Designing for enhanced trust through feedback mechanisms for takeover scenarios in semi-autonomous vehicles

Date

2025-8-29

Author

Ayvalı, Selin

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With advancing technology, autonomous systems that perform tasks with little or no human intervention based on environmental perception have emerged. In semi-autonomous vehicles, the transition of control between user and vehicle is critical for trust and safety. Appropriate perceived trust is essential for successful takeovers, and feedback mechanisms play a key role. Previous studies focused on technical aspects like timing or feedback modalities. This thesis explores how feedback design affects users’ perceived trust and safety during unintentional takeovers in critical situations. User research included think-aloud sessions on an itinerary and semi-structured interviews to gain deeper insights. Findings were compared with the literature to identify factors supporting appropriate trust and adoption. By focusing on user needs rather than only the vehicle’s actions and implementing more implicit feedback design approaches, the interaction between the user and the system can be improved. This leads to more accurate, calibrated trust, preparing users to respond effectively during critical takeovers and enhance overall perceived trust and safety

Subject Keywords

Autonomous vehicles, Perceived trust, Feedback mechanisms, Takeover, User experience

URI

https://hdl.handle.net/11511/116160

Collections

Graduate School of Natural and Applied Sciences, Thesis