Risk Analysis And Reliabilty Improvement Of Mechanistic Empirical Pavement Design
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Risk Analysis And Reliabilty Improvement Of Mechanistic Empirical Pavement Design
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Author : Danny Xingqiang Xiao
language : en
Publisher:
Release Date : 2012
Risk Analysis And Reliabilty Improvement Of Mechanistic Empirical Pavement Design written by Danny Xingqiang Xiao and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Pavements categories.
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 does not have closed-form design equations, classic reliability methods are not applicable. A robust reliability analysis can rely on Monte Carlo Simulation (MCS). The ultimate goal of this study was to improve the reliability model of the MEPDG using surrogate modeling techniques and Monte Carlo simulation. To achieve this goal, four tasks were accomplished in this research. First, local calibration using 38 pavement sections was completed to reduce the system bias and dispersion of the nationally calibrated MEPDG. Second, uncertainty and risk in the MEPDG were identified using Hierarchical Holographic Modeling (HHM). To determine the critical factors affecting pavement performance, this study applied not only the traditional sensitivity analysis method but also the risk assessment method using the Analytic Hierarchy Process (AHP). Third, response surface models were built to provide a rapid solution of distress prediction for alligator cracking, rutting and smoothness. Fourth, a new reliability model based on Monte Carlo Simulation was proposed. Using surrogate models, 10,000 Monte Carlo simulations were calculated in minutes to develop the output ensemble, on which the predicted distresses at any reliability level were readily available. The method including all data and algorithms was packed in a user friendly software tool named ReliME. Comparison between the AASHTO 1993 Guide, the MEPDG and ReliME was presented in three case studies. It was found that the smoothness model in MEPDG had an extremely high level of variation. The product from this study was a consistent reliability model specific to local conditions, construction practices and specifications. This framework also presented the feasibility of adopting Monte Carlo Simulation for reliability analysis in future mechanistic empirical pavement design software.
Implications Of Reliability In Mechanistic Empirical Pavement Design Applications
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Author : Brian Mark Killingsworth
language : en
Publisher:
Release Date : 1994
Implications Of Reliability In Mechanistic Empirical Pavement Design Applications written by Brian Mark Killingsworth and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
Implementation Plan For The New Mechanistic Empirical Pavement Design Guide
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Author : Y. Richard Kim
language : en
Publisher:
Release Date : 2007
Implementation Plan For The New Mechanistic Empirical Pavement Design Guide written by Y. Richard Kim and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Pavements categories.
Incorporation Of Reliability Into The Minnesota Mechanistic Empirical Pavement Design Method
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Author :
language : en
Publisher:
Release Date : 1999
Incorporation Of Reliability Into The Minnesota Mechanistic Empirical Pavement Design Method written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Pavements, Asphalt categories.
Mechanistic Empirical Pavement Design Guide
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Author : American Association of State Highway and Transportation Officials
language : en
Publisher: AASHTO
Release Date : 2008
Mechanistic Empirical Pavement Design Guide written by American Association of State Highway and Transportation Officials and has been published by AASHTO this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Pavements categories.
Incorporation Of Reliability In Mechanistic Empirical Flexible Pavement Thickness Design
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Author : David Harold Timm
language : en
Publisher:
Release Date : 1997
Incorporation Of Reliability In Mechanistic Empirical Flexible Pavement Thickness Design written by David Harold Timm and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Pavements categories.
Development Of Local Calibration Factors And Design Criteria Values For Mechanistic Empirical Pavement Design
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Author : Bryan Smith
language : en
Publisher:
Release Date : 2015
Development Of Local Calibration Factors And Design Criteria Values For Mechanistic Empirical Pavement Design written by Bryan Smith and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Pavements categories.
