Incorporation Of Reliability In Mechanistic Empirical Flexible Pavement Thickness Design
DOWNLOAD
Download Incorporation Of Reliability In Mechanistic Empirical Flexible Pavement Thickness Design PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Incorporation Of Reliability In Mechanistic Empirical Flexible Pavement Thickness Design book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Incorporation Of Reliability In Mechanistic Empirical Flexible Pavement Thickness Design
DOWNLOAD
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.
Incorporation Of Reliability Into The Minnesota Mechanistic Empirical Pavement Design Method
DOWNLOAD
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.
Development Of A Simplified Flexible Pavement Design Protocol For New York State Department Of Transportation Based On The Aashto Mechanistic Empirical Pavement Design Guide
DOWNLOAD
Author : Stefan Anton Romanoschi
language : en
Publisher:
Release Date : 2017
Development Of A Simplified Flexible Pavement Design Protocol For New York State Department Of Transportation Based On The Aashto Mechanistic Empirical Pavement Design Guide written by Stefan Anton Romanoschi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
The New York State Department of Transportation (NYSDOT) has used the AASHTO 1993 Design Guide for the design of new flexible pavement structures for more than two decades. The AASHTO 1993 Guide is based on the empirical design equations developed from the data collected in the AASHO Road Test in the early 1960s. A newer pavement design method, called the Mechanistic-Empirical Pavement Design Guide (MEPDG), was developed by the National Cooperative Highway Research Program (NCHRP) to provide a more efficient and accurate design method that is based on sound engineering principles. The MEPDG models have been incorporated in the AASHTOWare Pavement ME Design 2.1 software program. Due to the advanced principles and design capabilities of the AASHTOWare program, NYSDOT decided to implement the MEPDG and calibrate the distress models included in the software for the conditions in the state. This report summarizes the local calibration of the distress models for the Northeast (NE) region of the United States and the development of new design tables for new flexible pavement structures. Design, performance, and traffic data collected on the Long-Term Pavement Performance (LTPP) sites in the NE region of the United States were used to calibrate the distress models. First, the AASHTOWare Pavement ME Design 2.1 with global calibration factors was used to compare the predicted and measured distress values. The local bias was assessed for all distress models except for the longitudinal cracking model; it was found the bias existed for this model even after calibration. The thermal cracking model was not calibrated because of inaccurate measured data. The calibration improved the prediction capability of the rutting, fatigue cracking, and smoothness prediction models. The calibrated AASHTOWare software was used to run design cases for combinations of traffic volume and subgrade soil stiffness (resilient modulus, Mr) for 24 locations in the state of New York. The runs were performed for a road classified as Principal Arterial Interstate, 90% design reliability level, and 15- and 20-year design periods. State-wide average traffic volume parameters and axle load spectra were used to define the traffic. The configuration specified in the current design table used by NYSDOT, which is included in the Comprehensive Pavement Design Manual (CPDM), was followed for the pavement design solutions. The thicknesses for the select granular subgrade materials and the asphalt layer thicknesses were varied to include several values higher and lower than the thickness recommended by the CPDM. The thicknesses of asphalt surface and binder layers were kept constant; only the thickness of the asphalt base layer was changed. For each design combination, the design case with the thinnest asphalt layer for which the predicted distress was less than the performance criteria was selected as the design solution. The design solutions for each of the 24 locations were assembled in design tables. The comparison of the design tables showed that some variation in the design thickness for the asphalt layers exists with thicker asphalt layers being needed for the locations in the upper part of the New York State. The comparison between the new design tables and the table included in the CPDM proved that the new design tables require thinner asphalt layers at low Annual Average Daily Truck Traffic (AADTT) and thicker asphalt layers at high AADTT than the corresponding designs in the CPDM table.
Framework For Incorporating Rutting Prediction Model In The Reliability Based Design Of Flexible Pavements
DOWNLOAD
Author : Hyung Bae Kim
language : en
Publisher:
Release Date : 1999
Framework For Incorporating Rutting Prediction Model In The Reliability Based Design Of Flexible Pavements written by Hyung Bae Kim 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, Flexible categories.
