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0-6491, Non-destructive Evaluation of In-Service Concrete Structures Affected by Alkali-Silica Reaction (ASR) or Delayed Ettringite Formation (DEF)

1.

2013 ... Research Performed by: Center for Transportation Research; Research Supervisor: Kevin Folliard; Researchers: Eric R. Giannini [and five others] · "Alkali-silica reaction (ASR) and delayed ettringite formation (DEF) are expansive reactions that can lead to the premature deterioration of concrete structures. Both have been

6491 PSR [CTR] ... 0-6491-S ... Project Summary Report

Full-text Link:
http://library.ctr.utexas.edu/hostedpdfs/txdot/psr/0-6491-s.pdf
150 KB

______________________________________________________________________________________________________

Non-Destructive Evaluation of In-Service Concrete Structures Affected by Alkali-Silica Reaction (ASR) or Delayed Ettringite Formation (DEF). Final Report, Part I

2.

2013 ... Eric R. Giannini [and six others] · Alkali-silica reaction (ASR) and delayed ettringite formation (DEF) are expansive reactions that can lead to the premature deterioration of concrete structures. Both have been implicated in the deterioration of numerous structures around the world, including many transportation structures in Texas.

6491-1 pt.1 [CTR] ... FHWA/TX-13/0-6491-1 [Part 1]

Full-text Link:
http://library.ctr.utexas.edu/ctr-publications/0-6491-1.pdf
5.2 MB

______________________________________________________________________________________________________

0-6487, Development of a Performance Measurement-Based Methodology to Objectively Compare Operational Improvements with Capacity Additions

3.

2013 ... Research Performed by: Center for Transportation Research; Research Supervisor: Dr. Kara Kockelman; Researchers: Stephen Boyles, Daniel Fagnant, Brice Nichols · "Preliminary project analysis and comparison are important for agencies in funding considerations and anticipating network impacts. Agencies are presented with

6487 PSR [CTR] ... 0-6487-S ... Project Summary Report

Full-text Link:
http://library.ctr.utexas.edu/hostedpdfs/txdot/psr/6487.pdf
161 KB

______________________________________________________________________________________________________

User's Guide for PET: Project Evaluation Toolkit: A Sketch-Planning Toolkit for Evaluating Highway Transportation Projects, Version 2.0

4.

2013 ... Dr. Kara Kockelman [and four others] · "Transportation planning involves evaluating the congestion, safety, emissions, and other impacts of large-scale network improvements and policy implementations. This document is a User's Guide for the Project Evaluation Toolkit (PET), a sketch planning toolkit developed for

6487-P1 [CTR] ... 0-6487-P1 / 5-6235-01-P1; Product 5-6235-01-P2; Product 5-6235-01-P3; Product 5-

Full-text Link:
http://library.ctr.utexas.edu/ctr-publications/PETguide.pdf
3.75 MB

______________________________________________________________________________________________________

A Project Evaluation Toolkit (PET) for Abstracted Networks: Final Report

5.

2013 ... Kara Kockelman, Dan Fagnant, Brice Nichols, Steve Boyles · This report summarizes research for TxDOT Project No. 0-6487, which enhanced and expanded the open-source Project Evaluation Toolkit (PET) to evaluate operational strategies for transport project (and policy) impact evaluation. Such strategies include advanced traveler

6487-1 [CTR] ... FHWA/TX-2013/0-6487-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6487_1.pdf
1.8 MB

______________________________________________________________________________________________________

CAM Mix Design with Local Materials in Texas

6.

2011 ... RS: Jorge Prozzi; Researchers: Prasad Buddhavarapu, Andre de Fortier Smit, Maghsoud Tahmoressi · Laboratory testing of aggregates from 14 quarries in Texas was done to characterize the classification, aggregate imaging system (AIMS) and filler properties of aggregates. Current performance criteria in terms of Hamburg

6435-s [CTR] ... PSR 0-6435 ... Project Summary Report, 0-6435

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/6435.pdf
107 KB

______________________________________________________________________________________________________

CAM Mix Design with Local Aggregates

7.

