Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Use Of Weigh In Motion Data For Pavement Bridge Weight Enforcement And Freight Logistics Applications
Download Use Of Weigh In Motion Data For Pavement Bridge Weight Enforcement And Freight Logistics Applications full books in PDF, epub, and Kindle. Read online Use Of Weigh In Motion Data For Pavement Bridge Weight Enforcement And Freight Logistics Applications ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Use of Weigh-in-motion Data for Pavement, Bridge, Weight Enforcement, and Freight Logistics Applications by : Darren G. Hazlett
Download or read book Use of Weigh-in-motion Data for Pavement, Bridge, Weight Enforcement, and Freight Logistics Applications written by Darren G. Hazlett and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most U.S. state departments of transportation (DOTs) are collecting weigh-in-motion data with a wide variety of sensor types and using them in a variety of applications. Many agencies use WIM data to aid in pavement design, although most are not currently using a Pavement ME (mechanistic-empirical) Design application. WIM for bridge and asset management purposes is used much less often. The TRB National Cooperative Highway Research Program's NCHRP Synthesis 546: Use of Weigh-in-Motion Data for Pavement, Bridge, Weight Enforcement, and Freight Logistics Applications documents how DOTs incorporate weigh-in-motion data into such applications as bridge and pavement design and management, load ratings, weight enforcement support, and freight planning and logistics.
Book Synopsis Use of Weigh-in-motion Systems for Data Collection and Enforcement by : Wiley D. Cunagin
Download or read book Use of Weigh-in-motion Systems for Data Collection and Enforcement written by Wiley D. Cunagin and published by . This book was released on 1986 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This synthesis will be of interest to planners, pavement designers, administrators, and others interested in knowing the actual weights of vehicles using the highways. Information is presented on current uses of weigh-in-motion systems that can obtain the data needed to properly plan and design highways."--Avant-propos.
Book Synopsis Use of Weigh-in-motion Collected Data in Planning, Pavement Design and Weight Enforcement by : Gati Grundmanis
Download or read book Use of Weigh-in-motion Collected Data in Planning, Pavement Design and Weight Enforcement written by Gati Grundmanis and published by . This book was released on 1988 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Use of Weigh-in-motion Collected Data in Planning, Pavement Design and Weight Enforcement by :
Download or read book Use of Weigh-in-motion Collected Data in Planning, Pavement Design and Weight Enforcement written by and published by . This book was released on 1988 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effective Use of Weigh-in-motion Data by :
Download or read book Effective Use of Weigh-in-motion Data written by and published by . This book was released on 2007 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Use of WIM Collected Data in Planning, Pavement Design and Weight Enforcement by :
Download or read book Use of WIM Collected Data in Planning, Pavement Design and Weight Enforcement written by and published by . This book was released on 1989 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Use of Weigh-in-motion Collected Data in Planning, Pavement Design and Weight Enforcement by : Gati Grundmanis
Download or read book Use of Weigh-in-motion Collected Data in Planning, Pavement Design and Weight Enforcement written by Gati Grundmanis and published by . This book was released on 1989 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of the Bridge Weigh-in-motion System by :
Download or read book Evaluation of the Bridge Weigh-in-motion System written by and published by . This book was released on 1985 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: This demonstration project allowed Wisconsin Dept. of Transportation to test the overall performance of Bridge weigh in motion equipment as well as develop an entirely new comprehensive and representative truck weight database.
Book Synopsis Quality Control Procedures for Weigh-In-Motion Data by : Andrew P. Nichols
Download or read book Quality Control Procedures for Weigh-In-Motion Data written by Andrew P. Nichols and published by . This book was released on 2004-06-15 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wim Sensors Accuracy, Guidelines for Equipment Selection and Calibration, and Traffic Loading Data Applications by : Muhammad Munum Masud
Download or read book Wim Sensors Accuracy, Guidelines for Equipment Selection and Calibration, and Traffic Loading Data Applications written by Muhammad Munum Masud and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weigh-in-Motion (WIM) technology is one of the primary tools used for pavement management. It can provide essential and accurate truck traffic information, including vehicle class and speed, vehicle count, gross vehicle weight (GVW), single axle (SA) and tandem axle (TA) weights, axle spacing, and the date and time of the event. The State Departments of Transportation (DOTs) gather WIM data for various applications, including highway planning, pavement and bridge design, commercial vehicle weight enforcement, asset management, and freight planning and logistics. Overloaded trucks pose severe challenges to road transport operations. Overloaded trucks can cause more damage to the pavement systems than trucks loaded within legal weight limits. Truck overloading can also lead to severe consequences if involved in a traffic accident. Law enforcement agencies divert potentially overloaded trucks