The Long-Term Pavement Performance (LTPP) program is the world’s largest pavement performance monitoring study, collecting data at 2,514 in-service highway test sections throughout the United States and Canada. The primary goal is to understand how and why pavements perform as they do so that State and local highway agencies can make informed decisions and provide the public with safer and more cost-effective pavement infrastructure.
The LTPP program was initiated in 1987 to satisfy a wide range of pavement information needs. Over the years, the program has accumulated a vast repos...
The LTPP program will yield additional benefits as data are added to the database and as data analysis efforts—some currently planned and some yet t...
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United States Department of Transportation
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