For a successful implementation of autonomous vehicles to our roads, it is necessary to achieve not only successful communication with other motor vehicles and road infrastructure, but also successful communication with other road users, such as pedestrians, cyclists, etc. For this purpose, various concepts of external human-machine interaction are being developed, but there is no consensus in the field on which interfaces ensure the most efficient communication and/or evoke the greatest sense of safety. The purpose of this thesis is to explore several different eHMI concepts with the help of a user study and compare them according to a sense of security, efficiency and user experience.
As part of this diploma thesis, I conducted a web-based study (N = 20), that compared the participants feeling of safety, user experience and personal preference among eight eHMI concepts. Additionally, I compared whether previous driving experience has an effect on eHMI user experience. The results show that previous driving experience does impact the user experience of eHMI concepts as it differed between both groups. Despite that, both groups showed a significant preference for a singular eHMI concept.
The obtained results can serve as an insight into the familiarity with eHMI, their applicability and as a guideline for further and more extensive research on the use of eHMI in Slovenia.
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