Research Article
Mathematical Optimization Model for Truck Scheduling in a Distribution Center with a Mixed Service-Mode Dock Area
Table 2
Obtained results for the future scenario B shift.
| | | Number of platforms | Makespan (min) | Lower bound (min) | Gap (%) | CPU time (sec) |
| | CPLEX | 1 | 1290.60 | 766.7 | 40.59 | 9000.00 | | 2 | 640.2 | 312.17 | 51.24 | 9000.00 | | 3 | 419 | 264.1 | 36.97 | 9000.00 | | 4 | 315.2 | 264.1 | 16.21 | 9000.00 | | 5 | 269.1 | 264.1 | 1.86 | 11.89 | | 6 | 269.1 | 264.1 | 1.86 | 6.27 |
| | Gurobi | 1 | 1290.60 | 815.2 | 36.80 | 5331.00 | | 2 | 640.2 | 279.1 | 56.40 | 9000.20 | | 3 | 418.52 | 267.02 | 36.20 | 9000.20 | | 4 | 315.4 | 269.1 | 14.68 | 9000.20 | | 5 | 269.1 | 265.49 | 1.34 | 15.8 | | 6 | 269.1 | 268.95 | 0.05 | 7.53 |
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Source: owner.
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