to static scales and issue tickets based on the information collected at a WIM station. Because of the wide range of applications, the data obtained at WIM stations must be accurate, consistent, and reflect actual field conditions.This study addressed four critical concerns related to WIM equipment performance, calibration needs, traffic loading data quality, and applications. Precisely, the current research advanced the state of the practice knowledge about (a) potential factors impacting WIM system accuracy, (b) accuracy and consistency of traffic loading data and calibration needs of WIM stations, (c) revised/modified guidelines for WIM equipment calibration, and (d) estimation of commercial freight tonnage from Gross Vehicle Weight (GVW) data. The research objectives were accomplished by synthesizing and analyzing the WIM performance and traffic loading data available in the Long Term Pavement Performance (LTPP) traffic database and data available through other state DOTs. The WIM sites analyzed in this study are from 30 states within the United States and 3 Canadian provinces. Several factors can affect the WIM system accuracy (i.e., measurement error). The potential site-related factors include road geometry, pavement stiffness, surface distresses, roughness, and climate. Decision tree models were developed in this study to illustrate a potential for estimating the expected WIM measurement error range using information about the WIM site and sensor-related factors. The results show that the sensor array and sensor types are the most important predictors, followed by WIM controller functionality (speed points). The data analysis and results also show that the climate can be important for some sensor types. One can integrate this information with equipment installation and life cycle costs to determine the most reliable and economical WIM equipment while also considering accuracy requirements by WIM data users.One way to evaluate WIM measurement errors is by using the data collected immediately before and after equipment calibration. The limitation of this approach is that the data represent a snapshot in time and may not represent a long-term WIM site performance. Consequently, an alternative approach was needed to characterize temporal variations in WIM data consistency. This study presents a method to estimate WIM system accuracy based on axle load spectra attributes [Normalized Axle Load Spectra (NALS) shape factors]. This analysis's main objective is to determine WIM system errors based on axle loading without physically performing equipment calibration. Using NALS to estimate WIM system accuracy can save a significant amount of time and resources, usually spent on equipment calibrations yearly.Successful WIM equipment calibration can eliminate systematic weight, speed, and axle spacing errors. The suggested changes in current WIM calibration procedures related to truck type (loaded truck), number of truck runs, and truck speed (multiple speed points) can significantly reduce the time and resources needed for successful equipment calibration. Accurate freight tonnage estimates and trends are essential due to their implications on economic, infrastructure development, and transportation policy decision-making. This study presents a practical application of WIM data to estimate freight tonnage and classify commodity types. The payloads computed for Class 9 trucks from GVW data strongly correlated with the average freight tonnage obtained from a commercial data source, i.e., Transearch from the IHS market. The user can independently verify the freight estimates from surveys at locations close to WIM sites.
Download or read book Weigh in Motion Data Analysis written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: At hundreds of Weigh in Motion (WIM) stations, State Departments of Transportation collect traffic data every year to support pavement design, to enforce weight restrictions on highways and bridges, and to provide planning data for highway improvements. Reliable WIM data is particularly important to support the procedures in the FHWA Mechanistic Empirical Pavement Design Guide (MEPDG). The purpose of the research is to identify and resolve four related but relatively stand-alone problems associated with WIM data collected by NCDOT. Quality Control: After the NCDOT collects WIM data and converts it from proprietary vendor format to an ASCII text format, the quality of the data must be checked. During the quality control (QC) procedures, tests identify incomplete datasets, out of range values for individual vehicle classes, and other possible data problems. Vehicle class and weight checks generate 0.97% and 6.42% anomalies, respectively thus confirming that NCDOT equipment captured reliable WIM measurements. NC Urban and Rural Truck Traffic Profiles: Knowing the type of traffic by vehicle class by highway functional classification is critical to designing, maintaining and paying for North Carolina highway pavements. Thus, GVW plots by vehicle class and highway functional class are very important. The results indicate that in general, the class 5 and 9 GVW plots for all categories of WIM stations show expected trends. These results may be used by highway planners and pavement designers to quickly determine typical truck traffic profiles in the various NC regions and provide insight into NC truck transportation flows. NC vs. University Of Arkansas WIM QC Analysis: Most highway agencies have the data collection and design groups in different units. While a single software solution is not practical, it is recommended to perform two separate processes where the output of data QC meets the needs and standards of the design process. A comparative analysis between the QC meth.
