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Key Findings from LTPP Analysis 1990-1999

Primary Topic: Pavement Maintenance

Description: The Long-Term Pavement Performance (LTPP) analysis program has addressed a broad array of topics-from field validation of pavement design procedures, to the study of variability in traffic and materials data, to investigating pothole repair techniques. Findings from these efforts illustrate not only the immediate value of the LTPP database, but also its future potential for the improvement of pavement technology.

The purpose of this document is to highlight some of the key findings from LTPP analysis studies between 1990 and 1999. These findings have been organized into the following areas: Site Conditions, Structural Features, Materials, Initial Roughness, Pavement Maintenance, Pavement Rehabilitation, American Association of State Highway and Transportation Officials (AASHTO) Design Validation, and Performance Modeling.

In all, approximately 50 documents (including LTPP research reports, TechBriefs, and Product Briefs) were reviewed to develop this summary. Our goal is to provide LTPP partners with information that can help them in their quest to design, build, and maintain cost-effective and long-lived roads.

FHWA Publication Number: FHWA-RD-00-085

Publication Year: 2000

Document Links: HTML 



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