Research Article
Road Network Vulnerability Analysis Based on Improved Ant Colony Algorithm
Table 2
Utility and vulnerability of arcs at different traffic demands.
| Demand level | Arc 1 | Arc 2 | Arc 3 | Arc 4 | Arc 5 |
| 100% | | 7.152 | 12.072 | 4.776 | 7.152 | 4.776 | | 1.004 | 2.208 | 1.103 | 1.203 | 1.104 | | 0.577 | 0.065 | 0.631 | 0.622 | 0.600 |
| 110% | | 8.448 | 12.170 | 5.782 | 8.448 | 5.782 | | 1.009 | 2.215 | 1.106 | 1.207 | 1.108 | | 0.499 | 0.058 | 0.552 | 0.552 | 0.514 | | 0.135 | 0.109 | 0.125 | 0.112 | 0.143 |
| 120% | | 9.734 | 12.326 | 6.739 | 9.734 | 6.739 | | 1.015 | 2.226 | 1.111 | 1.212 | 1.115 | | 0.421 | 0.047 | 0.477 | 0.483 | 0.432 | | 0.270 | 0.280 | 0.244 | 0.223 | 0.279 |
| 130% | | 11.014 | 12.574 | 7.613 | 11.014 | 7.613 | | 1.025 | 2.245 | 1.118 | 1.219 | 1.125 | | 0.344 | 0.029 | 0.408 | 0.414 | 0.358 | | 0.404 | 0.548 | 0.354 | 0.335 | 0.404 |
| 140% | | 12.230 | 12.869 | 8.501 | 12.230 | 8.501 | | 1.038 | 2.269 | 1.128 | 1.229 | 1.139 | | 0.270 | 0.009 | 0.337 | 0.348 | 0.282 | | 0.531 | 0.862 | 0.465 | 0.440 | 0.530 |
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