Calibration of the MEPDG transfer functions in Georgia : task order 2 report.

Details

• Creators:
  Von Quintus, Harold L. ; Darter, Michael I. ; Bhattacharya, Biplab B. ; Titus-Glover, Leslie
• Corporate Creators:
  Applied Research Associates, Inc.
• Corporate Contributors:
  Georgia Department of Transportation
• Subject/TRT Terms:
  • Calibration
  • Implementation
  • Mechanistic-empirical pavement design
  • Pavement distress
  • Pavement performance
  • Smoothness
  • Test sections
  • Mechanistic-empirical pavement design guide
  • ME design
  • transfer functions
  More +
• Publication/ Report Number:
  FHWA/GA-014-11-17
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Georgia
• Edition:
  Task 4 Interim Report - Task Order #2
• Corporate Publisher:
  Georgia. Dept. of Transportation
• Abstract:
  The Georgia Department of Transportation (GDOT) currently uses the empirical 1972 AASHTO Interim Guide for ; Design of Pavement Structures as their standard pavement design procedure. However, GDOT plans to transition to the ; Mechanistic Empirical Pavement Design Guide (MEPDG) for designing new and rehabilitated highway pavements. As ; a part of the transitioning process, GDOT has sponsored an implementation project. One part of the implementation ; project is to verify the MEPDG global distress transfer functions and calibrate these functions to local conditions, if ; determined to be necessary. The Georgia Long-Term Pavement Performance (LTPP) and non-LTPP roadway segments ; were used for this verification-calibration process. ; As noted above, one objective of the implementation project was to verify or confirm that the MEPDG transfer ; functions and global calibration coefficients derived from NCHRP project 1-40D reasonably predict distresses and ; smoothness in Georgia. The Task 2 interim report focused on using the Georgia LTPP test sections to confirm the ; applicability of the global calibration coefficients. The Task 2 interim report concluded some of the transfer functions ; exhibited significant bias between the measured and predicted distress and require local calibration. ; This report documents the local calibration of the transfer functions using LTPP and non-LTPP roadway segments. The ; calibration process follows the procedure presented in the 2010 AASHTO MEPDG Local Calibration Guide. Local ; calibration coefficients were derived to remove that bias for the rutting, fatigue cracking, and thermal cracking transfer ; functions of flexible pavements, and the faulting and fatigue cracking transfer functions of rigid pavements. The global ; coefficients of the smoothness degradation regression equation for flexible and rigid pavements were also checked for ; their applicability to Georgia conditions.
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• Format:
  PDF
• Funding:
  TOOMRPRO130020
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/31127/dot_31127_DS1.pdf
• File Type:
  [PDF - 4.14 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:d3c7ce14c11741c12d02e7b2c9ac9027512e5b89ff91e2bfea3f72789de91a1d