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Implications Of Reliability In Mechanistic Empirical Pavement Design Applications
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Book Synopsis Implications of Reliability in Mechanistic/empirical Pavement Design Applications by : Brian Mark Killingsworth
Download or read book Implications of Reliability in Mechanistic/empirical Pavement Design Applications written by Brian Mark Killingsworth and published by . This book was released on 1994 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Association of State Highway and Transportation Officials Publisher :AASHTO ISBN 13 :156051423X Total Pages :218 pages Book Rating :4.5/5 (65 download)
Book Synopsis Mechanistic-empirical Pavement Design Guide by : American Association of State Highway and Transportation Officials
Download or read book Mechanistic-empirical Pavement Design Guide written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 2008 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mechanistic-Empirical Pavement Design Guide by :
Download or read book Mechanistic-Empirical Pavement Design Guide written by and published by . This book was released on 2015 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication describes a pavement design methodology, termed mechanistic-empirical (M-E) pavement design, that represents a major change from the pavement design methods in practice today. Based on engineering mechanics that have been validated through extensive road test performance data, the manual presents information necessary for pavement design engineers to begin using use the MEPDG design and analysis method. The manual references AASHTOWare Pavement ME Design, M-E Pavement design software, commercially available through AASHTOWare, AASHTO's software development program. AASHTOWare Pavement ME Design has been revised from the software described in the previous edition of this manual, based upon evaluations performed by state departments of transportation and others in the community of practice. The book contains 13 chapters. After an introductory chapter, the chapters address: referenced documents and standards; significance and use of the MEPDG; terminology and definition of terms; performance indicator prediction methodologies; general project information; selection design criteria and reliability level; determining site conditions and factors; pavement evaluation for rehabilitation design; determination of materials properties for new paving materials; pavement design strategies; rehabilitation design strategies; and interpretation and analysis of the results of the trial design.
Book Synopsis Risk Analysis and Reliabilty Improvement of Mechanistic-empirical Pavement Design by : Danny Xingqiang Xiao
Download or read book Risk Analysis and Reliabilty Improvement of Mechanistic-empirical Pavement Design written by Danny Xingqiang Xiao and published by . This book was released on 2012 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Incorporation of Reliability Into the Minnesota Mechanistic-empirical Pavement Design Method by :
Download or read book Incorporation of Reliability Into the Minnesota Mechanistic-empirical Pavement Design Method written by and published by . This book was released on 1999 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Incorporation of Reliability in Mechanistic-empirical Flexible Pavement Thickness Design by : David Harold Timm
Download or read book Incorporation of Reliability in Mechanistic-empirical Flexible Pavement Thickness Design written by David Harold Timm and published by . This book was released on 1997 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Theses in the Pure and Applied Sciences by : Wade H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 39 (thesis year 1994) a total of 13,953 thesis titles from 21 Canadian and 159 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 39 reports theses submitted in 1994, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.
Book Synopsis Application of Empirical and Mechanistic-empirical Pavement Design Procedures to Mn/ROAD Concrete Pavement Test Sections by : Thomas R. Burnham
Download or read book Application of Empirical and Mechanistic-empirical Pavement Design Procedures to Mn/ROAD Concrete Pavement Test Sections written by Thomas R. Burnham and published by . This book was released on 1997 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Improvements to Strain Computation and Reliabilty Analysis of Flexible Pavements in the Mechanistic-empirical Pavement Design Guide by : Senthilmurugan Thyagarajan
Download or read book Improvements to Strain Computation and Reliabilty Analysis of Flexible Pavements in the Mechanistic-empirical Pavement Design Guide written by Senthilmurugan Thyagarajan and published by . This book was released on 2009 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 7th RILEM International Conference on Cracking in Pavements by : A. Scarpas
