Improved Prediction Models for PCC Pavement Performance-Related Specifications.Volume 2. PaveSpec 3.0 User's Guide

摘要

The current performance-related specifications (PRS) methodology has been underdevelopment by the Federal Highway Administration (FHWA) for several years and has now reached a level at which it can be implemented by State highway agencies. PRS for highway pavements depend heavily on performance prediction models to determine the impact of varying levels of construction quality. This study focused on the improvement of the key distress and smoothness (International Roughness Index (IRI)) were evaluated and then improved substantially. This was accomplished using a comprehensive national database of JPCP performance data, along with sound statistical and engineering techniques. Performance model calibration guidelines were also developed so that a State can calibrate any of these models specifically to its pavement performance data.