1 Introduction and Approach
Automated driving (AD) technology is currently on the rise and a main focus of recent research in the automotive domain. Beside technical and legal challenges, it is also the public opinion towards AD that may hinder its advancement. People should trust the technology if they are expected to make use of it. Especially hard-to-predict environments like cities can lead to automated cars (ACs) having to react very suddenly with hard braking or steering maneuvers. This could be very uncomfortable for the driver and a source for loss of trust in the technology. Augmented reality (AR) interfaces might be a means to counter this issue. To this end, we propose an explanatory user interface (UI) that should give drivers information about what the car currently detects in the environment and how it is making what driving decisions. Such a UI may be helpful in the early stages of establishing and maintaining trust with skeptical drivers. Since we target a future use case, we also anticipate the availability of advanced display technology. Therefore, our proposed UI is intended for future windshield displays (WSDs), which can be regarded as head-up displays (HUDs) with a wide field-of-view (FOV).