2014 年 52 巻 Supplement 号 p. O-295-O-296
Walking is an important factor in good health. People can have good experiences when walking with their friends, shopping, sightseeing, and so on. However, some people may lose the ability to walk because of traffic accidents or falls. Some accidents are due to properties of the landscape such as steep hills and places with poor visibility. If people recognize specific risks before walking, then they may avoid such accidents. When, people can see the road information using a smartphone or PC. However, such equipment is not friendly for elderly people and children. In this research, authors developed special mobile data viewer for such people.