2011 ... Andre de Fortier Smit, Sivaram Prasad, Jorge Prozzi, Maghsoud Tahmoressi · This study provides revised mix design recommendations for crack attenuating mixtures (CAM) with local aggregates. The use of lower quality aggregates is cost beneficial but limits the application of these mixes in terms of reduced performance. Aggregate

6435-1 [CTR] ... FHWA/TX-12/0-6435-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6435_1.pdf
24.3 MB

______________________________________________________________________________________________________

0-6416, Shear Cracking in Inverted-T Straddle Bents

8.

2013 ... Research Performed by: Center for Transportation Research; Research Supervisor: Oguzhan Bayrak; Researchers: Nancy Larson [and three others] · "Diagonal web cracking of inverted-T straddle bent caps has been reported with increasing frequency in Texas, triggering concerns about current design procedures for such

6416 PSR [CTR] ... 0-6416-S ... Project Summary Report

Full-text Link:
http://library.ctr.utexas.edu/hostedpdfs/txdot/psr/0-6416-s.pdf
167 KB

______________________________________________________________________________________________________

Strength and Serviceability Design of Reinforced Concrete Inverted-T Beams

9.

2013 ... Nancy Larson [and four others] · Significant diagonal cracking in reinforced concrete inverted-T straddle bent caps has been reported throughout the State of Texas. Many of the distressed structures were recently constructed and have generally been in service for less than two decades. The unique nature of the problem

6416-1 [CTR] ... FHWA/TX-13/0-6416-1

Full-text Link:
http://library.ctr.utexas.edu/ctr-publications/0-6416-1.pdf
9.1 MB

______________________________________________________________________________________________________

Development of Guidelines for Implementation of Roundabouts in Texas

10.

2012 ... Andrew Holick, TxDOT Bryan District · Andrew Holick, Roadway Design Engineer at TxDOT's Bryan District, discusses RTI Research Project 0-6414 will create a set of roundabout guidelines specific to Texas and readily accessible to TxDOT personnel. The roundabout guidelines for Texas should incorporate past successful

6414-VSR [CTR] ... RTI VSR 0-6414 ... Best Practices Video Summary Report

Full-text Link:
http://youtu.be/Nj61DCyPg3w
YouTube video

______________________________________________________________________________________________________

Development of Guidelines for Implementation of Roundabouts in Texas

11.

2011 ... RS: S. Travis Waller; Researchers: Jenifer Duthie [and three others] · Although roundabouts have now been implemented in many parts of the U.S., very few have been built in Texas. Therefore, this research effort was designed to develop guidelines for implementing them in Texas. The desired guidelines were to suggest best

6414-s [CTR] ... PSR 0-6414 ... Project Summary Report, 0-6414

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/6414.pdf
52 KB

______________________________________________________________________________________________________

Pilot Workshop and Materials (CD ROM)

12.

2011 ... by Jennifer Duthie and Travis Waller · This CD-ROM contains the Microsoft PowerPoint (.pptx) file containing a 215-slide presentation for the "Roundabout Evaluation and Design Workshop" prepared by CTR and Kittelson & Associates, Inc. for the Texas Department of Transportation. The objectives of the workshop were to

6414-P3 [CTR] ... Product 0-6414-P3

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6414_p3.pdf
11.7 MB

______________________________________________________________________________________________________

Texas Roundabout Guidelines

13.

2011 ... Alison Mills [and three others] · "Circular intersection forms have been part of the transportation system in the United States since at least 1905. Their widespread usage decreased after the mid-1950s due to high crash experience and problems with congestion. Therefore, the modern roundabout was developed to improve the safety

6414-P1 [CTR] ... Product 0-6414-P1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6414_P1.pdf
11 MB

______________________________________________________________________________________________________

Texas Roundabout Guidelines: Final Report

14.

2011 ... Authors: Alison Mills [and five others] · Although roundabouts have now been implemented in many parts of the U.S., very few have been built in Texas. This report contains best practices for choosing appropriate locations and design concepts for Texas roundabouts. This research effort is comprised of the following components:

6414-1 [CTR] ... FHWA/TX-08/0-6414-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6414_1.pdf
12.6 MB

______________________________________________________________________________________________________

In-Depth Analysis of the JACK Model

15.

