An Optimization Model for Single-Warehouse udMulti-Agents Distribution Network Problems under udVarying of Transportation Facilities: A Case Study

摘要

The transportation cost of goods is the highest day-to-day operational cost associated with the udfood industry sector. A company may be able to reduce logistics cost and simultaneously improve service udlevel by optimizing of distribution network. In reality, a company faces problems considering capacitated udtransportation facilities and time constraint of delivery. In this paper, we develop a new model of order udfulfillment physical distribution to minimize transportation cost under limited of transportation facilities. udThe first step is defined problem description. After that, we formulate a integer linear programming model udfor the single-warehouse, multiple-agents considering varying of transportation facilities in multi-period udshipment planning. We analyze problems faced by company when should decide policy of distribution due to udvarying of transportation facilities in volume, type of vehicle, delivery cost, lead time and ownership of udfacilities. We assumed transportation costs are modeled with a linear term in the objective function. Then, udwe solve the model with Microsoft Excel Solver 8.0 Version. Finally, we analyze the results with considering udamount of transportation facilities, volume usage and total transportation cost. ud udKeywords: physical distribution, shipment planning, integer linear programming, transportation cost, udtransportation facilities.