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Language-based multimodal displays for the handover of control in autonomous cars

Published: 01 September 2015 Publication History

Abstract

This paper presents a first evaluation of multimodal language-based warnings for handovers of control in autonomous cars. A set of possible handover situations varying in urgency is described. A set of multimodal, language-based warnings for these situations is then introduced. All combinations of audio, tactile and visual warnings for handovers were evaluated in terms of perceived urgency, annoyance and alerting effectiveness. Results showed clear recognition of the warning urgency in this new context, as well as low perceived annoyance overall, and higher perceived effectiveness for critical warnings. The time of transition from self-driving to manual mode in the presence of the warnings was then evaluated. Results showed quicker transitions for highly urgent warnings and poor driving performance for unimodal visual warnings. These results provide a novel set of guidelines for an effective transition of control between car and driver in an autonomous vehicle.

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AutomotiveUI '15: Proceedings of the 7th International Conference on Automotive User Interfaces and Interactive Vehicular Applications
September 2015
338 pages
ISBN:9781450337366
DOI:10.1145/2799250
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

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Publication History

Published: 01 September 2015

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Author Tags

  1. audio
  2. autonomous cars
  3. handover
  4. multimodal feedback
  5. speech
  6. tactile
  7. tactons
  8. urgency
  9. visual
  10. warnings

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  • Research-article

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  • Freescale Semiconductor Inc., Automotive Microcontroller Product Group

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AutomotiveUI '15

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AutomotiveUI '15 Paper Acceptance Rate 38 of 80 submissions, 48%;
Overall Acceptance Rate 248 of 566 submissions, 44%

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