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2020 | OriginalPaper | Chapter

The Impact of Autonomous Vehicles’ Active Feedback on Trust

Authors : Ana Mackay, Inês Fortes, Catarina Santos, Dário Machado, Patrícia Barbosa, Vera Vilas Boas, João Pedro Ferreira, Nélson Costa, Carlos Silva, Emanuel Sousa

Published in: Advances in Safety Management and Human Factors

Publisher: Springer International Publishing

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Abstract

The successful introduction of self-driving technology may depend on the ability of the vehicles’ human-machine interface to convey trust to the vehicle occupants. Using a driving simulator, in this experiment we aimed to evaluate drivers’ trust on an autonomous system, depending on the feedback the vehicle provided by an assistive cluster’s interface. Forty participants were divided into three groups regarding levels of feedback: (a) cluster without feedback (N = 13); (b) cluster with feedback regarding the surrounding vehicles (N = 14); (c) cluster with feedback regarding the surrounding vehicles and the vehicle’s own decisions (N = 13). For all groups, a visual search task was introduced as an indirect indicator of trust in the autonomous system. Results showed an inverse relation between available feedback and correct answers. The system was evaluated as trustable and safe by all groups. Overall, the results may contribute to design requirements for future vehicle HMIs, as they indicate that more information does not necessarily convey more trust.

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Metadata
Title
The Impact of Autonomous Vehicles’ Active Feedback on Trust
Authors
Ana Mackay
Inês Fortes
Catarina Santos
Dário Machado
Patrícia Barbosa
Vera Vilas Boas
João Pedro Ferreira
Nélson Costa
Carlos Silva
Emanuel Sousa
Copyright Year
2020
Book
Advances in Safety Management and Human Factors

Print ISBN: 978-3-030-20496-9

Electronic ISBN: 978-3-030-20497-6

Copyright Year: 2020

DOI
https://doi.org/10.1007/978-3-030-20497-6_32