Designed and executed a complex study to determine the effectiveness of the pedestrian warning system known as the LOOK! campaign funded by NYC DOT. This study utilized existing and updated observational methods and mental models of pedestrian behavior to determine whether or not the proposed graphic warning system was effective. The study produced robust insights into NYC pedestrian behaviors as a function of the LOOK! solution and other factors. Mauro Usability Science funded this research in conjunction with the New School for Social Research.