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An Assessment and Framework of Management Science Applications for TxDOT

Description: Report discussing the results of a project in which researchers implemented a systematic approach to identify the domains within the Texas Department of Transportation (TxDot) where Operations Research and Management Science (OR/MS) techniques could lead to substantial improvements.
Date: October 2011
Creator: Waller, S. Travis; Walewski, John; Chang, Carlos; Fajardo, David; Lasdon, Leon; Montes, Edith et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Texas Energy Sector: Past and Future

Description: "The objectives of this research study were to (a) illustrate and quantify the impacts imposed by the energy sector on Texas's transportation system and (b) identify key energy demand indicators by energy source that TxDOT can track in an effort to anticipate the associated future transportation impacts on Texas's transportation system."
Date: December 2011
Creator: Prozzi, Jolanda; Dumais, Ashley; Cline, Mike; Loftus-Otway, Lisa & Seaborne, Eleanor
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Traffic Operations and Safety Benefits of Active Traffic Strategies on TxDOT Freeways

Description: Report discussing a project, which developed a series of interdependent models and a simulation framework to evaluate the traffic operations and safety benefits of ATM strategies. Four ATM scenarios were evaluated in this study: variable speed limits (VSL), peak-period shoulder use, VSL and shoulder use, and ramp metering.
Date: October 2011
Creator: Nezamuddin, N.; Jiang, Nan (Writer on transportation); Zhang, Ti; Waller, S. Travis & Sun, Dazhi
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Implementation of Database for TxDOT ARRA Projects

Description: Report discussing projects initiated under the American Recovery and Reinvestment Act of 2009 (ARRA), a fiscal stimulus package signed by President Obama on March 6, 2009. State agencies like the Texas Department of Transportation (TxDOT) who received ARRA funds had to report, on a monthly basis, various data on each project in the ARRA program, including staff numbers, hours worked, and payroll. TxDOT asked the Center for Transportation Research (CTR) to identify and isolate specific elements … more
Date: August 2011
Creator: Persad, Khali R. & Suri, Jasjyot S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Literature review of current practices in dealing with fluctuations of maintenance budgets

Description: Report discussing a literature review of current budget cutting strategies used in routine roadway maintenance planning, including methods and techniques that are employed by other state and international transportation organizations (DOT's). It also reviewed methodologies developed from previous research and identified the most effect risk management techniques.
Date: September 2011
Creator: Gonzales, Epigmenio.; Li, Wenxing; Murphy, Mike; O'Connor, James T.; Bhat, Chandra R. & Yildirim, Yetkin
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Prioritization of highway maintenance functions using multi-attribute decision making with fuzzy pairwise comparison

Description: Report on a methodological framework to help highway agencies develop maintenance plans that are minimally impacted by budget fluctuations. It includes a case study testing the effectiveness of the methodology using data from the Texas Department of Transportation.
Date: September 2011
Creator: Zhang, Zhanmin & Liu, Wenxing
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Evaluating the effect of street network connectivity on first/last mile transit performance

Description: "This study defines a novel connectivity indicator (CI) to predict transit performance by identifying the role that street network connectivity plays in influencing the service quality of demand responsive feeder transit services."
Date: November 2011
Creator: Chandra, Shailesh. & Quadrifoglio, Luca
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Evaluation, presentation and repair of microbial acid-produced attack of concrete

Description: This report evaluates the severity of the deterioration in bridges to determine if microbial induced deterioration (MID) is a significant contributor by visual inspection and a number of tests on twelve selected columns. This report also evaluates the effectiveness of suggested test procedures on identifying microbial attack on concrete and the integrity of deteriorated concrete due to the attack.
Date: October 2011
Creator: Hu, Jiong; Hahn, Dittmar; Rudzinski, Walter; Wang, Zhuo & Estrada, Luzelva
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

CAM Mix Design With Local Aggregates

Description: "This study provides revised mix design recommendations for crack attenuating mixtures (CAM) with local aggregates. The use of lower quality aggregates is cost beneficial but limits the application of these mixes in terms of reduced performance. Aggregate guidelines and aggregate quality criteria are provided to enhance the rutting and cracking performance of these mixes. The mix design recommendations as well as aggregate guidelines and quality criteria provided in the report are based on la… more
Date: October 2011
Creator: Smit, Andrè de Fortier; Prasad, Sivaram; Prozzi, Jorge Alberto & Tahmoressi, Maghsoud
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Estimating Texas motor vehicle operating costs : final report

