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Validation Of Pavement Performance Measures Using Long Term Pavement Performance Data
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Book Synopsis Validation of Pavement Performance Measures Using Long-term Pavement Performance Data by :
Download or read book Validation of Pavement Performance Measures Using Long-term Pavement Performance Data written by and published by . This book was released on 2018 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of this validation study showed that the performance measures are comprehensive with respect to the state of the practice--they address functional and structural (albeit using cracking as a surrogate) performance. They are balanced as they comprise several individual types of metrics (IRI, cracking, rutting, and faulting), and they show the expected performance trend over time. A parallel study detailed in the FHWA Interstate Pavement Condition Sampling report addresses these and other criteria, including appropriateness or measures at the national level. Although improvements are possible, the performance measures are considered appropriate and valid for their intended purposes.
Book Synopsis Validation of Pavement Performance Measures Using LTPP Data by : Beth A. Visintine
Download or read book Validation of Pavement Performance Measures Using LTPP Data written by Beth A. Visintine and published by . This book was released on 2018 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Federal Highway Administration (FHWA) issued a Notice of Proposed Rulemaking to establish performance measures for the Interstate Highway System (IHS) and the National Highway System (NHS) to assess the condition of the pavement on the IHS and NHS.(1) The performance measures, as proposed by FHWA, to assess the condition of the pavement are based on the percentage of pavements on both the IHS and NHS (excluding the IHS) in good and poor condition. The condition of the pavements is to be determined based on the following metrics: International Roughness Index, cracking percent, rutting, and faulting. The overall objective of the study was to validate the proposed pavement performance measures and demonstrate their use within asset management. Performance and distress data from the Long-Term Pavement Performance database were translated into the pavement condition metrics used by the performance measure proposed by FHWA. The performance measure validation considered review of the performance measures over time to determine if they followed a logical trend; comparison of performance measures against maintenance and rehabilitation (M&R) activities to demonstrate if the performance measures are impacted by M&R activities; and review of the performance measures against thresholds for logic and reproducibility, temporal analysis, effects of alternate thresholds, and identification of performance measure drivers. Standalone guidelines for informing decisionmaking to affect pavement performance measures were also developed based on the study findings; they are provided in a companion report.
Book Synopsis LTPP Data Analysis by : Kathleen Theresa Hall
Download or read book LTPP Data Analysis written by Kathleen Theresa Hall and published by . This book was released on 1997 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several important issues concerning the effect of slab support on concrete pavement performance were studied in a National Cooperative Highway Research Program project, "Support Under Concrete Pavements" (NCHRP 1-30). The results were promising, however, the data that were available for analysis were limited. This study was conducted to further field-verify and develop the improved support guidelines proposed in NCHRP 1-30, using the Long-Term Pavement Performance (LTPP) database, in order to establish their practicality and appropriateness for use in concrete pavement design nationwide. This study was also conducted to further field-verify the proposed revised American Association of State Highway and Transportation Officials (AASHTO) performance model to the fullest extent possible using the design, materials, climate, traffic, and performance data available in the LTPP database for General Pavement Section 3 (GPS-3) (jointed plain concrete pavement), GPS-4 (jointed reinforced concrete pavement), and GPS-5 (continuously reinforced concrete pavement). Guidelines, revised on the basis of the results of this field verification study, are presented in the appendix in the form of a proposed addendum to the AASHTO Design Guide. The documentation of these field verification efforts using the LTPP database is provided in this report.
Book Synopsis Long-Term Performance Program by : R. G. Hicks
Download or read book Long-Term Performance Program written by R. G. Hicks and published by ASCE Publications. This book was released on 2001-01-01 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sponsored by the Highway Division of ASCE; Long-Term Performance Program of the Federal Highway Administration. This collection contains papers from the International Contest on LTPP [Long-Term Performance Program] Data Analysis 1998-1999. This competition involved university students in the analysis of data in the LTPP database. Topics include: effect of locked-in curvature on portland cement concrete pavement; evaluation of a pavement performance prediction model using LTPP data; prediction of pavement performance?a neural network approach; and effectiveness of preventative maintenance strategies for asphalt concrete pavements based on LTPP distress data.
Book Synopsis Long-term Pavement Performance Program by :
Download or read book Long-term Pavement Performance Program written by and published by . This book was released on 2016 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of LTPP Distress Data Variability by : Gonzalo R. Rada
Download or read book Study of LTPP Distress Data Variability written by Gonzalo R. Rada and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Reliable distress data for pavement performance model development and validation, and other pavement engineering products, are critical to the success of the Long-Term Pavement Performance (LTPP) program. Confidence in distress data requires a measure of error because of the bias and precision components of its variability. No systematic evaluation has been performed to quantify the bias and variability associated with both the manual and PASCO film-based distress data. In view of this, this study was undertaken by the Federal Highway Administration (FHWA) to assess the variability of the LTPP distress data, including those in the Information Management System (IMS) and those currently being collected using either photographic or manual methods.
