Compatibility between Trust and Non - Driving Related Tasks in UI Design for Highly and Fully Automated Driving

Acceptance of highly and fully automated vehicles will depend on system trust and the ability to comfortably engage in non-driving related tasks ( NDRT). We here hypothesize a potential trade-off between the two. The paper describes the development of two UI concepts based on trust factors derived from the literature and benchmarking of current ( concept) UIs to explore the balance between trust and engagement in NDRT. The concepts were inspired by the Valeo Mobius User Interface concept. The level of intrusiveness of trust related information was the key parameter differentiating the two concepts and was manipulated by adopting a single head up display versus a distributed display configuration also including a central console display. A comparative simulator study is underway to explore the balance between trust and comfortable engagement in NDRT and areas of future research are discussed.