#3709. Pedestrians Perceptions of Autonomous Vehicle External Human-Machine Interfaces

October 2026publication date
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Journal’s subject area:
Engineering
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Abstract:
The objective of this work was to better understand pedestrians understanding, trust, comfort, and acceptance of autonomous vehicle (AV) external human-machine interfaces (eHMIs). We administered a Likert scale survey to measure participants perceptions of the eHMIs and used ordinal logistic regressions to analyze the results. Although females generally reported higher levels of understanding, trust, comfort, and acceptance, males scores increased more significantly with the introduction of an eHMI. Text eHMIs outperformed nontextual interfaces, with participants noting the best perceptions with the text eHMI located on the AVs grille. Acceptance had little response to the eHMIs or stated AV interest and gender had little impact in the statistical models.
Keywords:
Communication; Humanautomation interaction; Technology acceptance; Trust in automation; Vehicle automation

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