2009 ... Khali R. Persad [and six others] · Recently, as part of a comprehensive analysis of budget and funding options, a TxDOT special task force has examined the agency's current financial forecasting methods and has developed a model designed to estimate future State Highway Fund revenues and expenditures. The Joint Analysis

6395-P3 [CTR] ... Product 0-6395-P3

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6395_P3.pdf
3.7 MB

______________________________________________________________________________________________________

Communications Materials on Methods of Development of Revenue and Cost Estimates to Non-Technical Audiences

16.

2009 ... Khali Persad [and six others] · This CDROM includes PDFs of presentations on the following topics: "TXDOT Revenue and Expenditure Trends;" "Examine Highway Fund Diversions, & Benchmark Texas Vehicle Registration Fees;" "Evaluation of the JACK Model;" "Future highway construction cost trends;" "Fuel Efficiency

6395-CT-P2 [CTR] ... Product 0-6395-CT-P2

Full-text Link:
Online resource not available.

______________________________________________________________________________________________________

Evaluation of TxDOT's J.A.C.K. Model for Revenue and Expenditure Projections

17.

2009 ... Khali R. Persad [and six others] · This research report documents work conducted by the Center for Transportation (CTR) at The University of Texas at Austin in analyzing the Joint Analysis using the Combined Knowledge (J.A.C.K.) program. This program was developed by the Texas Department of Transportation (TxDOT)

6395-CT-1 [CTR] ... FHWA/TX-09/0-6395-CT-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6395_CT_1.pdf
2.6 MB

______________________________________________________________________________________________________

Innovating Contracting Strategies for Transportation Maintenance Outsourcing (PowerPoint)

18.

2010 ... Juan Chen and Cindy Menches · Research Motivation: TxDOT is expanding maintenance outsourcing as a result of budget and manpower restraints; TxDOT wants to identify efficient contracting strategies that might be implemented to help them achieve their maintenance goals. Research Objectives: Identify innovative maintenance

6388-P2 [CTR] ... Product 0-6388-P2

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6388_P2.pdf
2.56 MB

______________________________________________________________________________________________________

Synthesis of Innovative Contracting Strategies Used for Routine and Preventive Maintenance Contracts

19.

2010 ... Cindy L. Menches, Nabeel Khwaja, Juan Chen · This document can be used by Maintenance Division and district personnel at all levels to encourage implementation of innovative methods for outsourcing more extensive maintenance activities within TxDOT. These research objectives were accomplished through the following research

6388-P1 [CTR] ... Product 0-6388-P1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6388_P1.pdf
1.3 MB

______________________________________________________________________________________________________

Synthesis of Innovative Contracting Strategies for Routine and Preventive Maintenance Contracts

20.

2010 ... Cindy L. Menches, Nabeel Khwaja, Juan Chen · TxDOT is faced with a need to expand their maintenance contracted services due to shortage of in-house personnel and expertise. As a result, TxDOT had a need to investigate maintenance contracting strategies to identify those efficient strategies that might be implemented to

6388-1 [CTR] ... FHWA/TX-10/0-6388-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6388_1.pdf
1.6 MB

______________________________________________________________________________________________________

Synthesis Study on Innovative Contract Techniques for Routine and Preventive Maintenance Contracts

21.

2009 ... Cindy L. Menches, Juan Chen and Nabeel Khwaja · For the past decades, shortages of in-house resources -- including expertise, equipment, and experienced personnel -- have caused many state highway agencies to outsource a significant amount of their maintenance work. Some states have experimented with innovative

6388 [CTR] ... PSR 0-6388 ... Project Summary Report, 0-6388

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/6388.pdf

______________________________________________________________________________________________________

0-6374, Effects of New Prestress Loss Predictions on TxDOT Bridges

22.

2013 ... Research Performed by: Center for Transportation Research; Research Supervisor: Oguzhan Bayrak; Researchers: David Garber [and four others] · "In 2008, TxDOT initiated Project 0-6374 to investigate prestress losses in pretensioned concrete girders. The prestress loss estimates in the AASHTO LRFD Bridge Design

6374 PSR [CTR] ... 0-6374-S ... Project Summary Report

Full-text Link:
http://library.ctr.utexas.edu/hostedpdfs/txdot/psr/6374.pdf
168 KB

______________________________________________________________________________________________________

Effect of New Prestress Loss Estimates on Pretensioned Concrete Bridge Girder Design

23.

