2019 Volume 75 Issue 2 Pages I_193-I_200
The plan to maintain green in the town is attractive plan from the viewpoint of landscape and the control of heat island phenomenon. In addition, green is said to have the effect of delaying and preventing the spread of fire. For example, burns due to green have been reported in numerous actual fires. In this study, based on the literature on the shielding power of trees, we developed an interface of the data input part of green such as evergreen trees, deciduous trees and hedges. Specifically, we classified the parameters that make up trees, and developed a data input creation system that takes into consideration tree species and tree shapes. Finally, using the developed system, we evaluated the effects of existing greenery, placement of hedges, setback, removal and planting of vacant houses, and tree planting around open spaces in Chigasaki City, Kanagawa Prefecture. As a result of them, it became clear that the existing greenery has a great effect of preventing the spread of fire. In addition, it was able to quantitatively and visually show that the fire spread delay prevention effect by the arrangement of hedges is also large.
