Research Article
Mathematical Optimization Model for Truck Scheduling in a Distribution Center with a Mixed Service-Mode Dock Area
Table 1
Obtained results for the current B shift.
| | | Number of platforms | Makespan (min) | Lower bound (min) | Gap (%) | CPU time (sec) |
| | CPLEX | 1 | 1034.3 | 691.6 | 33.13 | 9000.00 | | 2 | 512.1 | 337.8 | 34.04 | 9000.00 | | 3 | 338.1 | 254.1 | 21.89 | 9000.00 | | 4 | 269.1 | 269.1 | 0.00 | 4.41 | | 5 | 269.1 | 269.1 | 0.00 | 3.00 | | 6 | 269.1 | 269.1 | 0.00 | 3.90 |
| | Gurobi | 1 | 1034.3 | 756.44 | 26.86 | 9000.00 | | 2 | 512.1 | 282.32 | 44.87 | 9000.00 | | 3 | 338 | 269.1 | 20.38 | 9000.00 | | 4 | 269.1 | 269.1 | 0.00 | 4.52 | | 5 | 269.1 | 269.1 | 0.00 | 2.39 | | 6 | 269.1 | 269.1 | 0.00 | 1.91 |
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Source: owner.
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