On Fleet Sizing and Distribution Policy of Transportation Equipments in Pure Hub-and-Spoke Networks : The Case of Compound Poisson Process

순 방사형 물류체계에서 수송장비의 보유대수 결정과 분배정책 : 복합포아송과정을 따를 경우

  • 서순근 (동아대학교 공과대학 산업시스템공학과) ;
  • 이병호 (부산정보대학 기계산업계열 공업경영 전공)
  • Published : 1999.09.01

Abstract

Fleet sizing and empty equipment redistribution are two of the most critical problems in managing a fleet of equipment over a transportation network. Where the demand pattern followed the compound Poisson process(CPP) which can be generated one or more at a time under homogeneous Poisson process(HPP), this paper presented a mathematical model to determine control parameters of a decentralized distribution policy and fleet size in case of the pure hub-and-spoke system, a popular form of a logistics system. and validated this model by simulation. That is, where the number of demanded equipments followed geometric and binomial distributions, respectively, cost models on the pure hub-and-spoke logistics system with deterministic trans-portation times, which could be solved analytically, were established and analyzed. We also compared the deterministic case with stochastic one that the transportation time follows some probability distributions.

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References

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