Download or read book Validation of Pavement Performance Measures Using Long-term Pavement Performance Data written by and published by . This book was released on 2018 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of this validation study showed that the performance measures are comprehensive with respect to the state of the practice--they address functional and structural (albeit using cracking as a surrogate) performance. They are balanced as they comprise several individual types of metrics (IRI, cracking, rutting, and faulting), and they show the expected performance trend over time. A parallel study detailed in the FHWA Interstate Pavement Condition Sampling report addresses these and other criteria, including appropriateness or measures at the national level. Although improvements are possible, the performance measures are considered appropriate and valid for their intended purposes.