From Roadways to Shared Spaces: Extending Vehicle eHMI Research to Public Mobile Robots

초록

Public Mobile Robots (PMRs), including last-mile delivery, street-cleaning, and guide robots, are increasingly being deployed in shared public spaces such as sidewalks, corridors, and building entrances, where they must communicate and coordinate with nearby pedestrians. Unlike automated vehicles, PMRs operate in close proximity to people, introducing new challenges for intent communication, trust, and socially acceptable interaction. While the AutoUI community has established extensive knowledge on external Human-Machine Interfaces (eHMIs) for automated vehicles, it remains unclear how these principles transfer to PMRs. This workshop aims to examine the applicability of vehicle-based eHMI concepts to PMRs by identifying transferable design principles, challenges requiring adaptation, and new research directions. Through invited talks, comparative discussions, and scenario-based group activities, participants will develop a shared research agenda, propose preliminary design considerations for PMR eHMIs, and strengthen collaboration between the AutoUI and Human-Robot Interaction communities. © 2026 Copyright held by the owner/author(s).

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