The hub location problem is employed for many real applications, including delivery, airline and telecommunication systems and so on. This work investigates on hierarchical hub network in which a three-level network is developed. The central hubs are considered at the first level, at the second level, hubs are assumed which are allocated to central hubs and the remaining nodes are at the third ...

This paper presents a multi-objective model for location-transportation problem under uncertainty that has been developed to respond to crisis. In the proposed model, humanitarian aid distribution centers (HADC), the number and location of them, the amount of relief goods stored in distribution centers, the amount of relief goods sent to the disaster zone, the number of injured people transferr...

This study proposes a multi-period facility location formulation to maximize coverage while meeting reliability constraint. The constraint is chance limiting the probability of failure maintain desired service standard, commonly followed by emergency medical services and fire departments. Further, uncertainties in probabilities are incorporated utilizing robust optimization using polyhedral unc...