상세정보
학술지
A Hybrid Hub-and-Spoke Postal Logistics Network with Realistic Restrictions: A Case Study of Korea Post
- 저자
- 이정훈, 문일경
- 발행일
- 201409
- 출처
- Expert Systems with Applications, v.41 no.11, pp.5509-5519
- ISSN
- 0957-4174
- 출판사
- Elsevier
- 협약과제
- 14MC1100, SMART Post 구축 기술 개발, 정훈
- 초록
- Postal logistics has a complex transportation network for efficient mail delivery. Therefore, a postal logistics network consists of various functional sites with a hybrid hub-and-spoke structure. More specifically, there are multiple Delivery & Pickup Stations (D&PSs), multiple Mail Processing Centers (MPCs), and one Exchange Center (EC). In this paper, we develop two mathematical models with realistic restrictions for Korea Post for the current postal logistics network by simultaneously considering locations and allocations. We propose an Integer Linear Programming (ILP) model for transportation network organization and vehicle operation and a Mixed Integer Linear Programming (MILP) model that considers potential ECs for decision making while simultaneously regarding the EC location, transportation network organization, and vehicle operation. We use modified real data from Korea Post. Additionally, we consider several scenarios for supporting EC decision makers. The proposed models and scenarios are very useful in decision making for postal logistics network designers and operators. © 2014 Elsevier Ltd. All rights reserved.
- KSP 제안 키워드
- Case studies, Decision makers(DMs), Functional sites, Integer linear programming(ILP), Mathematical model, Mixed-Integer Linear Programming(MILP), Network organization, Real data, decision making, hub-and-spoke, logistics network