The Relationship Between Takeover Request Lead Time and Drivers’ Situation Awareness for Freeway Exiting in Conditionally Automated Driving
Conditionally automated vehicles require the out-of-the-loop driver to intervene when the system is unable to handle forthcoming situations, such as freeway exiting. The takeover request (ToR) for exiting a freeway can be scheduled in advance. Upon a ToR, the driver needs to gain situation awareness (SA) and resume manual control. This study examined how the ToR lead time affects driver SA for resuming control and when to send the ToR is most appropriate for freeway exiting. A web-based, supervised experiment was conducted with 31 participants. Each participant experienced 12 levels of ToR lead time (6, 8, 10, 12, 14, 16, 18, 20, 25, 30, 45, and 60 s). The results showed positive effects of longer ToR lead times (16–60 s) on driver SA for resuming control to exit from freeways in comparison to shorter ToR lead times (6–14 s), and the effects level off at 16–30 s.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/21695067
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Supplemental Notes:
- © 2021 by Human Factors and Ergonomics Society.
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Authors:
- Tan, Xiaomei
- Zhang, Yiqi
- Publication Date: 2021-9
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: pp 1385-1389
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Serial:
- Proceedings of the Human Factors and Ergonomics Society Annual Meeting
- Volume: 65
- Issue Number: 1
- Publisher: Sage Publications, Incorporated
- ISSN: 2169-5067
- EISSN: 1071-1813
- Serial URL: http://journals.sagepub.com/home/pro
Subject/Index Terms
- TRT Terms: Alertness; Autonomous vehicle handover; Drivers; Freeways; Human factors
- Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment;
Filing Info
- Accession Number: 01789647
- Record Type: Publication
- Files: TRIS
- Created Date: Nov 30 2021 10:21AM