Description: "This report and its appendices summarize the findings of a 2-year extension to the TxDOT-sponsored study 0-5974 entitled "Estimating Texas Motor Vehicle Costs" undertaken by a Center for Transportation Research (CTR) team of mechanical engineers and economists at The University of Texas at Austin."
Date: November 2011
Creator: Matthews, Ronald; Seedah, Dan; Ates, Murat; Kim, Kyung Jin; Anderson, Garrett; Vaughn, James et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Implementing a project and portfolio management system for TxDOT project development

Description: "Beginning in the summer of 1999, Texas Department of Transportation (TxDOT) started developing the framework for implementing a sophisticated new system to manage its large and diverse portfolio of projects during their development phase. This was followed by the implementation itself for managing project schedules, project and portfolio resources and costs during their development cycle. This unique and challenging implementation across TxDOT encompassed all functional areas involved in the p… more
Date: October 2011
Creator: Khwaja, Nabeel
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Continuous prestressed concrete girder bridges. Volume 1, Literature review and preliminary designs

Description: "The Texas Department of Transportation (TxDOT) is currently designing typical highway bridge structures as simply supported using standard precast, pretension-ed girders. TxDOT is interested in developing additional economical design alternatives for longer span bridges, through the use of the continuous precast, pretension-ed concrete bridge structures that use spliced girder technology. The objectives of this portion of the study are to evaluate the current stat-of-the-art and practice relev… more
Date: October 2011
Creator: Mander, John B.; Parkar, Anagha S. & Hueste, Mary Beth D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Developing a mixture design specification for flexible base construction

Description: "In the Texas Department of Transportation (TxDOT), flexible base producers typically generate large stockpiles of material exclusively for TxDOT projects. This large "state-only" inventory often maintained by producers, along with time requirements for testing and reduced manpower within TxDOT offices, resulted in this project's investigation into a mixture-design specification for flexible base. The goals of this project are to develop a flexible base specification that reduces TxDOT's burden… more
Date: October 2011
Creator: Epps, Jon A.; Sebesta, Stephen; Sahin, Hakan; Button, Joe; Luo, Rong & Lytton, Robert
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Use of dowel bars at longitudinal construction joints

Description: Report discussing the primary objective of this research project, whcih was to develop rational guidelines on the use of dowel bars in longitudinal construction joints (LCJs) for better-performing concrete pavements without potential longitudinal cracking problems.
Date: August 2011
Creator: Ha, Soojun; Cobos, Luis; Choi, Cheol Choi; Yeon, Jungheum; Cho, Byounghooi & Won, Moon C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Best Practice for Using RAS in HMA

Description: "The use of recycles asphalt shingles (RAS) in hot-mix asphalt (HMA) mixtures has the potential to significantly reduce the cost of asphalt paving mixes while conserving energy and preserving the environment. This report documents the best practices for the use of RAS in HMA in terms of Ras processing, characterizing the processed RAS (binder content,gradations, and performance grad [PG]), RAS mix design, production, and field construction."
Date: October 2011
Creator: Zhou, Fujie; Button, Joe W. & Epps, Jon
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Impacts of energy developments on the Texas Transportation System infrastructure

Description: "Texas energy sector has a critical impact-historically and currently-on both the state economy and the Texas transportation system. The stat's various transportation modes, including rail, highways, pipelines, and ports, form a system that supports the energy sector in a number of ways."
Date: October 2011
Creator: Prozzi, Jolanda; Grebenschikov, Sergey; Banerjee, Ambarish & Prozzi, Jorge Alberto
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Effect of climate change on crop production patterns with implications to transport flows and inland waterways

Description: "This report analyzed the demand for transportation capacity and changes in transportation flows on inland waterways due to shifts in crop production patterns induced by climate change."
Date: December 2011
Creator: Vedenov, Dmitry V.; Fuller, Stephen W.; McCarl, Cruce A.; Attavanich, Witsanu & Ahmedov, Zafarbek
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

International air cargo operations and gateways: their emerging importance to the state of Texas

Description: "This report examines the potential of Texas-based airports, especially Dallas-Ft. Worth International Airport and the Houston Airport System, to emerge as international gateways for global trade in general and trans-Pacific trade in particular. The period covered is 2001 to 2006."
Date: July 2011
Creator: Cho, Hee Deok & Boske, Leigh B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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