This solution connects traffic controllers at multiple intersections to a traffic control center through Ethernet and 4G to achieve unified management. Under the condition that GPS guarantees a unified time, multi-nodal coordination is achieved through the Noble OPTO 's dedicated green wave band algorithm. Greatly enhance the efficiency of intersections. The entire system can be seamlessly connected to the Nobel OPTO second generationController system, which can provide a full set of traffic management clients and data center solutions.