The display control unit 5 displays, for example, a stop like mark 58 as illustrated in FIG. 16B to be matched with a position for the temporal stop on the road in the actual scenery viewed through the front windshield 15. An arrow of the symbol image 53 indicating the travel course for lane change is corrected so that the leading end thereof is matched with the stop line mark 58. Not limited to the mark illustrated in FIG. 16B, the stop line mark 58 may adopt any of a variety of shapes.