What is the primary purpose of a stop sign?

The primary purpose of a stop sign is to require drivers to come to a complete stop. This regulation is essential for ensuring safety at intersections where visibility may be limited or where traffic is crossing from different directions. By mandating a full stop, the sign allows drivers to assess the intersection for oncoming traffic or pedestrians, thereby reducing the likelihood of collisions and promoting safer driving behavior.

Stop signs are placed at intersections to control traffic flow and manage the right-of-way, which is crucial in preventing accidents. The requirement to stop helps create a predictable environment for all road users—drivers, pedestrians, and cyclists—thereby enhancing overall traffic safety.