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  Partner: UNT Libraries Government Documents Department
 Decade: 2010-2019
 Serial/Series Title: Technical report (Texas Transportation Institute)
Accommodating oversize and overweight loads: technical report

Accommodating oversize and overweight loads: technical report

Date: July 2012
Creator: Middleton, Daniel R.
Description: "In this report the research project resulted in a statewide map recommending primary and alternate Oversize/ overweight (OS/OW)route networks for the most common origins and destinations based on historical Motor Carrier Division data. Keeping strategic routes open for OS/OW loads and minimizing the number of reroutes along the way will reduce the impedance and unknowns in this critical segment of the motor carrier industry."
Contributing Partner: UNT Libraries Government Documents Department
Alternative methods for developing external travel survey data

Alternative methods for developing external travel survey data

Date: October 2010
Creator: Farnsworth, Stephen; Talbot, Eric; Songchitruksa, Praprut; Reeder, Phillip & Pearson, David
Description: The Texas Department of Transportation (TxDOT) has a comprehensive on-going travel survey program that supports the travel demand models being developed for transportation planning efforts in urban areas throughout Texas. One component of the survey program is the external travel survey. External travel surveys provide data on travel movements into, out of, and through urban areas. In recent years, there has been a heightened sensitivity to the methods used to collect external survey data as well as the type of data that is collected. This research examines alternative methods for collecting data on external travel movements and evaluates the potential for synthesizing/modeling external travel in lieu of conducting external surveys. The research will provide recommendations to TxDOT on the most viable methods to estimate external travel movements for use in travel demand models in urban areas in Texas.
Contributing Partner: UNT Libraries Government Documents Department
Alternative methods of flexible base compaction acceptance

Alternative methods of flexible base compaction acceptance

Date: May 2012
Creator: Sebesta, Stephen
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."
Contributing Partner: UNT Libraries Government Documents Department
Applying the systems engineering approach to video over IP projects

Applying the systems engineering approach to video over IP projects

Date: September 2011
Creator: Thomas, Gary B.
Description: "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."
Contributing Partner: UNT Libraries Government Documents Department
Benefits of public roadside safety rest areas in Texas :  technical report

Benefits of public roadside safety rest areas in Texas : technical report

Date: May 2011
Creator: Carson, Jodi L.; Pezoldt, Val J.; Koncz, Nicholas A., 1964- & Obeng-Boampong, Kwaku Oduro, 1977-
Description: Report regarding efforts to develop a benefit-cost analysis methodology for safety rest areas in Texas and to demonstrate its application in select corridors throughout the state. This project also considers approaches to developing rest areas that could reduce costs to the public.
Contributing Partner: UNT Libraries Government Documents Department
Characterization of exhaust emissions from heavy-duty diesel vehicles in the Houston-Galveston-Brazoria area

Characterization of exhaust emissions from heavy-duty diesel vehicles in the Houston-Galveston-Brazoria area

Date: October 2011
Creator: Johnson, Jeremy D.
Description: "For this study, a total of 30 heavy-duty diesel vehicles (HDDVs) were selected from City of Houston (COH) fleet based on opacity testing for HEs and random selection for non-HEs. With the selected 30 vehicles, driving and idling emission testing were performed to characterize their emissions with respect to vehicle classes, types (HE or non-HE), and model years."
Contributing Partner: UNT Libraries Government Documents Department
Collision loads on bridge piers, phase 2: report of guidelines for designing bridge piers and abutments for vehicle collisions

Collision loads on bridge piers, phase 2: report of guidelines for designing bridge piers and abutments for vehicle collisions

Date: August 2010
Creator: Buth, Eugene
Description: "An instrumented, simulated bridge pier was constructed, and two full-scale collisions with an 80,000-lb van-type tractor-trailer were performed on it. The trailer was ballasted with bags of sand on pallets. The simulated pier was 36 inches in diameter and was supported in the longitudinal direction by two load cells. Force-versus-time data were obtained from the load cells."
Contributing Partner: UNT Libraries Government Documents Department
Comprehensive evaluation of compaction of asphalt pavements and development of compaction monitoring system

Comprehensive evaluation of compaction of asphalt pavements and development of compaction monitoring system

Date: April 2012
Creator: Kassem, Emad Abdel-Rahman, 1979-; Scullion, Tom; Masad, Eyad; Chowdhury, Arif; Liu, Wenting; Estakhri, Cindy K. et al
Description: "This report aimed to conduct a comprehensive evaluation of compaction of asphalt pavements and develop software for monitoring field compaction in real time.The results were used to determine the effects of compaction temperature, compaction method, mixture design, and base type on the compactability of asphalt mixtures.Also in this report researchers developed a system for monitoring and documenting the compaction process of asphalt mixtures called compaction monitoring system (CMS)."
Contributing Partner: UNT Libraries Government Documents Department
Delivery of workshops on corridor management and preservation in Texas

Delivery of workshops on corridor management and preservation in Texas

Date: September 2010
Creator: Bochner, Brian S. & Hard, Edwin N.
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 during the three-year project period."
Contributing Partner: UNT Libraries Government Documents Department
Development guidance for sign design standards

Development guidance for sign design standards

Date: November 2011
Creator: Silvestri, Chiara
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."
Contributing Partner: UNT Libraries Government Documents Department
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