LTPP program

3104566502007PDFResearch PaperFHWA-HRT-07-028Pavement performanceMaterials testsOperationsLong-Term Pavement Performance Program (U.S.)United States. Federal Highway AdministrationLong-Term Pavement Performance Program (U.S.)United States. Federal Highway AdministrationNTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and PerformanceFederal Highway Administration;BTS Data DirectoryImproving the productivity and mobility of the national highway transportation system are key goals of the Federal Highway Administration (FHWA). During 2006, FHWA's Long-Term Pavement Performance (LTPP) program worked toward these goals through its efforts to provide answers to "how" and "why" pavements perform as they do. To better understand pavement performance, the LTPP program gathers and processes data describing the structure, service conditions, and performance of 2,513 pavement test sections in North America. Highway engineers use these data and data analysis findings to help make decisions that lead to more cost-effective and better performing pavements