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  Partner: UNT Libraries Government Documents Department
 Decade: 2010-2019
School traffic workshop: dealing with Texas-sized problems around schools

School traffic workshop: dealing with Texas-sized problems around schools

Date: October 2011
Creator: Brewer, Marcus A.; Fitzpatrick, Kay & Cooner, Scott A.
Description: "This report summarized the series of "Traffic around Schools"" workshops conducted throughout the state of Texas to familiarize TxDOT employees and partner agencies with two key products from previous research projects (0-4286 and 0-5470) and other tools and guidance that are available for dealing with problems around schools."
Contributing Partner: UNT Libraries Government Documents Department
Unknown foundation determination for scour

Unknown foundation determination for scour

Date: April 2012
Creator: Briaud, J.-L.; Medina-Cetina, Zenon; Hurlebaus, Stefan; Everett, Mark; Tucker, Stacey; Yousefpour, Negin et al.
Description: This reports objective was to develop a global approach that would reduce the level of uncertainty associated with unknown foundations.
Contributing Partner: UNT Libraries Government Documents Department
Realtime monitoring of bridge scour using remote monitoring technology

Realtime monitoring of bridge scour using remote monitoring technology

Date: February 2011
Creator: Briaud, Jean-Louis; Hurlebaus, Stefan; Chang, Kuang-An; Yao, Congpu; Sharma, Hrishikesh; Yu, Ok-Youn et al.
Description: The research performed in this project focuses on the application of instruments including accelerometers and tiltmeters to monitor bridge scour. First, two large scale laboratory experiments were performed. One experiment is the simulation of a bridge with a shallow foundation, and the other is the simulation of a bridge with a deep foundation. A series of instruments were installed on the simulated bridge to monitor the performance of the bridge due to scour. Both the shallow foundation experiment and deep foundation experiment show that accelerometers and tiltmeters can be used in scour monitoring events since both give warning of bridge failure successfully. Subsequently, two individual monitoring systems were designed and installed on two bridges: US59 over Guadalupe River Bridge and SH80 over San Antonio River Bridge in Texas. Realtime data are collected and transmitted to a computer server at Texas A&M University, which can be accessed remotely. The instrumentation on the two bridges does not show great hope of application of accelerometers to monitor bridge scour because of a lack of sufficient excitation from traffic. Another issue with the accelerometers is the high power consumption during the transmission of accelerometer data, which cannot be satisfied with a typical solar panel ...
Contributing Partner: UNT Libraries Government Documents Department
Texas Urban Triangle: creating a spatial decision support system for mobility policy and investments that shape the sustainable growth of Texas

Texas Urban Triangle: creating a spatial decision support system for mobility policy and investments that shape the sustainable growth of Texas

Date: November 2010
Creator: Bright, Elise M.; Morgan, Curtis Alan & Neuman, Michael
Description: "This project came into being due to the dramatic transformation of the four core Texas metropolitan areas into an emergent megalopolis: Dallas-Fort Worth, Houston, San Antonio, and Austin. Its aims are two-fold: to provide a framework for decisions about future growth in the fastest growing region of Texas, and to spur further research into the complexities of this vast and rapidly emerging mega-region. The Texas Urban Triangle - 17 million persons spread over 58,000 square miles - is a new urban phenomenon, a triangular megalopolis whose development is not linear and contiguous. This report gives policy makers and investors from all sectors of society the critical knowledge they need to make decisions that will shape the future of Texas. The Texas Urban Triangle is one of the most dynamic urban regions in the nation, and to ensure it continues to flourish, we must build a future based on sustainable growth principles. Our preliminary findings suggest that this is not always the case. Further research needs to be conducted to obtain a complete, detailed, and comprehensive portrait. Nonetheless, even these preliminary findings are robust and point to more sustainable options for the future. Now that this preliminary analysis has been completed, ...
Contributing Partner: UNT Libraries Government Documents Department
Microsurfacing in Texas

