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  Partner: UNT Libraries Government Documents Department
 Serial/Series Title: Research report (Southwest Region University Transportation Center (U.S.))
Potential connected vehicle applications to enhance mobility, safety, and environmental security

Potential connected vehicle applications to enhance mobility, safety, and environmental security

Date: February 2012
Creator: Balke, Kevin N.
Description: "Researchers first conducted a comprehensive review of the state-of-the-art connected-vehicle research and technologies. Once researchers had a thorough understanding of the technology, they focused on selecting and developing the near-term practical applications that use connected vehicle technology. The research team then sought expert opinions from the Texas Transportation Institute working group during two brainstorming sessions, which produced two lists of potential applications and prioritized the applications based on deployment feasibility. In particular, a total of five applications were selected for development of the full concept of operations, including two in safety, two in mobility, and one in environmental security. These applications address various problems, including wrong-way driving and unprotected-grade-crossing crashes (safety): work-zone merge efficiency and safety, and freeway speed harmonization (mobility): and slippery pavement-related crashes (environmental security)."
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Development and validation of a testing protocol for carbon sequestration using a controlled environment

Development and validation of a testing protocol for carbon sequestration using a controlled environment

Date: March 2012
Creator: Storey, Beverly B.
Description: "This project conducted initial testing to develop a method for quantifying plant and soil carbon sequestration capabilities under the controlled conditions of the Texas Transportation Institute's Environmental and Emissions Research Facility (EERF)."
Contributing Partner: UNT Libraries Government Documents Department
Performance measures for metropolitan planning organizations

Performance measures for metropolitan planning organizations

Date: April 2012
Creator: Moore, Devin
Description: "The aim of this project is to consolidate available knowledge and provide guidance to transportation agencies, specifically MPOs, to help them incorporate performance measurement relating to transportation planning and operations. This research includes a survey of agency practices and agency needs, development of guidance on effective performance measurement and allied issues of strategic planning, goal setting, and data collection."
Contributing Partner: UNT Libraries Government Documents Department
Predicting damage in concrete due to expansive aggregates : modeling to enable sustainable material design

Predicting damage in concrete due to expansive aggregates : modeling to enable sustainable material design

Date: April 2012
Creator: Grasley, Zachary Charles
Description: "A poroelastic model is developed that can predict stress and strain distributions and, thus, ostensibly damage likelihood in concrete under freezing conditions caused by aggregates with undesirable combinations of geometry and constitutive properties.Sensitivity of the stress distributions to the aggregate and matrix constitutive parameters are assessed to allow improved concrete design."
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
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 economic efficiency of allowing longer combination vehicles in Texas

The economic efficiency of allowing longer combination vehicles in Texas

Date: August 2011
Creator: Walton, C. Michael.
Description: "This paper shows the economic efficiency of allowing longer combination vehicles in Texas. First, an overview of the truck size and weight policies is explained, with an emphasis on those that affect Texas. Next, LCV operations in other countries are described. Then, an LCV scenario for Texas is chosen, with specific routes and vehicle types. Operational costs for these vehicles are calculated on a cost per mile and cost per ton (or cubic yard) mile. The LCV scenario and the current truck base case are analyzed to find the number of truck trips, the number of mile, and the cost per mile for the chosen routes. These are then compared to estimate the change if LCVs were allowed in Texas."
Contributing Partner: UNT Libraries Government Documents Department
Evaluating the effect of street network connectivity on first/last mile transit performance

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

Date: November 2011
Creator: Chandra, Shailesh.
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."
Contributing Partner: UNT Libraries Government Documents Department
Prioritization of highway maintenance functions using multi-attribute decision making with fuzzy pairwise comparison

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

Date: September 2011
Creator: Zhang, Zhanmin
Description: "As is the case for most of the Departments of Transportation in the U.S., the Texas Department of Transportation has been experiencing fluctuations of budget for maintaining and preserving its highway infrastructure over the recent years. If the maintenance budget shortfall lasts for an extended period of time, the condition of the highway network would be harmed directly or indirectly since some maintenance work would be deferred or canceled. Thus, in order to control and minimize the risk caused by maintenance budget reductions, it is important for highway agencies to adjust their maintenance and rehabilitation policies to accommodate budget fluctuations. This thesis presents a methodological framework that helps highway agencies quantify the risks to highway networks, and revise the highway routine maintenance work plans to minimize the impact of budget fluctuations. The proposed methodology aims to assist highway agencies in prioritizing and selecting maintenance functions according to the risk of not performing a specific maintenance activity. Also, this methodology considers the subjective nature of decision makers' assessments, allowing different levels of confidence and different attitudes toward risk to be captured as the uncertainty and imprecision involved in the decision making process. In the case study, the proposed methodology is tested ...
Contributing Partner: UNT Libraries Government Documents Department
Getting the parking right for transit-oriented development

Getting the parking right for transit-oriented development

Date: March 2012
Creator: Zhang, Ming.
Description: "The main objective of this study is to report the state-of-the-knowledge on parking regulations and practice influencing the planning, design, and implementation of TOD. The report first offers a narrative review of the published works on TOD-Parking. Based on the review findings it then presents a matrix of best parking practices for TOD."
Contributing Partner: UNT Libraries Government Documents Department
Fracture properties and fatigue cracking resistance of asphalt binders

Fracture properties and fatigue cracking resistance of asphalt binders

Date: March 2012
Creator: Bhasin, Amit.
Description: "The main objective of this study was to evaluate the inherent fatigue cracking resistance of asphalt binders in the form of a matrix with rigid particle inclusions. The underlying rational for this approach was to subject the binders to a state of stress that is similar to the one in a full asphalt mixture."
Contributing Partner: UNT Libraries Government Documents Department
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