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About
The Long-Term Pavement Performance (LTPP) program - the largest pavement study ever conducted - is an important source of research quality pavement performance information for the pavement community. LTPP was initiated in 1987 as part of the Strategic Highway Research Program (SHRP). Responsibility for program management was transferred to the Federal Highway Administration (FHWA) in 1992, and FHWA continues to serve in this role. The program has monitored more than 2,500 test sections on in-service highways located throughout the United States and Canada, and data are collected through cooperative efforts of highway agencies and the LTPP program organization. The data collection effort includes inventory, material testing, pavement performance monitoring, climate, traffic, maintenance, and rehabilitation data. The data are subject to an extensive series of quality control checks before being made available to the public, and the data are housed in an information management system - the LTPP database - that is the world's largest pavement performance database. LTPP data has been utilized to provide over $2 billion in savings, and as the program continues to monitor existing test sections and constructs new experiments, it provides enormous potential for development of products to further improve pavement technology for decades to come. |
