Journal
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
Volume 68, Issue 10, Pages 9438-9450Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TVT.2019.2933601
Keywords
Automobiles; Navigation; Autonomous vehicles; User experience; Visualization; Reliability; Autonomous vehicles; human-machine interaction; driving simulator; user experience; virtual reality
Categories
Funding
- VR@POLITO initiative
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The investigation of factors contributing at making humans trust Autonomous Vehicles (AVs) will play a fundamental role in the adoption of such technology. The users ability to form a mental model of the AV, which is crucial to establish trust, depends on effective user-vehicle communication; thus, the importance of Human-Machine Interaction (HMI) is poised to increase. In this work, we propose a methodology to validate the user experience in AVs based on continuous, objective information gathered from physiological signals, while the user is immersed in a Virtual Reality-based driving simulation. We applied this methodology to the design of a head-up display interface delivering visual cues about the vehicles sensory and planning systems. Through this approach, we obtained qualitative and quantitative evidence that a complete picture of the vehicles surrounding, despite the higher cognitive load, is conducive to a less stressful experience. Moreover, after having been exposed to a more informative interface, users involved in the study were also more willing to test a real AV. The proposed methodology could be extended by adjusting the simulation environment, the HMI and/or the vehicles Artificial Intelligence modules to dig into other aspects of the user experience.
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