When a Stop Ahead sign is displayed, what action must drivers take?

When a Stop Ahead sign is displayed, it serves as a warning to drivers that they are approaching an intersection where they will need to come to a complete stop. The intention of this sign is to alert drivers in advance so they can reduce their speed and prepare for the upcoming stop sign. This proactive approach helps to ensure safety, allowing drivers to assess the situation at the intersection—such as checking for pedestrians, other vehicles, and obstacles—before making the necessary stop. Preparing to stop means reducing speed and being fully aware of the traffic conditions, which is crucial for safe driving in scenarios where traffic control devices are present.