Book Synopsis The Use of Long Term Pavement Performance Data for Quantifying the Relative Effects of Structural and Environmental Factors on the Response and Performance of New Flexible Pavements by : Syed Waqar Haider
Download or read book The Use of Long Term Pavement Performance Data for Quantifying the Relative Effects of Structural and Environmental Factors on the Response and Performance of New Flexible Pavements written by Syed Waqar Haider and published by . This book was released on 2005 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Long-Term Pavement Performance Data Analysis Program: Effect of Dowel Misalignment on Concrete Pavement Performance by : Shreenath P. Rao
Download or read book Long-Term Pavement Performance Data Analysis Program: Effect of Dowel Misalignment on Concrete Pavement Performance written by Shreenath P. Rao and published by . This book was released on 2020 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic imaging tomography (MIT) scanning is a nondestructive method for measuring the alignment of dowels placed at transverse joints of jointed plain concrete pavements (JPCPs). Several highway agencies across the United States have adopted specifications for dowel alignment, with many using the joint score measure. However, this measure was developed intuitively and not based on any laboratory or field tests. National Cooperative Highway Research Program (NCHRP) Report 637 provides a methodology to determine an equivalent dowel diameter measure based on dowel misalignment (Khazanovich et al. 2009). This procedure was developed from laboratory tests and with limited field validation. The relationship between dowel misalignment and the performance of JPCP is unclear, but understanding it is imperative for developing construction guidelines. This report presents results of MIT scanning data collected on Long-Term Pavement Performance (LTPP) test sections and data analysis to assess the effects of dowel misalignment on JPCP performance. As part of this study, MIT scanning was performed on 121 Specific Pavement Studies-2 and 3 General Pavement Studies-3 test sections. Dowel alignment parameters, joint score, and equivalent dowel diameter were calculated as part of the analysis. Statistical analysis was performed to determine any relationship between the joint score and cracking and between the joint score and spalling. The analysis did not indicate any definitive relationship between the joint score and cracking or the joint score and spalling within the analysis range for most States, although some effect was observed for three States. This lack of relationship does not mean severely misaligned dowels have no effect on pavement performance, particularly localized distresses. Analysis of the equivalent dowel diameter as a measure of dowel misalignment for use with AASHTOWare® Pavement ME Design software suggests that using the equivalent dowel diameter is a less-biased estimator of long-term load transfer efficiency (LTE), as modeled using AASHTOWare Pavement ME Design, than using the actual dowel diameter, suggesting a relationship between dowel misalignment and long term LTE (AASHTO 2014). However, there is considerable scatter in the LTE modeled using AASHTOWare Pavement ME Design versus actual LTE. The remaining bias and scatter suggests that the models (i.e., equivalent dowel diameter and LTE in AASHTOWare Pavement ME Design) could potentially be improved using data collected as part of this study.
Book Synopsis Nondestructive Testing of Pavements and Backcalculation of Moduli by : Shiraz D. Tayabji
Download or read book Nondestructive Testing of Pavements and Backcalculation of Moduli written by Shiraz D. Tayabji and published by ASTM International. This book was released on 2000 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: As with the previous two symposia, the 32 papers from the June/July, 1999, Seattle symposium present advances in the nondestructive testing of pavements using conventional falling weight deflectometer techniques and other promising techniques such as ground penetrating radar, rolling weight deflecto
Book Synopsis Pavement Performance Measures and Forecasting and the Effects of Maintenance and Rehabilitation Strategy on Treatment Effectiveness by : Gilbert Y. Baladi
Download or read book Pavement Performance Measures and Forecasting and the Effects of Maintenance and Rehabilitation Strategy on Treatment Effectiveness written by Gilbert Y. Baladi and published by . This book was released on 2017 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Improving Pavements with Long-Term Pavement Performance by :
Download or read book Improving Pavements with Long-Term Pavement Performance written by and published by . This book was released on 2006 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Long-term Pavement Performance Information Management System Data Users Reference Manual by :
Download or read book Long-term Pavement Performance Information Management System Data Users Reference Manual written by and published by . This book was released on 1997 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Long-Term Pavement Performance Information Management System (LTPP IMS) Data Users Reference Manual contains an overview of the LTPP program and the data available to researchers. LTPP is a 20-year study of pavements to improve design, rehabilitation, and maintenance practices. This document is intended to assist researchers in understanding the data that are currently available for General Pavement Studies Experiments and how to obtain it. The General Pavement Studies are a group of asphalt concrete (AC) and portland cement concrete (PCC) experiments using in-service pavements. In addition to materials test results for the pavement sections, data on pavement history, maintenance, and rehabilitation are stored in the IMS. Information on distress, transverse profile, cross profile, pavement deflection, and traffic is collected on a routine basis and added to the data base regularly. The manual includes information on the quality control process.
