A decisive factor for effective driver awareness and warning systems is the visualization of impor- tant and safety critical information for the driver. In previous work, we introduced a flexible two- component system that can visualize real time data from vehicle-to-x (V2X) communication [1]. In order to maximize the overall performance and reliability, the system consists of a vehicle-integrated V2X communication unit (onboard unit, OBU), and a personal portable device (PPD) which is used for conveying the information to the driver. The focus of this paper is on the application running on the PPD. The mobile application supports some of the so-called ‘day-one use cases’ that are considered to create a sound basis at the beginning of V2X deployment. Based on our experiences during the development and the results from a laboratory user study, key findings are summarized and recommendations for the design of a V2X- based visualization solution are given. The main aspect of our examination is the human-machine interface. Specifically, the user interface, text-to-speech support, mode of warning presentation and selection of itinerary-related information are considered.     «

A decisive factor for effective driver awareness and warning systems is the visualization of impor- tant and safety critical information for the driver. In previous work, we introduced a flexible two- component system that can visualize real time data from vehicle-to-x (V2X) communication [1]. In order to maximize the overall performance and reliability, the system consists of a vehicle-integrated V2X communication unit (onboard unit, OBU), and a personal portable device (PPD) which is used for...     »