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Notes on the Transportation Model. Reference. Harvey M. Wagner, Principles of Operations Research , Prentice-Hall, 1969, Library of Congress Number 76-82807. Transportation Model. a/k/a “Distribution Model” Linear optimization model Mathematical planning tool
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Reference • Harvey M. Wagner, Principles of Operations Research, Prentice-Hall, 1969, Library of Congress Number 76-82807 Notes - Transportation Model
Transportation Model • a/k/a “Distribution Model” • Linear optimization model • Mathematical planning tool • Get goods from point A to point B • In minimum time • At minimum cost • Original work to support rail transport as multiple route choices became available Notes - Transportation Model
n xij<= Si for 1 <= i <= m supply j=1 n xij <= Dj for 1 <= j <= n demand i=1 Σ Σ Mathematical Model m n i=1 j=1 minimumΣΣcijxij xij >= 0 for all I and j Notes - Transportation Model
Interpreting Supply Demand Notes - Transportation Model
What does this mean to IT • What is not being moved (physically) • Trucks • Trains • What is being moved is data • Along a network • From an origin • To a destination • Alternative choices • Minimize time • Balance traffic Notes - Transportation Model
Transportation Model Considerations • Direct versus indirect routing • Seasonal variations • Capacity limitations • Variable supply Notes - Transportation Model
Understanding the Applicability of the Transportation Model Notes - Transportation Model
Transportation Model Assignment • Complete the table on chart 8 to demonstrate the applicability of the transportation model by showing the parallels between moving goods via road or rail and moving information along a network. • Due Thursday, September 13th Notes - Transportation Model