The first part of the symposium examines basic cognitive functions in the context of traffic. Working memory is an essential requirement for situation awareness and is examined in an experimental approach with regard to the amount of information and the time passed since perceiving the information. The following two presentations focus on influencing factors for another basic perceptual aspect required for save behavior in traffic, namely time-to-collision estimation. The first of these examines the role of auditory and audiovisual cues while the second works on improving these estimations. The second part shifts to a more applied approach: The fourth presentation examines a neuro-VR approach to examine one of the most accident-prone situations in traffic, driving at intersections. The fifth presentation shifts the focus from cars to bicyclists. In line with current trends to increase the frequency of cycling, an experimental study examines which characteristics of roads are relevant for cyclists and why. The last presentation again shifts the focus to another future part of traffic, namely urban air vehicles and their acceptance. Overall, this symposium demonstrates the width of current traffic psychology research.