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논문 기본 정보

자료유형
학술저널
저자정보
Herbert Kopfer (University of Bremen) Xin Wang (University of Bremen)
저널정보
대한산업공학회 대한산업공학회지 대한산업공학회지 제35권 제1호
발행연도
2009.3
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1 - 14 (14page)

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초록· 키워드

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The efficiency of transportation requests fulfillment can be increased through extending the problem of vehicle routing and scheduling by the possibility of subcontracting a part of the requests to external carriers. This problem extension transforms the usual vehicle routing and scheduling problems to the more general integrated operational transportation problems. In this contribution, we analyze the motivation, the chances, the realization, and the challenges of the integrated operational planning and report on experiments for extending the plain Vehicle Routing Problem to a corresponding problem combining vehicle routing and request forwarding by means of different sub-contraction types. The extended problem is formalized as a mixed integer linear programming model and solved by a commercial mathematical programming solver. The computational results show tremendous costs savings even for small problem instances by allowing subcontracting. Additionally, the performed experiments for the operational transportation planning are used for an analysis of the decision on the optimal fleet size for own vehicles and regularly hired vehicles.

목차

1. Introduction
2. Expansion of Vehicle Routing Problems by Subcontracting
3. Approaches for the Integration of the Clusters
4. A Mathematical Model for Combined Vehicle Routing and Forwarding
5. Computational Experiments
6. Conclusions and Future Research
References
Appendix

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UCI(KEPA) : I410-ECN-0101-2013-530-003637778