Abstract

Research on external human&ndash

machine interfaces (eHMIs) has recently become a major area of interest in the field of human factors research on automated driving. The broad variety of methodological approaches renders the current state of research inconclusive and comparisons between interface designs impossible. To date, there are no standardized test procedures to evaluate and compare different design variants of eHMIs with each other and with interactions without eHMIs. This article presents a standardized test procedure that enables the effective usability evaluation of eHMI design solutions. First, the test procedure provides a methodological approach to deduce relevant use cases for the evaluation of an eHMI. In addition, we define specific usability requirements that must be fulfilled by an eHMI to be effective, efficient, and satisfying. To prove whether an eHMI meets the defined requirements, we have developed a test protocol for the empirical evaluation of an eHMI with a participant study. The article elucidates underlying considerations and details of the test protocol that serves as framework to measure the behavior and subjective evaluations of non-automated road users when interacting with automated vehicles in an experimental setting. The standardized test procedure provides a useful framework for researchers and practitioners.

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Original document

The different versions of the original document can be found in:

https://doaj.org/toc/2078-2489 under the license cc-by
http://dx.doi.org/10.3390/info11030173
https://www.mdpi.com/2078-2489/11/3/173,
https://dblp.uni-trier.de/db/journals/information/information11.html#KassSNHKN20,
https://doi.org/10.3390/info11030173,
https://www.scilit.net/article/15ce093f4adec50049b3c3242c31d00f,
https://academic.microsoft.com/#/detail/3013340098 under the license https://creativecommons.org/licenses/by/4.0/
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Published on 01/01/2020

Volume 2020, 2020
DOI: 10.3390/info11030173
Licence: Other

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