Staff, equipment, trucks

Staff, equipment, trucks

Date: February 22, 1950
Creator: Douglass, Neal
Description: Rhoades transfer & Storage
Contributing Partner: Austin History Center, Austin Public Library
The Junior Historian, Volume 27, Number 4, January 1967

The Junior Historian, Volume 27, Number 4, January 1967

Date: January 1967
Creator: Texas State Historical Association
Description: Journal published by the Texas State Historical Association containing articles written by members of the Junior Historians about various aspects of Texas history.
Contributing Partner: Texas State Historical Association
The Junior Historian, Volume 6, Number 6, May 1946

The Junior Historian, Volume 6, Number 6, May 1946

Date: May 1946
Creator: Texas State Historical Association
Description: Journal published by the Texas State Historical Association containing articles written by members of the Junior Historians about various aspects of Texas history.
Contributing Partner: Texas State Historical Association
Evaluating existing culverts for load capacity allowing for soil structure interaction

Evaluating existing culverts for load capacity allowing for soil structure interaction

Date: December 2010
Creator: Lawson, William D.; Wood, Timothy A.; Newhouse, Charles D. & Jayawickrama, Priyantha W.
Description: This study explores culvert load rating practices and procedures as applied to the Texas Department of Transportation's (TxDOT's) archive of 1477 culvert designs and their inventory of more than 13,000 in-service reinforced concrete box culverts. The problem is that when older culverts are load-rated based on current AASHTO policy, many competent, serviceable culverts are shown to be deficient, requiring load posting, retrofit or replacement. A disconnect exists between culvert structural analysis practices and actual culvert performance. To address this challenge, the research focused on development of a clear, repeatable and reliable procedure for TxDOT engineers and their consultants to use for load rating culverts in the TxDOT roadway system. Articulated in TxDOT's Culvert Rating Guide, the new load rating procedure uses three increasingly-sophisticated analysis approaches, ranging from a direct stiffness frame model to a production-oriented finite element model which accounts for soil-structure interaction. Validation of the Culvert Rating Guide involved three major tasks. First, the researchers load-rated a statistically representative sample of 100 of TxDOT's culvert designs. Second, a parametric study was performed to evaluate six independent variables associated with culvert load rating. Third, instrumented load tests on three in-service culverts were conducted to compare measured demands with predicted values. ...
Contributing Partner: UNT Libraries Government Documents Department
Development of a MASH TL-2 guardrail-to-bridge rail transition compatible with 31-inch guardrail

Development of a MASH TL-2 guardrail-to-bridge rail transition compatible with 31-inch guardrail

Date: December 2011
Creator: Bligh, Roger P.; Arrington, Dusty R. & Menges, Wanda L.
Description: The TxDOT Design Division is in the process of developing new guardrail standards that comply with the AASHTO Manual for Assessing Safety Hardware (MASH). The new guardrail system will provide increased capacity and improved impact performance relative to the current design. A key feature of the new system is an increased in rail mounting height from 27 inches to 31 inches. TxDOT's current TL-2 metal beam transition is 27 inches tall and is not compatible with the new 31 inch guardrail system. While the high-speed, nested thrie beam transition system meets MASH guidelines and is compatible with a 31-inch guardrail, it would be cost-prohibitive to use it on all roadways. The objective of this research was to develop a transition that is suitable for use on lower speed roadways, less expensive and complex than the current high-speed (i.e., TL-3) transition design, and is compatible with a 31-inch guardrail. A low-cost guardrail-to-bridge rail transition was successfully developed and tested under MASH Test Level 2 conditions. It is compatible with a 31-inch guardrail and can connect to rigid concrete bridge rails. It is considered suitable for implementation on roadways that have traffic conditions appropriate for the use of TL-2 safety hardware. Use ...
Contributing Partner: UNT Libraries Government Documents Department
Catalog of effective treatments to improve driver and worker safety at short-term work zones

Catalog of effective treatments to improve driver and worker safety at short-term work zones

Date: January 2001
Creator: Fontaine, Michael D. & Hawkins, H. Gene
Description: "This report catalogs several devices that were found to be effective at improving driver and worker safety at short-term work zones. The services include are: fluorescent yellow-green worker vests and hard hat covers, portable variable message signs, speed display trailers, fluorescent orange roll-up signs, radar drones, and retroreflective magnetic strips for work vehicles. The catalog provides a brief description of each treatment, along with a summary of the treatment's effectiveness, and recommendations for its use at short-term work zones."
Contributing Partner: UNT Libraries Government Documents Department
TxDOT uses of real-time commercial traffic data :  opportunity matrix

TxDOT uses of real-time commercial traffic data : opportunity matrix

Date: January 2012
Creator: Middleton, Dan; Brydia, Robert; Kraus, Edgar; Cheu, Kelvin; Rajbhandari, Rajat, 1973-; Songchitruksa, Praprut et al.
Description: Based on a TxDOT survey, a review of other state DOTs, and researcher understanding of Intelligent Transportation System (ITS) needs, the Texas Transportation Institute (TTI) team developed a comprehensive list of opportunities for TxDOT to consider pertaining to future use of private sector (PS) data. Specific opportunities for applying private data were reviewed in light of accuracy of the data, coverage areas, data availability, cost, and control of the data stream.
Contributing Partner: UNT Libraries Government Documents Department
Focus Report, Volume 82, Number 1, November 23, 2010

Focus Report, Volume 82, Number 1, November 23, 2010

Date: November 23, 2010
Creator: Texas. Legislature. House of Representatives. Research Organization.
Description: Report that reviews several of the issues that the 82nd Legislature of Texas were to consider during its 2011 regular session. Topics include taxes and revenue; business and economic development; criminal justice and public safety; health and human services; education; immigration; energy and environment; transportation; government organization; and the judiciary.
Contributing Partner: UNT Libraries Government Documents Department
Rapid field detection of sulfate and organic content in soils :  technical report

Rapid field detection of sulfate and organic content in soils : technical report

Date: October 2010
Creator: Harvey, Omar; Sebesta, Stephen & Harris, Pat
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.
Contributing Partner: UNT Libraries Government Documents Department
Proposed TxDOT strategic research program

Proposed TxDOT strategic research program

Date: October 2010
Creator: Persad, Khali (Khali Ram), 1956-; Gilliland, Cynthia A. Weatherby; Nash, Phil; Machemehl, Randy B.; Stockton, Bill & Cleveland, Theodore
Description: "This report documents the results of the work conducted by the Center for Transportation Research (CTR) at the University of Texas at Austin, the Texas Transportation Institute (TTI), and The Center for Multidisciplinary Research in Transportation (TechMRT) at Texas Tech University, to assist TxDOT in developing the elements of the SRP."
Contributing Partner: UNT Libraries Government Documents Department
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