Decision support system for storm design level based on inundation damage simulation and risk analysis using GIS

M. Morita & K. Yamashita
To decide a storm design level for flood prevention in urban areas is a crucial task for local governmental engineers. The objective of this study is to present a risk analysis method for storm design level decisions. The concept of \342\200\234risk\342\200\235 is defined as the product of flood damage and its occurrence probability. The study also presents a flood damage prediction system using GIS to calculate flood damages for any design storms with different return...