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The Medallion, Volume 50, Number 3, Summer 2012
Quarterly publication of the Texas Historical Commission containing articles about historic sites, events, and conservation in Texas, as well as organizational and related news.
Date:
Summer 2012
Creator:
Texas Historical Commission
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
The Medallion, Volume 50, Number 2, Spring 2012
Quarterly publication of the Texas Historical Commission containing articles about historic sites, events, and conservation in Texas, as well as organizational and related news.
Date:
Spring 2012
Creator:
Texas Historical Commission
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
The Medallion, Volume 50, Number 1, Winter 2012
Quarterly publication of the Texas Historical Commission containing articles about historic sites, events, and conservation in Texas, as well as organizational and related news.
Date:
Winter 2012
Creator:
Texas Historical Commission
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Shear strengthening of reinforced and prestressed concrete beams using Carbon Fiber Reinforced Polymer (CFRP) sheets and anchors
This report presents experimental results, installation procedures for CFRP sheets and anchors, specifications for fabrication and installation of CFRP anchors, and anchored CFRP shear design guidelines.
Date:
February 2012
Creator:
Kim, Yungon.
Object Type:
Report
System:
The Portal to Texas History
Validation of field test methods for use of tire bales
Report discussing an implementation project that validates field test methods for checking he conformity of tire bales used in transportation applications.
Date:
February 2012
Creator:
Zornber, Jorge C.; Freilich, Brian J. & Guzman, Carlos
Object Type:
Report
System:
The Portal to Texas History
Application guide and specifications for geotextiles in roadway applications
Abstract: "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 new products has led to reduction in costs, it has also made it difficult for TxDOT personnel to choose appropriate products based on their engineering properties. Consequently, this report provides the basis for (i) guidelines for proper use and selection of geotextiles in pavements, (ii) material specifications for geotextiles in pavement applications, and (iii) draft construction specifications."
Date:
February 2012
Creator:
Zornberg, Jorge G. & Thompson, Nathan
Object Type:
Report
System:
The Portal to Texas History
Implementation of the Soil Compactor Analyzer Into Test Method TEX-113-E : Technical Report
This report describes a study showing that the Soil Compactor Analyzer(SCA) enables excellent precision precision of total statistics of test method Tex-113-E.
Date:
April 2012
Creator:
Sebesta, Stephen & Taylor, Ross
Object Type:
Report
System:
The Portal to Texas History
Unknown Foundation Determination for Scour
This report describes a project to develop a global approach that would reduce the level of uncertainty associated with unknown foundations.
Date:
April 2012
Creator:
Briaud, Jean-Louis; Medina-Cetina, Zenon; Hurlebaus, Stefan; Everett, Mark; Tucker, Stacey; Yousefpour, Negin et al.
Object Type:
Report
System:
The Portal to Texas History
Alternative Methods of Flexible Base Compaction Acceptance
"This report summarizes the concerns expressed with the current Texas Department of Transportation(TxDOT) methods, presents approaches some TxDOT districts have taken to overcome problems, and summarizes the current status of other agencies' efforts at mechanistic based acceptance for flexible base. Also this report presents results and findings from a full-scale compaction experiment."
Date:
May 2012
Creator:
Sebesta, Stephen; Taylor, Ross & Frazier, James
Object Type:
Report
System:
The Portal to Texas History
Community Design and the Incidence of Crashes Involving Pedestrians and Motorists Aged 75 and Older
"This report studies a series of negative binomial regression models to understand how urban form may affect the incidence of total and killed-or-severely-injured (KSI) crashes involving older drivers and pedestrians."
Date:
April 2012
Creator:
Dumbaugh, Eric; Zhang, Yi & Li, Wenhao
Object Type:
Report
System:
The Portal to Texas History
Development of an Early-Stage Toll Revenue Estimation Model
This report contains a standalone, spreadsheet-based model that prepares early-stage traffic and toll revenue estimates.
Date:
May 2012
Creator:
Beaty, Curtis & Lieu, Henry
Object Type:
Report
System:
The Portal to Texas History
Performance Measures for Sustainable Freight Movement
This report addresses the issues of freight sustainability at the transportation corridor level.
Date:
February 2012
Creator:
Farzaneh, Reza; Ramani, Tara; Krishnan, Anupama & Zietsman, Josias
Object Type:
Report
System:
The Portal to Texas History
Positive Feedback: Exploring Current Approaches in Iterative Travel Demand Model Implementation
This report looked at the current Texas Department of Transportation Travel Demand Model (TxDOT TDM) and found that they do not include any impedance or accessibility measures in the trip generation step and found that the best approach is to feed back the output from the traffic assignment step to the trip distribution step.
Date:
January 2012
Creator:
Reeder, Phillip; Bhat, Chandra & Hall, Kevin
Object Type:
Report
System:
The Portal to Texas History
Research and recommendations for a statewide sign retroreflectivity maintenance program
"This report evaluated Texas Department of Transportation's (TxDOT) current sign retroreflectivity maintenance practices, assessed their effectiveness, and recommended statewide sign retroreflectivity maintenance practices that could be easily and effectively implemented to ensure that TxDOT would be in compliance with the new Manual on Uniform Traffic Control Devices (MUTCD) language related to minimum sign retroreflectivity."
Date:
April 2012
Creator:
Carlson, Paul J.; Higgins, Laura L. & Re, Jonathan M.
