TY - GEN
T1 - The influence of non-driving related tasks on driver availability in the context of conditionally automated driving
AU - Radlmayr, Jonas
AU - Fischer, Fabian Marco
AU - Bengler, Klaus
N1 - Publisher Copyright:
© Springer Nature Switzerland AG 2019.
PY - 2019
Y1 - 2019
N2 - This study looked at the effect of three different non-driving related tasks (NDRT) (Surrogate Reference Task (SuRT), n-back task and a motoric task), instructed or free engagement into these tasks and the resulting take-over performance in two different take-over situations after conditionally automated driving. We conducted a study with 53 participants in a static driving simulator. Participants were split into three groups and each group was assigned one of the three NDRT’s. Each participant per group experienced two different take-over situations twice, totaling in four take-overs. In addition, prior to a take-over, participants were either instructed to engage in the task assigned to their group or could choose their NDRT’s freely. Dependent variables to assess driver availability were percent eyes on road (PEOR), standard deviation of the horizontal gaze dispersion (HGD) and blink frequency and changes in the center of pressure and contact area (COP) in the seat. To analyze take-over performance, we looked at gaze reaction time, take-over time, time to collision (TTC), standard deviation of lateral position (SDLP), longitudinal and lateral accelerations and subjective ratings. Results showed significant changes for the different NDRT’s for the driver availability variables. The type of instruction did not show differences in the take-over performance, while we saw significant differences between the two different take-over situations. We concluded that the influence from different take-over situations is high, while differences in driver availability can be measured well with the right sensors, but do not lead to different take-over performances.
AB - This study looked at the effect of three different non-driving related tasks (NDRT) (Surrogate Reference Task (SuRT), n-back task and a motoric task), instructed or free engagement into these tasks and the resulting take-over performance in two different take-over situations after conditionally automated driving. We conducted a study with 53 participants in a static driving simulator. Participants were split into three groups and each group was assigned one of the three NDRT’s. Each participant per group experienced two different take-over situations twice, totaling in four take-overs. In addition, prior to a take-over, participants were either instructed to engage in the task assigned to their group or could choose their NDRT’s freely. Dependent variables to assess driver availability were percent eyes on road (PEOR), standard deviation of the horizontal gaze dispersion (HGD) and blink frequency and changes in the center of pressure and contact area (COP) in the seat. To analyze take-over performance, we looked at gaze reaction time, take-over time, time to collision (TTC), standard deviation of lateral position (SDLP), longitudinal and lateral accelerations and subjective ratings. Results showed significant changes for the different NDRT’s for the driver availability variables. The type of instruction did not show differences in the take-over performance, while we saw significant differences between the two different take-over situations. We concluded that the influence from different take-over situations is high, while differences in driver availability can be measured well with the right sensors, but do not lead to different take-over performances.
KW - Automated driving
KW - NDRT
KW - Non-driving related tasks
KW - Take-over performance
UR - http://www.scopus.com/inward/record.url?scp=85051763916&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-96074-6_32
DO - 10.1007/978-3-319-96074-6_32
M3 - Conference contribution
AN - SCOPUS:85051763916
SN - 9783319960739
T3 - Advances in Intelligent Systems and Computing
SP - 295
EP - 304
BT - Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018) - Volume VI
A2 - Fujita, Yushi
A2 - Bagnara, Sebastiano
A2 - Tartaglia, Riccardo
A2 - Albolino, Sara
A2 - Alexander, Thomas
PB - Springer Verlag
T2 - 20th Congress of the International Ergonomics Association, IEA 2018
Y2 - 26 August 2018 through 30 August 2018
ER -