Preparation of the Implementation Plan of AASHTO Mechanistic-Empirical Pavement Design Guide (M-EPDG) in Connecticut: Phase II – Expanded Sensitivity Analysis and Validation with Pavement Management Data
The study re-evaluates distress prediction models using the Mechanistic-Empirical Pavement Design Guide (M-EPDG) and expands the sensitivity analysis to a wide range of pavement structures and soils. In addition, an extensive validation analysis of the accuracy of the M-EPDG model predictions was conducted using Connecticut Department of Transportation's (CTDOT’s) Pavement Management Information System (PMIS) data. The major findings indicate: (1) Overall, the Pavement-ME software has capability of running multiple simulation projects simultaneously, thus accelerating sensitivity analyses. (2) The PMIS in Connecticut was found to report overestimated extent of linear cracking, most likely, due to built-in settings of the processing algorithms. (3) The statistical analysis of predicted and reported distress values indicated poor accuracy of Pavement-ME predictions regarding fatigue and thermal cracking in Connecticut. On the other hand, longitudinal cracking, International Roughness Index (IRI), and rutting predictions were found correlated with PMIS-reported values. (4) This study confirmed that an increase in the level of detail for asphalt material properties could lead to an increase in accuracy for longitudinal cracking prediction.
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Corporate Authors:
University of Connecticut, Storrs
Connecticut Transportation Institute
270 Middle Turnpike, Unit 5202
Storrs, CT United States 06269-5202Connecticut Department of Transportation
2800 Berlin Turnpike
Newington, CT United States 06131Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Yut, Iliya
- Mahoney, James
- Larsen, Donald A
- Publication Date: 2017-2-8
Language
- English
Media Info
- Media Type: Digital/other
- Edition: Final Report
- Features: Appendices; Figures; References; Tables;
- Pagination: 146p
Subject/Index Terms
- TRT Terms: Accuracy; Pavement cracking; Pavement distress; Pavement management systems; Rutting; Sensitivity analysis; Validation
- Identifier Terms: Connecticut Department of Transportation; Mechanistic-Empirical Pavement Design Guide
- Subject Areas: Highways; Pavements; Planning and Forecasting;
Filing Info
- Accession Number: 01630117
- Record Type: Publication
- Report/Paper Numbers: CT-2293-F-17-1, CAPLAB 01-2017
- Contract Numbers: SPR-2293
- Files: NTL, TRIS, ATRI, USDOT, STATEDOT
- Created Date: Feb 22 2017 3:41PM