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Evaluating the Impact of Overweight Load Routing on Buried Utility Facilities [Report 1]

Description: From abstract: This report focuses on the year one project objectives, which were (a) provide a review of technical design and engineering requirements for utility accommodation in Texas, (b) provide a preliminary assessment of potential impact of overweight loads on buried utilities, (c) provide a preliminary assessment of Utility Accommodation Rules (UAR) adequacy to deal with overweight loads on buried utilities, (d) provide preliminary recommendations for a business process for Texas Depart… more
Date: February 2011
Creator: Kraus, Edgar; Fernando, Emmanuel; Li, Yingfeng; Oh, Jeong Ho; Koncz, Nicholas & Quiroga, Cesar
Partner: UNT Libraries Government Documents Department

Identification of priority rail projects for Texas: initial methodology/user manual and guidebook

Description: "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 i… more
Date: February 2012
Creator: Morgan, Curtis Alan
Partner: UNT Libraries Government Documents Department

Development of a model performance-based sign sheeting specification based on the evaluation of nighttime traffic signs using legibility and eye-tracker data : data and analysis

Description: "This report presents data and technical analyses for Texas Department of Transportation Project 0-5235. This project focused on the evaluation of traffic sign sheeting performance in terms of meeting the nighttime driver needs. The goal was to develop a nighttime driver needs specification for traffic signs. Full information on the project is presented in Report 0-5235-1 Volume 1."
Date: September 2009
Creator: Carlson, Paul J.; Park, Eun Sug & Miles, Jeffrey D.
Partner: UNT Libraries Government Documents Department

Internal trip capture estimator for mixed-use developments

Description: Report describing a spreadsheet tool for estimating trip generation for mixed-use developments, single developments that include different types of land use.
Date: February 2010
Creator: Bochner, Brian S. & Sperry, Benjamin R.
Partner: UNT Libraries Government Documents Department

Highway safety design workshops

Description: Report on a series of workshops provided by the Texas Department of Transportation on the topic, "Incorporating Safety into the Highway Design Process." The report focuses on workshop content, attendance, and participation evaluation.
Date: November 2010
Creator: Bonneson, James A. & Pratt, Michael P.
Partner: UNT Libraries Government Documents Department

Applying the Systems Engineering Approach to Video Over IP Projects

Description: Abstract: In 2009, the Texas Transportation Institute produced for the Texas Department of Transportation a document called Video over IP Design Guidebook. This report summarized an implementation of that project in the form of a workshop. The workshop was developed and presented as a pilot in Austin in 2010 and taught an additional four times in 2011 in Fort Worth, Lubbock, Houston, and San Antonio.
Date: December 2011
Creator: Thomas, Gary B.
Partner: UNT Libraries Government Documents Department

Development of a model performance-based sign sheeting specification based on the evaluation of nighttime traffic signs using legibility and eye-tracker data

Description: "This report focused on the evaluation of traffic sign sheeting performance in terms of meeting the nighttime driver needs. Using the luminance requirements derived from the study and market-weighted headlamp flux matrices, the researchers developed an approach to sigh sheeting specification that is based on nighttime driver needs."
Date: September 2010
Creator: Carlson, Paul J.; Miles, Jeffrey D.; Park, Eun Sug; Young, Sarah; Chrysler, Susan & Clark, Jerremy
Partner: UNT Libraries Government Documents Department

Operational Performance Management of Priced Facilities

Description: "This study provides a framework in which operating decisions for priced facilities can be made and can guide the changes in operational strategies for a facility over time" (p. i).
Date: March 2011
Creator: Goodin, Ginger; Burris, Mark; Lomax, Timothy J.; Geiselbrecht, Tina & Brydia, Robert
Partner: UNT Libraries Government Documents Department

Development of guidelines for pedestrian safety treatments at signalized intersections

Description: "This document summarized the research conducted and the conclusions reached during the development of guidelines for pedestrian safety treatments at signalized intersections. The guidelines are focused on treatments that alleviate conflicts between left-turning vehicles and pedestrians."
Date: August 2011
Creator: Pratt, Michael P.; Songchitruksa, Praprut & Bonneson, James A.
Partner: UNT Libraries Government Documents Department

The Overlay Tester : A Sensitivity Study to Improve Repeatability and Minimize Variability in the Test Results

Description: "This report presents a comprehensive sensitivity evaluation of the critical steps of the Overlay Tester (OT) test procedure in an attempt to optimize the OT repeatability and minimize variability in the test results."
Date: February 2012
Creator: Walubita, Lubinda F.; Faruk, Abu N.; Das, Gautam; Tanvir, Hossain A.; Zhang, Jun & Scullion, Tom
Partner: UNT Libraries Government Documents Department

Development of a precast bridge deck overhang system

Description: This research investigated the overhang and shear capacity of a precast overhang system for potential use during the construction of bridges with precast overhang panels. The research was performed in three phases: the Phase 1 research including work specifically for the Rock Creek Bridge in Parker County, Texas; the Phase 2 research for general precast overhang panels, and; the Phase 3 research investigating the shear capacity. Grout material characteristics were also assessed for possible use… more
Date: February 2011
Creator: Trejo, David; Head, Monique H.; Mander, John; Mander, Thomas J.; Henley, Mathew; Scott, Reece et al.
Partner: UNT Libraries Government Documents Department

Unknown Foundation Determination for Scour

Description: 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.
Partner: UNT Libraries Government Documents Department

Performance comparison of various seal coat grades used in Texas

Description: This report documents research efforts to provide comparative quantitative performance information for various grades of seal coat aggregate available in the Texas Department of Transportation standard specifications. Length of service before replacement and level of noise generated at the tire-pavement interface were the primary focuses of the relative performance evaluations. The additional service life possible from seal coats with larger aggregate and higher asphalt application rates is com… more
Date: July 2012
Creator: Krugler, Paul E.; Wirth, John E.; Estakhri, Cindy K.; Freeman, Thomas J.; Wikander, John P. & Wimsatt, Andrew J.
Partner: UNT Libraries Government Documents Department

Alternative Methods of Flexible Base Compaction Acceptance

Description: "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
Partner: UNT Libraries Government Documents Department

Positive Feedback: Exploring Current Approaches in Iterative Travel Demand Model Implementation

Description: 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
Partner: UNT Libraries Government Documents Department

Prototype Design for a Predictive Model to Improve Evacuation Operations: Technical Report

Description: "This project focused primarily on the specific issue of developing a new technical tool to help TxDOT and other key operating agencies/stakeholders better predict when major elements of evacuation operations should be implemented."
Date: March 2011
Creator: Henk, Russell H.; Songchitruksa, Praprut; Venglar, Steven & Lim, Gino
Partner: UNT Libraries Government Documents Department

Treatments to reduce the frequency of freeway exit sign hits

Description: Report of a project to identify and evaluate methods that may reduce the number of sign hit by errant vehicles with field studies conducted near Corpus Christi, Texas.
Date: January 2011
Creator: Pesti, Geza; Oben-Boampong, Kwaku; Songchitruksa, Praprut & Theiss, LuAnn
Partner: UNT Libraries Government Documents Department

Development guidance for sign design standards

Description: "This two-year project was designed to provide TxDOT with comprehensive review and update of mounting details and standards for large and small sign supports, and to provide a mechanism for TxDOT to quickly and effectively evaluate and address high priority needs related to sign support systems."
Date: November 2011
Creator: Silvestri, Chiara; Arrington, Dusty R.; Bligh, Roger P. & Menges, Wanda L.
Partner: UNT Libraries Government Documents Department
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