Guidelines For Portable Weigh In Motion Wim System Installation And Traffic Data Analysis
DOWNLOAD
Download Guidelines For Portable Weigh In Motion Wim System Installation And Traffic Data Analysis PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Guidelines For Portable Weigh In Motion Wim System Installation And Traffic Data Analysis 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
Guidelines For Portable Weigh In Motion Wim System Installation And Traffic Data Analysis
DOWNLOAD
Author : Adrianus Prakoso
language : en
Publisher:
Release Date : 2022
Guidelines For Portable Weigh In Motion Wim System Installation And Traffic Data Analysis written by Adrianus Prakoso and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with Pavements categories.
Product 5-6940-01-P2 has 3 PDFs in 1 zip file: the Instructor's Guide, the Student's Guide, and the PowerPoint slides for the training workshop. As reflected in the PowerPoint slides, the workshop is a half-day course designed to cover: 1. Portable WIM components and the required accessories. 2. Preparation of the portable WIM installation and highway site selection. 3. Portable WIM setup, installation, calibration, maintenance, uninstallation, and troubleshooting. 4. Automated macros for processing and analyzing portable WIM traffic data, such as volume, speed, vehicle classification, and weight data. 5. Automated macros for generating Flexible Pavement Design System (FPS) and Texas Mechanistic-Empirical Flexible Pavement Design System (TxME) traffic input data for pavement design. 6. The MS Access Traffic Data Storage System (T-DSS). 7. Demonstration case studies.
Draft Guidelines For Portable Weight In Motion Wim System Installation And Traffic Data Analysis
DOWNLOAD
Author : Lubinda F. Walubita
language : en
Publisher:
Release Date : 2021
Draft Guidelines For Portable Weight In Motion Wim System Installation And Traffic Data Analysis written by Lubinda F. Walubita and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with Pavements categories.
As the portable weight-in-motion (WIM) technology has been successfully explored and practically used to collect site-specific traffic data in Texas Department of Transportation Research Project 0-6940 Develop System to Render Mechanistic-Empirical Traffic Data for Pavement Design, this standardized guideline was developed to aid users understand more thoroughly the portable WIM system deployment and its operation for traffic data collection. This draft guideline can be used as a main guide for the portable WIM system implementation on Texas highways. As a supporting material, this guideline covers and describes the following points: 1. Portable WIM components and the required accessories. 2. Preparation of the portable WIM installation and highway site selection. 3. Portable WIM setup, installation, calibration, maintenance, uninstallation, and troubleshooting. 4. Automated macros for processing and analyzing portable WIM traffic data, such as volume, speed, vehicle classification, and weight data. 5. Automated macros for generating Flexible Pavement Design System (FPS) and Texas Mechanistic-Empirical Flexible Pavement Design System (TxME) traffic input data for pavement design.
Implementation Of Portable Weigh In Motion Wim Technology On Texas Highways
DOWNLOAD
Author : Adrianus Prakoso
language : en
Publisher:
Release Date : 2022
Implementation Of Portable Weigh In Motion Wim Technology On Texas Highways written by Adrianus Prakoso and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with Pavements categories.
There are a limited number of available permanent WIM stations on the Texas highway network. As such, it is not feasible to generate accurate load spectra data required for pavement design, maintenance, and rehabilitations on every highway project. The net result is unoptimized designs or poor performing pavement structures with increased maintenance costs or high construction costs due to over-designing, with high overall life cycle costs. Deployment of portable WIM technology can offer a practical alternative or supplement as a cost-effective tool to rapidly measure and quantify traffic loading for any given highway site. In research project 0-6940, Develop Systems to Render Mechanistic-Empirical Traffic Data for Pavement Design, portable WIM technology has been successfully explored and demonstrated to accurately measure and collect site-specific traffic data from the intended highway location to supplement the permanent WIM station data for pavement designs and maintenance or rehabilitation. Therefore, statewide portable WIM system implementation was imperative in order to collect traffic data where permanent WIM stations are not available. In this implementation project, standardized procedures and guideline was developed to aid users understand more thoroughly the portable WIM system deployment and its operation for traffic data collection. The guideline includes portable WIM system components, site selection, installation, calibration, troubleshooting, and data analysis. Additionally, long-term portable WIM experimentation and demo-monitoring stations were established for demonstration, training, and certification at the TTI RELLIS campus and several in-service highways. The demo monitoring stations are operational and have been very instrumental in providing technical support for the ongoing statewide portable WIM traffic measurements and data collection efforts.
Using Wim Systems And Tube Counters To Collect And Generate Me Traffic Data For Pavement Design And Analysis
DOWNLOAD
Author : Lubinda F. Walubita
language : en
Publisher:
Release Date : 2019
Using Wim Systems And Tube Counters To Collect And Generate Me Traffic Data For Pavement Design And Analysis written by Lubinda F. Walubita and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Pavements categories.
Axle load spectra data, typically from permanent weigh-in-motion (WIM) stations, constitute the primary mechanistic-empirical (ME) traffic data input for accurate and optimal pavement design and analysis. However, due to the limited number of available permanent WIM stations (mostly located on interstate highways), most ME pavement designs rely on antiquated estimates, even for the 18-kip equivalent single axle loads (ESALs) that often result in un-optimized and costly designs and/or poor-performing pavement structures with increased maintenance costs or high construction costs due to overdesigning -- with high overall life-cycle costs. As a means to address these challenges, this study was initiated, among others, to (a) review the current state-of-the-art methodologies used for estimating ME traffic data inputs, (b) develop clustering algorithms for estimating site-specific ME traffic data, (c) explore the portable WIM as a supplement to the permanent WIM station data, and (d) develop and manage a Microsoft Access ME traffic data storage system (T-DSS). The scope of work included traffic data collection from numerous WIM stations and development of traffic data analysis macros and clustering algorithms. Key findings from the study indicated the following: (a) portable WIM is a cost-effective supplement for site-specific traffic data collection -- with proper installation and calibration, quality traffic data with an accuracy of up to 90% is attainable; (b) the developed WIM data analysis macros are satisfactorily able to compute and generate ME traffic inputs for both flexible and rigid (concrete) pavements; and (c) the developed clustering algorithms and macros constitute an ideal and rapid methodology for predicting and estimating ME traffic data inputs. Key recommendations are continued portable WIM data collection, particularly in West Texas and on farm-to-market (FM) roads, for population of the T-DSS and improved prediction accuracy of the clustering algorithms.
