For example, as illustrated in FIG. 7A, the first display device 3 displays a symbol image 37 that indicates a travel course of the own vehicle as superimposing the symbol image 37 to a road in actual scenery 36 viewed through the front wind shield 15. Here, the travel course represents a course for the own vehicle to actually travel on a lane of a road with steering thereof controlled. The symbol image 37 is generated by that the display control unit 5 to which travel information of the own vehicle is input from the automated driving control unit 7 of the automated driving system 2 processes image data obtained from the display information storing portion 6, and then, is projected to the main display area 31 on the front windshield 15 by the HUD device 22.