2013 ... David Garber [and four others] · In 2008, TxDOT initiated Project 0-6374 to investigate prestress losses in pretensioned concrete girders. The prestress loss estimates in the AASHTO LRFD Bridge Design Specifications had been recalibrated in 2005 to be more accurate for “high-strength [conventional] concrete.” Greater accuracy

6374-2 [CTR] ... FHWA/TX-12/0-6374-2

Full-text Link:
http://library.ctr.utexas.edu/ctr-publications/0-6374-2.pdf
11.9 MB

______________________________________________________________________________________________________

Monitoring of Experimental Sections Using a Pavement Database

24.

2011 ... RS: Jorge Alberto Prozzi; Researchers: Jose Pablo Aguiar-Moya and Andre de Fortier Smit · The goal of this project was to develop a database of experimental pavement sections constructed in Texas. It provided for collection of performance data of these sections to determine the types of experiments that have been successful

6357-PSR [CTR] ... PSR 0-6357-S ... Project Summary Report, 0-6357

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/0-6357.pdf

______________________________________________________________________________________________________

Monitoring of Experimental Sections Using a Web-based Database

25.

2012 ... Jose Pablo Aguiar-Moya, Andre de Fortier Smit, Jorge A. Prozzi · In recent years, a number of databases have been developed as part of TxDOT’s Research Program for a diversity of goals and objectives. However, there is no one database that collects and stores lessons learned from long-term field application of different technologies

6357-1 [CTR] ... FHWA/TX-11/0-6357-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6357_1.pdf
3.7 MB

______________________________________________________________________________________________________

0-6348, Bridge Deck Reinforcement and PCP Cracking

26.

2013 ... Research Performed by: Center for Transportation Research; Research Supervisor: Richard E. Klingner; Researchers: Oguzhan Bayrak [and eight others] · "Bridge decks composed of precast, pre-stressed panels (PCPs) overlain by cast-in-place (CIP) are popular in many states of the United States, including Texas...

6348 PSR [CTR] ... 0-6348-S ... Project Summary Report

Full-text Link:
http://library.ctr.utexas.edu/hostedpdfs/txdot/psr/6348.pdf
689 KB

______________________________________________________________________________________________________

Bridge Deck Reinforcement and PCP Cracking: Final Report

27.

2013 ... Oghuzan Bayrak [and nine others] · Bridge decks composed of precast, prestressed panels (PCPs) overlain by cast-in-place (CIP) are popular in many states, including Texas. Optimization of top-mat reinforcement and reduction of collinear panel cracking were addressed in this project. Longitudinal top-mat reinforcement was

6348-2 [CTR] ... FHWA/TX-12/0-6348-2

Full-text Link:
http://library.ctr.utexas.edu/ctr-publications/0-6348-2.pdf
14.2 MB

______________________________________________________________________________________________________

PCP Cracking and Bridge Deck Reinforcement: An Interim Report

28.

2010 ... Richard E. Klingner, Oguzhan Bayrak, James O. Jirsa and Shih-ho Chao · TxDOT Project 0-6348 “Controlling Cracking in Prestressed Concrete Panels and Optimizing Bridge Deck Reinforcing Steel” started on September 1, 2008 and is scheduled to end on August 31, 2012. The project is proceeding on schedule. This report

6348-1 [CTR] ... FHWA/TX-11/0-6348-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6348_1.pdf
1 MB

______________________________________________________________________________________________________

Development of Predictive Model for Bridge Deck Cracking and Strength Development

29.

[2012] ... [Research Performed by: Center for Transportation Research; Research Supervisor: Dr. Kevin Folliard; Researchers: Phil Pesek and three others] · "While early-age cracking will not cause failure of a bridge deck system independently, the penetration of deleterious substances through the early-age cracks into the bridge deck

6332 PSR [CTR] ... 0-6332-S ... Project Summary Report

Full-text Link:
http://library.ctr.utexas.edu/hostedpdfs/txdot/psr/6332.pdf

______________________________________________________________________________________________________

Concrete Works Source Code

30.