Book Synopsis LTBP Program's Literature Review on Weigh-in-motion Systems by : Imad Al-Qadi
Download or read book LTBP Program's Literature Review on Weigh-in-motion Systems written by Imad Al-Qadi and published by . This book was released on 2016 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Truck size and weight are regulated using Federal and State legislation and policies to ensure safety and preserve bridge and high infrastructure. Weigh-in-motion (WIM) systems can capture the weight and other defining characteristics of the vehicles actually using the Nation's highways, providing important loading-related data that is essential for evaluating the performance of transportation infrastructure. As part of the Federal Highway Administration's (FHWA) Long-Term Bridge Performance (LTBP) Program's Technical Assistance Contract, a literature review of the state of the practice was performed for WIM systems installed in pavements and on bridges. This literature review focused on the development of WIM systems, concepts for measuring axle loads, the applications of WIM sensors for pavements, and recent advancements in bridge WIM system. This review covers the types, installation, calibration, operations, accuracy, efficiency, effectiveness, and durability of WIM systems, in addition to current Federal and State truck load regulations. This review facilitates selection of the appropriate WIM technology systems for consideration and use to address LTBP Program needs. This literature review serves as a reference document for Pooled Fund Project Number TPF-5(283), The Influence of Vehicular Live Loads on Bridge Performance, which targets the impact of vehicle live loads on bridge component durability.
Book Synopsis Tools for Assuring WIM Data Quality by : Olga I. Selezneva
Download or read book Tools for Assuring WIM Data Quality written by Olga I. Selezneva and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Weigh-in-motion (WIM) systems provide an estimate of the static weight of moving vehicles. WIM data is used for transportation and freight planning, pavement and bridge design, and highway safety investigations. NCHRP Research Report 1070: Tools for Assuring WIM Data Quality: Practical Guide, from TRB's National Cooperative Highway Research Program, provides state departments of transportation with new procedures to help practitioners improve accuracy and increase the reliability of WIM data. Supplemental to the report are NCHRP Web-Only Document 370: LTPP Data Analysis: Practical Tools and Procedures to Improve WIM Data Quality and six Excel spreadsheet tools."--Publisher's website
Book Synopsis ITF Research Reports Moving Freight with Better Trucks Improving Safety, Productivity and Sustainability by : OECD
Download or read book ITF Research Reports Moving Freight with Better Trucks Improving Safety, Productivity and Sustainability written by OECD and published by OECD Publishing. This book was released on 2011-04-19 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report identifies potential improvements in terms of more effective safety and environmental regulation for trucks, backed by better systems of enforcement, and identifies opportunities for greater efficiency and higher productivity.
Book Synopsis Development of a Bridge Weigh-in-Motion System by : Arturo Gonzalez
Download or read book Development of a Bridge Weigh-in-Motion System written by Arturo Gonzalez and published by LAP Lambert Academic Publishing. This book was released on 2010-05 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weigh-in-Motion (WIM) data can be used to predict future traffic volumes and weights for the planning of new infrastructure, the management of maintenance activities, the identification/reduction of overloading problems and the evaluation of the performance of pavements and bridges. Most WIM systems are based on sensors placed in or on the pavement that measure the wheel force applied over them during a very short time. The value of this force varies as a result of road roughness and vehicle dynamics leading to limited accuracy for estimating static weights. Additionally, these systems experience durability problems due to traffic and environmental conditions. An alternative approach to WIM that addresses these limitations is the use of an instrumented bridge to weigh vehicles (B-WIM). This approach is the subject of research in this book. Inaccuracies derived from discrepancies between theoretical B-WIM algorithms and bridge measurements are investigated both theoretically and experimentally. The text also describes the development of a B-WIM system in Ireland, including all aspects of installation, calibration, data collection and its processing into useful traffic information.
Book Synopsis Evaluation of Weigh-in-motion Systems by : Benjamin H. Cottrell
Download or read book Evaluation of Weigh-in-motion Systems written by Benjamin H. Cottrell and published by . This book was released on 1992 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research was to evaluate low cost weigh-in-motion systems. The three systems evaluated were (1) a capacitance weigh mat system, (2) a bridge weighing system, and (3) a piezoelectric cable sensor system. All three systems have a two-lane capability. An evaluation was made of (1) the quality of the data, (2) the performance of the equipment, (3) the applications of the equipment and its ease ofuse, and (4) the format of the data and its usefulness. Although objective data were used when possible, the majority of the evaluation is subjective. The quality of the data from each of the three systems is about the same. The piezoelectric cable system provides slightly lower quality data than the other two systems. The equipment of the capacitance weigh mat performed well; that of the bridge system was adequate; and there was concern about the durability of the piezoelectric cable system. Because of the tradeoffs between the capacitance weigh mat system and the bridge system, it is difficult to rank them. The piezoelectric cable system's sensors are permanently installed; therefore, it is not as portable as the other two systems. With regard to the format of the data and its usefulness (which are dependent mostly on the software and not the sensors), the capacitance weigh mat system is flexible and provides individual truck records in two formats, the bridge system provides the most comprehensive tables, and the piezoelectric cable system is limited and depends on other software to generate additional tables. Suggestions are made about how to use the systems and how to improve their performance.
Book Synopsis Analysis and Evaluation of Weigh-in-motion Data for Pavement Application by : Rosa L. Santoni Santiago
Download or read book Analysis and Evaluation of Weigh-in-motion Data for Pavement Application written by Rosa L. Santoni Santiago and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
