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Publication Number: FHWA-HRT-06-121
Date: November 2006

Long-Term Pavement Performance (LTPP) Data Analysis Support: National Pooled Fund Study Tpf-5(013)

Appendix G: Nchrp 1-37a Calibration Flowchart Sample

This appendix provides an example of a calibration methodology flowchart for the NCHRP 1-37A pavement design procedures.

Figure 101. Flowchart. Example of NCHRP 1-37A calibration methodology flowchart.

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Source: J. Li et al., "PCCP Models for Rehabilitation/Reconstruction Decision Making," Washington State Department of Transportation, Report No. WA-RD 588.2, Olympia, WA, August 2005.

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The Federal Highway Administration (FHWA) is a part of the U.S. Department of Transportation and is headquartered in Washington, D.C., with field offices across the United States. is a major agency of the U.S. Department of Transportation (DOT). Provide leadership and technology for the delivery of long life pavements that meet our customers needs and are safe, cost effective, and can be effectively maintained. Federal Highway Administration's (FHWA) R&T Web site portal, which provides access to or information about the Agency’s R&T program, projects, partnerships, publications, and results.
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