Research Article
Automated Container Terminal Production Operation and Optimization via an AdaBoost-Based Digital Twin Framework
Table 4
Test results of conventional and DT-based operations for large-scale problems.
| | Performance evaluation indicator | Conventional terminal operation method | DT-based terminal operation method | Improvement (%) |
| | Number of AQC/AGV/AYC | 4/10/6 | 4/10/6 | — | | Number of tasks | 120 | 120 | — | | AQC operation time (s) | 7266 | 5028 | 30.80 | | AGV turnaround time (s) | 8973 | 6492 | 27.64 | | AYC operation time (s) | 7768 | 4934 | 36.48 | | AGV waiting time (s) | 473 | 195 | 58.77 | | AQC operational efficiency (%) | 22.14 | 36.71 | 14.57 | | AGV turnover rate (car/h) | 3.93 | 5.68 | 1.75 | | Number of failures | 3 | 1 | 66.6 | | System time-consuming (s) | 428 | 593 | −38.55 | | Total operation time (s) | 24007 | 16454 | 31.46 |
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