Final answer:
At a 4-way stop, the first vehicle to arrive has the right of way, or the vehicle on the right if they arrive simultaneously. In emergencies, laws may provide exceptions to traffic signals.
Step-by-step explanation:
When a driver reaches a 4-way stop, the vehicle that arrived first has the right of way. If two vehicles arrive at the same time, the one on the right has the priority. If directly opposite each other, a vehicle going straight has precedence over one turning left. In an emergency situation, such as when a passenger is about to give birth, common sense and state laws often provide exceptions to traffic laws for medical emergencies, allowing for a red light to be safely disregarded after stopping and ensuring no other traffic is present. Always proceed with caution at intersections and obey traffic signals unless it is a legally justified emergency.
When a driver reaches a 4-way stop, the vehicle that has the right of way is determined by the rule of first come, first served. In other words, the first vehicle to come to a complete stop at the intersection has the right to proceed first. If two vehicles arrive at the same time, the vehicle on the right has the right of way. If three vehicles arrive at the same time, the vehicle that arrived first goes first, followed by the vehicle to its right, and then the vehicle to its left. If all vehicles arrive at the same time, they must yield to each other in a clockwise order.