2009 ... Jolanda Prozzi, Cesar Martinez, and Rachel Niven · Excel database (21 spreadsheets) of NAFTA Commodity and Traffic Flow Data between the U.S., Canada, and Mexico · CONTENTS: Exports & Imports by NAICS Commodities, by District -- Monthly Port-level Exports, by port -- Exports & Imports by NAICS
5985-P2 [CTR] ... Product 0-5985-P2
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2009 ... Jolanda Prozzi [and five others] · Contact list for CTR 5985-P2 · Publ. by: University of Texas at Austin. Center for Transportation Research (CTR).
5985-P1 [CTR] ... Product 0-5985-P1
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2009 ... Lisa Loftus-Otway [and five others] · This research examined the legal, financial, institutional and policy processes that Mexico uses to plan, finance, construct, and implement its transportation network. It documents through twelve case studies the state of the practice in planning, financing, conducting traffic and revenue studies,
5985-1 [CTR] ... FHWA/TX-10/0-5985-1
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[2012] ... by Dr. Ronald Matthews [and eight others] · This report and its appendices summarize the findings of a 2-year extension to the TxDOT-sponsored study 0-5974 entitled “Estimating Texas Motor Vehicle Costs” undertaken by a Center for Transportation Research (CTR) team of mechanical engineers and economists at The University of
5974-2 [CTR] ... FHWA/TX-12/0-5974-2
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2009 ... Dana Welter [and four others] · A specific Vcost model was developed for Texas conditions based on a sophisticated fuel model for light duty vehicles, several excellent sources of secondary vehicle cost data, and the ability to measure heavy truck fuel consumption through both experimental and survey work. The basic model was
5974-1 [CTR] ... FHWA/TX-10/0-5974-1
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2010 ... Robert Harrison [and four others] · This report describes the major trends in intermodal shipping that are impacting Texas intermodal trade corridors. Key supply and demand forces that underpin intermodal service and routing options are provided. Intermodal development from a technological and shipping industry perspective is
5973-2 [CTR] ... FHWA/TX-10/0-5973-2
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2009 ... S. Travis Waller · Traffic congestion is an increasing problem in the nation’s urban areas, leading to personal inconvenience, increased pollution, hampered economic productivity, and reduced quality of life. While traffic congestion tends to continuously increase, growth in transportation infrastructure is limited by financial and
5913-P2 [CTR] ... Product 0-5913-P2
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2009 ... Erin Ferguson [and three others] · The purpose of this handbook is to provide guidance in determining whether or not speed harmonization and peak period shoulder is feasible for a given site or set of sites. The content of this handbook is based on the analysis conducted for this project. Additional information regarding the topics
5913-P1 [CTR] ... Product 0-5913-P1
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2009 ... S. Travis Waller [and four others] · Traffic congestion is an increasing problem in the nation's urban areas, leading to personal inconvenience, increased pollution, hampered economic productivity, and reduced quality of life. While traffic congestion tends to continuously increase, growth in transportation infrastructure is limited by
5913-1 [CTR] ... FHWA/TX-10/0-5913-1
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2009 ... Michael C. Walton [and five others] · Applying Intelligent Transportation Systems (ITS) to arterial systems allows TxDOT to significantly enhance transportation system operation efficiency and improve traffic mobility. However, no guidelines are available to assist TxDOT staff in selecting the most beneficial arterial ITS elements and
5865-1 [CTR] ... FHWA/TX-10/0-5865-1
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2012 ... by Andre Smit, Jorge A. Prozzi · "A product of this research study was a database comprising permeable friction course (PFC) projects evaluated as part of the study. The database includes project information as well as material and specific test data collected during the study. This document serves as a data dictionary for the
5836-P1 v.1 [CTR] ... Product 0-5836-P1
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2013 ... Catherine Hovell [and five others] · The Texas U-Beam standard designs were released in the 1990’s and have been used increasingly in bridges across the state since. While prototypes of the 54-in. deep prestressed concrete beam were built during the design phase, no full-scale load tests were performed. This study of the U-
5831-2 [CTR] ... FHWA/TX-13/0-5831-2
