Road vehicle behavior identification method and system

The invention provides a road vehicle behavior identification method and system, and the method comprises the steps: inputting a target steering lamp, a position, attributes and motion parameters detected by a sensing system, lane line types, expressions and other information, a high-precision map, and the width, ID and attribute information of a road around a target vehicle provided by a positioning system; after information such as self-vehicle speed and acceleration provided by a self-vehicle sensing system is calculated and processed through a built-in algorithm of a road vehicle behavior recognition model, possible behaviors and corresponding probabilities of a target vehicle are recognized and judged in a structured road, and the function of judging the behaviors of the vehicle is achieved. According to the invention, behaviors of lane changing and the like of the road vehicle are identified and output to the subsequent trajectory generation module, so that input is provided for trajectory prediction of