Speeding is one of the most common causes of road accidents around the world, and despite strict enforcement and penalties, many drivers continue to exceed the speed limit either deliberately or without realizing it. To address this persistent problem, authorities and communities have increasingly turned to the use of speed detector warning signs, which are digital devices designed to display a driver’s current speed in real time as they approach. These signs, often accompanied by visual messages such as “Slow Down” or symbols like smiley faces and flashing lights, may appear to be simple roadside tools, but their effect on driver behavior and accident prevention has been significant.