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  Partner: UNT Libraries Government Documents Department
 Serial/Series Title: Research report (Southwest Region University Transportation Center (U.S.))
International air cargo operations and gateways: their emerging importance to the state of Texas

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

Date: July 2011
Creator: Cho, Hee Deok & Boske, Leigh B.
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."
Contributing Partner: UNT Libraries Government Documents Department
Investigate existing Non-Intrusive Inspection (NII) technologies for port cargo inspections

Investigate existing Non-Intrusive Inspection (NII) technologies for port cargo inspections

Date: September 2011
Creator: Salehi, Yasamin & Wang, Yubian
Description: "The goal of this research was to identify the most effective and efficient combination of NII technologies for inspecting cargo arriving at U.S. ports. For this purpose, a discrete-event simulation model was developed to simulate the cargo inspection procedure. By simulating the operations of different combinations of NII technologies, the effectiveness and efficiency of the various combinations were evaluated."
Contributing Partner: UNT Libraries Government Documents Department
An investigation of the effects of reading and writing text-based messages while driving

An investigation of the effects of reading and writing text-based messages while driving

Date: August 2011
Creator: Yager, Christine; Chrysler, Susan T. & Cooper, Susan T.
Description: "Previous research, using driving simulation, crash data, and naturalistic methods, has begun to shed light on the dangers of texting while driving."
Contributing Partner: UNT Libraries Government Documents Department
Laboratory evaluation of friction loss and compactability of asphalt mixtures

Laboratory evaluation of friction loss and compactability of asphalt mixtures

Date: April 2012
Creator: Kassem, Emad Abdel-Rahman; Masad, Eyad; Awed, Ahmed & Little, Dallas
Description: "This study aimed to develop prediction models for friction loss and laboratory compaction of asphalt mixtures. In addition, the study evaluated the effect of compaction level and compaction method of skid resistance and the internal structure of asphalt mixtures."
Contributing Partner: UNT Libraries Government Documents Department
The light-duty-vehicle fleet's evolution: anticipating Plug-In-Electric-Vehicle adoption and greenhouse gas emissions across the U.S. fleet

The light-duty-vehicle fleet's evolution: anticipating Plug-In-Electric-Vehicle adoption and greenhouse gas emissions across the U.S. fleet

Date: May 2011
Creator: Kockelman, Kara; Musti, Sashank & Paul, Binny
Description: "The first part of this report relies on stated and revealed preference survey results across a sample of U.S. households to first ascertain vehicle acquisition, disposal, and use patterns, and then simulate these for a synthetic population over time. The second part of this report relies on data from the U.S. Consumer Expenditure Survey (CEX) to estimate the welfare impacts of carbon taxes and household-level capping of emission (with carbon-credit trading allowed)."
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Managing commodity risks in highway contracts: quantifying premiums, accounting for correlations among risk factors, and designing optimal price-adjustment contracts

Managing commodity risks in highway contracts: quantifying premiums, accounting for correlations among risk factors, and designing optimal price-adjustment contracts

Date: September 2011
Creator: Damnjanovic, Ivan & Zhou, Xue
Description: "The main goal of this report is to investigate the impact of commodity price risk on construction cost and the optimal risk hedging of such risks using price adjustment clauses. More specifically, the objective of the report is to develop models that can help highway agencies manage commodity price risks. In this report, weighted least square regression model is used to estimate the risk premium; both univariate and vector time series models are estimated and applied to simulate changes in commodity prices over time, including the effect of correlation; while genetic algorithm is used as a solution approach to a multi-objective optimization formulation. The data set used in this report consists of TxDot bidding data, market-based data including New York Mercantile Exchange (NYMEX) future options data, and Engineering New-Record (ENR) material cost index data. The results of this report suggest that the optimal risk mitigation actions are conditional on owners' risk preferences, correlation among the prices of commodities, and volatility of the market."
Contributing Partner: UNT Libraries Government Documents Department
Megaregion freight movements : a case study of the Texas triangle

Megaregion freight movements : a case study of the Texas triangle

Date: September 2011
Creator: Harrison, Robert & Seedah, Dan
Description: "U.S. population growth is predicted to substantially increase over the next 40 years, particularly in areas with large regional economies forecasted to contain over two-thirds of the national economic activity. In Texas, population growth from 200 to 2040 is predicted to increase around 72% and produce a diverse population of some 36 million. This will comprise 12% rural and 88% urban, much of it in the 26 metropolitan areas. These population and economic estimates stimulated the exploration of appropriate planning strategies to address the needs of serving such growth, including a macro approach encapsulated in the term mega-regions. Although some planners are skeptical about whether this concept enhances traditional planning, it does merit examination in the freight transportation sector, which tends to get less emphasis in community and regional planning. Texas has at least one mega-region, and the largest-The Texas Triangle, comprising Dallas/Fort Worth-San Antonio-Houston-generates over 60% of the gross stat product. The project will consider the Texas Triangle with an emphasis on maintaining efficient future freight movement and will offer multimodel solutions to moving freight to , between, and within the metropolitan economies of the mega-region to 2050."
Contributing Partner: UNT Libraries Government Documents Department
Network methods for project selection based on optimizing environmental impact

Network methods for project selection based on optimizing environmental impact

Date: August 2010
Creator: Duthie, Jennifer Clare; Waller, S. Travis & Ferguson, Erin M.
Description: "Traditionally, transportation road networks have been designed for minimal congestion. Unfortunately, such approaches do not guarantee minimal vehicle emissions. Given the negative impacts of vehicle pollutants as well as tighter national air quality standards, it is critical for regions to be able to identify capacity modifications to road networks such that vehicle emission are minimal. This ability combined with land use changes and opportunities for non-auto travel are paramount in helping regions improve air quality."
Contributing Partner: UNT Libraries Government Documents Department
On jointly analyzing the physical activity participation levels of individuals in a family unit using a multivariate copula framework

On jointly analyzing the physical activity participation levels of individuals in a family unit using a multivariate copula framework

Date: September 2010
Creator: Eluru, Naveen; Bhat, Chandra R. & Sener, Ipek N.
Description: "The report focuses on analyzing and modeling the physical activity participation levels ( in terms of the number of daily "bouts" or "episodes" of physical activity during a weekend day) of all members of a family jointly."
Contributing Partner: UNT Libraries Government Documents Department
Operational and vehicular strategies for reducing fuel consumption and Green House Gas emissions from trucking

Operational and vehicular strategies for reducing fuel consumption and Green House Gas emissions from trucking

Date: August 2011
Creator: Walton, C. Michael & Thompson, Melissa Renee
Description: "Reducing fuel consumption and greenhouse gas emissions is becoming increasingly important in the United States, and new legislation can be expected in the near future that will affect trucks either directly or indirectly. This work is a qualitative examination of operational strategies for reducing fuel consumption from freight trucking, and also compares them with vehicular strategies. A focus is placed on who implements, benefits from, and pays for each strategy, and what type of trucking each strategy is applicable to."
Contributing Partner: UNT Libraries Government Documents Department