PROBLEM TO BE SOLVED: To provide technique capable of generating images of a road surface along a curve when a vehicle travels along the curve.SOLUTION: A road-surface image generation vehicle 10 includes: road-surface photographing means of photographing a road surface repeatedly; a first line camera 14 which photographs a road surface within a first visual field range 62; a second line camera 16 which photographs a road surface within a second visual field range 60 which intersects the first visual field range; means of photographing the road surfaces by the first line camera and second line camera in first timing, photographing the road surfaces by the first line camera and second line camera in second timing, specifying a matching point between a photographed image of the first line camera in the first timing and a photographed image of the second line camera in the second timing; specifying a matching point of a photographed image of the second line camera in the first timing and a photographed image of the first line camera in the second timing, and arraying images photographed by the road-surface photographing means based upon the first matching point and second matching point.
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