SPEEDI*
Barbara Ellmerer
*System for Prediction of Environmental Emergency Dose
SPEEDI, designed to predict the dispersal of radioactive materials based on forecasts by ERSS, is likely to have delayed the effective evacuation of residents in Fukushima Prefecture. The systems’ failure casts doubt on the government’s disaster-prevention policy, which said that the systems should be used to analyze and predict the amount and spread of radioactive material into the environment during a nuclear crisis.