A two-stage stochastic programming model for a comprehensive disaster management problem

A periodic disaster preparedness model that incorporates mitigation, response, and recovery related decisions is proposed. The objective is to minimize the total cost of relief item transportation and shortage as well as recovery costs of buildings and links under a limited retrofitting budget. The problem is formulated as a two-stage stochastic programming model. While retrofitting decisions are the binary first-stage variables, relief flows and shortage amounts constitute continuous second-stage variables. An efficient solution approach that employs the integer L-shaped method is proposed.