Author : Brian M. Killingsworth
Publisher :
Page : 288 pages
File Size : 28,60 MB
Release : 1994
Category : Pavements
ISBN :
The purpose of this volume is to provide statistical data that may be used to characterize the nature of the data in the various data sets. The specific data sets are the General Pavement Studies (GPS)-1, GPS-2, GPS-3, GPS-4, and GPS-5 data. Data were obtained from the Long-Term Pavement Performance (LTPP) Data Base (also referred to as the LTPP Information Management System).
Author : J. Brent Rauhut
Publisher : Strategic Highway Research Program (Shrp)
Page : 48 pages
File Size : 22,51 MB
Release : 1994
Category : Technology & Engineering
ISBN :
This summary presents the results of the first data analyses of the Strategic Highway Research Program Long-Term Pavement Performance (LTPP) project. Data analyzed included information collected up to 1992. These analyses included: 1) developing a data analysis plan, 2) receipt and processing of data into suitable data bases for analysis and conducting statistical evaluations of the data bases, 3) using the LTPP data to evaluate the American Association of State Highway and Transportation Officials (AASHTO) design equations, 4) conducting sensitivity analyses to identify the independent variables that have significant impacts on pavement performance and to quantify the relative impact of each, and 5) using the experience gained from these early data analyses to recommend concepts for future data analyses.
Author : J. Brent Rauhut
Publisher :
Page : 114 pages
File Size : 42,31 MB
Release : 1994
Category : Pavements
ISBN :
The purpose of this report is to share the experience gained and lessons learned by research staff during early data analyses of the General Pavement Studies (GPS) and to recommend procedures for future analysts. A review of the techniques used is provided. Shortcomings of the Long-Term Pavement Performance (LTPP) Data Base, known at the time of early analyses, are discussed and data base expectations for future analyses were identified. Some interesting and useful distress and roughness prediction models were developed that illustrate the effects of several design variables. Other analytical procedures for developing predictive equations were identified and described, which may be of use in future analyses. Ten techniques used by the research staff for evaluating the American Association of Highway and Transportation Officials (AASHTO) design equations are identified and recommendations for future evaluations provided.
Author : William O. Hadley
Publisher :
Page : 120 pages
File Size : 33,54 MB
Release : 1994
Category : Pavements
ISBN :
One of the principal objectives of the Strategic Highway Research Program Long-Term Pavement Performance (SHRP-LTPP) study was the development of a comprehensive electronic media database for housing pavement performance data covering a wide range of conditions and service life factors. The database was structured to address pavement management and engineering design issues. The extent and scope of information contained within the LTPP database and Information Management System (IMS) also provides the resources not only to evaluate or revise existing design equations but to develop new ones. During the first 5 years of the SHRP-LTPP program, most issues have been addressed in various data analysis studies. Data analysis studies concerning load equivalency factors, materials and construction variability, rutting initiation studies, and the results of the specific SHRP-LTPP data analysis contracts are presented in subsequent sections of this report. These studies represent initial efforts in pursuit of LTPP goals and operatives and are based primarily on early General Pavement Studies data.
Author : William O. Hadley
Publisher : National Research Council
Page : 340 pages
File Size : 33,9 MB
Release : 1994
Category : Technology & Engineering
ISBN :
This report provides an overview of the first 5 years of the Strategic Highway Research Program Long-Term Pavement Performance (SHRP-LTPP) program. The background, LTPP history, activities and approaches, and decision-making processes of the program are detailed. Included are summaries of the studies initiated for general and specific pavement types, the characterization of pavement materials, monitoring activities, the LTPP database and Information Management System, data analysis, traffic data collection and analysis, as well as a summary of the contributions made by international participants. The general LTPP program is described and the expected results, products, and benefits are also outlined.
Author : Starr D. Kohn
Publisher :
Page : 8 pages
File Size : 28,25 MB
Release : 2002
Category : Pavements
ISBN :
"An NCHRP digest of the findings from the final report on NCHRP Project 20-50(08/13), "LTTP data analysis: factors affecting pavement smoothness," conducted by Soil and Materials Engineers, Inc. Dr. Starr D. Kohn served as Principal Investigator."
Author :
Publisher :
Page : 64 pages
File Size : 28,95 MB
Release : 1993
Category : Highway research
ISBN :
Author : National Research Council (U.S.). Committee for Study of Public Policy for Surface Freight Transportation
Publisher : Transportation Research Board
Page : 184 pages
File Size : 12,57 MB
Release : 1996
Category : Business & Economics
ISBN : 9780309062176
Provides a preliminary examination of whether shippers of domestic surface freight pay the full social costs of the services that they use. This study is intended not to provide definitive answers as to whether shippers pay their full social costs, but rather to determine the feasibility of making such estimates.
Author : Robert L. Schmitt (Ph.D.)
Publisher :
Page : 134 pages
File Size : 11,38 MB
Release : 2010
Category : Pavements, Asphalt concrete
ISBN :
Author :
Publisher :
Page : 340 pages
File Size : 28,80 MB
Release : 1994
Category : Highway engineering
ISBN :
