2009 ... Joshua M. Mouras [and three others] · The ability of shear studs to transfer vertical tension forces from a fractured girder to intact bridge components was investigated. The effect of haunches in the deck, stud length, number of studs, and arrangement of the studs was evaluated in static and dynamic tests. Revised stud strength
5498-2 [CTR] ... 9-5498-2
Full-text Link:
2010 ... Timothy Barnard [and eight others] · Bridges that are classified as "fracture critical" by AASHTO require more frequent inspections than other types of bridges, resulting in greater costs for their maintenance. Several historical events have shown, however, that severe damage can occur to a bridge without necessarily resulting in
5498-1 [CTR] ... FHWA/TX-10/9-5498-1
Full-text Link:
2009 ... Jorge Prozzi and Andre Smit · This project has demonstrated that it is possible to track the network-level performance of surface mixtures constructed in Texas. A procedure is outlined in the report to accomplish this and involves firstly identifying a project’s extents in terms of Texas Reference Marker (TRM) information. A web-based
5496-1 [CTR] ... 0-5496-1
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2009 ... Randall J. Charbeneau, Michael E. Barrett and J. Brandon Klenzendorf · This research program addresses issues associated with the hydraulic effects of bridge rails on floodwater levels upstream of bridge structures. The hydraulics of bridge rails and traffic barrier systems are not well understood, especially with regard to rail/barrier
5492-2 [CTR] ... 0-5492-2
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2009 ... Randall J. Charbeneau, Michael E. Barrett and J. Brandon Klenzendorf · This research program addresses issues associated with the hydraulic effects of bridge rails on floodwater levels upstream of bridge structures. The hydraulics of bridge rails and traffic barrier systems are not well understood, especially with regard to rail/barrier
5492-1 [CTR] ... 0-5492-1
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2008 ... Dongho Kim, Chul Suh and Moon Won · Several thin whitetopping (TWT) projects in the U.S. were reviewed to identify variables with significant effects on TWT behavior and performance. The joint spacing has a significant effect on performance as it determines the wheel loading condition in the slabs. Joints placed under or
5482-2 [CTR] ... FHWA/TX-09/0-5482-2
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2008 ... Dong-Ho Kim, Mohammad R. Suliman and Moon Won · The primary objective of this report is to summarize the findings of the literature review on the performance of whitetopping test sections and design procedures. Two questions face pavement engineers who consider using Portland cement concrete (PCC) overlays
5482-1 [CTR] ... FHWA/TX-08/0-5482-1
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2007 ... Carlos H. Caldas, G. Edward Gibson and Tiendung Le · The Advance Planning Risk Analysis (APRA) for transportation projects is a powerful and easy-to-use tool that offers a method to measure project scope definition for completeness and identify potential risks early in the project. In other words, it helps optimize the identification
5478-P2 [CTR] ... Product 0-5478-P2
Full-text Link:
2007 ... Carlos H. Caldas, G. E. Gibson and Tiendung Le · The Advance Planning Risk Analysis (APRA) computer tool (program) was developed to help participants optimize the identification of requirements during the project development process through the analysis of risk elements. | The Tool and accompanying User Guide is a
5478-P1 a [CTR] ... Product 0-5478-P1a
Full-text Link:
2007 ... Carlos H. Caldas, G. Edward Gibson and Tiendung Le · This document is the User Guide for the Advance Planning Risk Analysis (APRA) computer tool (program), which was developed to help participants optimize the identification of requirements during the project development process through the analysis of risk elements. This
5478-P1 [CTR] ... Product 0-5478-P1
Full-text Link:
