Research Article
Bilevel Optimization for the Hazmat Transportation Problem with Lane Reservation
Table 6
Computational comparison of small scale between EX-EX-EX and EX-PSO-EX and EX-GA-EX with
= 0.1,
= 0.1, and
= 0.7 (sets 1–15).
| Set | |N| | |A| | | | EX-EX-EX | EX-PSO-EX | EX-GA-EX | | CPU time (sec) | | CPU time (Sec) | | CPU time (sec) | Average Solution | Avg | Best Solution | Best | Standard Deviation | Average Solution | Avg | Best Solution | Best | Standard Deviation |
| 1 | 8 | 16 | 5 | 7 | 0.363 | 0.260 | 0.364 | 0.004 | 0.363 | 0.000 | 0.006 | 0.267 | 0.363 | 0.000 | 0.363 | 0.000 | 0.000 | 0.749 | 2 | 8 | 18 | 5 | 10 | 0.211 | 2.933 | 0.212 | 0.005 | 0.211 | 0.000 | 0.004 | 0.269 | 0.211 | 0.000 | 0.211 | 0.000 | 0.000 | 0.751 | 3 | 8 | 20 | 5 | 10 | 0.208 | 2.932 | 0.208 | 0.003 | 0.208 | 0.000 | 0.001 | 0.280 | 0.208 | 0.000 | 0.208 | 0.000 | 0.000 | 0.756 | 4 | 8 | 22 | 5 | 7 | 0.301 | 0.258 | 0.301 | 0.000 | 0.301 | 0.000 | 0.000 | 0.272 | 0.301 | 0.000 | 0.301 | 0.000 | 0.000 | 0.768 | 5 | 8 | 24 | 5 | 7 | 0.237 | 0.262 | 0.237 | 0.000 | 0.237 | 0.000 | 0.000 | 0.278 | 0.237 | 0.000 | 0.237 | 0.000 | 0.000 | 0.762 | 6 | 10 | 30 | 5 | 10 | 0.174 | 3.091 | 0.177 | 0.014 | 0.174 | 0.000 | 0.007 | 0.868 | 0.174 | 0.000 | 0.174 | 0.000 | 0.000 | 0.795 | 7 | 10 | 32 | 5 | 11 | 0.217 | 6.834 | 0.218 | 0.002 | 0.217 | 0.000 | 0.002 | 0.541 | 0.217 | 0.000 | 0.217 | 0.000 | 0.000 | 0.804 | 8 | 10 | 34 | 5 | 10 | 0.245 | 3.129 | 0.245 | 0.000 | 0.245 | 0.000 | 0.000 | 0.557 | 0.245 | 0.000 | 0.245 | 0.000 | 0.000 | 0.807 | 9 | 10 | 36 | 5 | 9 | 0.126 | 1.415 | 0.126 | 0.000 | 0.126 | 0.000 | 0.000 | 0.558 | 0.126 | 0.000 | 0.126 | 0.000 | 0.000 | 0.817 | 10 | 10 | 38 | 5 | 11 | 0.344 | 6.940 | 0.351 | 0.022 | 0.344 | 0.000 | 0.006 | 0.551 | 0.344 | 0.002 | 0.344 | 0.000 | 0.003 | 0.812 | 11 | 15 | 70 | 10 | 13 | 0.251 | 67.840 | 0.259 | 0.030 | 0.251 | 0.000 | 0.006 | 1.068 | 0.251 | 0.000 | 0.251 | 0.000 | 0.000 | 1.566 | 12 | 15 | 72 | 10 | 14 | 0.270 | 138.524 | 0.285 | 0.056 | 0.270 | 0.000 | 0.012 | 1.066 | 0.270 | 0.000 | 0.270 | 0.000 | 0.000 | 1.598 | 13 | 15 | 74 | 10 | 15 | 0.253 | 299.240 | 0.256 | 0.010 | 0.253 | 0.000 | 0.002 | 1.068 | 0.253 | 0.000 | 0.253 | 0.000 | 0.000 | 1.594 | 14 | 15 | 76 | 10 | 16 | 0.177 | 645.755 | 0.188 | 0.044 | 0.177 | 0.000 | 0.011 | 1.075 | 0.177 | 0.000 | 0.177 | 0.000 | 0.000 | 1.598 | 15 | 15 | 78 | 10 | 17 | 0.315 | 1381.517 | 0.323 | 0.025 | 0.316 | 0.003 | 0.004 | 1.067 | 0.317 | 0.004 | 0.315 | 0.000 | 0.003 | 1.585 |
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