"At first glance, it seemed an absurd way to make traffic safer, and Mockus was ridiculed in the press for pursuing it. But gradually, by making fun of drivers and pedestrians who didn’t follow basic rules and celebrating those who did, the mimes managed to transform the entire traffic culture of the city, successfully infusing Bogotá’s streets with common sense — or, rather, a sense of the commons."
https://beautifultrouble.org/toolbox/tool/replacing-cops-with-mimes/