Microsurfacing in Texas

Date: August 2011
Creator: Broughton, Benjamin & Lee, Soon-Jae
Description: This report describes the current state of practice of microsurfacing in Texas and compares it to best practices extracted from existing literature. A survey of DOT personnel, contractors and emulsion suppliers in Texas provides insight into the most crucial factors contributing to the success or failure of a microsurfacing. From the results of the survey, literature reviews, case studies and site visits, the research team analyzed material selection and mix design methods, construction practices, equipment practices and performance measures for microsurfacings.
Contributing Partner: UNT Libraries Government Documents Department
Valuing public sector risk exposure in transportation public-private partnerships

Valuing public sector risk exposure in transportation public-private partnerships

Date: October 2010
Creator: Bujanda, Arturo & Valdez-Ceniceros, Gabriel Alejandro
Description: "This report presents a methodological framework to evaluate public sector financial risk exposure when delivering transportation infrastructure through public-private partnership (PPP) agreements in the United States (U.S.)."
Contributing Partner: UNT Libraries Government Documents Department
Egret, Volume 18, Number 1, Fall 2011

Egret, Volume 18, Number 1, Fall 2011

Date: Autumn 2011
Creator: Burnett, Taryn
Description: Magazine concerning activities, events, academic programs, research, faculty, staff, students, alumni and donors of the University of Houston-Clear Lake.
Contributing Partner: UNT Libraries Government Documents Department
The short-run impact of gas prices on toll road use : $b gas price elasticity of toll road use

The short-run impact of gas prices on toll road use : $b gas price elasticity of toll road use

Date: September 2011
Creator: Burris, Mark & Huang, Chao
Description: One of the primary functions of transportation planning is to predict future travel behavior. Using estimated travel patterns, planners can then help decision makers select the array of projects that will best suit the needs of their community. Travel behavior is a function of many variables, with cost being among the most important. Recent fluctuations in the price of gas provide an excellent opportunity to observe the impact of the price of gas on travel behavior. This project goes a step beyond looking at the elasticity of travel with respect to gas price by examining how recent changes in gas prices have impacted travel on specific facilities: toll facilities. Data from around the US was used to examine how traffic levels on toll roads have been affected by fluctuations in gas prices over the last several years. This study developed models that account for the many other exogenous factors influencing toll road use (such as local economy, population, and toll rates), and provide an elasticity of toll road demand with respect to gas price independent of those other factors. This study will provide planners and toll road authorities with valuable information on how travelers react to increasing cost of travel ...
Contributing Partner: UNT Libraries Government Documents Department
The short-run impact of gas prices on toll road use: $b gas price elasticity of toll road use

The short-run impact of gas prices on toll road use: $b gas price elasticity of toll road use

Date: September 2011
Creator: Burris, Mark & Huang, Chao
Description: One of the primary functions of transportation planning is to predict future travel behavior. Using estimated travel patterns, planners can then help decision makers select the array of projects that will best suit the needs of their community. Travel behavior is a function of many variables, with cost being among the most important. Recent fluctuations in the price of gas provide an excellent opportunity to observe the impact of the price of gas on travel behavior. This project goes a step beyond looking at the elasticity of travel with respect to gas price by examining how recent changes in gas prices have impacted travel on specific facilities: toll facilities. Data from around the US was used to examine how traffic levels on toll roads have been affected by fluctuations in gas prices over the last several years. This study developed models that account for the many other exogenous factors influencing toll road use (such as local economy, population, and toll rates), and provide an elasticity of toll road demand with respect to gas price independent of those other factors. This study will provide planners and toll road authorities with valuable information on how travelers react to increasing cost of travel ...
Contributing Partner: UNT Libraries Government Documents Department
Equity evaluation of vehicle miles traveled fees in Texas

Equity evaluation of vehicle miles traveled fees in Texas

Date: March 2012
Creator: Burris, Mark; Larsen, Lisa. & Whitty, James M.
Description: "This report used 2009 National Household Travel Survey (NHTS) Texas data to consider the equity impacts surrounding four vehicle miles traveled (VMT) scenarios. Results indicate that all of the VMT fee scenarios are essentially as equally vertically equitable as the current state gas tax system."
Contributing Partner: UNT Libraries Government Documents Department