2007 ... Carlos H. Caldas, Tiendung Le, G. Howard Gibson Jr. and Michael Thole · The determination of right-of-way requirements during the project development process depends on many factors including proposed alignment, typical sections, access control, and accommodation for construction, drainage, clear zone, highway access
5478-1 [CTR] ... 0-5478-1
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2009 ... Moon Won and Sureel Saraf · "This document provides description of the rigid pavement database (called RPDB in this document) developed under TxDOT Research Project 0-5445. This document also provides a breakdown of the various components of the RPDB, including the database contents, managing and storing the
5445-P2 [CTR] ... Product 0-5445-P2
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2007 ... Cesar Medina and Moon Won · 2005-2006 raw FWD and other data for PCC test sections in Amarillo, Childress, and Lubbock. | "4. Documentation of special pavement sections: TxDOT has built numerous special PCC pavement sections. Examples include grade 70k steel sections, fast track pavement sections, sections with 100%
5445-P1 [CTR] ... Product 0-5445-P1
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2009 ... Moon Won · TxDOT initiated the rigid pavement database project to collect information on the general performance of portland cement concrete (PCC) pavement as well as to collect project-level information on PCC pavement responses and performance. A total 27 sections were selected statewide and detailed information was
5445-3 [CTR] ... FHWA/TX-09/0-5445-3
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2008 ... Cesar Medina and Moon Won · Microscopic behavior and distress types in continuously reinforced concrete pavement (CRCP) were investigated using the information in TxDOT's rigid pavement database. Crack width behavior was evaluated using the information from two test sections. Transverse crack width decreased over time,
5445-2 [CTR] ... FHWA/TX-09/0-5445-2
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2006 ... Cesar Ivan Medina-Chavez and Moon Won · This report summarizes the tasks performed for TxDOT Research Project 0-5445 "Project Level Performance Database for Rigid Pavements in Texas." Other pavement databases have been evaluated and their successes and failures have been considered for the preparation of this
5445-1 [CTR] ... 0-5445-1
Full-text Link:
2008 ... Moon Won [and five others] · Researchers surveyed DOTs in the U.S. and searched published literature for effective means of repairing and rehabilitating pavements with longitudinal cracking or longitudinal cracking. These methods included field assessment for determining the severity of the causes of the symptoms and
5444-2 [CTR] ... FHWA/TX-09/0-5444-2
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2009 ... by David Whitney and David W. Fowler · Recommendations for repair of U.S. 75 are included for the longitudinally faulted and longitudinally separated slabs located near Dennison, Texas. The following items are included: 1 Construction Sequence and Materials Estimates for US 75 Repairs; 2 Details, construction specifications
5444-01-P1 [CTR] ... Product 5-5444-01-P1
Full-text Link:
2012 ... David W. Fowler, David Whitmey, Soojun Ha, Moon Won · Implementation Project 5-5444-01, “Pilot Implementation of Pavement Repair Guidelines for Longitudinal Cracks and Joints,” applies the lessons and recommendations from the previous Texas Department of Transportation (TxDOT) funded Center for
5444-01-1 [CTR] ... FHWA/TX-11/5-5444-01-1
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2007 ... Moon Won [and four others] · Interim Repair Guidelines for Longitudinal Cracking and Joint Separations · Publ. by: University of Texas at Austin. Center for Transportation Research (CTR).
5444-1 [CTR] ... FHWA/TX-08/0-5444-1
Full-text Link:
2007 ... Ian Hlavacek, Mike Vitek and Randy B. Machemehl · Transportation agencies around the nation find themselves pushing the envelope of innovation to keep up with congestion caused by exploding demand for limited roadway space. Managed lanes provide a mechanism for harnessing the potential of the current infrastructure.
