Determinants of take-over time from automated driving: A meta-analysis of 129 studies

Bo Zhang*, Joost de Winter, Silvia Varotto, Riender Happee, Marieke Martens

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

176 Citations (Scopus)
144 Downloads (Pure)


An important question in automated driving research is how quickly drivers take over control of the vehicle in response to a critical event or a take-over request. Although a large number of studies have been performed, results vary strongly. In this study, we investigated mean take-over times from 129 studies with SAE level 2 automation or higher. We used three complementary approaches: (1) a within-study analysis, in which differences in mean take-over time were assessed for pairs of experimental conditions, (2) a between-study analysis, in which correlations between experimental conditions and mean take-over times were assessed, and (3) a linear mixed-effects model combining between-study and within-study effects. The three methods showed that a shorter mean take-over time is associated with a higher urgency of the situation, not using a handheld device, not performing a visual non-driving task, having experienced another take-over scenario before in the experiment, and receiving an auditory or vibrotactile take-over request as compared to a visual-only or no take-over request. A consistent effect of age was not observed. We also found the mean and standard deviation of the take-over time were highly correlated, indicating that the mean is predictive of variability. Our findings point to directions for new research, in particular concerning the distinction between drivers’ ability and motivation to take over, and the roles of urgency and prior experience.
Original languageEnglish
Pages (from-to)285-307
JournalTransportation Research Part F: Traffic Psychology and Behaviour
Publication statusPublished - 2019

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project

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.


  • Automated driving
  • Literature review
  • Take-over time
  • Transition of control


Dive into the research topics of 'Determinants of take-over time from automated driving: A meta-analysis of 129 studies'. Together they form a unique fingerprint.

Cite this