Research Article
Developing an Optimization Model to Manage Unpaved Roads
Table 2
County unpaved road treatment decision process.
| Distress & condition | Service level | Very high | High | Medium | Low | Very low | None |
| Cross section/crown | | | | | | | (1) Poor | HB | HB | HB | HB | LB | N | (2) Fair | LB | LB | LB | LB | N | N | (3) Good | N | N | N | N | N | N |
| Roadside drainage | | | | | | | (1) Poor | RC | RC | DR | DR | HB | N | (2) Fair | DR | DR | HB | HB | N | N | (3) Good | N | N | N | N | N | N |
| Rutting | | | | | | | (1) Failed | RC | RC | RC | RG | HB | N | (2) Very poor | RC | RC | RG | HB | HB | N | (3) Poor | RC | RG | HB | HB | LB | N | (4) Poor | RG | HB | LB | LB | N | N | (5) Fair | HB | LB | N | N | N | N | (6) Fair | LB | N | N | N | N | N | (7) Good | N | N | N | N | N | N | (8) Good | N | N | N | N | N | N | (9) Very good | N | N | N | N | N | N |
| Potholes | | | | | | | (1) Failed | RC | RC | RC | RG | HB | N | (2) Very poor | RC | RC | RG | HB | HB | N | (3) Poor | RG | RG | RG | HB | LB | N | (4) Poor | RG | HB | HB | LB | N | N | (5) Fair | HB | HB | LB | N | N | N | (6) Fair | LB | LB | N | N | N | N | (7) Good | N | N | N | N | N | N | (8) Good | N | N | N | N | N | N | (9) Very good | N | N | N | N | N | N |
| Loose aggregate | | | | | | | (1) Failed | RG | RG | RG | RG | RG | N | (2) Very poor | RG | RG | RG | RG | TG | N | (3) Poor | RG | RG | RG | TG | HB | N | (4) Poor | RG | TG | TG | HB | N | N | (5) Fair | TG | HB | HB | N | N | N | (6) Fair | HB | N | N | N | N | N | (7) Good | N | N | N | N | N | N | (8) Good | N | N | N | N | N | N | (9) Very good | N | N | N | N | N | N |
| Corrugations | | | | | | | (1) Failed | RG | RG | RG | RG | RG | N | (2) Very poor | RG | RG | RG | RG | RG | N | (3) Poor | RG | RG | RG | RG | N | N | (4) Poor | RG | RG | RG | N | N | N | (5) Fair | RG | RG | TG | N | N | N | (6) Fair | TG | TG | N | N | N | N | (7) Good | N | N | N | N | N | N | (8) Good | N | N | N | N | N | N | (9) Very good | N | N | N | N | N | N |
| Dust | | | | | | | (1) High | RG | RG | RG | N | N | N | (2) Medium | TG | TG | N | N | N | N | (3) Low | N | N | N | N | N | N | (4) None | N | N | N | N | N | N |
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Note. N: none; LB: light blading; HB: heavy blading; TG: treating gravel; DR major drainage repair; RG: regravel; RC: reconstructing; Source: Wyoming Technology Transfer Center.
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