What is the purpose of a stop sign?

The purpose of a stop sign is to indicate that a complete stop is required at the intersection where it is placed. It is a critical traffic control device that ensures drivers come to a full halt before proceeding, which enhances safety for all road users. This requirement allows drivers to assess their surroundings, check for other vehicles or pedestrians, and make informed decisions about when it is safe to continue. Compliance with stop signs helps prevent accidents by ensuring that vehicles do not inadvertently collide with others that may have the right of way.

While slowing down and encouraging smooth traffic flow are important aspects of driving, they do not capture the specific legal requirement of a stop sign. Similarly, while stop signs may alert drivers to potential hazards in the intersection, their primary function is to enforce a complete stop to ensure safety and control of traffic.