Wim Sensors Accuracy Guidelines For Equipment Selection And Calibration And Traffic Loading Data Applications
DOWNLOAD
Author : Muhammad Munum Masud
language : en
Publisher:
Release Date : 2022
Wim Sensors Accuracy Guidelines For Equipment Selection And Calibration And Traffic Loading Data Applications written by Muhammad Munum Masud and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with Electronic dissertations categories.
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.
Portable Weigh In Motion System Evaluation
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2015
Portable Weigh In Motion System Evaluation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Automatic data collection systems categories.
The Minnesota Local Road Research Board, MnDOT, and SRF performed an evaluation of a portable weigh-inmotion (WIM) system at several locations throughout Minnesota. The system was developed at the University of Minnesota-Duluth and offers roadway designers a low-cost method for obtaining vehicle load distribution data across the state's road network. To deploy the system, the weigh pads of the system were temporarily affixed sensors across the roadway lanes. As vehicles passed over the weigh pads, pressure sensors within the pads detected the weight of vehicles and the system recorded the data for later analysis. Traditional methods for travel monitoring generate traffic volume and classification data, but weigh-in-motion systems give designers a more accurate idea of current and projected traffic loading demands. SRF's testing provided implementation refinements that were incorporated into the system. During the two-year deployment process, the portable WIM system was installed under a wide array of environmental conditions to demonstrate the system's capabilities. Data generated by the system was analyzed. The Final Report details system deployment, calibration, and system accuracy.
Feasibility Of A Portable Weigh In Motion System For Axle Load Data Collection On Secondary Highways
DOWNLOAD
Author : Michael Olfert
language : en
Publisher:
Release Date : 2020
Feasibility Of A Portable Weigh In Motion System For Axle Load Data Collection On Secondary Highways written by Michael Olfert and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
This research investigates the feasibility of using a commercially available portable weigh-in-motion (WIM) system to improve the spatial representation of axle load data from trucks operating on secondary highways. The research evaluated the validity of axle load data collected from three on-road installations next to comparison load data sources, as well as considering the validity of raw and post-processed data. Analysis revealed that portable WIM data cannot achieve the accuracy standard required of ASTM E1318 type II WIM data, but proper installation, calibration, and post-processing can allow portable WIM to have 95% of loads within +/-36% of comparison loads for GVW, within +/-57% for tandem axles, within +/-87% for tridem axles, and within +/-63% for individual axles. Additionally, aggregation and post-processing of the data can allow selected vehicle statistics, such as fully loaded vehicles or GVW distributions, to achieve higher accuracies, potentially allowing for various indirect applications of the data.
Aashto Guidelines For Traffic Data Programs
DOWNLOAD
Author : American Association of State Highway and Transportation Officials. Joint Task Force on Traffic Monitoring Standards
language : en
Publisher: American Association of State Highway & Transportation Officials
Release Date : 1992
Aashto Guidelines For Traffic Data Programs written by American Association of State Highway and Transportation Officials. Joint Task Force on Traffic Monitoring Standards and has been published by American Association of State Highway & Transportation Officials this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Transportation categories.
The objective of these AASHTO Guidelines is to improve the quality of the traffic information that supports decisions at all levels of the transportation profession. The Guidelines provide a reference for professional traffic monitoring and establish a process for adoption of national traffic nomitoring standards. They specifically address concerns of state transportation agencies.
Development Of A Weigh Pad Based Portable Weigh In Motion System
DOWNLOAD
Author : Taek Mu Kwon
language : en
Publisher:
Release Date : 2012
Development Of A Weigh Pad Based Portable Weigh In Motion System written by Taek Mu Kwon and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Motor vehicle scales categories.
Installing permanent in-pavement weigh-in-motion (WIM) stations on local roads is very expensive and requires recurring costs of maintenance trips, electricity, and communication. For county roads with limited average daily traffic (ADT) volume, such a high cost of installation and maintenance is rarely justifiable. One solution to bring WIM technologies to local roads is to utilize a portable WIM system, much like pneumatic tube counters used in short-duration traffic counts. That is, a single unit is reused in multiple locations for few days at a time. This way, WIM data is obtained without the cost of permanent in-pavement WIM stations. This report describes the results of a two-year research project sponsored by the Minnesota Department of Transportation (MnDOT) to develop a portable WIM system that can be readily deployed on local roads. The objective of this project was to develop a portable WIM system that would be used much like a pneumatic tube counter. The developed system is battery operated, low cost, portable, and easily installable on both rigid and flexible pavements. The report includes a sideby- side comparison of data between the developed on-pavement portable WIM system and an in-pavement permanent WIM system.
Pilot Study Of A Portable High Speed Weigh In Motion System Executive Summary
DOWNLOAD
Author : Jeffrey J. Lew
language : en
Publisher:
Release Date : 1988
Pilot Study Of A Portable High Speed Weigh In Motion System Executive Summary written by Jeffrey J. Lew and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Electronic weighing systems categories.