Standardized Test Procedure for External Human–Machine Interfaces of Automated Vehicles
1
Würzburg Institute for Traffic Sciences GmbH, 97209 Veitshöchheim, Germany
2
BMW Group, 80937 Munich, Germany
*
Author to whom correspondence should be addressed.
Information 2020, 11(3), 173; https://doi.org/10.3390/info11030173
Received: 28 February 2020
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Revised: 20 March 2020
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Accepted: 23 March 2020
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Published: 24 March 2020
(This article belongs to the Special Issue Test and Evaluation Methods for Human-Machine Interfaces of Automated Vehicles)
Research on external human–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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Keywords:
eHMI; standardized test procedure; use cases; test protocol; automated driving
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MDPI and ACS Style
Kaß, C.; Schoch, S.; Naujoks, F.; Hergeth, S.; Keinath, A.; Neukum, A. Standardized Test Procedure for External Human–Machine Interfaces of Automated Vehicles. Information 2020, 11, 173. https://doi.org/10.3390/info11030173
AMA Style
Kaß C, Schoch S, Naujoks F, Hergeth S, Keinath A, Neukum A. Standardized Test Procedure for External Human–Machine Interfaces of Automated Vehicles. Information. 2020; 11(3):173. https://doi.org/10.3390/info11030173
Chicago/Turabian StyleKaß, Christina, Stefanie Schoch, Frederik Naujoks, Sebastian Hergeth, Andreas Keinath, and Alexandra Neukum. 2020. "Standardized Test Procedure for External Human–Machine Interfaces of Automated Vehicles" Information 11, no. 3: 173. https://doi.org/10.3390/info11030173
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