Effects of Individual Vehicle Differences on Advanced Driver-Assist System Takeover Alert Behavior

Disengagement of advanced driver-assist systems (ADAS) has significant safety implications in partially automated vehicles where drivers may not be paying attention; this requires rigorous testing to ensure vehicles can safely transfer control to drivers. Existing testing and regulation on this topic are minimal, and do not address the role of difficult-to-measure but potentially important variables relating to individual vehicle differences or variations in environmental conditions. This study assessed variability in takeover alerting performance in three Model 3 Tesla vehicles in a demanding driving setting on a closed track. Results revealed that once an alerting sequence had begun, the ADAS systems performed as designed, but the vehicles were highly variable in the timing of alert initiation following the loss of lane marking tracking. In addition, luminosity and sun angle were found to potentially have a role in alert initiation, but dashboard-mounted cameras may be insufficient for measuring variations in atmospheric brightness. We recommend that future work studies brightness, as well as more comprehensive sampling guidelines for vehicle test protocols to ensure differences are adequately considered.

• Record URL:
  • https://doi.org/10.1177/03611981211068362
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• Supplemental Notes:
  • Benjamin Bauchwitz https://orcid.org/0000-0003-4672-0233 © National Academy of Sciences: Transportation Research Board 2022.
• Authors:
  • Bauchwitz, Benjamin
  • 0000-0003-4672-0233
  • Cummings, Mary
  • 0000-0003-2557-6930
• Publication Date: 2022-5

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Pagination: pp 489-499
• Serial:
  • Transportation Research Record: Journal of the Transportation Research Board
  • Volume: 2676
  • Issue Number: 5
  • Publisher: Sage Publications, Incorporated
  • ISSN: 0361-1981
  • EISSN: 2169-4052
  • Serial URL: http://journals.sagepub.com/home/trr

Subject/Index Terms

• TRT Terms: Autonomous vehicle handover; Autonomous vehicles; Behavior; Driver support systems; Drivers
• Identifier Terms: Tesla automobile
• Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 01764212
• Record Type: Publication
• Report/Paper Numbers: TRBAM-21-03139
• Files: TRIS, TRB, ATRI
• Created Date: Feb 4 2021 11:00AM