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Transportation Problem Required information: Supply/source points and their capacity

Transportation Problem Required information: Supply/source points and their capacity Demand/destination points and their capacity Unit cost of shipment for all routes Representation methods: Graphical Mathematical Transportation tableau. IE 416, Chap 7, Sept 2009.

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Transportation Problem Required information: Supply/source points and their capacity

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  1. Transportation Problem • Required information: • Supply/source points and their capacity • Demand/destination points and their capacity • Unit cost of shipment for all routes • Representation methods: • Graphical • Mathematical • Transportation tableau IE 416, Chap 7, Sept 2009

  2. IE 416, Chap 7, July 99

  3. IE 416, Chap 7, July 99

  4. IE 416, Chap 7, July 99

  5. Balanced Transportation = * If > add dummy demand point with capacity = - , Cij= 0 * If < add dummy supply point with capacity = - , Cij= penalty cost IE 416, Chap 7:1, July 98

  6. Added Transportation Practical Simplex Application Application Dummy Create balanceExtra capacity not used. Demand Cij = 0Do not produce or find new demand points Dummy Create balanceDemand not met. Supply Cij = penaltyCan find new supplier or add to the capacity IE 416, Chap 7, Feb. 99

  7. Transportation Heuristic Methods • Rule of thumb to find initial bfs • North West Corner (NWC) • Minimum Cost (MC) • Vogel Method • and many more IE 416, Chap 7:2, July 98

  8. IE 416, Chap 7, July 99

  9. Foster Generator, Optimal Shipment Plan From To Amount Unit TotalMathematical . Cost Cost Clev Bos 3500 3 10500X11 = 3500 Clev Chi 1500 2 3000X12 = 1500 Bed Chi 2500 5 12500X22 = 2500 Bed Lou 2000 2 4000X23 = 2000 Bed Lex 1500 3 4500X24 = 1500 York Bos 2500 2 5000X31 = 2500 Total cost 39500Z = 39500 IE 416, Chap 7, July 99

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