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- W2240879372 abstract "Like most departments of transportation, the North Carolina Department of Transportation (NCDOT) has operated on a worst-first priority system for many years. Inadequate maintenance funding increased the pressure toward worst-first. During initial training in pavement preservation, calculations were done on North Carolina data that showed the benefit of treating roads in fair to good condition. The first step in developing a pavement preservation program was to provide widespread training in preservation “philosophy” and treating the right road at the right time. The initial training occurred in 2000, with a second course in 2001 and a third in 2003, stressing selection of appropriate treatments. North Carolina performs pavement condition surveys every other year on the primary and secondary systems. Unfortunately, it takes multiple pavement condition surveys to see a measurable change in pavement ratings. An alternate method of measuring the transformation to pavement preservation is from roadway treatment packages. Two such packages were evaluated: surface treatments and resurfacing (typically 1 to 1.5 in. of hot-mix asphalt). The NCDOT has assessed how successful it has been at changing the project selection for the secondary road system. This was done by comparing the before treatment condition for 2000, 2003, and 2004 surface treatment roadways and resurfacing roadways with pavement preservation criteria. The 2001 data reflect the “pre-pavement preservation training” period. NCDOT studied both the extent of work being conducted in a pavement preservation mode and that being done on a “worst first” mode, both collectively and by division. NCDOT found one division that was ahead of the training and had been treating roads on a fixed interval for some time. The pavement condition rating (PCR) for that division reflects the early benefits of their approach. NCDOT found a number of divisions that were increasing the percentage of their programs that were addressing roads in a preservation mode. Finally, NCDOT found a minority group of divisions who had not moved as quickly to pavement preservation. For surface treatments, the result was a decrease in PCR for this category of divisions. Three specific divisions are discussed in detail. The evaluation of resurfacing showed that pavement preservation had not yet been adopted and implemented for thin overlays." @default.
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- W2240879372 date "2005-10-01" @default.
- W2240879372 modified "2023-09-24" @default.
- W2240879372 title "Changing Our Way of Thinking: Have We Succeeded?" @default.
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