Search Results

International Trade Corridor Plan

Description: 2010 updated version of the International Trade Corridor Plan (ITCP), summarizing Texas' involvement in international trade.
Date: December 1, 2010
Creator: Texas. Department of Transportation.
Item Type: Text
Partner: UNT Libraries Government Documents Department

Texas Directory of Traffic Safety Professionals

Description: Book containing a list of Texas traffic safety specialists as of 1997. Includes their positions, contact information, and experience. There are three tabbed indexes that sort these individuals by their area of expertise, by name, and by agency. A final tabbed index includes a list of district safety specialists and a district map of Texas.
Date: August 1997
Creator: Rodriguez, Katherine; Davies, Becky & Seymore, Melody
Item Type: Book
Partner: UNT Libraries Government Documents Department

Texas Rail System Plan Summary

Description: Summary of current and proposed rail projects including infrastructure and capacity needs on the Texas rail system.
Date: 2005
Creator: Texas. Department of Transportation.
Item Type: Text
Partner: UNT Libraries Government Documents Department

Landside freight access to airports : findings and case studies

Description: "Texas' airports play a large role in the national and regional movement of goods by air. This includes goods moved within the state, across the country, and internationally to several continents. Most of this movement of goods is accomplished at the largest airports in Texas. However, as freight demand grows, a time will come when other airports will need to be utilized to accommodate additional demand. Properly planned transportation infrastructure is critical to ensure the vitality of an airport's freight operations. Time-sensitive air freight requires high levels of operational efficiency, which is generally optimized by taking steps to ensure both freight and passenger roadway access within the airport boundaries. Connections and design features of regional highways near the airports are no less important because they allow access to these important economic generators. This research report identifies the issues, barriers, physical bottlenecks (e.g., infrastructure needs), and solutions (including funding mechanisms) concerning landside access to airports in Texas. Inner city airports in large metropolitan areas sometimes face roadway geometric challenges, but typically have relatively low cargo activity levels. Shipping representatives stated that wayfinding is a key characteristic in providing good landside freight access to airports. Signage needs to be visible and informative in advance of necessary turns or lane changes. Efforts need to be taken to minimize comingling of freight and passenger traffic in areas near the passenger terminals. A variety of funding opportunities exist through public, private, and shared sources to improve access to airports."
Date: August 2010
Creator: Frawley, William E.; Borowiec, Jefferey D.; Protopapa, Annie A.; Morgan, Curtis Alan & Warner, Jeffery E.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Comparing Perceptions and Measures of Congestion

Description: This report attempts to connect the relationship between perceived congestion as determined by IBM's Commuter Pain Survey results and measured congestion from the Urban Mobility Report (UMR) in 10 cities across the United States.
Date: October 2012
Creator: Le, Minh; Turner, Shawn; Wikander, John & Poe, Chris
Item Type: Report
Partner: UNT Libraries Government Documents Department

Managed lane travelers: do they pay for travel as they claimed they would?

Description: "This study examined if travelers are paying for travel on managed lanes (MLs) as they indicated that they would in a 2008 survey. To achieve the objectives, an Internet-based stated preferences (SP) survey of Houston's Katy Freeway travelers was conducted in 2010. Three survey design methodologies-Db-efficent, random level generation, and adaptive random-were tested in this survey."
Date: May 2011
Creator: Devarasetty, Prem Chand; Shaw, W. Douglass & Burris, Mark
Item Type: Report
Partner: UNT Libraries Government Documents Department

Transportation for humanity: meeting the needs in the colonias

Description: "The goal of the research was to access the current transportation challenges facing residents of the colonias and determine the feasibility of vehicle procurement through donations or at-cost purchases from a variety of entities and/or individuals to support the program, and recommendations for alternative funding mechanisms to support the local community centers in their efforts to provide transportation to the colonias population."
Date: September 2010
Creator: Storey, Beverly B. & Jasek, Debbie
Item Type: Report
Partner: UNT Libraries Government Documents Department

Work zone positive protection guidelines

Description: "In this report the goal of the project was to develop implementation guidance that the Texas Department of Transportation (TxDOT) can use to make better decisions regarding when and where to use positive protection in work zones and when to consider exposure control and other traffic control measures that could improve work zone safety."
Date: May 2011
Creator: Ullman, Gerald L.; Iragavarapu, Vichika & Sun, Dahzi
Item Type: Report
Partner: UNT Libraries Government Documents Department

Performance measures for metropolitan planning organizations

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."
Date: April 2012
Creator: Moore, Devin; Ramni, Tara; Norboge, Nicolas & Turnbull, Katherine
Item Type: Report
Partner: UNT Libraries Government Documents Department

Impact of LRFD Specifications on Design of Texas Bridges: Volume 2: Prestressed Concrete Bridge Girder Design Examples

Description: This is a two-volume report that documents the findings of a TxDOT-sponsored research project to evaluate the impact of the Load and Resistance Factor (LRFD) Specifications on the design of typical Texas bridges as compared to the Standard Specifications.
Date: May 2006
Creator: Hueste, Mary Beth D.; Adil, Mahammed Safi Uddin; Adnan, Mohsin & Keating, Peter B.
Item Type: Text
Partner: UNT Libraries Government Documents Department

Impact of LRFD Specificaitons on Design of Texas Bridges: Volume 1: Parametric Study

Description: This is a two-volume report that documents the findings of a TxDOT-sponsored research project to evaluate the impact of the Load and Resistance Factor (LRFD) Specifications on the design of typical Texas bridges as compared to the Standard Specifications.
Date: September 2006
Creator: Hueste, Mary Beth D.; Adil, Mahammed Safi Uddin; Adnan, Mohsin & Keating, Peter B.
Item Type: Text
Partner: UNT Libraries Government Documents Department

