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Effects of Task-Induced Fatigue in Prolonged Conditional Automated Driving
Oliver Jarosch1, Hanna Bellem2, Klaus Bengler3
1BMW Group, Garching, Germany.
Human Factors
|January 19, 2019
Summary
Engaging in monotonous non-driving related tasks during conditional automated driving impairs driver takeover performance. Maintaining an adequate driver state is crucial for safety in prolonged automated driving scenarios.
Area of Science:
- Human-Computer Interaction
- Automotive Engineering
- Cognitive Psychology
Background:
- Conditional automated driving allows drivers to engage in non-driving related tasks (NDRTs).
- Drivers must be prepared to retake control when the automated system reaches its limits.
- Investigating driver state and NDRT effects on takeover performance is critical for safety.
Purpose of the Study:
- To examine the impact of task-induced fatigue during prolonged conditional automated driving on driver takeover performance.
- To assess how different types of NDRTs influence driver state and subsequent control transitions.
Main Methods:
- Seventy-three participants underwent prolonged conditional automated driving sessions.
- Participants engaged in either an activating quiz or a fatiguing monitoring task concurrently.
- Takeover performance was evaluated after 50 minutes of automated driving and NDRT engagement.
Main Results:
- Prolonged conditional automated driving combined with NDRTs significantly affected driver state and takeover performance.
- Monotonous NDRTs led to impaired takeover performance compared to activating tasks.
- Driver state was demonstrably altered by the engagement in concurrent tasks.
Conclusions:
- Monotonous NDRTs in conditional automated driving negatively impact driver takeover performance.
- Maintaining an adequate driver state is essential for ensuring safety during takeover situations.
- Driver monitoring and adaptive assistance systems can enhance safety in automated driving.
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