Research Article
Developing an Optimization Model to Manage Unpaved Roads
Table 7
Summary results optimizing the combination model in the first 3 months with a budget of $261 thousand.
| Road # | Segment length (mi) | ADT | Existing rating | Project | Treatment type | Cost | Cost-factor | ADT | Rating |
| 1 | 0.98 | 438 | 6 | 1 | 3 | $4,921 | 0.1 | 438 | 8 | 2 | 1.99 | 438 | 3 | 1 | 5 | $99,545 | 1 | 438 | 8 | 3 | 3.06 | 438 | 6 | 1 | 3 | $15,298 | 0.1 | 438 | 8 | 4 | 0.95 | 438 | 6 | 1 | 3 | $4,746 | 0.1 | 438 | 8 | 5 | 2.25 | 438 | 7 | 1 | 0 | $— | 0 | 438 | 8 | 6 | 6.93 | 438 | 6 | 1 | 3 | $34,650 | 0.1 | 438 | 8 | 7 | 5.22 | 195 | 3 | 0 | — | $— | 1 | — | 0.12 | 8 | 5.21 | 195 | 7 | 1 | 0 | $— | 0 | 195 | 8 | 9 | 2.00 | 180 | 3 | 0 | — | $— | 1 | — | 0.12 | 10 | 3.00 | 180 | 3 | 0 | — | $— | 1 | — | 0.12 | 11 | 7.09 | 180 | 6 | 1 | 3 | $35,450 | 0.1 | 180 | 8 | 12 | 2.02 | 166 | 3 | 0 | — | $— | 1 | — | 0.12 | 13 | 0.23 | 166 | 6 | 1 | 4 | $3,460 | 0.3 | 166 | 8 | 14 | 1.01 | 166 | 6 | 1 | 3 | $5,045 | 0.1 | 166 | 8 | 15 | 0.71 | 166 | 6 | 1 | 3 | $3,564 | 0.1 | 166 | 8 | 16 | 1.28 | 166 | 6 | 1 | 3 | $6,384 | 0.1 | 166 | 8 | 17 | 0.67 | 166 | 3 | 1 | 4 | $10,108 | 0.3 | 166 | 8 | 18 | 2.01 | 166 | 7 | 1 | 0 | $— | 0 | 166 | 8 | 19 | 0.96 | 166 | 6 | 1 | 3 | $4,800 | 0.1 | 166 | 8 | 20 | 0.24 | 166 | 6 | 1 | 3 | $1,200 | 0.1 | 166 | 8 |
| Weighted average | | | | | | $229,173 | 0.36 | 226 | 6.13 |
|
|