VR has been used in every phase of the Tsunashima SST project, from the original concept stage to the actual design diagrams. All drawings, models, and CG images that were previously prepared separately for each phase can now be presented together as 3D data. VR also makes it possible to freely move and view the 3D images from any angle, as if actually walking around the town or looking down on it from above. In addition, multiple options for colors, shapes, heights, sizes, and all other design elements that affect the town’s appearance can be input and easily interchanged for comparison.