Research Article
A Novel Method for Evaluating Dredging Productivity Using a Data Envelopment Analysis-Based Technique
Table 6
Daily dredging productivity by the traditional dredging productivity method.
| Work day | Input | Output | Output/Input | Convert to single input | Daily dredging (M3) | Daily dredging productivity |
| 1 | 0.386 | 79 | 2816.346 | 2 | 0.458 | 175 | 6405.818 | 3 | 0.617 | 385 | 11019.975 | 4 | 0.504 | 235 | 8231.639 | 5 | 0.461 | 178 | 8273.882 | 6 | 0.473 | 194 | 7960.192 | 7 | 0.593 | 353 | 10342.529 | 8 | 0.433 | 142 | 4816.154 | 9 | 0.473 | 194 | 8890.962 | 10 | 0.480 | 203 | 9519.431 | 11 | 0.547 | 292 | 8879.834 | 12 | 0.547 | 292 | 9653.186 | 13 | 0.472 | 193 | 6966.549 | 14 | 0.472 | 193 | 11371.493 | 15 | 0.550 | 296 | 9232.727 | 16 | 0.528 | 267 | 8652.912 | 17 | 0.534 | 275 | 8680.170 | 18 | 0.536 | 277 | 8681.754 | 19 | 0.555 | 302 | 9328.361 | 20 | 0.592 | 351 | 10233.803 | 21 | 0.649 | 427 | 11393.279 | 22 | 0.661 | 443 | 11704.605 | 23 | 0.636 | 409 | 11271.132 | 24 | 0.561 | 310 | 9687.730 | 25 | 0.578 | 333 | 10094.626 | 26 | 0.598 | 359 | 10523.194 | 27 | 0.661 | 443 | 11719.725 | 28 | 0.586 | 343 | 10257.749 | 29 | 0.631 | 403 | 11190.684 | 30 | 0.638 | 412 | 11303.088 | 31 | 0.646 | 423 | 11445.158 | 32 | 0.608 | 372 | 10714.713 | 33 | 0.645 | 421 | 11439.483 | 34 | 0.646 | 423 | 11466.823 | 35 | 0.645 | 422 | 11440.000 | 36 | 0.655 | 435 | 11628.208 | 37 | 0.657 | 437 | 11612.042 | 38 | 0.666 | 449 | 11774.881 | 39 | 0.666 | 449 | 11783.891 | 40 | 0.667 | 450 | 11799.000 | 41 | 0.655 | 434 | 11598.889 | 42 | 0.656 | 436 | 11622.402 | 43 | 0.648 | 426 | 11491.402 | 44 | 0.652 | 431 | 11559.582 | 45 | 0.659 | 440 | 11694.897 | 46 | 0.657 | 437 | 11636.401 | 47 | 0.616 | 383 | 10883.100 | 48 | 0.654 | 433 | 11593.975 | 49 | 0.656 | 436 | 11636.120 | 50 | 0.661 | 443 | 11724.261 | 51 | 0.655 | 435 | 11622.104 | 52 | 0.657 | 437 | 11636.401 | 53 | 0.654 | 433 | 11589.386 | 54 | 0.652 | 431 | 10354.564 | 55 | 0.661 | 443 | 11712.165 | 56 | 0.664 | 447 | 11667.777 | 57 | 0.333 | 10 | 1200.000 | 58 | 0.333 | 10 | 1200.000 | 59 | 0.555 | 303 | 9540.737 | 60 | 0.423 | 129 | 5350.841 | 61 | 0.356 | 40 | 1926.638 | 62 | 0.517 | 252 | 10020.000 | 63 | 0.614 | 380 | 10838.667 | 64 | 0.595 | 355 | 10445.656 | 65 | 0.555 | 303 | 9540.737 | 66 | 0.423 | 129 | 5350.841 |
|
|