BENEFITTING FROM LTPP--A STATE'S PERSPECTIVE

For more than a decade, the U.S. Federal Government, the States, and Canadian provinces have invested in the Long-Term Pavement Performance Program (LTPP), a 20-year pavement research project. During its first 10 years, LTPP gathered, processed, and analyzed data describing the structure, service conditions, and performance of more than 2,500 pavement test sections in North America. This article provides a discussion of the values and benefits of LTPP to date from the perspective of the author's experience with the Program in the state of Pennsylvania.