地形データを用いた土木施設の景観影響評価指標

抄録

This study aims to develop new indices that indicate the effect of infurastructure on landscape.
The first index ‘Nomal visual size’ is the area of the projection of elements on the standized screen like a solid angle. The second is ‘Total visual size’, that is the sumation of all the nomal visual size of elements that are looked from the lattice view point on the earth. These indices have a merit which can compare with all cases.
These indices are tested in the case study of S dam and its reservoir project in Yamanashi prefecture. They are available and some characteristics are found.