Optimal Control Strategy for Relief Supply Considering Information and Demand Uncertainty after a Major Disaster

Riki Kawase, Junji Urata, Takamasa Iryo

Research output: Contribution to journalConference articlepeer-review

Abstract

Humanitarian logistics is important for minimizing the damage after a disaster. In Japan, based on past disasters, three empirical control strategies related to humanitarian logistics have been proposed: two relief transportation strategies, and an information strategy without ICT. This paper reveals the mathematical properties of these empirical strategies using an analytic model with closed-form solution. Our approach is based on the stochastic optimal control theory that has never been applied for analyzing humanitarian logistics. Specifically, we formulate the inventory distribution problem considering demand uncertainty as a stochastic optimal control problem with the objectives of minimizing inventory holding and handling costs. Additionally, we consider information uncertainty after a disaster using the Bayesian updating process. This process, by updating at different intervals among depots, models information asynchrony caused by not using ICT. Finally, we analyze the optimal control strategy to reveal the mathematical properties of three empirical strategies. Our results clarify that the two empirical transportation strategies are effective. However, we suggest that in the empirical information strategy without ICT the information paradox, wherein the system gets worse by using information, may occur.

Original languageEnglish
Pages (from-to)31-38
Number of pages8
JournalIFAC-PapersOnLine
Volume52
Issue number6
DOIs
Publication statusPublished - 2019
Externally publishedYes
EventIFAC Workshop on Control of Transportation Systems, WCTS 2019 - Haifa, Israel
Duration: 2019 Jun 302019 Jul 1

Keywords

  • Bullwhip effect
  • Humanitarian logistics
  • Information systems
  • Optimal control
  • Stochastic control

ASJC Scopus subject areas

  • Control and Systems Engineering

Fingerprint Dive into the research topics of 'Optimal Control Strategy for Relief Supply Considering Information and Demand Uncertainty after a Major Disaster'. Together they form a unique fingerprint.

Cite this