01333088

Component

https://doi.org/10.3141/2226-15

http://scholar.google.com...Xiao&publication_year=2011

Because of potential differences between national and local conditions, the "Mechanistic–Empirical Pavement Design Guide" (MEPDG) should be calibrated to a local level. Arkansas has invested heavily in efforts to implement the MEPDG. This paper summarizes the initial local calibration of flexible pavement models in the MEPDG for Arkansas. Data from the Long-Term Pavement Performance (LTPP) database and local pavement management system (PMS) were used. The solver function in Microsoft Excel was used to optimize the coefficients for alligator cracking. Iterative runs of the MEPDG by means of discrete calibration coefficients were conducted to optimize rutting models. In general, the alligator cracking and rutting models are improved by calibration. However, a question remains about the suitability of the calibrated models for routine design. Many default values were used in the MEPDG because of a lack of data. It is recommended that additional sites be established and a more robust data collection procedure be implemented for future calibration efforts. The difference in the definitions of transverse cracking between the MEPDG and the LTPP may be critical to data collection and identification. Thermal cracking should be specifically identified in a transverse cracking survey to calibrate the transverse cracking model in MEPDG. The procedure using LTPP and PMS data for local calibration of the MEPDG in Arkansas is established. Additional development of database software for data manipulation, preprocessing, and quality control—under way in Arkansas—will significantly streamline the calibration process.

01353811

11-3562

English

pp 135-141

2011

Transportation Research Record: Journal of the Transportation Research Board

9780309167369

Print

Figures (5) ; Maps (1) ; References (15) ; Tables (3)

Alligator cracking; Calibration; Data collection; Flexible pavements; Pavement design; Pavement management systems; Pavement performance; Rutting; Thermal degradation; Transverse cracking

Long-Term Pavement Performance Program; Mechanistic-Empirical Pavement Design Guide

Data needs

Arkansas

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways

PRP, TRIS, TRB, ATRI

Feb 17 2011 6:33PM

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• Continuously Reinforced Concrete Pavement: Identification of Distress Mechanisms and Improvement of Mechanistic–Empirical Design Procedures
• Effect of Concrete Strength and Stiffness Characterization on Predictions of Mechanistic–Empirical Performance for Rigid Pavements
• Enhancing "Mechanistic–Empirical Pavement Design Guide" Rutting-Performance Predictions with Hamburg Wheel-Tracking Results
• Estimation and Validation of Gaussian Process Surrogate Models for Sensitivity Analysis and Design Optimization: Based on the "Mechanistic–Empirical Pavement Design Guide"
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• Improvements to Modeling of Concrete Slab Curling by Using NIKE3D Finite Element Program
• Minnesota Road Research Data for Evaluation and Local Calibration of the "Mechanistic–Empirical Pavement Design Guide"’s Enhanced Integrated Climatic Model
• New Laboratory-Based Mechanistic–Empirical Model for Faulting in Jointed Concrete Pavement
• Sampling-Based Sensitivity Analysis of the "Mechanistic–Empirical Pavement Design Guide" Applied to Material Inputs
• Structural Analysis of Pervious Concrete Pavement
• Thirty-Year Performance Evaluation of Two-Layer Concrete Pavement System
• Toward Implementation of the "Mechanistic–Empirical Pavement Design Guide" in Latin America: Preliminary Work in Chile