This was during four Sundays of “open streets” (which means open to humans and closed to big, heavy motor vehicles) in a portion of Center City Philadelphia. But this works because people live nearby. People don’t really have to “walk to” the event because they live there. When cars are the only practical way to get around, most of the space has to be reserved for cars to maneuver and park (relatively) safely so you can’t have space for people too. It’s obvious, sure, but 100 years of oil-highway-car industry propaganda has brainwashed us to be blind to the realities of geometry. Take your red pills, people!