摘要: |
The overall objective of the Strategic Highway Research Program Long-Term Pavement Performance (SHRP-LTPP) study was to increase pavement life by investigation of various designs of pavement structures and rehabilitated pavement structures, using different materials and under different loads, environments, subgrade soil, and maintenance practices. The establishment of a national long-term pavement performance database to support LTPP analyses and future research needs was recognized as a major specific objective of the study. This report summarizes the LTPP monitoring data collection activities for inclusion in the National Pavement Performance Database. The pavement condition monitoring data include identification of surface distress, profile measurements, deflection testing results, and surface friction measurements. The report also describes traffic, climate, maintenance, rehabilitation, and seasonal monitoring and data collection. Other results and products of the 5-year pavement condition monitoring activity are listed. |