A stop sign is a red, octagonal traffic sign that tells drivers to come to a complete stop at an intersection. It is usually placed where roads meet, helping to prevent accidents by ensuring that vehicles yield to others. The bright color and clear shape make it easy to see, even from a distance. When a driver approaches a stop sign, they must look for other cars, pedestrians, or cyclists before proceeding. This rule is important for road safety and helps everyone share the road responsibly. Following the instructions of a stop sign is essential for keeping both drivers and pedestrians safe.