Turning vehicles are a potential threat to pedestrians at intersections. As a possible countermeasure, an experimental auditory pedestrian signal was developed to prompt pedestrians to look for turning vehicles at the start of the walk signal. Analysis of observational data collected during the experiment shows that the auditory signal increased pedestrian-observing behavior and almost eliminated pedestrian motor vehicle conflicts at a signalized intersection. The presence of the auditory message appeared to prime pedestrians to respond more rapidly to turning vehicles.
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