The intervention began small. They persuaded a council member to let them pilot an experiment on a single corridor: a trio of streets that fed into the city’s busiest market. At dawn on a chilly Sunday, teams in reflective vests set bright, temporary signs and painted slender green connectors on asphalt where none had been before. The new markings narrowed certain lanes by a foot or two to create short loading bays, formalized a few right-turn slip lanes, and introduced staggered curb extensions that slowed cars gently but opened sightlines for pedestrians.