A lexicographical goal programming based decision support system for logistics of Humanitarian Aid

Abstract

Humanitarian logistics, Goal programming, Multicriteria decision making, 90B06, 90C29,

A lexicographical dynamic flow model for relief operations

“…The model provides a realistic schedule for the distribution of humanitarian aid taking into account goals related to quantity to be distributed (effectiveness), cost, time and equity. This model builds upon the static model introduced in Ortuño et al 17 by considering a time horizon divided in periods of time that allows the model to be much closer to the operation scheduling.…”

“…(2) The validation of the proposed approach in a realistic case study based on the Haiti 2010 earthquake. (3) The comparison between the proposed dynamic model and the static one presented in Ortuño et al 17 , also based on the Haiti case study. (4) The computational experiments which suggest the strategy of using the static flow model to estimate the number of time periods to be used by the dynamic model.…”

“…For this purpose, we present in this paper a dynamic flow model, building upon the one presented in Ortuño et al 17 by considering a time horizon divided in periods of time. That model was able to provide solutions based on load and vehicle flows that could be used as indications of how to proceed, but as all the static flow models, they do not provide a realistic scheduling.…”

“…The aim of this section is to compare the proposed dynamic model with the static one proposed in Ortuño et al 17 , and also to study how they can be coordinated to improve their performance. This is done by using a realistic base case study to illustrate how the models could be used in practice (Section 5.1), and also a testbed created from that base case, that allows for a more comprehensive computational study (Section 5.2).…”

“…In Ortuño et al 17 a static flow model to obtain a planning of the humanitarian aid distribution is presented, managing up to six conflicting criteria through a lexicographic goal programming model. In this paper, a dynamic flow model that builds upon that static model is presented, allowing to obtain an operation scheduling through a time horizon.…”