Download or read book 7th RILEM International Conference on Cracking in Pavements written by A. Scarpas and published by Springer Science & Business Media. This book was released on 2012-08-30 with total page 1340 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the recent past, new materials, laboratory and in-situ testing methods and construction techniques have been introduced. In addition, modern computational techniques such as the finite element method enable the utilization of sophisticated constitutive models for realistic model-based predictions of the response of pavements. The 7th RILEM International Conference on Cracking of Pavements provided an international forum for the exchange of ideas, information and knowledge amongst experts involved in computational analysis, material production, experimental characterization, design and construction of pavements. All submitted contributions were subjected to an exhaustive refereed peer review procedure by the Scientific Committee, the Editors and a large group of international experts in the topic. On the basis of their recommendations, 129 contributions which best suited the goals and the objectives of the Conference were chosen for presentation and inclusion in the Proceedings. The strong message that emanates from the accepted contributions is that, by accounting for the idiosyncrasies of the response of pavement engineering materials, modern sophisticated constitutive models in combination with new experimental material characterization and construction techniques provide a powerful arsenal for understanding and designing against the mechanisms and the processes causing cracking and pavement response deterioration. As such they enable the adoption of truly "mechanistic" design methodologies. The papers represent the following topics: Laboratory evaluation of asphalt concrete cracking potential; Pavement cracking detection; Field investigation of pavement cracking; Pavement cracking modeling response, crack analysis and damage prediction; Performance of concrete pavements and white toppings; Fatigue cracking and damage characterization of asphalt concrete; Evaluation of the effectiveness of asphalt concrete modification; Crack growth parameters and mechanisms; Evaluation, quantification and modeling of asphalt healing properties; Reinforcement and interlayer systems for crack mitigation; Thermal and low temperature cracking of pavements; and Cracking propensity of WMA and recycled asphalts.
Book Synopsis Development of a Flexible Pavement Design Procedure Based on the Mechanistic-empirical Pavement Design Guide by : Ali Qays Abdullah
Download or read book Development of a Flexible Pavement Design Procedure Based on the Mechanistic-empirical Pavement Design Guide written by Ali Qays Abdullah and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This research developed design tables of new flexible pavement structures for New York State Department of Transportation based on the Mechanistic Empirical Design Guide (MEPDG). The design tables were developed using the MEPDG software for Regions 1, 3, and 7 for Upstate part of New York State and for Regions 8, 10, and 11 for the Downstate part of New York State. The MEPDG software was used to run design cases for combinations of: climate conditions, traffic volume, subgrade soil stiffness (Mr) and pavement structures. The conditions that the MEPDG was used to run were: the road structures classified as Principal Arterial Interstate, design 95%reliability level, 15 and 20 year analysis period. Weight in Motion (WIM) data of Region 7 were used for Region 1 and 2, also WIM data of Region 8 were used for Region 10 and 11. Climatic data specifically for each region were used. The NYSDOT's Comprehensive Pavement Design Manual (CPDM) was initially used to obtain pavement design solutions for Region 7 and 8. The granular subbase materials and thicknesses recommended by CPDM were used but only the asphalt layer thicknesses was varied to include several values higher and lower than the thickness recommended by CPDM. The thickness of asphalt binder and surface layers were kept constant. Only the thickness of the base layer was changed. For each design combination, the design case with thinnest asphalt layer for which the predicted distress was less the performance criteria was selected as the design solution. The design solutions for Regions 7 and 8 were assembled in design tables. The examination of the design tables proved that, in general, Region 7 requires thicker pavement structures than Region 8 for same Annual Average Daily Truck Traffic (AADTT) and Resilient Modulus. In the second phase, the MEPDG was used to run for Region 1, 3, 10, 11. The design solutions were tabulated first to produce the design tables for each design case. Since it was expected that the climate changing has no effects on the design solutions for the regions which belong to the same New York State part, the design tables of Region 7 were compared with the design tables of Regions 1 and 3. In addition, the design tables of Region 8 were compared with those obtained for Regions 10 and 11. The comparisons proved that the change in location within the same part of New York State affects the design solution for the same combination of subgrade soil stiffness and truck traffic volume. In the third phase, the design tables for 80% design reliability were produced for each selected region. The design tables which were developed by this study provide flexibility to the designer to design the new flexible pavement structure. The designer should select the subgrade (Mr), AADTT, design life, and the design reliability; then, the design solution could be obtained directly from the tables.
