Chapter08s - MSB 354 8S The Transportation Model 8-1...

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MSB 354 8S The Transportation Model 8-1
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8S-2 Learning Objective Describe the nature of a transportation problem Set up transportation problems in the general linear programming format Interpret computer solutions
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8S-3 Requirements for Transportation Model List of origins and each one’s capacity List of destinations and each one’s demand Unit cost of shipping Note: Text book’s online learning center contains a module that provides detailed instruction on the transportation model
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8S-4 Transportation Model Assumptions 1. Items to be shipped are homogeneous 2. Shipping cost per unit is the same 3. Only one route between origin and destination
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8S-5 The Transportation Problem 3 factories and 4 warehouses D (demand) D (demand) D (demand) D (demand) S (supply) S (supply) S (supply) Figure 8S.1
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8S-6 A Transportation Table Factory 1 can supply 100 units per period Total supply capacity per period Total demand per period Warehouse Demand 4 7 7 1 100 12 3 8 8 200 8 10 16 5 150 450 450 80 90 120 160 A B C D 1 2 3 Factory Warehouse B can use 90 units per period Table 8S.1 Demand Supply
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8S-7 Special Problems Unequal supply and demand Dummy: Imaginary number added, is equal to the difference between supply and demand when these are unequal
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8S-8 Summary of Procedure Make certain that supply and demand are equal Develop an initial solution using intuitive, low-cost approach: Northwest corner method, least cost method, Vogel’ approximatiom
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Chapter08s - MSB 354 8S The Transportation Model 8-1...

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