Object Type:
Report
System:
The Portal to Texas History
The TCEQ Border Initiative
This document describes how the Texas Commission on Environmental Quality (TCEQ) works with local, state, and federal stakeholders to increase cooperation and exchange knowledge, experience, and technology related to the environment. The TCEQ mission is to maximize the efforts to improve the environment of the U.S. Mexico border region.
Date:
April 2012
Creator:
Texas Commission on Environmental Quality
Object Type:
Pamphlet
System:
The Portal to Texas History
Evaluation of traffic control devices : year 3
Report summarizing the research activities that were conducted between September 2010 and August 2011. The five primary activities were evaluating nighttime visibility along rural highways with bright signs, continuing the evaluation of lead-free thermoplastic pavement markings, evaluating contrast pavement marking layouts, continuing the evaluation of accelerated pavement marking test decks, and providing district support for hurricane evacuation routing.
Date:
March 2012
Creator:
Carlson, Paul J.; Pike, Adam M.; Miles, Jeff D.; Ullman, Brooke R. & Borchardt, Darrel W.
Object Type:
Report
System:
The Portal to Texas History
Geosynthetic-Reinforced Unbound Base Courses: Quantification of the Reinforcement Benefits
Report on the testing involving a modified pullout device for the characterization of the confined stiffness in geosynthetic reinforcements.
Date:
February 2012
Creator:
Zornberg, Jorge G.; Ferreira, J. A. Z.; Gupta, R.; Joshi, R. V. & Roodi, G. H.
Object Type:
Report
System:
The Portal to Texas History
Strut-and-Tie Model Design Examples for Bridges
A series of five detailed design examples feature the application of state-of-the-art strut-and-tie modeling (STM) design recommendations. Design components include: Five-Column Bent Cap of a Skewed Bridge, Cantilever Bent Cap, Inverted-T Straddle Bent Cap (Moment Frame), Inverted-T Straddle Bent Cap (Simply Supported), and Drilled-Shaft Footing.
Date:
June 2012
Creator:
Williams, Chris; Deschenes, Dean & Bayrak, Oguzhan
Object Type:
Report
System:
The Portal to Texas History
RTI Special Studies for TxDOT Administration in FY 2011
Abstract: This research project was established by TxDOT's Research and Technology Implementation Office to address special studies required by the department's Administration during FY 2011. Three short-term, quick-turnaround tasks were completed and are documented.
Date:
June 2012
Creator:
Persad, Khali; Zhang, Zhanmin; Qazi, Abds; Harrison, Robert; Trevino, Manuel & Khwaja, Nabeel
Object Type:
Report
System:
The Portal to Texas History
Identification of priority rail projects for Texas: initial methodology/user manual and guidebook
"This project developed a system of evaluative tools for the Texas Department of Transportation (TxDOT) to prioritize its investments in rail-related projects on a statewide basis. This work is meant to ensure that the limited available funding for rail projects is applied in the most beneficial and efficient manner and is focused upon addressing TxDOT's strategic goals. From the findings, researches recommend a transparent methodology for evaluating proposed rail projects and establishing an initial process through which rail-related investments can periodically be re-evaluated."
Date:
February 2012
Creator:
Morgan, Curtis Alan
Object Type:
Report
System:
The Portal to Texas History
Pavement repair strategies for selected distresses in FM roadways
"Expansive soil is considered one of the most common causes of pavement distresses in FM roadways. Depending upon the moisture level, expansive soils will experience changes in volume due to moisture fluctuations from seasonal variations. The objective of this research was to evaluate existing repair projects on selected FM roadways. Those roadways experienced failures in the form of fatigue and rutting in the wheel path, and longitudinal (faulted) cracking including edge cracking. The causes of those failures were mainly linked to high PI expansive soil and narrow pavement" (from abstract).
Date:
June 2012
Creator:
Dessouky, Samer; Oh, Jeong Ho; Yang, Mijia; Ilias, Mohammad; Lee, Sang Ick; Freeman, Tom et al.
Object Type:
Report
System:
The Portal to Texas History
Performance of lap splices in large-scale column specimens affectedby ASR and/or DEF
"This research program conducted a large experimental program, which consisted of the design, construction, curing, deterioration, and structural load testing of 16 large-scale column specimens with a critical lap splice region, and then compared and calibrated models developed in the analytical program with the experimental behavior. Specimens were carefully instrumented both internally and externally to monitor the strain behavior of the concrete and reinforcing steel from specimen construction, curing, deterioration, and final structural load testing."
Date:
June 2012
Creator:
Bracci, Joseph M.; Gardoni, Paolo; Eck, Kathleen M. & Trejo, David
Object Type:
Report
System:
The Portal to Texas History
Compilation of Results of Aquifer Tests in Texas
"The mission of the Texas Water Development Board's (TWDB) Groundwater Resources Division is to collect, interpret, and provide accurate, objective information on the groundwater resources of Texas. In support of this mission, the TWDB has undertaken a long-term process of mapping and characterizing the aquifers of Texas."
Date:
April 2012
Creator:
Wuerch, David Robert & Christian, Brent
Object Type:
Report
System:
The Portal to Texas History
Pecos Valley Aquifer, West Texas: Structure and Brackish Groundwater
"The pilot study has helped lay the foundation for future Brackish Resources Aquifer Characterization System projects by developing a database management system in which variety of data can be stored and processed."
Date:
June 2012
Creator:
Wise, Matthew R.; Kalaswad, Sanjeev & Meyer, John E.
Object Type:
Report
System:
The Portal to Texas History