Download or read book Improved Prediction Models for PCC Pavement Performance related Specifications written by and published by . This book was released on 2000 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improved Prediction Models for PCC Pavement Performance related Specifications written by T. E. Hoerner and published by . This book was released on 2000 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current performance-related specifications (PRS) methodology has been under development by the Federal Highway Administration (FHWA) for several years and has now reached a level at which it can be implemented by State highway agencies. PRS for highway pavements depend heavily on performance prediction models to determine the impact of varying levels of construction quality. This study focused on the improvement of the key distress and smoothness prediction models used in the PRS for jointed plain concrete pavement (JPCP). Performance models for transverse joint faulting, transverse slab cracking, transverse joint spalling, and smoothness [International Roughness Index (IRI)] were evaluated and them improved substantially. This was accomplished using a comprehensive national database of JPCP performance data, along with sound statistical and engineering techniques. Performance model calibration guidelines were also developed so that a State can calibrate any of these models specifically to its pavement performance data. This volume, Volume II (Appendix A), contains a complete updated PaveSpec User's Guide.
Download or read book Improved Prediction Models for PCC Pavement Performance related Specifications Final report written by and published by . This book was released on 2000 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The current performance-related specifications (PRS) methodology has been under development by the Federal Highway Administration (FHWA) for several years and has now reached a level at which it can be implemented by State highway agencies. PRS for highway pavements depend heavily on performance prediction models to determine the impact of varying levels of construction quality. This study focused on the improvement of the key distress and smoothness prediction models used in the PRS for jointed plain concrete pavement (JPCP). Performance models for transverse joint faulting, transverse slab cracking, transverse joint spalling, and smoothness (International Roughness Index [MI]) were evaluated and then improved substantially. This was accomplished using a comprehensive national database of JPCP performance data, along with sound statistical and engineering techniques. Performance model calibration guidelines were also developed so that a State cari calibrate any of these models specifically to its pavement performance data. The PaveSpec PRS demonstration software was upgraded to Version 3.0 under this study. Some of the specific improvements incorporated in PaveSpec 3.0 include: 1) incorporation ofyim proved distress indicator models, as well as the ability to calibrate or modify the default models, 2) sensitivity analysis capabilities, 3) expected pay charts, and 4) online help. Appendix A of this report contains a complete updated PaveSpec User's Guide"--Technical report documentation page
Download or read book Improved Prediction Models for PCC Pavement Performance related Specifications written by and published by . This book was released on 2000 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improved prediction models for PCC pavement performance related specifications written by Todd E. Hoerner and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improved Prediction Models for PCC Pavement Performance related Specifications written by and published by . This book was released on 2000 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improved Prediction Models for PCC Pavement Performance related Specifications written by and published by . This book was released on 2000 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Implementing Bicycle Improvements at the Local Level written by and published by . This book was released on 1999 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal aid Policy Guide written by and published by . This book was released on 1995 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Variability in Highway Pavement Construction written by Charles S. Hughes and published by Transportation Research Board. This book was released on 1996 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis will be of interest to state DOT construction, materials, statistical, specification, and inspection engineers; DOT research staff; pavement construction material suppliers; highway construction contractors; and civil engineering consulting firms, including field and laboratory materials testing personnel. The synthesis describes the state of the practice for defining and measuring variability in highway pavement construction. Data obtained from a review of the literature, a survey of state departments of transportation (DOTs), and discussions with selected state DOT personnel and private materials producers are presented. This report of the Transportation Research Board defines several measures of variability but concentrates on the use of standard deviation as the usual measure of variability. The synthesis updates reported typical variabilities found in materials and construction specifications. Also included are discussions of current research activities as related to variability, how variability can be used in the development of specification limits, the use of incentives and disincentives in specifications, and the need for additional information on the variability of several materials and construction processes.
Download or read book Durability of Geosynthetics written by National Research Council (U.S.). Transportation Research Board and published by Transportation Research Board National Research. This book was released on 1994 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laboratory Aging of Asphalt aggregate Mixtures written by Chris A. Bell and published by Strategic Highway Research Program (Shrp). This book was released on 1994 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: The hardening or stiffening associated with heating asphalt is referred to as aging and occurs in two stages: short-term aging, which occurs during mixture mixing and placement, and long-term aging, which occurs throughout the life of the pavement. A portion of the Strategic Highway Research Program has been dedicated to developing accelerated performance tests for aging asphalt mixtures. Two test procedures developed at the Oregon State University utilize oven aging at 135 deg C and 85 or 100 deg C to simulate short- and long-term field aging. This report presents the results of the field validation of these two procedures.
Download or read book Association of Selected Intersection Factors with Red light running Crashes Summary Report Highway Safety Information System written by Yusuf M. Mohamedshah and published by . This book was released on 2000 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geometry and Analysis written by Lizhen Ji and published by . This book was released on 2011 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research and Technology Program written by and published by . This book was released on 1994 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamic Bridge Substructure Evaluation and Monitoring written by FEDERAL HIGHWAY. OLSON ADMINISTRATION (P. E., LARRY D.) and published by . This book was released on 2013-06-06 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research project, "Dynamic Bridge Substructure Evaluation and Monitoring," was sponsored by the Federal Highway Administration (FHWA) under contract number DTFH61-96- C-00030. The research was funded to investigate the possibility that by measuring and modeling the dynamic response characteristics of a bridge substructure, one could determine the condition and safety of the substructure and identify its foundation type (shallow or deep). Determination of bridge foundation conditions with this approach may be applied to quantify losses in foundation stiffness caused by earthquake, scour, and impact events. Identification of bridge foundation type may be employed to estimate bridge stability and vulnerability under dead and live load ratings, particularly for unknown bridge foundations. Chapter 2 introduces the research project scope and presents the results of a literature review of related topics. Chapter 3 describes the bridges in Texas that were selected for modal vibration tests during the research.
Download or read book LTPP Product Plan written by and published by . This book was released on 2001 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
