Assignment #4: Case Problem "Stateline Shipping and Transport Company"
Answer Report 1
| Microsoft Excel 12.0 Answer Report | |||||
| Worksheet: [10 Assigment 4 solution-1.xls]Sheet1 | |||||
| Report Created: 8/26/2011 3:32:06 PM | |||||
| Target Cell (Min) | |||||
| Cell | Name | Original Value | Final Value | ||
| $C$13 | Cost = Whitewater | 0 | 2822 | ||
| Adjustable Cells | |||||
| Cell | Name | Original Value | Final Value | ||
| $C$5 | Kingsport Whitewater | 0 | 35 | ||
| $D$5 | Kingsport Los Canos | 0 | 0 | ||
| $E$5 | Kingsport Duras | 0 | 0 | ||
| $C$6 | Danville Whitewater | 0 | 0 | ||
| $D$6 | Danville Los Canos | 0 | 0 | ||
| $E$6 | Danville Duras | 0 | 26 | ||
| $C$7 | Macon Whitewater | 0 | 0 | ||
| $D$7 | Macon Los Canos | 0 | 0 | ||
| $E$7 | Macon Duras | 0 | 42 | ||
| $C$8 | Selma Whitewater | 0 | 1 | ||
| $D$8 | Selma Los Canos | 0 | 52 | ||
| $E$8 | Selma Duras | 0 | 0 | ||
| $C$9 | Columbus Whitewater | 0 | 29 | ||
| $D$9 | Columbus Los Canos | 0 | 0 | ||
| $E$9 | Columbus Duras | 0 | 0 | ||
| $C$10 | Allentown Whitewater | 0 | 0 | ||
| $D$10 | Allentown Los Canos | 0 | 28 | ||
| $E$10 | Allentown Duras | 0 | 10 | ||
| Constraints | |||||
| Cell | Name | Cell Value | Formula | Status | Slack |
| $C$12 | Shipped Whitewater | 65 | $C$12<=$C$11 | Binding | 0 |
| $D$12 | Shipped Los Canos | 80 | $D$12<=$D$11 | Binding | 0 |
| $E$12 | Shipped Duras | 78 | $E$12<=$E$11 | Not Binding | 27 |
| $G$5 | Kingsport Shipped | 35 | $G$5=$F$5 | Not Binding | 0 |
| $G$6 | Danville Shipped | 26 | $G$6=$F$6 | Not Binding | 0 |
| $G$7 | Macon Shipped | 42 | $G$7=$F$7 | Not Binding | 0 |
| $G$8 | Selma Shipped | 53 | $G$8=$F$8 | Not Binding | 0 |
| $G$9 | Columbus Shipped | 29 | $G$9=$F$9 | Not Binding | 0 |
| $G$10 | Allentown Shipped | 38 | $G$10=$F$10 | Not Binding | 0 |
The Transportation Model
| Stateline Shipping and Transport Company | |||||
| A model for shipping the waste directly from the 6 plants to the 3 waste disposal sites | Shipping Costs ($/per barrel) | ||||
| Plants | Waste Disposal Sites | Supply | Shipped | Plants | Waste Disposal Sites |
| A. Whitewater | B. Los Canos | C. Duras | A.Whitewater | B. Los Canos | C. Duras |
| 1. Kingsport | 35 | 1. Kingsport | 12 | ||
| 2. Danville | 2. Danville | ||||
| 3. Macon | 3. Macon | ||||
| 4. Selma | 4. Selma | ||||
| 5. Columbus | 5. Columbus | ||||
| 6. Allentown | 6. Allentown | ||||
| Demand | 65 | ||||
| Shipped | |||||
| Cost = | |||||
| Finish this | Minimize Z=$12X1A+ | ||||
| Finish this | Subject to: | Solution: | Finish this | ||
| X1A+X1B+X1C | = 35 | X1A = ? | |||
| = | |||||
| = | |||||
| = | |||||
| = | |||||
| = | |||||
| <= 65 | |||||
| <= | |||||
| <= | Z = | ||||
| Xij >= 0, i=1,2,3,4,5,6; j=A,B,C. | |||||
The Transshipment Model
| Stateline Shipping and Transport Company | |||||||||
| A transshipment model in which each of the plants and dispposal sites can be used as intermediate points | |||||||||
| Plants | Waste Disposal Sites | Supply | Shipped | ||||||
| 1.Kingsport | 2.Danville | 3.Macon | 4.Selma | 5.Columbus | 6.Allentown | A.Whitewater | B.Los Canos | C. Duras | |
| Plants | 1.Kingsport | 35 | 0 | ||||||
| 2.Danville | 26 | 0 | |||||||
| 3.Macon | 42 | ||||||||
| 4.Selma | 53 | ||||||||
| 5.Columbus | 29 | ||||||||
| 6.Allentown | 38 | ||||||||
| Waste disposal Sites | A.Whitewater | ||||||||
| B.Los Canos | |||||||||
| C. Duras | |||||||||
| Demand | 65 | 80 | 105 | ||||||
| Shipped | 0 | ||||||||
| Total Cost = | $ - 0 | ||||||||
| Shipping Costs ($/per barrel) | |||||||||
| Plants | Waste Disposal Sites | ||||||||
| 1. Kingsport | 2. Danville | 3. Macon | 4. Selma | 5. Columbus | 6. Allentown | A.Whitewater | B.Los Canos | C.Duras | |
| Plants | 1. Kingsport | 6 | 4 | 9 | 7 | 8 | 12 | 15 | 17 |
| 2. Danville | 6 | 11 | 10 | 12 | 7 | 14 | 9 | 10 | |
| 3. Macon | 5 | 11 | 3 | 7 | 15 | 13 | 20 | 11 | |
| 4. Selma | 9 | 10 | 3 | 3 | 16 | 17 | 16 | 19 | |
| 5. Columbus | 7 | 12 | 7 | 3 | 14 | 7 | 14 | 12 | |
| 6. Allentown | 8 | 7 | 15 | 16 | 14 | 22 | 16 | 18 | |
| Waste disposal Sites | A.Whitewater | 12 | 10 | ||||||
| B.Los Canos | 12 | 15 | |||||||
| C.Duras | 10 | 15 | |||||||
| Constraint at plant 1: | (x12+x13+x14+x15+x16+x1A+x1B+x1C) - (x21+x31+x41+x51+x61) = 35 | ||||||||
| out | in | ||||||||
| Constraint at West site A: | (x1A+x2A+x3A+x4A+x5A+x6A+xBA+xCA) - (xAB+xAC) <= 65 | ||||||||
| in | out | ||||||||
| Xij >= 0, i=1,2,3,4,5,6, A,B,C; j=1,2,3,4,5,A,B,C. |
Sheet3
| 35 |
| 26 |
| 42 |
| 53 |
| 29 |
| 38 |