Your mom was clear: when crossing the street you must look both ways, stay in crosswalks and for heaven's sake, avoid moving cars.
Or, maybe not.
Salt Lake City's Granary Row turned those timeless tips on their head this summer when it mixed people and moving vehicles. A video posted earlier this week shows the phenomenon, with drivers and pedestrians coming within inches of each other and acting like it's no big deal.
The reason this works is because the cars move slowly along a narrow space. That reduces the danger to pedestrians, and manages expectations; no one is suddenly jutting out in front of anyone else because it's understood as a shared space.