Alfredo Moreno
An effective two-stage stochastic multi-trip location-transportation model with social concerns in relief supply chains
Moreno, Alfredo; Alem, Douglas; Ferreira, Deisemara; Clark, Alistair
Authors
Douglas Alem
Deisemara Ferreira
Alistair Clark
Abstract
© 2018 Elsevier B.V. The distribution of emergency aid from warehouses to relief centers to satisfy the needs of the victims in the aftermath of a disaster is a complex problem because it requires a rapid response to human suffering when resources are scarce amidst great uncertainty. In order to provide an effective response and use resources efficiently, this paper presents a novel model to optimize location, transportation, and fleet sizing decisions. In contrast with existing models, vehicles can be reused for multiple trips within micro-periods (blocks of hours) and/or over periods (days). Uncertainty regarding demand, incoming supply, and availability of routes is modeled via a finite set of scenarios, using two-stage stochastic programs. ‘Deprivation costs’ are used to represent social concerns and minimized via two objective functions. Mathematical programming based heuristics are devised to enable good-quality solutions within reasonable computing time. Experimental results based on data from the disastrous 2011 floods and landslides in the Serrana Region of Rio de Janeiro, Brazil, show that the model's novel characteristics help get aid faster to victims and naturally enforce fairness in its distribution to disaster areas in a humanitarian spirit.
Citation
Moreno, A., Alem, D., Ferreira, D., & Clark, A. (2018). An effective two-stage stochastic multi-trip location-transportation model with social concerns in relief supply chains. European Journal of Operational Research, 269(3), 1050-1071. https://doi.org/10.1016/j.ejor.2018.02.022
Journal Article Type | Article |
---|---|
Acceptance Date | Feb 8, 2018 |
Publication Date | Sep 16, 2018 |
Deposit Date | Feb 9, 2018 |
Publicly Available Date | Sep 17, 2020 |
Journal | European Journal of Operational Research |
Print ISSN | 0377-2217 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 269 |
Issue | 3 |
Pages | 1050-1071 |
DOI | https://doi.org/10.1016/j.ejor.2018.02.022 |
Keywords | operational research in disaster relief, location-transportation and fleet sizing, multiple trips, deprivation costs, MIP heuristics |
Public URL | https://uwe-repository.worktribe.com/output/871444 |
Publisher URL | https://doi.org/10.1016/j.ejor.2018.02.022 |
Files
Accepted version of EJOR-D-17-00325R2.pdf
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