Study of Georgia’s pavement deterioration/life and potential risks of delayed pavement resurfacing and rehabilitation : final report.
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2016-08-01
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Alternative Title:Georgia DOT research project 14-05 : study of Georgia's pavement deterioration/life and potential risks of delayed pavement resurfacing and rehabilitation : final report.
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Edition:Final report
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Abstract:Georgia has continuously been rated as one of the states with the smoothest pavements in the United States ; because the Georgia Department of Transportation (GDOT) has established a standardized pavement condition ; evaluation system (PACES) for consistent annual pavement performance monitoring. GDOT also established an ; active, data-driven annual pavement preservation program that determines pavement preservation methods (i.e., ; treatment criteria), prioritization of the projects (e.g., rating, AADT, etc.), and allocation of the maintenance and ; rehabilitation funding, using PACES data. This rich pavement performance data from FY 1986 to FY 2014 is ; extremely valuable because they reveal the actual pavement performance in Georgia. This project is: 1) to study ; the actual pavement performance of GDOT’s in-service pavements using 28-year of pavement condition ; evaluation data; 2) to study the pavement resurfacing delay situation; and 3) to study the impact of pavement ; resurfacing delay with a special focus on the pavement resurfacing effectiveness/life and the increases in ; construction and user costs. Two types of pavement service interval were studied in this project: “Pavement ; Resurfacing Interval,” which represents the time period between two consecutive resurfacing activities, and ; “Pavement 70 Interval,” which represents the time period to reach a rating of 70 that can be used for a consistent ; performance comparison. After extensive data screening and processing, a total of 370 resurfacing cycles with ; high-quality data were selected for analysis. The pavement resurfacing interval and pavement 70 interval is 11.6 ; and 10.3 years, respectively. Study of selected resurfacing cycles with high traffic volume shows the resurfacing ; effectiveness (Pavement 70 Interval) decreases more than 10% (1 year) at every 5-point drop of COPACES rating ; when resurfacing is conducted at a rating less than 70. Results indicate the resurfacing delay has significant ; negative impact on resurfacing effectiveness. More data, especially projects with different traffic volumes, are ; needed to study the consequence of delayed resurfacing.
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Main Document Checksum:urn:sha-512:e43989843635c424abc77d06a9c33ea318f229d7d415ad551eb70e805c11d2cc83fb69f9f7d1d21b2eee6f426cf7c2732a6cb576f30a6cf70a0fbfca5f6d528c