Book Synopsis Reliability Associated with the Estimation of Soil Resilient Modulus at Different Hierarchical Levels of Pavement Design by : Daniel Rosenbalm
Download or read book Reliability Associated with the Estimation of Soil Resilient Modulus at Different Hierarchical Levels of Pavement Design written by Daniel Rosenbalm and published by . This book was released on 2011 with total page 687 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deterministic solutions are available to estimate the resilient modulus of unbound materials, which are difficult to interpret because they do not incorporate the variability associated with the inherent soil heterogeneity and that associated with environmental conditions. This thesis presents the stochastic evaluation of the Enhanced Integrated Climatic Model (EICM), which is a model used in the Mechanistic-Empirical Pavement Design Guide to estimate the soil long-term equilibrium resilient modulus. The stochastic evaluation is accomplished by taking the deterministic equations in the EICM and applying stochastic procedures to obtain a mean and variance associated with the final design parameter, the resilient modulus at equilibrium condition. In addition to the stochastic evaluation, different statistical analyses were applied to determine that the uses of hierarchical levels are valid in the unbound pavement material design and the climatic region has an impact on the final design resilient moduli at equilibrium. After determining that the climatic regions and the hierarchical levels are valid, reliability was applied to the resilient moduli at equilibrium. Finally, the American Association of State Highway and Transportation Officials (AASHTO) design concept based on the Structural Number (SN) was applied in order to illustrate the true implications the hierarchical levels of design and the variability associated with environmental effects and soil properties have in the design of pavement structures. The stochastic solutions developed as part of this thesis work together with the SN design concept were applied to five soils with different resilient moduli at optimum compaction condition in order to evaluate the variability associated with the resilient moduli at equilibrium condition. These soils were evaluated in five different climatic regions ranging from arid to extremely wet conditions. The analysis showed that by using the most accurate input parameters obtained from laboratory testing (hierarchical Level 1) instead of Level 3 analysis could potentially save the State Department of Transportation up to 10.12 inches of asphalt in arid and semi-arid regions.
Book Synopsis Framework for Incorporating Rutting Prediction Model in the Reliability-based Design of Flexible Pavements by : Hyung Bae Kim
Download or read book Framework for Incorporating Rutting Prediction Model in the Reliability-based Design of Flexible Pavements written by Hyung Bae Kim and published by . This book was released on 1999 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Association of State Highway and Transportation Officials Publisher :AASHTO ISBN 13 :1560510552 Total Pages :622 pages Book Rating :4.5/5 (65 download)
Book Synopsis AASHTO Guide for Design of Pavement Structures, 1993 by : American Association of State Highway and Transportation Officials
Download or read book AASHTO Guide for Design of Pavement Structures, 1993 written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 1993 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design related project level pavement management - Economic evaluation of alternative pavement design strategies - Reliability / - Pavement design procedures for new construction or reconstruction : Design requirements - Highway pavement structural design - Low-volume road design / - Pavement design procedures for rehabilitation of existing pavements : Rehabilitation concepts - Guides for field data collection - Rehabilitation methods other than overlay - Rehabilitation methods with overlays / - Mechanistic-empirical design procedures.
Book Synopsis Mechanistic-empirical Modeling in Network Pavement Management Systems by : Scott A. Schram
Download or read book Mechanistic-empirical Modeling in Network Pavement Management Systems written by Scott A. Schram and published by . This book was released on 2008 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Consideration of Preservation in Pavement Design and Analysis Procedures by :
Download or read book Consideration of Preservation in Pavement Design and Analysis Procedures written by and published by . This book was released on 2015 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Highway Research Program (NCHRP) Report 810: Consideration of Preservation in Pavement Design and Analysis Procedures explores the effects of preservation on pavement performance and service life and describes three different approaches for considering these effects in pavement design and analysis procedures. The report may serve as a basis for developing procedures for incorporating preservation in the American Association of State Highway and Transportation Officials (AASHTO) Mechanistic-Empirical Pavement Design Guide: A Manual of Practice (MEPDG) and the AASHTOWare Pavement ME Design software. Initially, the scope of this project intended to develop procedures for incorporating pavement preservation treatments into the MEPDG design analysis process that would become part of the MEPDG Manual of Practice. However, it was determined that sufficient data were not available to support the development of such procedures. Appendices A through I are available online only." --
Book Synopsis Development of Local Calibration Factors and Design Criteria Values for Mechanistic-empirical Pavement Design by : Bryan Smith
Download or read book Development of Local Calibration Factors and Design Criteria Values for Mechanistic-empirical Pavement Design written by Bryan Smith and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
