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Showing 1 to 20 of 32 for “"Mechanistic-Empirical Pavement Design Guide"”.
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A Study of the Mechanistic-Empirical Pavement Design Guide for South Carolina
<p>The Mechanistic-Empirical Pavement Design Guide (MEPDG) provides the highway pavement design community with a new program for the design of flexible and rigid pavement structures using state-of-the-art mechanistic-empirical analyses and performance predictions. This report summarizes a research …
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Prediction of permanent deformations in asphalt concrete using the mechanistic-empirical pavement design guide
… the most serious distress mechanisms in asphalt pavements. Deterioration modeling is an important tool for performance prediction and diagnostics of pavements. The Mechanistic-Empirical Pavement Design Guide (M-E PDG) model used for calculation of permanent deformation in asphalt layers was to be …
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Mechanistic-Empirical Pavement Design Guide (MEPDG) Method Implemented to Estimate Damage in Flexible and Rigid Pavements
<p>The implementation of the Empirical-Mechanistic Pavement Design Guide (MEPDG) method for flexible and rigid pavements requires numerous input parameters. Most of these parameters can be easily determined while some require best estimates that are usually extracted from available literature. This …
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Sensitivity analysis and calibration of the alligator cracking model in the mechanistic-empirical pavement design guide using regional data
<p>The models used in the mechanistic-empirical pavement design guide (M-EPDG) were calibrated using the data from all across the United States. The alligator cracking model uses traffic, material and structural data along with local and global calibration factors to calculate the number of axles …
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Evaluation of the AASHTO Mechanistic Empirical Pavement Design Guide: an experimental and analytical investigation of the performance of flexible roads
… attempt to change the approach to engineering design of road structures. It reflects a shift from total reliance on empirical methods to a combination of mechanistic and empirical methods. Three instrumented road sections were used to capture the impact of local conditions. The measurements …
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Verification of asphalt concrete performance prediction using level 2 and level 3 inputs of mechanistic-empirical pavement design guide for flexible pavements of the state of New Jersey
… the results of the verification study of the Mechanistic-Empirical Pavement Design Guide (M-EPDG) using level 2 and level 3 inputs. In addition, the challenges of verification of the predicted performance with the help of field-measured data of existing flexible pavements are also presented. …
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Cement Stabilized Crushed Stone Base Course Strength and Stiffness Analysis
… transportations (DOTs) utilize the 1993 AASTHO Guide for Design of Pavement Structures (1993 AASHTO) [1] for structural design of pavements. A growing portion of DOT’s are beginning to implement the Mechanistic-Empirical Pavement Design Guide (MEPDG), referred to as AASHTOWare Pavement ME [2]. …
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Validating the empirical distress prediction models within the AASHTOWare Pavement Mechanistic-Empirical Design, using Tennessee pavement performance data from the Long Term Pavement Performance database
The Mechanistic-Empirical Pavement Design Guide (MEPDG) represents a recent pavement design approach, developed to address the shortcomings of the 1993 AASHTO Guide for Design of Pavement Structures. The Pavement Mechanistic-Empirical Design (PMED) software is set to operationalize the …
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Comparative analysis between MERRA and updated MEPDG climate database in the state of Tennessee
The Mechanistic-Empirical Pavement Design Guide (MEPDG) addresses climate effects on pavement design in a comprehensive way, which allows for investigating the effect of climate inputs on pavement performance. However, it requires detailed climate inputs, which might not be available for most of …
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Evaluation and modeling of repeated load test data of asphalt concrete for mechanistic-empirical flexible pavement design
<p>The Mechanistic-Empirical Pavement Design Guide (MEPDG) uses a power model that incorporates Dynamic Modulus (DM) as a factor in predicting rutting performance of asphalt concrete. The rutting model is empirical and the rutting profiles obtained from the model are largely based on the adjustment …
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Evaluation of In-Situ variability of concrete pavement characteristics and their effect on performance
Pavement performance prediction must account for uncertainties in pavement characteristics, climate, traffic loading, etc. Past research identified that concrete thickness and flexural strength were two pavement characteristics that significantly affected transverse cracking in Jointed Plain …
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Mechanistic-Empirical Modeling of Permanent Deformation in Asphalt Concrete Layers
Three mechanistic-empirical permanent deformation models were evaluated under Swedish conditions with respect to traffic, climate and materials using accelerated pavement testing and long-term pavement performance studies. The mechanistic-empirical pavement design guide (M E PDG), the …
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Evaluation of subgrade strength and flexible pavement designs for reliability
Reliability is an important factor in flexible pavement design to consider the variability associated with the design inputs. In this study, subgrade strength variability and flexible pavement designs are evaluated for reliability. The effects of weak subgrade on pavement design and performance …
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Linear viscoelastic characteristics of Michigan asphalt mixtures and the effect of sample size on material properties
The Mechanistic-Empirical Pavement Design Guide (M-E PDG) is becoming the state-of-the-practice in both newly constructed and rehabilitated pavement designs. A number of different material inputs are required by the M-E PDG, and accurate measurement of these inputs is crucial for the accuracy of …
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Experimental Mechanics of Crack Width in Full-Scale Sections of Continuously Reinforced Concrete Pavements
Continuously reinforced concrete pavements have numerous transverse cracks that occur naturally at variable spacing. These cracks do not affect the performance of the structure unless they widen and result in a loss of load transfer efficiency. The capacity to transfer vertical loads across a crack …
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Evaluation of climate data sources and investigation of performance prediction models for mechanistic-empirical pavement designs
<p>The Mechanistic-Empirical Pavement Design Guide (MEPDG), a novel procedure for pavement design practice, was developed under National Cooperative Highway Research Program (NCHRP) research study 1-37A. Subsequently, renamed as DarWin-ME in April 2011, and AASHTOWare Pavement ME design (PMED) in …
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Risk Analysis and Reliability Improvement of Mechanistic-Empirical Pavement Design
<p>Reliability used in the Mechanistic Empirical Pavement Design Guide (MEPDG) is a congregated indicator defined as the probability that each of the key distress types and smoothness will be less than a selected critical level over the design period. For such a complex system as the MEPDG which …
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Adjustment factors for MEPDG pavement responses considering three- dimensional analysis and wide-base tire
The Mechanistic-Empirical Pavement Design Guide (MEPDG) provides a superior methodology as compared to its predecessor in the design and analysis of pavement structures. The mechanistic (MEDPG analysis) calculates critical pavement responses due to pavement-tire interactions. On the other hand, the …
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DETERMINATION OF DYNAMIC MODULI AND PERMANENT DEFORMATION OF MARYLAND ASPHALT MIXTURES USING AMPT
Full implementation of the mechanistic-empirical pavement design guide (MEPDG) in Maryland requires Level 1 (measured) material properties to characterize asphalt mixtures commonly used in the state. Specifically, these proprieties are the dynamic modulus (DM) and the repeated load permanent …
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Sensitivity of MEPDG Using Advanced Statistical Analyses
Recently, pavement design has changed from old method based on empirical relation to a new method called Mechanistic Empirical Pavement Design Guide (MEPDG). It is essential to perform a detailed sensitivity analysis of MEPDG outputs to input variables. In particular, MEPDG inputs need to be …
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