• Mathilde François, Philippe Crave, François Osiurak, Alexandra Fort, and Jordan Navarro.
• Laboratoire d'Etude des Mécanismes Cognitifs, Université de Lyon, Bron, France; Volvo Group Trucks Technology (GTT), Saint Priest, France. Electronic address: mathilde.francois@volvo.com.
• Appl Ergon. 2017 Nov 1; 65: 12-22.

AbstractExisting literature does not draw conclusions as to which speedometer type is better for truck driving. A digital speedometer would be more beneficial when obtaining absolute and relative readings, while an analogue speedometer would be more efficient and less distracting when detecting dynamic speed changes. Redundant speedometers, which simultaneously present digital and analogue speedometers, appear increasingly in vehicles, but no information is available on their ergonomic qualities. This study compared three speedometers: digital speedometers, analogue speedometers, and redundant speedometers. This study compared the efficiency, usability and visual distraction measures for all three types of speedometers in a simulated truck driving setting. The task-dependant results were confirmed for the digital and analogue speedometer. The redundant speedometer combined the benefits of each type presented separately, which highlights interesting theoretical and applied implications.Copyright © 2017 Elsevier Ltd. All rights reserved.

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