Book Synopsis Long-term Pavement Performance Program (LTPP) Data Analysis Support by : N. Jackson
Download or read book Long-term Pavement Performance Program (LTPP) Data Analysis Support written by N. Jackson and published by . This book was released on 2006 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Longterm pavement performance information management system pavement performance database user reference guide by :
Download or read book Longterm pavement performance information management system pavement performance database user reference guide written by and published by DIANE Publishing. This book was released on with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structural Behavior of Asphalt Pavements by : Lijun Sun
Download or read book Structural Behavior of Asphalt Pavements written by Lijun Sun and published by Butterworth-Heinemann. This book was released on 2016-08-09 with total page 1072 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis Data Analysis in Pavement Engineering by : Qiao Dong
Download or read book Data Analysis in Pavement Engineering written by Qiao Dong and published by Elsevier. This book was released on 2023-11-06 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data Analysis in Pavement Engineering: Theory and Methodology offers a complete introduction to the basis of the finite element method, covering fundamental theory and worked examples in the detail required for readers to apply the knowledge to their own engineering problems and understand more advanced applications. This edition sees the significant addition of content addressing coupling problems, including Finite element analysis formulations for coupled problems; Details of algorithms for solving coupled problems; and Examples showing how algorithms can be used to solve for piezoelectricity and poroelasticity problems. Focusing on the core knowledge, mathematical and analytical tools needed for successful application, this book represents the authoritative resource of choice for graduate-level students, researchers and professional engineers involved in finite element-based engineering analysis. - This book is the first comprehensive resource to cover all potential scenarios of data analysis in pavement and transportation infrastructure research, including areas such as materials testing, performance modeling, distress detection, and pavement evaluation. - It provides coverage of significance tests, design of experiments, data mining, data modeling, and supervised and unsupervised machine learning techniques. - It summarizes the latest research in data analysis within pavement engineering, encompassing over 300 research papers. - It delves into the fundamental concepts, elements, and parameters of data analysis, empowering pavement engineers to undertake tasks typically reserved for statisticians and data scientists. - The book presents 21 step-by-step case studies, showcasing the application of the data analysis method to address various problems in pavement engineering and draw meaningful conclusions.
Book Synopsis The Development and Assessment of Two Statistical Techniques for Application of Long Term Pavement Performance Studies by : Carol Nan Ma
Download or read book The Development and Assessment of Two Statistical Techniques for Application of Long Term Pavement Performance Studies written by Carol Nan Ma and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents the results of developing and assessing two statistical techniques for the application of New Zealand Long-term Pavement Performance programme studies. The main motivation for this research is to find a technique to interpret condition measurements and understand the performance trend of individual LTPP sites. The investigation started with selecting methodologies for the purpose of analysing time series data. Both Performance Index and Minkowski Distance methods were chosen with the intention to trial both methodologies on LTPP performance data. Roughness and rutting data were used in the analyses. Performance Index and Minkowski Distance were calculated for each LTPP site for roughness and rutting data separately. The two profiles of results showed similar trend. The first analysis was validating the matrix design factors using both Performance Index and Minkowski Distance obtained. It was found that the results showed distinct profiles for only three factors. They are location of sites, traffic volume, and pavement strength. Both methodologies showed similar results. The next analysis performed was correlating factors with performance to observe in detail how each factor affects the roughness and rutting results of LTPP sites. It was observed both location and pavement strength showed good correlation with roughness performance. Some combined factor studies were also undertaken to understand the dominating factors in roughness and rutting development. The result suggested that site location was the dominating factor in determining the both roughness and rutting performance. Both Performance Index and Minkowski Distance results were then compared with structural indices for roughness and rutting to compare the effectiveness of the two methodologies. Both showed very similar trend as the structural indices although values are different. This verified the validity of both methodologies in the application of analysing LTPP performance data. The final recommendation derived from the results of this project is that both Performance Index and Minkowski Distance methods are applicable for summarising performance trend of individual LTPP site. The two methods may also be appropriate for other networks other than LTPP sites. It is hoped that results from this research will contribute to future site specific studies of pavement performance.