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2008 ... Moon Won, Soojun Ha and Chul Suh · Most research studies in the portland cement concrete (PCC) pavement area focused on addressing distresses related to pavement structure itself. As a result, the design and construction of other structural elements of the concrete curb and curb and gutter (CCCG) system have been
5830-1 [CTR] ... FHWA/TX-09/0-5830-1
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2008 ... Fulvio Tonon, Anay P. Raibagkar and Heejung Youn · This research addressed two key issues: | 1) Will verification cores holes fill during concrete backfilling? If so, what are the mechanical properties of the filling material? In dry conditions, verification core holes always completely fill with concrete whose compressive strength
5825-1 [CTR] ... FHWA/TX-09/ 0-5825-1
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2009 ... David A. Varathungarajan, Scott M. Garfield and Stephen G. Wright · TxDOT frequently uses Texas Cone Penetrometer (TCP) blow counts to estimate undrained shear strength. However, the current correlations between TCP resistance and undrained shear strength have been developed primarily for significantly stronger soils than are
5824-2 [CTR] ... FHWA/TX-09/ 0-5824-2
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2009 ... David A. Varathungarajan, Scott M. Garfield and Stephen G. Wright · The objective of this project was to develop an improved correlation between Texas Cone Penetrometer (TCP) blow count and undrained shear strength for soft, clay soils in the upper approximately 30 feet of the ground. Subsurface explorations were carried out by
5824-1 [CTR] ... FHWA/TX-09/ 0-5824-1
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2012 ... Jorge G. Zornberg, Nathan Thompson · Geotextiles, one among the different geosynthetic products, can be used for a number of functions or applications in pavement design. The benefits of using geotextiles in pavements and other transportation applications have triggered a proliferation of products. While this abundance of
5812-1 [CTR] ... FHWA/TX-10/0-5812-1
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2008 ... Cindy Menches, Carlos Caldas and James T. O'Connor · The CDROM includes a PowerPoint presentation and PDF containing supporting material · Publ. by: University of Texas at Austin. Center for Transportation Research (CTR).
5799-P2 [CTR] ... Product 0-5799-P2
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2009 ... Cindy Menches [and three others] · This guide book is divided into three chapters. Chapter 1 presents the project’s background, purpose, methodology, and summary of findings. Chapter 2 presents the recommended guidelines for successful implementation of the workload reduction strategies throughout TxDOT. Each guideline
5799-P1 [CTR] ... Product 0-5799-P1
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2008 ... Cindy L. Menches [and three others] · State departments of transportation (DOTs) have seen significant funding increases throughout the past decade. The additional funding has also brought about an increase in the construction inspection and testing workload, but the DOTs have not seen a sufficient increase in personnel to
5799-1 [CTR] ... FHWA/TX-09/0-5799-1
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2008 ... Maria Burke [and seven others] · This item is a bound copy of the PowerPoint Presentation. | On-street motor vehicle parking raises the level of danger for cyclists sharing roadways and motorists. Cyclists face an increased risk of collision with motorists entering or exiting a parking space, as well as vehicle doors suddenly
5755 PowerPoint [CTR] ... Product 0-5755 Presentation
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2009 ... Kristen Torrance [and seven others] · Because of the serious societal, environmental, economic, and public health problems associated with motorized transportation, there is increased interest in encouraging non-motorized modes of travel. The current study contributes toward this objective in two ways. First, it evaluates the
5755-1/P1 [CTR] ... Report 0-5755-1; Product 0-5755-P1
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2008 ... Bugao Xu · The CrackScope system is an automated pavement crack rating system consisting of a digital line scan camera, laser-line illuminator, and proprietary crack detection and classification software. CrackScope is able to perform real-time pavement inspection with 100% distance coverage at travel velocities from 3 to 70 mph.
5708-P4 [CTR] ... Product 0-5708-P4
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2008 ... Bugao Xu [and three others] · Report to describe the improvements made in hardware and software for pavement cracking detections, and the field test results that show the repeatability, accuracy of the data. · Publ. by: University of Texas at Austin. Center for Transportation Research (CTR).
