  Recent developments in advanced driving assistance systems (ADAS) that rely
on some level of autonomy have led the automobile industry and research
community to investigate the impact they might have on driving performance.
However, most of the research performed so far is based on simulated
environments. In this study, we investigated the behavior of drivers in a
vehicle with automated driving system (ADS) capabilities in a real-life driving
scenario. We analyzed their response to a take over request (TOR) at two
different driving speeds while being engaged in non-driving-related tasks
(NDRT). Results from the performed experiments showed that driver reaction time
to a TOR, gaze behavior and self-reported trust in automation were affected by
the type of NDRT being concurrently performed and driver reaction time and gaze
behavior additionally depended on the driving or vehicle speed at the time of
TOR.
