Research Article
A Heuristic Procedure for the Outbound Container Relocation Problem during Export Loading Operations
Table 1
Ratio of relocation movements to total movements of the procedures studied.
| Instance type | Number of containers | Number of tiers | S-R(1) | S-R(2) | S-R(3) | S-R(4) | Worst case scenario |
| 1 | 96 | 4 | 45.6% | 39.4% | 37.5% | 39.0% | 76.7% | 2 | 96 | 4 | 45.6% | 42.0% | 39.9% | 37.9% | 75.2% | 3 | 120 | 5 | 49.5% | 45.3% | 42.1% | 46.5% | 81.1% | 4 | 120 | 5 | 55.4% | 49.7% | 47.8% | 46.5% | 82.6% | 5 | 80 | 4 | 39.2% | 33.3% | 30.1% | 30.8% | 63.3% | 6 | 80 | 4 | 43.0% | 36.8% | 34.3% | 33.6% | 66.8% | 7 | 100 | 5 | 41.9% | 36.6% | 33.0% | 32.3% | 75.4% | 8 | 100 | 5 | 48.8% | 42.3% | 38.4% | 37.8% | 77.6% |
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