Smart traffic refers to the intelligent command and dispatch of the entire urban traffic network. The specific performance is that each intersection has certain traffic flow dynamic perception, learning, growth, innovation, decision-making, regulation and detour capabilities; each vehicle has a unique identification (RFID); the driver can obtain the Traffic congestion forecast, you can also know the traffic congestion situation at any time. When there is a traffic accident, the information will be sent to every vehicle connected to the network; the parking lot status and the shortest path near the destination, the parking space is reserved, and the vehicle is automatically sensed and passed through the direct bank. Online bookkeeping; you can call the police at any time when you encounter robbers and rob a car; once the vehicle is stolen, you can know the location of the vehicle at any time, and the terminal in the car will prompt in time when there is a hidden safety hazard; the car needs to be prompted for weather changes and emergencies; Statistics and classification of information and traffic, vehicle age and violation information (information is automatically sent to relevant departments such as urban management), and dynamic adjustment of the switching time of traffic lights at crossings.