Non-vital advance rail preemption of signalized intersections near highway-rail grade crossings

Description: The Texas Department of Transportation (TxDOT) primarily uses simultaneous preemption of traffic signals near highway-rail grade crossings to clear queued vehicles prior to the arrival of a train at the crossing. At some intersections, 20 seconds of advanced warning may not be sufficient to allow the traffic signal to clear pedestrians using the normal clearance intervals between phases. The research developed an alternative method (non-vital advance preemption) of ensuring adequate pedestrian clearance in the presence of an approaching train without interfering with the normal preemption sequence at the intersection or installing costly additional track circuitry needed to provide advance preemption. Two strategies were investigated to ensure pedestrian clearance time. The first utilizes a lower-level preemption sequence to guarantee full pedestrian clearance to a terminating phase before the traffic signal starts the preemption sequence. The second strategy uses the pedestrian-omit feature to prevent the controller from activating the pedestrian interval if there is not sufficient time in advance of the start of the preemption sequence to provide full pedestrian clearance.
Date: June 2007
Creator: Balke, Kevin N.; Engelbrecht, Roelof Johannes & Ruback, Leonard G.
Item Type: Report
Partner: UNT Libraries Government Documents Department

The Freight Shuttle System : advancing commercial readiness

Description: This report summarizes the results of research aimed at advancing the commercial readiness of a new hybrid mode of inter-modal freight transportation called the Freight Shuttle System (FSS).
Date: November 2010
Creator: Roop, Stephen S.; Ragab, Ayman H.; Olson, Leslie E.; Protopapa, Annie A.; Yager, Michael A.; Morgan, Curtis Alan et al.
Item Type: Report
Partner: UNT Libraries Government Documents Department

An eCertificate Program in Transportation Planning: Final Report

Description: This report researches developed proposals to extend the delivery of the recently developed Graduate Certificate in Transportation Planning at Texas A & M University (TAMU) to a wider audience via distance education (online or eCertificate).
Date: August 2012
Creator: Ndubisi, Foster & Joh, Kenneth
Item Type: Report
Partner: UNT Libraries Government Documents Department

Pavement preservation and system optimization task force

Description: "This report provides: an overview of a proposed three-tier system, preliminary results from a state department of transportation (DOT) survey, initial estimates of required funding, ideas of UTP Category 1 Formula, and an overview of the status of mobility."
Date: January 2011
Creator: Lomax, Timothy J.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Development of a MASH TL-2 guardrail-to-bridge rail transition compatible with 31-inch guardrail

Description: The TxDOT Design Division is in the process of developing new guardrail standards that comply with the AASHTO Manual for Assessing Safety Hardware (MASH). The new guardrail system will provide increased capacity and improved impact performance relative to the current design. A key feature of the new system is an increased in rail mounting height from 27 inches to 31 inches. TxDOT's current TL-2 metal beam transition is 27 inches tall and is not compatible with the new 31 inch guardrail system. While the high-speed, nested thrie beam transition system meets MASH guidelines and is compatible with a 31-inch guardrail, it would be cost-prohibitive to use it on all roadways. The objective of this research was to develop a transition that is suitable for use on lower speed roadways, less expensive and complex than the current high-speed (i.e., TL-3) transition design, and is compatible with a 31-inch guardrail. A low-cost guardrail-to-bridge rail transition was successfully developed and tested under MASH Test Level 2 conditions. It is compatible with a 31-inch guardrail and can connect to rigid concrete bridge rails. It is considered suitable for implementation on roadways that have traffic conditions appropriate for the use of TL-2 safety hardware. Use of this system provides significant savings in material and installation cost compared to the high speed transition system.
Date: December 2011
Creator: Bligh, Roger P.; Arrington, Dusty R. & Menges, Wanda L.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Catalog of effective treatments to improve driver and worker safety at short-term work zones

Description: "This report catalogs several devices that were found to be effective at improving driver and worker safety at short-term work zones. The services include are: fluorescent yellow-green worker vests and hard hat covers, portable variable message signs, speed display trailers, fluorescent orange roll-up signs, radar drones, and retroreflective magnetic strips for work vehicles. The catalog provides a brief description of each treatment, along with a summary of the treatment's effectiveness, and recommendations for its use at short-term work zones."
Date: January 2001
Creator: Fontaine, Michael D. & Hawkins, H. Gene
Item Type: Book
Partner: UNT Libraries Government Documents Department

TxDOT uses of real-time commercial traffic data : opportunity matrix

Description: Based on a TxDOT survey, a review of other state DOTs, and researcher understanding of Intelligent Transportation System (ITS) needs, the Texas Transportation Institute (TTI) team developed a comprehensive list of opportunities for TxDOT to consider pertaining to future use of private sector (PS) data. Specific opportunities for applying private data were reviewed in light of accuracy of the data, coverage areas, data availability, cost, and control of the data stream.
Date: January 2012
Creator: Middleton, Dan; Brydia, Robert; Kraus, Edgar; Cheu, Kelvin; Rajbhandari, Rajat, 1973-; Songchitruksa, Praprut et al.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Rapid field detection of sulfate and organic content in soils : technical report

Description: Report regarding efforts to identify a technique to map the sulfate content of soil over a large area to a depth of 3 to 4 feet. Two devices are noted: an electromagnetic device called EM-38 and a soil conductivity device called VERIS 315.
Date: October 2010
Creator: Harvey, Omar; Sebesta, Stephen & Harris, Pat
Item Type: Report
Partner: UNT Libraries Government Documents Department