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 Serial/Series Title: Technical report (Texas Tech University. Center for Multidisciplinary Research in Transportation)
 Collection: Texas State Publications
Construction and evaluation of post-tensioned pre-stressed concrete pavement

Construction and evaluation of post-tensioned pre-stressed concrete pavement

Date: September 2010
Creator: Choi, Seongcheol
Description: This report discusses the issues raised during the pre-construction and construction phases of 9-in thick post-tensioned concrete pavement (PCP) with 300-ft long slabs that started in May 2008.
Contributing Partner: UNT Libraries Government Documents Department
Develop mechanistic-empirical design for CRCP

Develop mechanistic-empirical design for CRCP

Date: May 2012
Creator: Ha, Soojun; Yeon, Jungheum; Choi, Byounghooi; Jung, Youn su; Zollinger, Dan G.; Wimsatt, Andrew James, 1964- et al
Description: This report explains why a mechanistic-empirical (ME) based pavement design method will allow Texas Department of Transportation (TxDOT) to optimize pavement structures to best utilize the limited financial resources available."
Contributing Partner: UNT Libraries Government Documents Department
Horizontal cracking in Continuously Reinforced Concrete Pavements

Horizontal cracking in Continuously Reinforced Concrete Pavements

Date: August 2010
Creator: Won, Moon-Cheol & Choi, Seong Cheol
Description: The primary objective of this study was to identify the mechanism of HC in CRCP due to environmental loading (temperature and moisture variations).
Contributing Partner: UNT Libraries Government Documents Department
Rational use of terminal anchorages in Portland cement concrete pavements

Rational use of terminal anchorages in Portland cement concrete pavements

Date: February 2012
Creator: Jaiswal, Harshita
Description: Abstract: "It has long been stated that portland cement concrete (PCC) pavements can grow and push bridges, resulting in damage to bridge structures. To protect bridge structures from damages due to the expansion of PCC pavements, three terminal systems are currently used in Texas: anchor lug (AL), wide-flange (WF), and expansion joint (EJ) systems. However, the effectiveness of these three systems has not been fully evaluated. This study investigated the parameters affecting the movements of continuously reinforced concrete pavement (CRCP) due to temperature variations near bridge terminal areas, whether thermal expansion of CRCP causes damage to bridge structures, and if it does, which terminal type is the most cost effective. Field evaluations revealed that subbase friction plays an important role, and the movement of CRCP due to temperature variations was not excessive if the subbase friction is adequate and may not cause damage to the bridge structures. Most of the distresses near the bridge terminal areas were due to volume changes or instability in the embankment materials. The end movement of CRCP could be accommodated by a simple EJ system if there is adequate subbase friction. The benefits of WF and AL systems are doubtful considering their higher initial construction ...
Contributing Partner: UNT Libraries Government Documents Department
Synthesis of successful bicycle planning in mid-size cities

Synthesis of successful bicycle planning in mid-size cities

Date: August 2011
Creator: Kumfer, Wesley; Chintaluri, Bhargavi & Liu, Hongchao
Description: " The goal of this research project was to synthesize successful practices of bicycle planning in mid-size cities, including reviews of bicycle practices in the U.S. and successful experiences in planning, design, and implementation of bicycle facilities, conduct a survey of successful bicycle policies and practices in the U.S., and identify common problems in bicycling and key factors for promoting bicycling transportation."
Contributing Partner: UNT Libraries Government Documents Department
Texas Department of Transportation and electric power transmission lines

Texas Department of Transportation and electric power transmission lines

Date: September 2010
Creator: Nash, Phillip T.; Hood, John; Hutson, Nathan; Knipstein, Ben; Loftus-Otway, Lisa; Smith, Doug et al.
Description: The purpose of this study was to provide baseline information and case studies to better define TxDOT's role in electric power transmission lines and partnering with public utilities. Technical and legal issues were documented in literature and legal analysis undertaken during the study. Stakeholders in electric power generation and transmission were identified, and researchers interviewed a variety of state agencies, transmission providers, renewable energy non-profit organizations, property rights advocates, independent system operators, public utilities and other state departments of transportation. The researchers conclude that at present, the location of transmission alongside transportation is a reasonable and achievable goal.
Contributing Partner: UNT Libraries Government Documents Department