The facts on the ground: Evaluating humanitarian fleet management policies using simulation

Liyi Gu, Ilya O. Ryzhov, Mahyar Eftekhar

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


In humanitarian fleet management, the performance of purchase, assignment, and sales decisions is determined by dynamic interactions between the fleet composition, the time-varying and uncertain demands on the fleet, and the depreciation of the vehicles as they are exploited. We propose to evaluate purchase, assignment, and sales policies in a holistic simulation environment that directly models heterogeneous vehicle attributes and tracks their evolution over time. Using data from a large international humanitarian organization (LIHO), the simulator can identify the rationale behind seemingly ad-hoc decisions by field managers at LIHO. For instance, by selling vehicles later than LIHO recommends, managers are actually reducing their costs; similarly, managers decline to switch vehicles between mission types because the benefits to the operational cost turn out to be marginal at best.

Original languageEnglish (US)
Pages (from-to)681-702
Number of pages22
JournalEuropean Journal of Operational Research
Issue number2
StatePublished - Sep 1 2021


  • Humanitarian fleet management
  • Humanitarian logistics
  • Resource allocation
  • Simulation modeling

ASJC Scopus subject areas

  • Computer Science(all)
  • Modeling and Simulation
  • Management Science and Operations Research
  • Information Systems and Management


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