A dynamic model for disaster response considering prioritized demand points

• Dynamic model for distributing relief items.
• Demand points with different dynamic priority values, budget constraints and isolated demand points.
• Distribution plan thought to be applied during a planning horizon with several time periods.
• Objective function that integrates demand urgency and unmet demand.
• Priority of demands is defined based on discretized version of deprivation costs.

This paper addresses the problem of distributing relief supplies after the occurrence of a disaster. We develop a dynamic model to serve demand, while prioritizing the response, according to the level of urgency of demand points. Our model is thought to be applied during a planning horizon and it considers dynamic demand, capacity constraints and priorities. To evaluate the applicability of our model, we use a real case study of a flood occurred in Colombia. We also test the computational solvability of our model and we propose and test different solution methodologies for solving larger instances of our problem.