A mechanistic-empirical (ME) pavement design procedure allows for analyzing and selecting pavement structures based on predicted distress progression resulting from stresses and strains within the pavement over its design life. The Virginia Department of Transportation (VDOT) has been working toward implementing ME design by characterizing traffic and materials inputs, training with the models and design software, and analyzing current pavement designs in AASHTOware Pavement ME Design software. This study compared the measured performance of asphalt and continuously reinforced concrete pavements (CRCP) from VDOTs Pavement Management System (PMS) records to the predicted performance in AASHTOware Pavement ME Design. Model coefficients in the software were adjusted to match the predicted asphalt pavement permanent deformation, asphalt bottom-up fatigue cracking, and CRCP punchout outputs to the measured values from PMS records. Values for reliability, design life inputs, and distress limits were identified as a starting point for VDOT to consider when using AASHTOware Pavement ME Design through consideration of national guidelines, existing VDOT standards, PMS rating formulas, typical pavement performance at time of overlay, and the data used for local calibration. The model calibration coefficients and design requirement values recommended in this study can be used by VDOT with AASHTOware Pavement ME Design as a starting point to implement the software for design, which should allow for more optimized pavement structures and improve the long-term performance of pavements in Virginia.
Advances In Pavement Design Through Full Scale Accelerated Pavement Testing
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Author : David Jones
language : en
Publisher: CRC Press
Release Date : 2012-09-06
Advances In Pavement Design Through Full Scale Accelerated Pavement Testing written by David Jones and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-09-06 with Technology & Engineering categories.
Pack: Book and CD Internationally, full-scale accelerated pavement testing, either on test roads or linear/circular test tracks, has proven to be a valuable tool that fills the gap between models and laboratory tests and long-term experiments on in-service pavements. Accelerated pavement testing is used to improve understanding of pavement behavior, and evaluation of innovative materials and additives, alternative materials processing, new construction techniques, and new types of structures. It provides quick comparisons between current and new practice and the ability to rapidly validate and calibrate models with quality data, with minimal risk at relatively low cost. Advances in Pavement Design through Full-scale Accelerated Pavement Testing is a collection of papers from the 4th International Conference on Accelerated Pavement Testing (Davies, CA, USA, 19-21 September 2012), and includes contributions on a variety of topics including: - Overview of Accelerated Pavement Testing - Establishment of New Accelerated Pavement Testing Facilities - Review of the Impact of Accelerated Pavement Testing Programs on Practice - Instrumentation for Accelerated Pavement Testing - Accelerated Pavement Testing on Asphalt Concrete Pavements - Accelerated Pavement Testing on Portland Cement Concrete Pavements - Accelerated Pavement Testing to Evaluate Functional Performance - Relating Laboratory Tests to Performance using Accelerated Pavement Testing - Development and Calibration of Empirical and Mechanistic-empirical Pavement Design Procedures and Models - Benefit-cost Analysis of Accelerated Pavement Testing Advances in Pavement Design through Full-scale Accelerated Pavement Testing will be useful to academics and professionals involved in pavement engineering.
Mechanistic Empirical Pavement Design Guide
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Author :
language : en
Publisher:
Release Date : 2021
Mechanistic Empirical Pavement Design Guide written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with Pavements categories.
This addendum provides the additions and revisions to 3rd edition of the MEPDG, including methods and inputs to the fracture-based top-down cracking model.
Structural Behavior Of Asphalt Pavements
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Author : Lijun Sun
language : en
Publisher: Butterworth-Heinemann
Release Date : 2016-08-09
Structural Behavior Of Asphalt Pavements written by Lijun Sun and has been published by Butterworth-Heinemann this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-09 with Technology & Engineering categories.
Structural Behavior of Asphalt Pavements provides engineers and researchers with a detailed guide to the structural behavioral dynamics of asphalt pavement including: pavement temperature distribution, mechanistic response of pavement structure under the application of heavy vehicles, distress mechanism of pavement, and pavement deterioration performance and dynamic equations. An authoritative guide for understanding the key mechanisms for creating longer lasting pavements, Structural Behavior of Asphalt Pavements describes the intrinsic consistency between macroscopic performance and microscopic response, structure and material, as well as global and local performances, and demonstrates the process of pavement analyses and designs, approaching science from empirical analyses. Analyzes the external and internal factors influencing pavement temperature field, and provide a review of existing pavement temperature prediction models Introduces a “Bridge Principle through which pavement performance and fatigue properties are consolidated Defines the intrinsic consistency between macroscopic performance and microscopic response, structure and material, as well as global and local performance Summaries the mechanistic response of pavement structure under the application of heavy vehicle, distress mechanism of pavement, pavement deterioration performance and dynamic equations, and life cycle analysis of pavement