What does a stop sign require drivers to do?

A stop sign requires drivers to come to a complete stop. This means that when a vehicle approaches a stop sign, the driver must reduce their speed to zero before proceeding. The purpose of the stop sign is to ensure that drivers are fully aware of their surroundings and can check for other vehicles, pedestrians, and traffic conditions before continuing.

Yielding, as mentioned in one of the other choices, would imply that a driver can proceed without stopping if no other vehicles or pedestrians are present, which is not the case with a stop sign. Additionally, speeding up or merely slowing down does not fulfill the requirements set by a stop sign either; the vehicle must fully stop. This regulation is critical for maintaining safety at intersections where stop signs are placed, as they frequently control cross traffic and ensure orderly merging of vehicles.