Where would you find the design chart for flexible pavements based on mean values?

• A. AAHSTO 1993 PDG
• B. AASHTO 1993 PDG
• C. Pavement Design Manual
• D. Asphalt Institute Guidelines

Answer: (B)

The design chart for flexible pavements based on mean values can be found in the AASHTO 1993 Pavement Design Guide (PDG). This guide is a comprehensive resource developed by the American Association of State Highway and Transportation Officials, which provides detailed methodologies for the design of various types of pavements, including flexible pavements. The 1993 version specifically includes charts that summarize the relationships between different design factors, such as traffic loading, subgrade support, and material characteristics, allowing engineers to determine the appropriate pavement structure.

The AASHTO 1993 PDG is widely recognized and utilized across the industry, making it a standard reference for civil engineers involved in pavement design. This guide incorporates empirical data and performance-based approaches to facilitate effective pavement design tailored to various environmental and traffic conditions.

While other resources like the AAHSTO or the Pavement Design Manual may contain useful information, they do not specifically provide the flexible pavement design charts based on mean values as comprehensively as the AASHTO 1993 PDG. Similarly, while the Asphalt Institute has its guidelines, they focus more on asphalt materials and mix design rather than the overall pavement structure design based on empirical models.