who has priority at a 4 way stop
All-way stop A motorist approaching an all-way stop is always required to come to a full stop before the crosswalk or stop line. In most jurisdictions that use all-way stops, pedestrians always have priority at a crosswalk, even if the crosswalk is not delineated with pavement markings. Within some U.S. jurisdictions, such as the state of Idaho,[1] bicyclists are exempt from the need to make a complete stop, but must give way to other vehicles as otherwise required by law. After a full-stop has been made, vehicles usually have the right-of-way to proceed through the intersection in the order that they arrived at the intersection. In the United States, if vehicles arrive at approximately the same time, each driver must yield to the drivers on their right.[2][3] Some areas have additional formal and informal rules which may or may not include special procedures for when all stop signs are approached simultaneously.