ALT Crosswalks carve out a refuge where motorists must yield to people outside the vehicle. But crosswalks are creatures not just of engineering, but of law. The law everywhere protects pedestrians on foot in crosswalks, but that category is narrower than many likely expect. This Article shows that crosswalk protections vary widely and sometimes contradict the ordinary expectations of road users. Far from a safe harbor, the result is a form of jeopardy by law—a physical and legal space this Article calls Schrödinger’s crosswalk. This Article presents the first comprehensive study of crosswalk right-of- way law across all 50 U.S. states. Drawing on a systematic review of state statutes, administrative codes, and judicial decisions, it maps drivers’ legal obligations toward different categories of crosswalk users, including pedestrians on foot, wheelchair users, babies in strollers, bicyclists (conventional and electric), and e-scooter riders. In some states, drivers must yield t