| The main objective of this study was to develop an asset management system for Wyoming counties and to analyze the collected asset data. This pilot study included three Wyoming counties, Carbon, Johnson, and Sheridan. The intent was to locate the road segments which were in poor or failed condition in each of these counties. Another goal was to find the best fit model of the gravel roads which determined the variables which have most effect in overall PASER rating. The surface PASER rating was the dependent variable and there were eight independent variables, Loose Aggregate, Gravel Layer, Crown, Potholes, Washboards, Rutting, Drainage, and Dust in the model. The significant variables in the model indicate roadway features that should receive priority in the maintenance work. The statistical analysis showed that Loose Aggregate and Dust were not in the best fit model for Carbon County. The best fit models for Johnson and Sheridan counties data did not include Crown and Dust. A Feature database provided information about the condition of the features and the need for replacement. Percentages of empty data fields in the Feature database were determined. As a follow-up study, a different database is being developed and additional information is being collected for the development of performance model for gravel roads. |
