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  Partner: UNT Libraries Government Documents Department
 Serial/Series Title: Research report (Austin, Tex.)
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
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
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
Pavement repair strategies for selected distresses in FM roadways

Pavement repair strategies for selected distresses in FM roadways

Date: June 2012
Creator: Dessouky, Samer
Description: "Expansive soil is considered one of the most common causes of pavement distresses in FM roadways. Depending upon the moisture level, expansive soils will experience changes in volume due to moisture fluctuations from seasonal variations. The objective of this research was to evaluate existing repair projects on selected FM roadways. Those roadways experienced failures in the form of fatigue and rutting in the wheel path, and longitudinal (faulted) cracking including edge cracking. The causes of those failures were mainly linked to high PI expansive soil and narrow pavement."
Contributing Partner: UNT Libraries Government Documents Department
Performance of lap splices in large-scale column specimens affectedby ASR and/or DEF

Performance of lap splices in large-scale column specimens affectedby ASR and/or DEF

Date: June 2012
Creator: Bracci, Joseph M.
Description: "This research program conducted a large experimental program, which consisted of the design, construction, curing, deterioration, and structural load testing of 16 large-scale column specimens with a critical lap splice region, and then compared and calibrated models developed in the analytical program with the experimental behavior. Specimens were carefully instrumented both internally and externally to monitor the strain behavior of the concrete and reinforcing steel from specimen construction, curing, deterioration, and final structural load testing."
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
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
Texas Department of Transportation administration research: tasks completed Fiscal Year 2010

Texas Department of Transportation administration research: tasks completed Fiscal Year 2010

Date: February 2011
Creator: Baker, Richard
Description: "This research project evaluates numerous transportation issues and develops findings and/or recommendations based on results. This project has been structured to address some of the emerging, critical, and unique considerations related to transportation."
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
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