Right-of-way rules, together with courtesy and common sense, help to promote traffic safety. Vehicles often come into conflict with other vehicles and pedestrians because their intended courses of travel intersect, and thus interfere with each other's routes. The general principle that establishes who has the right to go first is called "right of way."
Signs, signals, markings and other features are often used to make priorities explicit. Learn how to act at uncontrolled intersections, T-intersections, and school zones, and how to use common courtesy.