The Physics and Ethics of a Rolling Stop

In 1982, the state of Idaho legalized the "rolling stop," an adjustment to the rules of the road that lets cyclists treat stop signs as yield signs without becoming scofflaws. Nearly three decades later, the rule has a demonstrated track record of safety, but Idaho is still the only state with such a law. Maybe not much longer. Bike advocates in Oregon are working feverishly this week to gain passage of an "Idaho Stop" law of their own. Via BikePortland, this animation by Spencer Boomhower makes a compelling and visually dazzling case for the idea.