Abstract
Maintaining an appropriate level of trust in automated driving (AD) is critical to safe driving. However, few studies have explored factors affecting trust in AD in general, and no study, as far as is known, has directly investigated whether driver personality influences driver trust in an AD system. The current study investigates the relation between driver personality and driver trust in AD, focusing on Level 2 AD. Participants were required to perform a period of AD in a driving simulator, during which their gaze and driving behavior were recorded, as well as their subjective trust scores after driving. In three distinct measures, a significant correlation between Openness and driver trust in the AD system is found: participants with higher Openness traits tend to have less trust in the AD system. No significant correlations between driver trust in AD and other personality traits are found. The findings suggest that driver personality has an impact on driver trust in AD. Theoretical and practical implications of this finding are discussed.
Highlights
Automated driving (AD) in commercially available vehicles is growing rapidly and the advances of AD technology potentially lead to a safer and more efficient traffic environment
Trust has been identified as a crucial factor influencing the acceptance and the use of automated technology in general [1,2,3,4,5,6,7], and it is regarded as a prominent human–machine interface (HMI) issue in AD in particular
During the AD, participants fixated on the areas of interest (AOI) 0.57 times per second on average, and the average time they spent monitoring the AOI scaled to the duration of non-driving-related task (NDRT) was 0.65
Summary
Automated driving (AD) in commercially available vehicles is growing rapidly and the advances of AD technology potentially lead to a safer and more efficient traffic environment. One of the most important issues is driver trust in AD vehicle systems. Trust has been identified as a crucial factor influencing the acceptance and the use of automated technology in general [1,2,3,4,5,6,7], and it is regarded as a prominent human–machine interface (HMI) issue in AD in particular. Excessive trust in the AD system was one key factor leading to a fatal AD traffic accident and two drunk driving cases involving AD in 2018 [8,9,10]
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