Busy narrow lanes often become a frequent occurrence of traffic accidents due to the lack of traffic lights. To solve this problem, a Korean designer designed a ground traffic signal: it relies on a built-in image sensor to identify pedestrians and vehicles at different intersections. After analyzing the speed of the movement, the number, color and flash of the LED lights are passed. Dynamic frequency to indicate traffic conditions in different directions. The greater the number of lights, the larger the nearby objects, the different colors distinguish pedestrians and vehicles, and the faster the flashing frequency of the lights, the faster the speed. Installed on the ground, this titanium alloy features a sleek sphere that is both intimate and reduces the pressure of the vehicle passing over its surface, protecting the built-in equipment.