Specifically, as illustrated in FIG. 24A, the virtual image 81′ appears to move out frontward from a position just in front of the screen of the monitor device 24 and moves straightly to the position of the symbol image 79′ indicating the first stop line mark along the first portion of the symbol image 78′. Then, as illustrated in FIG. 24B, a virtual image 811′ stopped at the position of the symbol image 79′ performs lane change toward the road shoulder 71′ while moving backward along the second portion of the symbol image 78′ to move onto the planned parallel parking space indicated by the symbol image 77′, and then, stops at the position of the symbol image 80′ indicating the second stop line mark.