To Beep or Not to Beep?: Comparing Abstract versus Language-Based Multimodal Driver Displays

Politis, I., Brewster, S. and Pollick, F. (2015) To Beep or Not to Beep?: Comparing Abstract versus Language-Based Multimodal Driver Displays. In: CHI 2015, Seoul, Republic of Korea, 18-23 Apr 2015, pp. 3971-3980. ISBN 9781450331456 (doi:10.1145/2702123.2702167)

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Abstract

Multimodal displays are increasingly being utilized as driver warnings. Abstract warnings, without any semantic association to the signified event, and language-based warnings are examples of such displays. This paper presents a first comparison between these two types, across all combinations of audio, visual and tactile modalities. Speech, text and Speech Tactons (a novel form of tactile warnings synchronous to speech) were compared to abstract pulses in two experiments. Results showed that recognition times of warning urgency during a non-critical driving situation were shorter for abstract warnings, highly urgent warnings and warnings including visual feedback. Response times during a critical situation were shorter for warnings including audio. We therefore suggest abstract visual feedback when informing drivers during a non-critical situation and audio in a highly critical one. Language-based warnings during a critical situation performed equally well as abstract ones, so they are suggested as less annoying vehicle alerts.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Pollick, Professor Frank and Brewster, Professor Stephen
Authors: Politis, I., Brewster, S., and Pollick, F.
College/School:College of Science and Engineering > School of Computing Science
College of Science and Engineering > School of Psychology
ISBN:9781450331456
Copyright Holders:Copyright © 2015 The Authors
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher.

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