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  Partner: UNT Libraries Government Documents Department
 Serial/Series Title: Research report (Austin, Tex.)
Pavement preservation and system optimization task force

Pavement preservation and system optimization task force

Date: January 2011
Creator: Lomax, Timothy J.
Description: "This report provides: an overview of a proposed three-tier system, preliminary results from a state department of transportation (DOT) survey, initial estimates of required funding, ideas of UTP Category 1 Formula, and an overview of the status of mobility."
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
Steel fiber replacement of mild steel in prestressed concrete beams

Steel fiber replacement of mild steel in prestressed concrete beams

Date: January 2011
Creator: Tadepalli, Padmanabha R.; Hoffman, Norman; Mo, Y. L. & Hsu, Thomas T. C. (Thomas Tseng Chuang), 1933-
Description: In traditional prestressed concrete beams, longitudinal prestressed tendons serve to resist bending moment and transverse mild steel bars (or stirrups) are used to carry shear forces. However, traditional prestressed concrete I-beams exhibit early-age cracking and brittle shear failure at the end zones despite the use of a high percentage of stirrups (4.2%). Moreover, producing and placing stirrups require costly labor and time. To overcome these difficulties, it is proposed to replace the stirrups in prestressed concrete beams with steel fibers.
Contributing Partner: UNT Libraries Government Documents Department
Determination of minimum height and lateral design load for MASH test level 4 bridge rails

Determination of minimum height and lateral design load for MASH test level 4 bridge rails

Date: October 2011
Creator: Bligh, Roger P.; Menges, Wanda L. & Sheikh, Nauman Mansoor
Description: "This research had the objectives of determining the minimum rail height and lateral design impact load for MASH test level 4 bridge rails. Using parametric finite element analysis and subsequent crash testing, the researchers determined the minimum recommended rail height for MASH TL-4 impact conditions to be 36 inches. Later Design impact for MASH TL-4 test conditions was determined to be 80 kips."
Contributing Partner: UNT Libraries Government Documents Department
Lane assignment traffic control devices on frontage roads and conventional roads at interchanges

Lane assignment traffic control devices on frontage roads and conventional roads at interchanges

Date: October 2010
Creator: Nelson, Alicia A.; Tydlacka, Jonathan M.; Stevens, Roma G.; Chrysler, Susan T. & Voigt, Anthon P.
Description: "This project conducted state-of-the-practice surveys, focus groups, and driver surveys to develop test signs used for field deployment and evaluation regarding lane assignment on frontage roads and cross streets."
Contributing Partner: UNT Libraries Government Documents Department
Texas flexible pavements and overlays.  Year 1 report,  Test sections, data collection, analyses, and data storage system

Texas flexible pavements and overlays. Year 1 report, Test sections, data collection, analyses, and data storage system

Date: June 2012
Creator: Walubita, Lubinda F.; Das, Gautam; Espinoza, Elida; Oh, Jeongho; Lee, Sang Ick; Scullion, Tom et al.
Description: "This report provides a documentation of the work completed in Year 1 of the project including the following: 1) Literature review; 2) development of data collection and analysis plans, and 3) field test sections."
Contributing Partner: UNT Libraries Government Documents Department
MASH test 3-11 on the 5-inch cast in place deck barrier anchors

MASH test 3-11 on the 5-inch cast in place deck barrier anchors

Date: October 2011
Creator: Bligh, Roger P.; Menges, Wanda L. & Arrington, Dusty R.
Description: "A full-scale crash test was performed to evaluate the impact performance of a Texas T223 concrete beam and post bridge rail anchored to a 5-nch cast-in-place deck (CIPD). The testing followed the MASH standards for Test Level 3 ( TL-#) longitudinal barriers. The test performed was American Association of State Highways and Transportation Officials (AAHSTO) Manual for Assessing Safety Hardware (MASH) test 3-11, which involves a 2270P (500 lb) pickup truck impacting the critical impact point (CIP) of the barrier at a nominal impact speed and angle of 62 mi/h and 25degress, respectively. This test evaluated the strength of the barrier and its anchorage to the 5-inch CIPD."
Contributing Partner: UNT Libraries Government Documents Department
HeatWurx patching at two locations in San Antonio

HeatWurx patching at two locations in San Antonio

Date: June 2012
Creator: Freeman, Thomas J. & Epps, Jon A.
Description: "This report documents the placing, cost, and performance of the HeatWurx pavement patching process, which uses infrared heating to make the pavement soft enough to mill and scarify so that it can be mixed with a rejuvenator and pavement millings to form a patch that stays bonded to the surrounding material."
Contributing Partner: UNT Libraries Government Documents Department
Fatigue failure and cracking in high mast poles

Fatigue failure and cracking in high mast poles

Date: March 2012
Creator: Goyal, Raka; Dhonde, Hemant B. & Dawood, Mina
Description: "This report presents the findings of a comprehensive research project to investigate the fatigue cracking and failure of galvanized high mast illumination poles (HMIP)."
Contributing Partner: UNT Libraries Government Documents Department
Recommendations for design, construction, and maintenance of bridge approach slabs

Recommendations for design, construction, and maintenance of bridge approach slabs

Date: May 2012
Creator: Puppala, Anand J.; Archeewa, Ekarut; Saride, Sireesh; Hoyos, Laureano R., 1972- & Nazarian, Soheil, 1955-
Description: Report regarding treatment methods for controlling settlements of approach slabs of new bridge construction. The report is presented in two parts, with the first part concerns the compiling and presentation of documented information while the second part deals with field evaluation of methods to reduce settlement.
Contributing Partner: UNT Libraries Government Documents Department
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