Research Article
Container Throughput Forecasting of Tianjin-Hebei Port Group Based on Grey Combination Model
Table 7
The forecasting data of the first step using the optimized FGM (1, 1) model (unit: 10,000 TEU).
| Year | Tian. r = 1 | Tian. norm. | Tang. r = 0.2 | Tang. norm. | Qin. r = 0.2 | Qin. norm. | Huang. r = 0.2 | Huang. norm. | Total r = 0.8 | Total norm. |
| 2015 | 1411.00 | 0.01 | 152.00 | 0.01 | 50.00 | 0.01 | 50.00 | 0.01 | 1663 | 0.01 | 2016 | 1432.00 | 0.03 | 205.99 | 0.23 | 52.15 | 0.08 | 59.50 | 0.32 | 1764.71 | 0.08 | 2017 | 1522.00 | 0.11 | 246.88 | 0.39 | 55.74 | 0.20 | 66.00 | 0.54 | 1882.89 | 0.15 | 2018 | 1618.00 | 0.20 | 276.80 | 0.51 | 58.64 | 0.30 | 69.81 | 0.66 | 2008.98 | 0.23 | 2019 | 1721.00 | 0.29 | 298.48 | 0.59 | 60.74 | 0.36 | 71.77 | 0.73 | 2143.51 | 0.32 | 2020 | 1829.00 | 0.39 | 313.97 | 0.66 | 62.18 | 0.41 | 72.54 | 0.75 | 2287.06 | 0.41 | 2021 | 1945.00 | 0.50 | 324.76 | 0.70 | 63.08 | 0.44 | 72.52 | 0.75 | 2440.22 | 0.51 | 2022 | 2068.00 | 0.61 | 331.97 | 0.73 | 63.58 | 0.46 | 72.03 | 0.74 | 2603.63 | 0.62 | 2023 | 2198.00 | 0.73 | 336.47 | 0.75 | 63.76 | 0.46 | 71.23 | 0.71 | 2777.99 | 0.73 | 2024 | 2337.00 | 0.85 | 338.90 | 0.76 | 63.71 | 0.46 | 70.28 | 0.68 | 2964.02 | 0.85 | 2025 | 2485.00 | 0.99 | 339.76 | 0.76 | 63.48 | 0.45 | 69.24 | 0.64 | 3162.51 | 0.98 | MAPE | 0.856%% | | 3.448% | | 0.835% | | 1.714% | | 0.323% | |
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