Prolonged exposure to an automated driving system (ADS) can lead drivers to acclimate to the ADS in maladaptive ways. For example, exposure to a conditional ADS that maintained a time headway of 0.3 s resulted in drivers adopting smaller time headways postautomation, which is attributed to behavioral adaptation. The current study investigated whether drivers adapt to an ADS’ performance over time and if this adaptation differs based on the duration of automation exposure (15 or 25 min) and the task performed during the automation (NDRT or driving-related task). A greater exposure to the automation did not lead drivers to adopt smaller time headways. Surprisingly, drivers who provided a higher evaluation of the automation adopted smaller time headways post-automation than drivers who provided a lower evaluation. Future research should explore the relationship between trust in ADS and driving behavior to guide the development of safer ADSs.
Read full abstract