Martin Götze

A Careful Driver is One Who Looks in Both Directions When He Passes a Red Light Increased Demands in Urban Traffic

This paper summarizes the requirements of an HMI concept for urban areas including the vehicle components: Head-Up Display, the Instrument Cluster, and the Acceleration Force Feedback Pedal. The research addresses all qualitative and quantitative requirements of the aforementioned HMI components as well as urban areas and scenarios itself and warnings in general. The results contain almost 150 confirmed requirements by different sources and lay the foundation for future experiments in this field.

Evaluation of a new cockpit color concept under mesopic lighting for urban driving

This paper compares two different cockpit color concepts in mid-range cars under mesopic lighting. The analysis tries to confirm that new concepts with white illumination are no worse than the red concepts presently in use. Thirty participants took part in two experiments to determine whether they yielded the same results in terms of interpretability, readability, and differentiability of information. A modified PSSUQ was used to evaluate those factors. The subjective results show that there is no meaningful difference between a white and red color cockpit concept.

HMI Strategy – Recommended Action

Recommending assistance systems provide driving recommendations, with the goal to improve driving comfort and/or efficiency. The vehicle sensor system integrates information that is not available for the human drivers. The drivers benefit from the provided information because it increases their knowledge on the current and upcoming driving situation, which allows adaption to the driving behaviour. The chapter provides two empirical approaches to recommending assistance systems as presented in the UR:BAN project. The first part of the chapter includes the development of the HMI strategy of a traffic light assistant as an example for a recommending driver assistance system. The studies covered the development of the visual HMI concept and the investigation of the influence of platoon driving and complex traffic conditions on the evaluation of the assistant. The second part presents studies for the development of a generic, integrative HMI concept for different recommending assistance systems, considering a multimodal selection of HMI components (such as HUD, instrument cluster, and force feedback pedal).

Urban Driving: Where to Present What Types of Information – Comparison of Head-Down and Head-Up Displays

In this paper, a comparison is made of different categorizations of the content of information given with a warning presented, either on a head-up or head-down display, in the context of urban driving. The study shows a significant advantage of the head-up display in terms of workload. No significant difference for three warning scenarios was found in a driving simulator experiment where the reaction times and the standard deviation of the distance to lane center were compared. The results will help build a generic and integrative HMI concept in the future.

A Comparison of Two Cockpit Color Concepts Under Mesopic Lighting Using a CRT Task

This paper compares two different color lighting concepts (white and red) for the instrument cluster in mid-range cars while driving in urban areas under mesopic lighting. The main objective was to assess whether both concepts yielded similar results in terms of attention, interpretability and differentiability of information. For the experiment, 30 participants performed a Continuous Tracking Task as main task demanding continuous attention in order to model a real driving situation. The aim of the secondary task was to observe a cockpit display and perform a choice reaction time task. Statistical tests were performed to examine the error rates and reaction times for the CRT task. No significant differences were found. This study confirms that a white concept shows no disadvantages relative to a red color concept while driving under mesopic lighting conditions.