5708-2 [CTR] ... FHWA/TX-09/0-5708-2
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2007 ... Bugao Xu, Xun Yao and Ming Yao · Technical Report —Design of CrackScope (VCrack) and Computer Algorithms for Classifying Concrete Pavement Distress. This report describes two major tasks accomplished for project 0-5807 in FY07. Report to describe characteristics of the CrackScope (VCrack) system, and distress
5708-1 [CTR] ... FHWA/TX-08/0-5708-1
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2010 ... Seongyeong Yang [and four others] · Economical constraints on the design of bridges usually necessitate the use of as few girders as possible across the bridge width. The girders are typically uniformly spaced transversely with the deck extending past the fascia girders, thereby resulting in an overhang. While designers
5706-1 [CTR] ... FHWA/TX-10/0-5706-1
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2010 ... Craig Quadrato [and six others] · This report documents a research investigation on connection details and bracing layouts for stability bracing of steel bridges with skewed supports. Cross-frames and diaphragms play an important role in stabilizing steel girders, particularly during construction. The commonly used bent plate
5701-1 [CTR] ... FHWA/TX-11/0-5701-1
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2008 ... S. Travis Waller [and nine others] · Vast quantities of transportation data are automatically recorded by intelligent transportation infrastructure, such as inductive loop detectors, video cameras, and side-fire radar devices. Such devices are typically deployed by traffic management centers (TMCs), and the data used for
5686-1 [CTR] ... FHWA/TX-09/0-5686-1
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2007 ... Robert Harrison [and five others] · The following report chronicles the first year's findings of project 0-5684. The report characterizes Texas drayage activity while focusing principally on activity occurring at the Port of Houston Barbours Cut Container Terminal, the UP and BNSF rail yards located in Houston, and the border Ports of
5684-2 [CTR] ... 0-5684-2
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2009 ... Rob Harrison [and five others] · This report examines Texas dray operations of interest to TxDOT planners. Chapter 1 provides background to the study and summarizes an earlier study report. Chapter 2 reports on a large drayage driver survey conducted at the Union Pacific Englewood intermodal terminal in Houston. Chapter
5684-1 [CTR] ... 0-5684-1
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2009 ... Randy Machemehl, Hongchao Liu and Ruey Long Kelvin Cheu · Many corridors in the Texas State highway system are facing increasing congestion while having severe right-of-way limitations. The best form of congestion relief may not be additional highway lanes and/or grade separations. The best solution may be the introduction of a
5668-1/P1 [CTR] ... Report 0-5668-1; Product 0-5668-P1
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2010 ... by Kara Kockelman, Binny Paul, Brenda Zhou · The CD-ROM contains the GUI Code for G-LUM and the Matlab Code with Austin, San Antonio, and Waco datasets. · Publ. by: University of Texas at Austin. Center for Transportation Research (CTR).
5667-01-P2 [CTR] ... Product 5-5667-01-P2
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2010 ... Dr. Kara Kockelman [and six others] · CONTENTS: "Documentation for Use of the Gravity-Based Land-Use Model (G-LUM)" -- Appendix A "Model Description (RESLOC; EMPLOC; LUDENSITY) -- Appendix B "Application to Austin Region" · Performed in cooperation with the Texas Department of Transportation and the Federal
5667-01-P1 [CTR] ... Product 5-5667-01-P1
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2010 ... Dr. Kara Kockelman [and five others] · This report consists of two parts. The first summarizes key details of the Suitability Analysis (SA) model, while the second illustrates the implementation details of the Gravity Land-Use Model (G-LUM). Both modeling approaches have been applied to the Austin region of Texas, but for different
5667-01-1 [CTR] ... FHWA/TX-11/5-5667-01-1
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2008 ... Kara Kockelman [and six others] · This work provides integrated transportation land use modeling guidance to practitioners in Texas regions of all sizes. The research team synthesized existing land use modeling experiences from MPOs across the country, examined the compatibility of TELUM's and UrbanSim's requirements
5667-1 [CTR] ... FHWA/TX-09/ 0-5667-1
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2005 ... Robert E. Hebner [and ten others] · This strategic plan defines a path for TxDOT to facilitate the introduction of hydrogen as a fuel in Texas. The plan responds, not only to the legislative requirement, but also to the mission of TxDOT to provide for the safe, efficient, and effective movement of people and goods. The key
5590-P1 [CTR] ... Product 5590-P1
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2006 ... Robert Hebner · The TxDOT Hydrogen Vehicles and Fueling Stations Strategic Panel investigated the situation background (including TxDOT, state of Texas, and national), the state of technology, and implementation drivers, and subsequently provided a near-term plan with a portfolio of medium- to long-term implementation
5590-1 [CTR] ... 0-5590-1
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2010 ... Jason Stith [and five others] · The purpose of this set of guidelines is to summarize recommendations from work completed as part of the Texas Department of Transportation (TxDOT) Research Project 0-5574 entitled “Curved Plate Girder Design for Safe and Economic Construction.” The research included field tests, three-
5574-P1 [CTR] ... Product 0-5574-P1
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2012 ... [Todd Helwig, University of Texas at Austin] · This software product was developed and is maintained by the University of Texas at Austin. UTCGAT is a suite of software tools for the analysis of curved girders. The suite consists of UT Bridge and UT Lift. UT Bridge is a 3-dimensional finite element program for the analysis of curved
5574-01-P2 [CTR] ... Product 5-5574-01-P2
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2010 ... by Jason Stith [and four others] · The purpose of this spreadsheet is to provide a tool and give information to an engineer when deciding the safety of lifting a horizontally curved steel I-girder with one crane and two lift clamps. The spreadsheet has been developed to indicate the necessary inputs and highlight the calculated results.
