A railway car comprising a steerable truck and a bolster mounted to the car body, the steerable truck having a truck frame which rotatably supports a front wheelset positioned on a front side of the truck frame in the direction of travel and a rear wheelset positioned on a rear side in the direction of travel through axle boxes, and a truck frame steering unit for controlling a steering angle of at least the rear wheelset when traveling along a curved track in the direction of travel, characterized in that when the truck is traveling along a curved track, (a) the truck frame is steered so as to be aligned with the tangential direction of the curved track, and / or (b) the yawing angle of the truck frame, which is the angle formed in a horizontal plane between the radial direction of the curved track and the centerline of the truck frame in the left and right direction, is decreased, by controlling the steering angle of the rear wheelset by the truck frame steering unit so that the steering angle of the rear wheelset is larger than the steering angle of the front wheelset, wherein control of the steering angle of the rear wheelset by the truck frame steering unit is carried out by a link mechanism mounted on the truck frame, the link mechanism comprising: 1) a pair of first links, 2) a pair of steering levers, the pairs of first links and steering levers connecting the rear wheel set to the truck frame and to the bolster; and 3) a pair of second links, each of which connects the steering lever and an axle box which rotatably supports the rear wheelset; and first connection points, each of which connecting a respective first link and a respective steering lever of the respective pairs of first links and steering levers and being used as a fulcrum, second connection points, each of which connecting a respective steering lever and a respective second link of the respective pairs of steering levers and second links and being used as a point of effort, and third connection points, each of which connecting the truck frame and a respective steering lever and being used as a point of load, the steering angle of the front and rear wheelsets (1f, 1r) being defined as the angle between an imaginary straight line connecting the center of the truck frame and the center of a circular arc defined by the curved track in a horizontal plane and the centerline of the front and rear wheelset (1f, 1r), respectively. (a) the truck frame is steered so as to be aligned with the tangential direction of the curved track, and / or (b) the yawing angle of the truck frame, which is the angle formed in a horizontal plane between the radial direction of the curved track and the centerline of the truck frame in the left and right direction, is decreased, by controlling the steering angle of the rear wheelset by the truck frame steering unit so that the steering angle of the rear wheelset is larger than the steering angle of the front wheelset, 1) a pair of first links, 2) a pair of steering levers, the pairs of first links and steering levers connecting the rear wheel set to the truck frame and to the bolster; and 3) a pair of second links, each of which connects the steering lever and an axle box which rotatably supports the rear wheelset; and first connection points, each of which connecting a respective first link and a respective steering lever of the respective pairs of first links and steering levers and being used as a fulcrum, second connection points, each of which connecting a respective steering lever and a respective second link of the respective pairs of steering levers and second links and being used as a point of effort, and third connection points, each of which connecting the truck frame and a respective steering lever and being used as a point of load,