Mechanistic Empirical Pavement Design Guide Implementation Plan
DOWNLOAD
Author : Todd E. Hoerner
language : en
Publisher:
Release Date : 2007
Mechanistic Empirical Pavement Design Guide Implementation Plan written by Todd E. Hoerner 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.
As AASH is expected to eventually adopt the MEPDG at its primary pavement design method, it is critical that the SDDOT become familiar with the MEPGD documentation and associated design software. The research conducted under this project was a first step toward achieving this goal.
Development Of A Simplified Flexible Pavement Design Protocol For New York State Department Of Transportation Based On Aashto Me Pavement Design Guide
DOWNLOAD
Author : Ali Qays Abdullah
language : en
Publisher:
Release Date : 2015
Development Of A Simplified Flexible Pavement Design Protocol For New York State Department Of Transportation Based On Aashto Me Pavement Design Guide written by Ali Qays Abdullah 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.
New York State Department of Transportation (NYSDOT) has used the AASHTO 1993 Design Guide for the design of new flexible pavement structures for more than three decades. The AASHTO 1993 Guide is based on the empirical relationships developed for the data collected in the AASHO Road Test in the early 1960's. A newer pavement design method, called the Mechanistic-Empirical Pavement Design Guide (MEPDG) was developed by the National Cooperative Highway Research Program to provide a more efficient and accurate design method and based on sound engineering principles. The MEPDG models have been incorporated in the AASHTOWare Pavement ME 2.1 software program that can be purchased from AASHTO. Due to the advanced principles and design capabilities of the AASHTOWare program, NYSDOT decided to implement the MEPDG and calibrate the distress models included in the software for the conditions in the state. The work conducted in this research included the local calibration of the distress models for the North East (NE) region of the United States. Design, performance and traffic data collected on Long Term Pavement Performance (LTPP) sites in the NE region of the United States were used to calibrate the distress models. First, the AASHTOWare Pavement ME 2.1 with global calibration factors was used to compare the predicted and measured distresses, values that were used for model calibration. The local bias was assessed for all distresses models except for the longitudinal cracking model; it was found the bias existed for this model even after calibration. The thermal cracking model was not calibrated because of erroneous measured data. The calibration improved the prediction accuracy for the rutting, fatigue cracking and smoothness prediction models. The AASHTOWare software was used to run design cases for combinations of traffic volume and subgrade soil stiffness (Mr) for twenty-four locations in New York State. The runs were performed for a road classified as Principal Arterial Interstate, the 90% design reliability level and 15 years design period. State-wide average traffic volume parameters and axle load spectra were used to define the traffic. The NYSDOT's Comprehensive Pavement Design Manual (CPDM) was initially used to obtain pavement design solutions. The thicknesses for the select granular subgrade materials and the asphalt layer thicknesses were varied to include several values higher and lower than the thickness recommended by CPDM. The thicknesses of asphalt surface and binder layers were kept constant; only the thickness of the asphalt 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 each of the 24 locations were assembled in design tables. The comparison of the design tables showed that some variation in the design thickness for the asphalt layers exists even, with thicker asphalt layers being needed for the locations in the Upper part of the New York State. The comparison between the new design tables and the table included in the CPDM proved that the new design tables require thinner asphalt layers at low AADTT and thicker asphalt layers at high AADTT than the corresponding design in the CPDM table. For stiff subgrade soil and low AADTT, the design thicknesses are almost the same in the new design tables and in the CPDM table.
Management Of Uncertainty For Flexible Pavement Design Utilizing Analytical And Probabilistic Methods
DOWNLOAD
Author : Jennifer Queen Retherford
language : en
Publisher:
Release Date : 2012
Management Of Uncertainty For Flexible Pavement Design Utilizing Analytical And Probabilistic Methods written by Jennifer Queen Retherford and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Deformations (Mechanics) categories.
Mechanistic Empirical Pavement Design Guide
DOWNLOAD
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.
Implementation Plan For The New Mechanistic Empirical Pavement Design Guide
DOWNLOAD
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.
Implications Of Reliability In Mechanistic Empirical Pavement Design Applications
DOWNLOAD
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.