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Enhancing Ethanol Transportation Efficiency in the Eastern U.S. Network

This report provides a comprehensive analysis of EthX's ethanol transportation network across the eastern U.S. It covers 21 nodes, including 7 demand and 2 supply points, with daily demand exceeding 900 cars. We identify potential operational problems and recommend strategies for optimizing flow while minimizing costs. Key recommendations include increasing supply node capacity, addressing choke points, and exploring alternative transportation methods to improve overall network efficiency.

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Enhancing Ethanol Transportation Efficiency in the Eastern U.S. Network

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  1. CSX EthX Ethanol Transportation LT Brian Kendrick LT Corey Leewright LT Mike Blackman

  2. Agenda • Network Overview • Geographical representation of the network • Potential Operator Problem • Analysis of Network • Network Recommendations

  3. Identifying Our Network • EthX transports ethanol throughout the eastern half of the U.S. • 21 total nodes, 7 demand and 2 supply • 33 arcs both directed and undirected • Demand on the network is 904 cars per day • Objective – Maximize the flow while minimizing cost

  4. Model Assumptions • Each arc has associated cost * • Cij = Cost per day for movement of 1 car along arc • Supply nodes located in areas that have the most production facilities • Demand nodes are located at end points of major EthX. * • Each arc has a capacity constraint Uij • Capacity on each arc is ≤ capacity of node(i) • Capacities on the intermediary nodes modified to accommodate total demand on network . * Information provided by CSX website

  5. MAP 2 Network Legend: Green Nodes = Supply Nodes Yellow Nodes = Intermediaries Red Nodes = Demand Nodes

  6. Legend Legend Supply Nodes Intermediary Demand Nodes

  7. New York Daily News 12/07/2010 26 cars out of a 131 car train derailed near Chicago. 9 of these cars were loaded with Ethanol.

  8. Potential Operator Problem • A threat causes a delay of 12 hours but does not render this arc inoperable. • Penalty added to the overall cost to traverse the affected arc. (∑cij/m)*1.5 = 4232 • A terrorist attack is an actual attack which renders the affected arc inoperable.

  9. 96 -452 -452bbbjbbjbjbjb ------ 180 0 258 -452 31 219 Zero Threats on Network 65 Zero Threats on Network 0 55

  10. 96 -452 180 -258 -452 31 219 Three Threats on Network 65 Three Threats on Network 0 55

  11. 96 -452 180 258 -452 31 219 Five Threats on Network 65 Five Threats on Network 0 55

  12. 0 0 0 -452 0 0 0 0 -452 0 0 One Attack on Network One Attack on Network 65 0 0 0 0

  13. 0 0 -452 0 0 0 250 0 -452 0 219 0 Two Attacks on Network 0 Two Attacks on Network 0 0 0 0

  14. 0 0 96 0 0 -452 0 180 0 0 258 0 0 0 0 -452 0 0 31 219 0 0 0 Three Attacks on Network 65 Three Attacks on Network 0 0 0 0 55

  15. MAP 2 • Recommendations • Eliminate or increase capacity at choke points • Increase the number of Supply nodes • Incorporate short lines & regional lines • Alternative means of transportation

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