Journal of Advanced Transportation / 2017 / Article / Tab 2

Research Article

Developing an Optimization Model to Manage Unpaved Roads

Table 2

County unpaved road treatment decision process.

Distress & conditionService level
Very highHighMediumLowVery lowNone

Cross section/crown
 (1) PoorHBHBHBHBLBN
 (2) FairLBLBLBLBNN
 (3) GoodNNNNNN

Roadside drainage
 (1) PoorRCRCDRDRHBN
 (2) FairDRDRHBHBNN
 (3) GoodNNNNNN

Rutting
 (1) FailedRCRCRCRGHBN
 (2) Very poorRCRCRGHBHBN
 (3) PoorRCRGHBHBLBN
 (4) PoorRGHBLBLBNN
 (5) FairHBLBNNNN
 (6) FairLBNNNNN
 (7) GoodNNNNNN
 (8) GoodNNNNNN
 (9) Very goodNNNNNN

Potholes
 (1) FailedRCRCRCRGHBN
 (2) Very poorRCRCRGHBHBN
 (3) PoorRGRGRGHBLBN
 (4) PoorRGHBHBLBNN
 (5) FairHBHBLBNNN
 (6) FairLBLBNNNN
 (7) GoodNNNNNN
 (8) GoodNNNNNN
 (9) Very goodNNNNNN

Loose aggregate
 (1) FailedRGRGRGRGRGN
 (2) Very poorRGRGRGRGTGN
 (3) PoorRGRGRGTGHBN
 (4) PoorRGTGTGHBNN
 (5) FairTGHBHBNNN
 (6) FairHBNNNNN
 (7) GoodNNNNNN
 (8) GoodNNNNNN
 (9) Very goodNNNNNN

Corrugations
 (1) FailedRGRGRGRGRGN
 (2) Very poorRGRGRGRGRGN
 (3) PoorRGRGRGRGNN
 (4) PoorRGRGRGNNN
 (5) FairRGRGTGNNN
 (6) FairTGTGNNNN
 (7) GoodNNNNNN
 (8) GoodNNNNNN
 (9) Very goodNNNNNN

Dust
 (1) HighRGRGRGNNN
 (2) MediumTGTGNNNN
 (3) LowNNNNNN
 (4) NoneNNNNNN

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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