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Investigation on the Effect of Mental Workload on the Time-related Take-over Performance
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- Authors
- Jungsook Kim, Hyun-Suk Kim, Woojin Kim, Seung-Jun Lee, Daesub Yoon
- Issue Date
- 2020-10
- Citation
- International Conference on Information and Communication Technology Convergence (ICTC) 2020, pp.1912-1917
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- The conditionally automated vehicles require human intervention in case of automatic driving failure. The automated vehicles generate a warning message called a Take-over Request (TOR) to the human driver for switching vehicle control from automation to manual. The take-over performance initiated from the TOR depends on human factors. In this work, we have analyzed the effect of subjective mental workload on the take-over performance in the time-related view. The results showed that the increased subjective mental workload caused the take-over performance impairment. The settling time, which is the time required to stably manipulate the vehicle after the regain of the control from automation, is increased in proportion to the mental workload. Consequently, the total Time Budget to complete the take-over increased. Therefore, the SAE 2nd and 3rd level automatic vehicles need to monitor the drivers' status and induce them to maintain appropriate level of mental workload.
- KSP Keywords
- Automated vehicles, Automatic driving, Human Factors, Human driver, Time budget, Warning message, human intervention, mental workload, settling time, take-over request, vehicle control