| Abstract |
| This Level 3 automated driving simulation study examined the effects of day or night driving and non-driving task (NDT) engagement on young and older drivers' takeover time (TOT), vehicle control (VC), and subjective workload (SW). Participants were required to quickly and accurately resume manual control and avoid an obstacle that suddenly appeared ahead during NDT engagement. The results were as follows. First, both night driving and NDT engagement increased participants' TOT, deteriorated longitudinal and lateral vehicle control, and elevated subjective workload. Second, older drivers exhibited poorer vehicle control performance than younger drivers. Third, when night driving and NDT engagement were combined, older drivers performed worse than younger drivers across all dependent measures. These findings indicate that attentional distraction in older drivers during nighttime Level 3 automated driving may heighten difficulties in interacting with the automated vehicle and avoiding obstacles in emergency situations. |
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| Key Words |
| Level-3 Automated Driving, Older Drivers, Day/Night Driving, Non-Driving Task, Control Takeover, Vehicle Control, 3-수준 자율주행, 고령운전자, 주간/야간 운전, 비운전과제, 제어권 전환, 차량제어 |
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