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We have developed a light distribution evaluation system capable of analyzing automobile headlamp light distribution patterns, on-screen, by implementing computerized vehicle simulation graphic analysis. This system enables one to comprehensively evaluate the driver's vision, including peripheral vision, by analyzing quantified data on contrast, discomfort glare, and disability glare effecting target visibility (ie. of pedestrian and delineation lines), adding in background brightness (ie. of sky, road, and guard fence) and oncoming vehicle glare, and arranging the screen to be at the driving viewing angle to be analyzed. Also, the video screen brightness is adjusted to look more like actual outdoor conditions by using real data, gathered outdoors, as a basis of calculation. The road lines are given in compound curvature in the vertical and in the horizontal dimensions.