On-Road Assessment of Driver Mode Awareness of Assisted and Automated Driving

Abstract

Increasingly, today’s vehicles offer Society of Automotive Engineers (SAE) Level 2 (L2) technology, and a limited number of SAE Level 3 (L3) automated driving systems (ADSs) are being developed. Since L3 ADSs can operate in L2 and manual driving, drivers’ correct mode awareness is essential. To investigate driver’s mode awareness after transitions between modes, an on-road experiment was conducted using a Wizard-of-Oz method to simulate Assisted Driving (L2-like) and Automated Driving (L3/L4-like). A total of 36 drivers completed the on-road experiment. Participants experienced periods of manual driving, assisted driving, automated driving, and transitions between these modes. After each transition, participants’ mode awareness was measured. It was hypothesized that drivers’ mode awareness would increase with system exposure over the planned automated driving periods. Results showed that drivers exhibited declarative mode awareness during both Assisted (ASD) and Automated Driving (AD) modes.

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References

Bengler

Omozik

Scheiter

(2019). The Renaissance of Wizard of Oz (WoOz) - Using the WoOz methodology to prototype automated vehicles.

Endsley

M. R.

Kiris

E. O.

(1995). The out-of-the-loop performance problem and level of control in automation. Human factors, 37(2), 381-394.

Etherington

(2020). Honda to mass-produce Level 3 autonomous cars by March. Retrieved from https://techcrunch.com/2020/11/11/honda- to-mass-produce-level-3-autonomous-cars-by-march/

Feldhütter

Segler

Bengler

(2017). Does shifting between conditionally and partially automated driving lead to a loss of mode awareness? Paper presented at the International conference on applied human factors and ergonomics.

Fraser

N. M.

Gilbert

G. N.

(1991). Simulating speech systems. Computer Speech & Language, 5(1), 81-99.

Jarosch

Paradies

Feiner

Bengler

(2019). Effects of non-driving related tasks in prolonged conditional automated driving – A Wizard of Oz on-road approach in real traffic environment. Transportation Research Part F: Traffic Psychology and Behaviour, 65, 292-305. doi:10.1016/j.trf.2019.07.023

Klingegård

Andersson

Habibovic

Nilsson

Rydström

(2020). Drivers’ Ability to Engage in a Non-Driving Related Task While in Automated Driving Mode in Real Traffic. IEEE Access, 8, 221654-221668.

Kurpiers

Biebl

Mejia Hernandez

Raisch

(2020). Mode Awareness and Automated Driving—What Is It and How Can It Be Measured? Information, 11(5), 277.

Laßmann

Othersen

Fischer

M. S.

Reichelt

Jenke

Tüzün

G.-J.

…Maier

(2020). Driver’s Experience and Mode Awareness in between and during Transitions of different Levels of Car Automation. Proceedings of the Human Factors and Ergonomics Society Europe.

10.

Currano

Sirkin

Goedicke

Tennent

Levine

… Acm . (2020). On-Road and Online Studies to Investigate Beliefs and Behaviors of Netherlands, US and Mexico Pedestrians Encountering Hidden-Driver Vehicles. In Proceedings of the 2020 Acm/Ieee International Conference on Human-Robot Interaction (pp. 141-149).

11.

Louw

Goncalves

Torrao

Radhakrishnan

Lyu

Puente Guillen

Merat

(2020). Do drivers change their manual car-following behaviour after automated car-following? Cognition, Technology and Work. doi:10.1007/s10111-020-00658-5

12.

Merat

Seppelt

Louw

Engström

Lee

J. D.

Johansson

…Itoh

(2019). The “out-of-the-loop” concept in automated driving: Proposed definition, measures and implications. Cognition, Technology & Work, 21(1), 87-98.

13.

Pipkorn

Victor

T. W.

Dozza

Tivesten

(2021). Driver conflict response during supervised automation: Do hands on wheel matter? Transportation Research Part F: Traffic Psychology and Behaviour, 76, 14-25.

14.

Purucker

Berghöfer

Naujoks

Wiedemann

Marberger

(2018). Prediction of Take-Over Time Demand in Highly Automated Driving. Results of a Naturalistic Driving Study.

15.

SAE. (2021). Taxonomy and Definitions for Terms Related to Driving Automation Systems for On-Road Motor Vehicles. In SAE Standard J (Vol. 3016, pp. 1-16).

16.

Sarter

N. B.

Woods

D. D.

(1995). How in the world did we ever get into that mode? Mode error and awareness in supervisory control. Human factors, 37(1), 5-19.

17.

Schieben

Heesen

Schindler

Kelsch

Flemisch

(2009). The theater-system technique: Agile designing and testing of system behavior and interaction, applied to highly automated vehicles. Paper presented at the 1st International Conference on Automotive User Interfaces and Interactive Vehicular Applications, AutomotiveUI 2009, September 21, 2009 - September 22, 2009, Essen, Germany.

18.

Seppelt

B. D.

Victor

T. W.

(2016). Potential solutions to human factors challenges in road vehicle automation. In Road vehicle automation 3 (pp. 131-148): Springer.

19.

TxDOT Visual Dictionary - Controlled Access. (2021). Retrieved from https://www.txdot.gov/driver/txdot-visual-dictionary/controlled-access.html