the left edge) and thus vehicle width. This produces considerable differences in the steering trajectory. APPLICATION:Providing a virtual vehicle cab must be encouraged for more effectively capturing drivers' steering control in low-cost simulators.
journal_name
Hum Factorsjournal_title
Human factorsauthors
Mecheri S,Lobjois Rdoi
10.1177/0018720818769253subject
Has Abstractpub_date
2018-08-01 00:00:00pages
719-734issue
5eissn
0018-7208issn
1547-8181journal_volume
60pub_type
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