The project approach will include an assessment of both Long-Term Pavement Performance (LTPP) and State agency performance data for the same pavement sections that have been collected by State agencies. Historical pavement performance information will be extracted from the LTPP database for selected test section locations, and the State agency data will also be evaluated for these same locations. Additionally, a record of pavement treatments is available in the maintenance and rehabilitation tables in the LTPP databases. This treatment information is very important because ultimately the consistency of the pavement management recommendation for treatment is the important measure of performance data reliability from the network level perspective. Multiple analyses of these two datasets will be performed to compare the uniformity of results. Statistical and quantitative-based comparisons will be made to demonstrate that the data meet the required level of consistency to support network-level applications. From this comparative analysis, the metrics necessary to support network-level use of the data, and the objective of providing recommendations for supporting performance-based reporting requirements, will be developed.
To provide a step forward in understanding the use of ride, rutting, and distress data in pavement management system applications, both at the State agency and national levels.