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Social interactions were always part of the driving task, but the introduction of vehicle-to-vehicle and vehicle-to-infrastructure communication opens up new possibilities for cooperative interactive driving. It enables drivers to coordinate their maneuvers cooperatively with other involved traffic users. To ensure drivers’ acceptance of such automated systems it is necessary to understand the underlying mechanisms of human cooperation in traffic. In this experiment, we investigate potential influencing factors on the willingness to behave cooperatively in a lane change situation on a highway. In a video-based study, we manipulated the costs of cooperation, the situation’s criticality for the lane-changing vehicle and the way in which the intention to change the lane was indicated. Cooperative behavior is influenced by lower costs, a higher situation’s criticality and by signaling the intention to lane change. These results offer insights that may be used in the developing process of Human Machine Interfaces (HMI) for cooperatively interacting vehicles

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Driving with foresight is essential for road safety. Anticipating upcoming events and intended maneuvers of other traffic participants requires the perception and processing of meaningful and valid cues. To provide insights into the cognitive mechanisms of anticipation, we investigated the effect of cognitive load, experience and cue characteristic on the anticipation of upcoming lane changes in urban driving scenarios. A two-step reaction method gathered low and high certainty anticipatory reactions of student and ambulance drivers. Results indicated that different anticipatory cues affected anticipatory performance. Target cues highly associated with the intended behavior of another traffic participant increased while context cues in the surrounding environment seemed to hamper anticipatory reactions. Furthermore, high cognitive load prolonged the latencies of low certainty anticipation but did not affect the performance quality. This initial intuition of an upcoming lane change was indicated earlier by experienced than by inexperienced drivers. These findings enhance the understanding of the human process of anticipation in dynamic uncritical traffic situations.