Road traffic signal controller system with streetcar priority control function

The invention relates to a road traffic signal controller system with the streetcar priority control function. The road traffic signal controller system comprises go-ahead traffic lights and front traffic lights, wherein the go-ahead traffic lights and the front traffic lights are used for indicating the driving state of a streetcar, the go-ahead traffic lights are located at a road intersection, the front traffic lights are located in front of the go-ahead traffic lights, a request detector is further arranged on a driving track of the streetcar and located in front of the front traffic lights, the request detector and the streetcar are both electrically connected with a streetcar interaction unit, the front traffic lights and the go-ahead traffic lights are both connected with a signal machine front end unit, and the streetcar interaction unit is connected with a traffic signal machine through the signal machine front end unit. Through the road traffic signal controller system, hybrid control over streetcars and social vehicles can be achieved, the priority of passing of streetcars can be effectively controlled, and the road traffic signal controller system is wide in application range, safe and reliable.