Optimization of Emergency Material Warehouse Location from Potential Earthquake

Abstract

The problem in earthquake disaster management in West Java Province arose due to the location of emergency material warehouses which have been centered in the Bandung area. In disaster conditions, this can cause delays in aid distribution, increased logistics costs, and a high risk of damage to the warehouse because the location has not considered aspects of disaster vulnerability. Previous studies generally only focused on aspects of warehouse opening costs and capacity, without considering disaster risk factors. To answer these challenges, this paper proposes a conceptual model for optimizing warehouse location placement and emergency material distribution by considering earthquake risk. The model is developed using the Mixed-Integer Programming (MIP) approach, which integrates a risk-based clustering method with a material allocation scheme to selected warehouses. The main objective of this model is to determine the optimal warehouse location by considering travel time efficiency, disaster risk level, and logistics distribution costs. In addition, this model is also designed to evaluate various earthquake event scenarios and estimate material needs in each affected cluster.