This project introduces a wearable-based behavioral diary tool designed to study pedestrian distraction and group dynamics at intersections. Using a smartwatch interface, the system enables participants to record brief, in-the-moment reflections during walking events, particularly as they approach and cross intersections with vehicular traffic. These real-time data points are paired with daily phone-based surveys to capture broader reflections on group coordination, environmental factors, and perceived safety. The tool is tailored to high-traffic environments such as college campuses where group walking is common.

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A central contribution of this work is its focus on group-level pedestrian behavior, a relatively underexplored factor in pedestrian safety research. The system also includes a behavioral nudge feature, which delivers subtle alerts to encourage awareness and group coordination before crossing. The combination of wearable interaction, ecological validity, and attention to social dynamics supports the development of future interventions aimed at reducing distraction-related pedestrian incidents.

The tool is currently in the pilot phase and is being refined for use in a diary-based field study following IRB approval.