Designing Verbal Communication Content for External Human-Machine Interfaces (eHMI) in Autonomous Personal Mobility Vehicles (APMV): Politeness and Succinctness Resonate with Passengers Across Diverse Personalities

This paper addresses the challenge of designing verbal communication for External Human-Machine Interfaces (eHMI) in Autonomous Personal Mobility Vehicles (APMVs). Through user studies with passengers of diverse personality profiles, we find that polite and succinct verbal messages consistently resonate across personality types — providing concrete guidelines for personalized, human-centered eHMI design.

This work was conducted as part of the Master’s research at the Human Robotics Laboratory, Nara Institute of Science and Technology (NAIST), Japan.

Recommended citation: Dang, P. N. et al. (2025). "Designing Verbal Communication Content for External Human-Machine Interfaces (eHMI) in Autonomous Personal Mobility Vehicles (APMV): Politeness and Succinctness Resonate with Passengers Across Diverse Personalities." Preprint.
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