When people cross an intersection behind a big truck or bus, you can't see the traffic lights overhead. Especially in the last few seconds of the traffic light, it is easy for the driver to run the red light. So many of these concepts are impractical, and what we need is a solution that is easy to implement with existing technologies.This is the most interesting part of the design, moving the normal traffic lights to the ground。Ground led technology has been widely used in reality, it is not difficult to achieve it. LED TRAFFIC GUIDE LINE allows people to see the lights ahead of their normal distance from the car, and changes in signal density can tell the driver how much time is left.