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Non-vital advance rail preemption of signalized intersections near highway-rail grade crossings

Description: Technical report examining two strategies were investigated to ensure pedestrian clearance time in intersections near highway-rail grade crossings. The first utilizes a lower-level preemption sequence to guarantee full pedestrian clearance to a terminating phase before the traffic signal starts the preemption sequence. The second strategy uses the pedestrian-omit feature to prevent the controller from activating the pedestrian interval if there is not sufficient time in advance of the start of … more
Date: June 2007
Creator: Balke, Kevin N.; Engelbrecht, Roelof Johannes & Ruback, Leonard G.
Partner: UNT Libraries Government Documents Department

Improving stop line detection using video imaging detectors

Description: Report discussing research conducted on video imaging vehicle detection system [VIVDS] products which resulted in the development of a VIVDS test protocol and performance measures that transportation agencies can use to uniformly evaluate VIVDS products.
Date: August 2009
Creator: Middleton, Daniel R.; Longmire, Ryan; Charar, Hassan; Bullock, Darcy & Bonneson, James A.
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

Development of precast bridge deck overhang system: technical report

Description: "The testing and analyses documented in this report (0-6100-3) provides a new equation for determining the number of shear pockets required for the various shear connector/coupler systems evaluated in this research. This equation was used to determine the number of shear pockets required for the newer TxDOT girders."
Date: February 2010
Creator: Kim, Young Hoon & Trejo, David
Partner: UNT Libraries Government Documents Department

Landside freight access to airports : findings and case studies

Description: Report identifying the issues, and infrastructure needs concerning access to airports in Texas for both travel and freight shipping purposes and proposing solutions to the identified problems.
Date: August 2010
Creator: Frawley, William E.; Borowiec, Jefferey D.; Protopapa, Annie A.; Morgan, Curtis Alan & Warner, Jeffery E.
Partner: UNT Libraries Government Documents Department

Delivery of workshops on corridor management and preservation in Texas

Description: "This report summarizes the delivery and outcome of a series of workshops conducted at 23 Texas Department of Transportation (TxDOT) districts across the state on corridor management and preservation in Texas. The workshops served as follow-up implementation work for research project 0-5606, "Creating Partnerships with Local Communities to Manage and Preserve Corridors." The report provides an overview of the project and documents the dates, locations, and attendance of workshops implemented du… more
Date: September 2010
Creator: Bochner, Brian S. & Hard, Edwin N.
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

Estimated impacts of the 2010 census on the Texas transit funding formula

Description: Changes in the population and land area of urbanized areas in Texas will play a significant role in determining the allocation of public transportation funds to service providers in Texas after Census 2010. The purpose of this research report is to review the impacts of the changes in urbanized area population and non-urbanized (rural) population and land area for 2010 on the current Texas Transit Funding Formula for allocation of Federal Section 5311 and state rural and urban funds. This colla… more
Date: September 2010
Creator: Eschbach, Karl; Cline, Michael; Cherrington, Linda Kay; Edrington, Suzie; Ellis, Patricia & Kraus, Edgar
Partner: UNT Libraries Government Documents Department

Peer grouping and performance measurement to improve rural and urban transit in Texas

Description: "Rural and small urban transit systems in Texas will become even more important with predicted changes in population trends. Rural demographic trends indicate growth in the number of persons age 65 and over coupled with a decrease in population density. Small urban area trends indicate substantial population growth and broadened geographic boundaries, yet resources to provide rural and small urban transit are limited. Therefore, transit managers find it is increasingly important to maximize ser… more
Date: September 2010
Creator: Arndt, Jeffrey C.; Edrington, Suzie; Sandidge, Matthew; Quadrifoglio, Luca & Perkins, Judy
Partner: UNT Libraries Government Documents Department

Alternative methods for developing external travel survey data

Description: Report on research examining alternative methods for collecting data on external travel movements and evaluating the potential for synthesizing/modeling external travel in lieu of conducting external surveys. The report also provides recommendations to the Texas Department of Transportation on the most viable methods to estimate external travel movements for use in travel demand models in urban areas in Texas.
Date: October 2010
Creator: Farnsworth, Stephen; Talbot, Eric; Songchitruksa, Praprut; Reeder, Phillip & Pearson, David
Partner: UNT Libraries Government Documents Department

Incorporating sustainability into Texas Department of Transportation's transportation decision making : summary of work performed, methods used and results achieved

Description: "This report summarized the work performed in Fiscal Year (FY) 2009 and 2010 under TxDOT Implementation Project 5-5541-01-"Regional Workshops on Sustainability Enhancement Tool."
Date: October 2010
Creator: Zietsman, Josias; Eisele, William L. & Ramani, Tara L.
Partner: UNT Libraries Government Documents Department

