Method for detecting curve lane to which vehicle belongs through traffic radar

The invention discloses a method for detecting a curve lane to which a vehicle belongs through a traffic radar, and the method comprises the steps: calculating the coordinate information of each lane line on a straight lane according to the number of lanes, the width of the lanes and the distance of a starting line of the curve, and enabling the distance of the starting line of the curve to be the vertical distance between the starting part of each curve and the radar; on the curve lanes, the radius of each curve lane and the coordinates of the curve end point are calculated according to the curve angle and the curve length; and judging whether the vehicle is in a straight road or a curve according to the vehicle driving track position coordinates, if the vehicle is in the curve, calculating the straight-line distance between the vehicle position and the circle center of the curve, and comparing the straight-line distance with the radius of each curve lane so as to judge the lane to which the vehicle belongs.