Research Article
Developing an Optimization Model to Manage Unpaved Roads
Table 5
Summary of road conditions.
| Road # | Segment length (mi) | Overall condition | Condition after 90 days without treatment | Application of maintenance treatments | Assigned service level (SL) | Treatment type | Cost | Condition after treatment |
| 1 | 0.98 | 6 | 3.12 | VH | 3 | $4,921 | 8 | 2 | 1.99 | 3 | 0.12 | VH | 5 | $99,545 | 9 | 3 | 3.06 | 6 | 3.12 | VH | 3 | $15,298 | 8 | 4 | 0.95 | 6 | 3.12 | VH | 3 | $4,746 | 8 | 5 | 2.25 | 7 | 4.12 | VH | 0 | $— | 7 | 6 | 6.93 | 6 | 3.12 | VH | 3 | $34,650 | 8 | 7 | 5.22 | 3 | 0.12 | H | 5 | $260,938 | 9 | 8 | 5.21 | 7 | 4.12 | H | 0 | $— | 7 | 9 | 2.00 | 3 | 0.12 | H | 5 | $99,981 | 9 | 10 | 3.00 | 3 | 0.12 | H | 5 | $149,981 | 9 | 11 | 7.09 | 6 | 3.12 | H | 3 | $35,450 | 8 | 12 | 2.02 | 3 | 0.12 | H | 5 | $101,070 | 9 | 13 | 0.23 | 6 | 3.12 | H | 4 | $3,460 | 8 | 14 | 1.01 | 6 | 3.12 | H | 3 | $5,045 | 8 | 15 | 0.71 | 6 | 3.12 | H | 3 | $3,564 | 8 | 16 | 1.28 | 6 | 3.12 | H | 3 | $6,384 | 8 | 17 | 0.67 | 3 | 0.12 | H | 4 | $10,108 | 8 | 18 | 2.01 | 7 | 4.12 | H | 0 | $— | 7 | 19 | 0.96 | 6 | 3.12 | H | 3 | $4,800 | 8 | 20 | 0.24 | 6 | 3.12 | H | 3 | $1,200 | 8 |
| Total | 46.7 | | | | | $841,143 | |
| Weighted average | | 5.4 | 2.4 | | | | 8.2 |
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