THE PREDICTION FOR THE WOOD CONSTRUCTION WASTE WITH THE STUDY OF REGIONALITY OF SENDAI

This study reports on the prediction for the wood construction wastes of Sendai city based on the house ledgers of fixed asset tax rolls. The survival rate of wooden houses has been supposed to follow a Gompertz-Makeham distribution. The estimated data indicates that the survival rate in 1997 was lower than in 2002-2004. The life expectancy for wooden houses in exclusive residential district was estimated to be approximately 50 years, which is roughly two years longer than the average of whole Sendai city. The prediction for wooden construction have been classified according to destruction rate and new-building rate.