Disaster recovery measurement framework:an application case of disaster recovery after hurricane Katrina

Disaster recovery process research is essential for decision-makers in post-disaster recovery and reconstruction strategy optimization.But there is not a uniform disaster recovery measurement framework,including the disaster recovery concept and identification method of disaster recovery process.Also,disaster recovery case studies are lacking.In view of these problems,this paper first improves the understanding of disaster recovery concept through the equilibrium theory of complex system,and then proposes a disaster recovery measurement metrics from four disaster impact dimensions,i.e.,social,economic,infrastructure and physical environment,as well as provides a disaster recovery process identification model.This paper improves the disaster recovery theory and measurement framework.Meanwhile,the disaster recovery case study of 2005 hurricane Katrina in Louisiana was analyzed.Results indicate that after more than six year's recovery,Louisiana still has not fully recovered according to the recovery measurement of Gross Domestic Product and population.Disaster recovery quantitative study is critical for the construction of disaster economic impact assessment model and the model parameters' validation,and is also beneficial to the disaster risk management.Further case studies are needed to further explore the disaster recovery mechanism.