5426-1 [CTR] ... 0-5426-1
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2007 ... Travis Waller · PowerPoint slide presentation. Ramp closure has potential for improving freeway operations during severe incidents. Three models discussed for this purpose: Incident severity model to see if ramp closure is warranted, Phase I model to learn which ramps to close, Phase II model for finding best closure
5422-P3 [CTR] ... Product 0-5422-P3
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2007 ... prepared by Travis Waller and Stephen Boyles · CDROM includes software documentation and NBDIS executable program. | "NBIDS is designed to predict incident duration (one common measure of severity) in real-time, using historical incident data with a minimum of calibration effort. Chapter 2 [documentation] guides the
5422-P2 [CTR] ... Product 0-5422-P2
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2007 ... Travis Waller, Stephen Boyles, David Fajardo and Ampol Karoonsoontawong · Non-recurring congestion accounts for a significant portion of freeway delay experienced by motorists in both rural and urban areas. Because access to these facilities is controlled by on ramps, these can play a major role in minimizing the impact that
5422-1 [CTR] ... 0-5422-1
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2006 ... Rob Harrison [and four others] · The Texas Department of Transportation (TxDOT) has partnered with metropolitan areas to support using Intelligent Transportation Systems (ITS) data in order to make real-time decisions and support performance measures for general transportation with facilities like TransGuide in San
5410-P3 [CTR] ... Product 0-5410-P3
Full-text Link:
2006 ... Robert Harrison [and four others] · This one-year scoping study examined the current status of highway Freight Performance Measure (FPM) implementation in the United States for possible implementation within the Texas Department of Transportation's (TxDOT) division of transportation, planning, and programming. A review of
5410-1 [CTR] ... 0-5410-1
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2006 ... Carlos H. Caldas [and four others] · In fiscal year 1999, the Federal Highway Administration (FHWA, 2003b) reported that the federal government spent nearly one billion dollars on right-of-way (R/W) acquisition. Because valuations and negotiations can have such a large impact on a project’s overall success, they are
5379-P2 [CTR] ... Product 0-5379-P2
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2006 ... Carlos H. Caldas [and five others] · Right-of-way (R/W) acquisition is an integral component of the overall planning and implementation of highway and transportation projects. This process has become more complex, expensive, time consuming and socially sensitive over the last few decades. The valuation of the parcels and the
5379-P1 [CTR] ... Product 0-5379-P1
Full-text Link:
2007 ... Carlos H. Caldas [and five others] · Right-of-way acquisition is an integral component of the overall planning and implementation of highway and transportation projects. This process has become more complex, expensive, time consuming, and socially sensitive over the last few decades. For this reason, the valuations of the
5379-1 [CTR] ... 0-5379-1
Full-text Link:
2006 ... Vishal Gossain, Karan Kapoor and Jorge A. Prozzi · The primary objective of the study was for the Center for Electromechanics, The University of Texas at Austin, to evaluate the Texas Mobile Load Simulator (TxMLS) equipment to recommend the most appropriate rehabilitation options. Within this framework, the research proposed
5372-1 [CTR] ... 0-5372-1
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2008 ... Sharon L. Wood [and seven others] · Prestressed concrete panels have been used by the bridge construction industry in the state of Texas for many years to increase construction speed and improve safety and economy. At expansion joints, cast-in-place concrete is used and requires temporary formwork and slows
5367-1 [CTR] ... FHWA/TX-09/0-5367-1
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[2012] ... by C.S. Williams, Dean Deschenes, Oguzhan Bayrak · This CD-ROM contains six PowerPoint presentations (.pptx files) produced during TxDOT research implementation project 5-5253-01. The combined presentations provide an introduction to strut-and-tie modeling (STM) (When and why and step-by-step design
5253-01-P2 [CTR] ... Product 5-5253-01-P2
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2012 ... Chris Williams, Dean Deschenes, Oguzhan Bayrak · A series of five detailed design examples feature the application of state-of-the-art strut-and-tie modeling (STM) design recommendations. This guidebook is intended to serve as a designer?s primary reference material in the application of STM to bridge components. The design
5253-01-1 [CTR] ... FHWA/TX-12/5-5253-01-1
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2009 ... Oguzhan Bayrak [and five others] · An experimental study was conducted in which 37 reinforced concrete deep beam specimens were tested. The specimens are some of the largest deep beams ever tested in the history of shear research. The data from the experimental program and from a database of 179 deep beam tests in the
5253-1 [CTR] ... 0-5253-1