5574-01-P1 [CTR] ... Product 5-5574-01-P1
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2010 ... Jason Stith [and six others] · Project 0-5574 “Curved Plate Girder Design for Safe and Economical Construction,” resulted in the development of two design tools, UT Lift and UT Bridge. UT Lift is a spreadsheet-based program for analyzing steel girders during lifting while UT Bridge is a three-dimensional finite element
5574-01-1 [CTR] ... FHWA/TX-11/5-5574-01-1
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2010 ... Jason Stith [and eight others] · This report summarizes the methods, results, and recommendations from a research investigation on the behavior of horizontally curved girders during construction. The primary focus of this study is the behavior during early stages of construction when little or no bracing is provided. Girder behavior
5574-1 [CTR] ... FHWA/TX-10/0-5574-1
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2006 ... Maria Juenger, Moon Won and Andre Edson · The substitution of a portion of cement in concrete with supplementary cementing materials (SCM) frequently results in delayed setting and low early strength. When SCM-containing concrete is placed during cold weather and/or contains certain chemical admixtures, set time and
5550-P1 [CTR] ... Product 0-5550-P1
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2008 ... Maria Juenger [and four others] · The substitution of a portion of cement in concrete with supplementary cementing materials (SCM) frequently results in delayed setting and low early strength. When SCM-containing concrete is placed during cold weather and/or contains certain chemical admixtures, these problems can intensify
5550-1 [CTR] ... 0-5550-1
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2009 ... Seongcheol Choi [and three others] · The purpose of this study is to identify the mechanism of horizontal cracking in continuously reinforced concrete pavement (CRCP). To this end, a numerical model to predict the risk of horizontal cracking in CRCP was developed. Material properties and steel design were considered in the numerical
5549-2 [CTR] ... 0-5549-2
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2008 ... Seongcheol Choi and Moon Won · Until recently, full-depth punchout was considered the only structural distress in continuously reinforced concrete pavement (CRCP). However, over the last few years, during punchout repair projects, it was discovered that CRCP distresses identified as full-depth punchout were actually caused by
5549-1 [CTR] ... FHWA/TX-08/0-5549-1
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2008 ... Lisa Loftus-Otway [and three others] · This guidebook has been divided into two main sections for ease of use. Section one covers corridor protection strategies in general and provides a review of practices that are used around the U.S as well as case study examples and costs and links to reports, websites, and legislation, where
5546-P1 [CTR] ... Product 0-5546-P1
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2008 ... C. Michael Walton [and three others] · Rail Corridor preservation and planning for the purpose of reducing or restricting incompatible development is an area of growing importance. This report provides an overview regarding encroachment and the elements that contribute to potentially incompatible development along rail
5546-1/P1 [CTR] ... Report 0-5546-1; Product 0-5546-P1
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2007 ... Robert Harrison, Nathan Hutson and Vana Prasad · The U.S. economy has undergone profound changes in the twenty years ending 2006 as real Gross Domestic Product grew from $4.2 to $13.2 trillion. This not only altered the composition and size of its business sector but also the role the nation now plays in the global economy. It is
5538-P2 [CTR] ... Product 0-5538-P2
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2008 ... Peter Siegemund [and four others] · When policymakers make public investments, they are frequently interested in the economic impacts associated with their actions. Stakeholders are usually interested in a policy’s economic impact. Common ways of measuring economic impact are the quantity of jobs, sales, and tax receipts
5538-P1 [CTR] ... Product 0-5538-P1
