Felix Wilhelm Siebert received the M.Sc. degree in human factors from the Technische Universität Berlin, Germany, and the Ph.D. degree in psychology from the Leuphana University of Lüeneburg, Germany. He holds a postdoctoral position with the Department of Psychology, Friedrich-Schiller University of Jena, Germany. His research interests include safety of vulnerable road users and impact of new forms of mobility on transport systems.