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2010 ... Bradley J. Eck, J. Brandon Klenzendorf, Randall J. Charbeneau, and Michael E. Barrett · This report describes research into the water quality and hydraulics of the Permeable Friction Course (PFC). Water quality monitoring of 3 locations in the Austin area indicates up to a 90 percent reduction in pollutant discharges from PFC
5220-2 [CTR] ... FHWA/TX-11/0-5220-2
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2008 ... Christina Stanard, Remi Candaele, Randall Charbeneau and Michael Barrett · Permeable Friction Courses (PFC) are open-graded bituminous mixtures placed over an impervious base. The interconnected air voids allow rainwater to drain into the pavement thus providing a safer driving surface in wet weather and a filter for highway
5220-1 [CTR] ... 0-5220-1
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2008 ... Bedford Burgher [and four others] · Delayed ettringite formation (DEF) in concrete has been identified in recent as a significant cause of deterioration in some of the reinforced concrete infrastructure in Texas. This report is part of a research project, TxDOT project 5218, to investigate the possible long-term structural and durability
5218-1 [CTR] ... FHWA/TX-09/0-5218-1
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2007 ... Khali Persad, C. Michael Walton and Shahriyar Hussain · In this research product, industry standards for dedicated short range communications (DSRC) are reviewed, followed by an evaluation of costs and performance. Privacy concerns regarding collection and use of data on vehicle movements are examined in the context of
5217-P2 [CTR] ... Product 0-5217-P2
Full-text Link:
2007 ... Khali Persad, C. Michael Walton and Shahriyar Hussain · In this research product, tolling practices and technologies are presented. Likely developments and enhancements are reviewed, along with potential tie-ins to other Intelligent Transportation Systems (ITS) deployments. Ultimately, this research project will develop
5217-P1 [CTR] ... Product 0-5217-P1
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2007 ... Khali Persad [and four others] · Electronic vehicle identification (EVI) is already an important component of electronic toll collection. Universal EVI would provide the opportunity for transportation agencies to introduce ITS features such as in-vehicle information systems. In this project three areas were researched: (1) Current and
5217-1 [CTR] ... 0-5217-1
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2007 ... Jolanda Prozzi [and four others] · Highway funding constraints in recent years have resulted in the financing of new roads and the modernization of existing roads through investments that will be recovered by toll charges. In Texas, toll equity and Regional Mobility Authorities (RMAs) are voter-approved financial tools to leverage
5208-P2 [CTR] ... Product 0-5208-P2
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2007 ... Isabel C. Victoria [and four others] · In 2004 the Texas Department of Transportation (TxDOT) funded the Center for Transportation Research at The University of Texas at Austin to develop a methodology to evaluate the environmental justice (EJ) impacts of toll roads given four scenarios: (a) the construction of new toll road(s), (b)
5208-2 [CTR] ... 0-5208-2
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2007 ... Jolanda Prozzi [and four others] · In 2004 the Texas Department of Transportation (TxDOT) funded the Center for Transportation Research at The University of Texas at Austin to develop a methodology to evaluate the environmental justice (EJ) impacts of toll roads given four scenarios: (a) the construction of new toll road(s), (b)
5208-1 [CTR] ... 0-5208-1
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2009 ... Dr. Kevin J. Folliard [and four others] · This report summarizes a comprehensive joint-research project, funded by The Texas Department of Transportation (TxDOT) and performed by researchers at The University of Texas at Austin and Cornell University. This three-volume report is perhaps the most complete study to date on this
5207-1 [CTR] ... 0-5207-1
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2007 ... Jorge G. Zornberg, Stephen G. Wright and Jennifer E. Aguettant · Previous research has shown that cyclic wetting and drying can reduce the shear strength of compacted highly plastic clays to the fully softened shear strength. Consolidated-undrained triaxial testing procedures were used to determine the fully softened shear
5202-3 [CTR] ... 0-5202-3
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2007 ... Jorge G. Zornberg and Jeffrey Kuhn · A study was conducted to determine field suction values as well as the effect of cracking on the hydraulic properties of compacted highly plastic clays. This investigation consisted of an experimental program involving a series of instrumented soil column tests on highly plastic clay prepared under
5202-2 [CTR] ... 0-5202-2
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2007 ... Jorge G. Zornberg, Jeffrey Kuhn and Stephen Wright · Moisture infiltration into highway embankments constructed by the Texas Department of Transportation (TxDOT) using high Plasticity Index (PI) clays results in changes in shear strength and in flow pattern that leads to recurrent slope failures. In addition, soil cracking over
5202-1 [CTR] ... 0-5202-1
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