Rapid Field Detection of Sulfate and Organic Content in Soils: Technical Report

Description: Report regarding efforts to identify a technique to map the sulfate content of soil over a large area to a depth of 3 to 4 feet. Two devices are noted: an electromagnetic device called EM-38 and a soil conductivity device called VERIS 315.
Date: October 2010
Creator: Harvey, Omar; Sebesta, Stephen & Harris, Pat
Partner: UNT Libraries Government Documents Department

Rural planning organizations, their role in transportation planning and project development in Texas : technical report

Description: Report containing research identifying and examining rural planning organizations, their structure and operation, and their role in transportation planning and programming.
Date: October 2010
Creator: Overman, John H.; Ellis, Patricia; Frawley, William; Taylor, Ryan; Geiselbrecht, Tina & Goodin, Ginger
Partner: UNT Libraries Government Documents Department

Studies to determine the effectiveness of longitudinal channelizing devices in work zones

Description: "This report describes the methodology and results of analyses performed to determine whether the following longitudinal channelizing device (LCD) applications improve the traffic safety and operations of work zones relative to the use of standard drums."
Date: October 2010
Creator: Finley, Melisa D.; Theiss, LuAnn; Trout, Nada D.; Miles, Jeffrey D. & Nelson, Alicia A.
Partner: UNT Libraries Government Documents Department

The Freight Shuttle System : advancing commercial readiness

Description: This report summarizes the results of research aimed at advancing the commercial readiness of a new hybrid mode of inter-modal freight transportation called the Freight Shuttle System (FSS).
Date: November 2010
Creator: Roop, Stephen S.; Ragab, Ayman H.; Olson, Leslie E.; Protopapa, Annie A.; Yager, Michael A.; Morgan, Curtis Alan et al.
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

Manual for Assessing Safety Hardware test 3-10 on 31-inch W-beam guardrail with standard offset blocks

Description: "The test reported herein corresponds to American Association of State Highway and Transportation Officials (AASHTO) Manual for Assessing Safety Hardware (MASH) test 3-10. This is primarily a severity test that assesses risk of injury to the vehicle occupants."
Date: November 2010
Creator: Abu-Odeh, Akram Y.; Menges, Wanda L. & Bligh, Roger P.
Partner: UNT Libraries Government Documents Department

Field Evaluation of Asphalt Mixture Skid Resistance and Its Relationship to Aggregate Characteristics

Description: Report documenting the findings from the research that was carried out as part of Phase II of Texas Department of Transportation Project 0-5627. The research included measurements and analysis of mechanical and physical properties of aggregates used in surface mixes in the state of Texas.
Date: December 2010
Creator: Masad, Eyad; Rezaei, Arash; Chowdhury, Arif & Freeman, Thomas J.
Partner: UNT Libraries Government Documents Department

Exploratory study : vehicle mileage fees in Texas

Description: This project evaluates Vehicle Mileage (VM) fees as a possible funding mechanism for meeting the State of Texas' long-term transportation needs. Researchers conducted listening sessions with the general public and stakeholders to gather input on the concept. Researchers also prepared a decision matrix that can aid policy makers in evaluating the various trade-offs in policy that will be encountered in vehicle mileage fee system development. This study identified both challenges and opportunitie… more
Date: January 2011
Creator: Baker, Richard & Goodin, Ginger
Partner: UNT Libraries Government Documents Department

Implementation of Transverse Variable Asphalt Rate seal coat practices in Texas

Description: An implementation project was performed to expand use of transversely varied asphalt rate (TVAR) seal coat practices in all districts. The project included nine regional workshops, continued field texture testing of test sites, provided one set of sand patch test equipment to each Texas Department of Transportation (TxDOT) district, and published 500 copies of the TVAR Field Guide for broad TxDOT distribution.
Date: January 2011
Creator: Krugler, Paul E. & Estakhri, Cindy K.
Partner: UNT Libraries Government Documents Department

Manual for Assessing Safety Hardware test 3-11 of the Texas Department of Transportation Portable Concrete Traffic Barriers with sign support assembly

Description: This report presents the details of the design developed for mounting the traffic control sign support on top a portable concrete traffic barrier (PCTB), description of the full scale crash test performed on the design, and an assessment and evaluation of the performance of the PCTB with the sign support mounted on top according to specifications of "Manual for Assessing Safety Hardware" (MASH). The PCTB mounted sign support assembly anchored to the top of the TxDOT Type 2 PCTB tested for this … more
Date: January 2011
Creator: Williams, William F. & Menges, Wanda L.
Partner: UNT Libraries Government Documents Department
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