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原文传递 Long-Term Pavement Performance Program (LTPP) Year in Review, 2005.

题名：	Long-Term Pavement Performance Program (LTPP) Year in Review, 2005.
关键词：	PAVEMENTS; PERFORMANCE EVALUATION
摘要：	Improving the productivity and mobility of the national highway transportation system are key goals of the Federal Highway Administration (FHWA). During 2005, FHWAs Long-Term Pavement Performance (LTPP) program continued to work 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 more than 2,400 pavement test sections in North America. Highway engineers can use these data and findings from the analyses conducted to date to help them make decisions leading to more cost-effective and better performing pavements. The LTPP program was designed as a partnership when it was initiated as a 20-year Strategic Highway Research Program (SHRP) project in 1987. The State and Canadian Provincial highway agencies, the American Association of State Highway and Transportation Officials (AASHTO), the Transportation Research Board (TRB), the Canadian Strategic Highway Research Program (C-SHRP), and FHWA all continued to play key roles in helping the program achieve its goals in 2005. Our partners stay informed about research results and other program activities through our Web site, our e-mail newsletter, publications, meetings, and workshops in cooperation with State highway agencies (SHAs), industry trade associations, and professional societies. In 2005, LTPP worked hard to develop a new operational plan for the future under the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU). A summary of the plan follows below. In addition, LTPP continued to focus on improving the quality and quantity of data in the LTPP database, and on addressing gaps in the materials and traffic data through the Materials Data Action Plan and the Specific Pavement Study (SPS) Traffic Data Collection Pooled Fund Study.
报告类型：	科技报告