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"Watch Out!" Semi-Autonomous Vehicles Using Assertive Voices to Grab Distracted Drivers’ Attention

Wong, PNY; Brumby, DP; Vardhan Ramesh Babu, H; Kobayashi, K; (2019) "Watch Out!" Semi-Autonomous Vehicles Using Assertive Voices to Grab Distracted Drivers’ Attention. In: Brewster, Stephen and Fitzpatrick, Geraldine, (eds.) Proceedings of Extended Abstracts of the 2019 CHI Conference on Human Factors in Computing Systems (CHI EA '19). (pp. Paper No. LBW2312). ACM: Glasgow, Scotland, UK. Green open access

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Abstract

Semi-autonomous vehicles are gradually appearing on our roads, and have already been involved in several high-profile accidents. These accidents usually occurred because the driver did not intervene in time when the automated system failed. An important issue for the design of future semi-autonomous vehicles is identifying effective methods for alerting drivers to critical events that require their intervention. To investigate this, we report the results of a lab-based simulator study in which participants had to respond to driving events while also playing an immersive mobile game on a phone. Results show that a more assertive voice alerting the driver to driving events resulted in faster reaction times and was perceived as more urgent than a less assertive voice, regardless of how immersed the driver was in the mobile game. These results suggest that the designers of future semi-autonomous vehicles should use assertive voice commends to alert drivers to critical events that require their intervention.

Type: Proceedings paper
Title: "Watch Out!" Semi-Autonomous Vehicles Using Assertive Voices to Grab Distracted Drivers’ Attention
Event: CHI Conference on Human Factors in Computing Systems Extended Abstracts (CHI’19 Extended Abstracts)
Location: Glasgow, Scotland UK
Dates: 04 May 2019 - 09 May 2019
ISBN-13: 978-1-4503-5971-9
Open access status: An open access version is available from UCL Discovery
DOI: 10.1145/3290607.3312838
Publisher version: https://doi.org/10.1145/3290607.3312838
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Autonomous vehicles; Voice assistant; Assertiveness
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > UCL Interaction Centre
URI: https://discovery.ucl.ac.uk/id/eprint/10070144
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