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2008 ... Peter Siegesmund [and four others] · This study undertook an economic impact exercise for all Texas ports, updated a similar study done a decade earlier, and so assisted TxDOT with incorporating the most recent marine port impacts into their state transportation planning. The study was awarded to a joint CTR-TTI team but
5538-1 [CTR] ... FHWA/TX-09/0-5538-1
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2008 ... Matt Hall, Clark Kibler and Ron Matthews · Following the recommendations of Project 0-4576, the Texas Department of Transportation (TxDOT) began using an ultra-low sulfur diesel fuel, Texas Low Emission Diesel (TXLED) in all of its diesel engines in the fall of 2003. No problems were encountered with any of these engines
5532-P3 [CTR] ... Product 0-5532-P3
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2007 ... Ron Matthews, Matt Hall, John Hedrick and Clark Kibler · The research team found that the GFO engine failures were the result of three factors: 1) the poor ring pack design of these engines, which results in a high oil consumption rate, 2) the high ash content of the re-refined oil that was used in the ferries, and 3) the decreased
5532-1 [CTR] ... 0-5532-1
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2012 ... Jorge G. Zornberg, Brian J. Freilich, Carlos Guzman · This implementation project validates field test methods for checking the conformity of tire bales used in transportation applications. It also provides guidelines for instrumentation of installations involving tire bales. Specific components include field evaluation of tire bale
5517-01-1 [CTR] ... FHWA/TX-10/5-5517-01-1
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2009 ... Brian Freilich and Jorge G. Zornberg · Scrap tire bales are typically treated as discrete elements that consist of approximately one hundred (100) scrap tires compressed into a 4.5 foot by 5 foot by 2.5 foot block. The advantage of baling tires is that a volume reduction of approximately ten (10) is achieved, and handling bales is
5517-1 [CTR] ... FHWA/TX-10/0-5517-1
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2008 ... Jorge A. Prozzi [and three others] · The TxFlex spreadsheet contains a sheet listing "Entities," a sheet listing "Attributes" for each entity, and a sheet with an E-R diagram. · CONTENTS: "TxFlex Data Dictionary" (Excel spreadsheet) -- "TxFlex DB" (Access Database) · Publ. by: University of Texas at Austin. Center for
5513-P1 [CTR] ... Product 0-5513-P1
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2010 ... Ambarish Banerjee [and three others] · The goal of this research project was the development of the Texas Flexible Pavement Database (TFPD) to serve as a reference database comprising design, construction, structural and performance data for selected roadway sections in Texas. The database was designed as a project-
5513-2 [CTR] ... FHWA/TX-10/0-5513-2
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2008 ... Jorge A. Prozzi, Jose Pablo Aguiar and Feng Hong · Comprehensive and reliable databases are essential for the development, validation, and calibration of any pavement design and rehabilitation system. These databases should include material properties, pavement structural characteristics, highway traffic characteristics,
5513-1 [CTR] ... FHWA/TX-09/0-5513-1
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2008 ... Stephen G. Wright, Kuo-Hsin Yang and Jorge G. Zornberg · The Texas Department of Transportation (TxDOT) is experiencing wider use of Mechanically Stabilized Earth (MSE) Walls placed adjacent to an existing stable wall. In numerous cases, the space (width) available for the new wall is less than the width established in
5506-2 [CTR] ... FHWA/TX-08/0-5506-2
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2007 ... Kenneth T. Kniss, Stephen G. Wright, Kuo-Hsin Yang and Jorge Zornberg · Widening of existing highways often results in new mechanically stabilized earth (MSE) walls being placed in front of existing stable walls. The design of these walls is unique because limited right-of-way often forces the length of the reinforcing strips to be
5506-1 [CTR] ... 0-5506-1
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