2010 ... Kevin Folliard and Kyle Riding · The ConcreteWorks suite of software includes ConcreteWorks and MixProportions. The ConcreteWorks program currently can calculate mass concrete temperature development, ASR Susceptability, and DEF susceptability. ConcreteWorks has six built in mass concrete member temperature

6332-P3 [CTR] ... Product 0-6332-P3

Full-text Link:
No online resource supplied by publisher

______________________________________________________________________________________________________

Phase 1 Report on the Development of Predictive Model for Bridge Deck Cracking and Strength Development

31.

2009 ... Kevin Folliard [and four others] · Early-age cracking, typically caused by drying shrinkage (and often coupled with autogenous and thermal shrinkage), can have several detrimental effects on long-term behavior and durability. Cracking can also provide ingress of water that can drive chemical reactions, such as alkali-silica reaction

6332-1 [CTR] ... 0-6332-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6332_1.pdf
1.1 MB

______________________________________________________________________________________________________

Shear Strengthening of Large Reinforced Concrete Elements Using Carbon Fiber Reinforced Polymer

32.

2012 ... [Keith Ramsey, TxDOT BRG Division-Austin] · Keith Ramsey, TxDOT BRG Division-Austin Director of Field Operations discusses RTI Research Project 0-6306 which demonstrated the feasibility of using carbon fiber reinforced polymer (CFRP) for shear strengthening of large bridge girders or supporting elements. · "Published on

6306-VSR [CTR] ... RTI VSR 0-6306 ... Best Practices Video Summary Report

Full-text Link:
http://youtu.be/b4sVzPktjn0
YouTube video

______________________________________________________________________________________________________

Shear Strengthening of Large Reinforced Concrete Elements Using Carbon Fiber Reinforced Polymer (CFRP) Sheets

33.

2011 ... RS: James Jirsa; Researchers: Jose Garcia [and five others] · The objective of the study was to demonstrate the feasibility of using anchored carbon fiber reinforced polymers (CFRP) for shear strengthening of large bridge girders or supporting elements. Particularly, the external U-wrap application of CFRP sheets anchored

6306-s [CTR] ... PSR 0-6306 ... Project Summary Report, 0-6306

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/6306.pdf

______________________________________________________________________________________________________

Shear Strengthening of Reinforced and Prestressed Concrete Beams Using Carbon Fiber Reinforced Polymer (CFRP) Sheets and Anchors

34.

2012 ... Yungon Kim [and six others] · The ability to quickly apply carbon fiber reinforced polymer (CFRP) materials with a minimum of disruption to the use of a structure and with virtually no change in the geometry or weight of the element makes CFRP a viable and attractive material for strengthening existing elements. However,

6306-1 [CTR] ... FHWA/TX-12/0-6306-1; Product 0-6306-P1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6306_1.pdf
20 MB

______________________________________________________________________________________________________

Freight Planning Factors Impacting Texas Commodity Flows

35.

2011 ... RS: C. Michael Walton; Researchers: Chandra Bhat, Migdalia Carrion, Nathan Hutson, Ken Perrine, Jolanda Prozzi, Dan Seedah · Intermodal and freight concerns have thus received increasing attention in the wake of globalization, increasing congestion, and changes in the logistics structure of shippers. Both the Intermodal Surface

6297-s [CTR] ... PSR 0-6297 ... Project Summary Report, 0-6297

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/6297.pdf

______________________________________________________________________________________________________

Multimodal Freight Database and User Manual

36.

2012 ... By: Dan Seedah [and four others] · "The Multimodal Freight Database is a one-stop shop for Texas freight data. It extracts and consolidates relevant freight data variables from major public databases. Commodity codes are mapped across databases thus providing a user-friendly interface for data search, comparison, and analysis. It

6297-01-P3 [CTR] ... Product 5-6297-01-P3; Product 0-6297-P3

Full-text Link:
http://library.ctr.utexas.edu/digitized/products/0-6297-P3_UserManual.pdf
1.2 MB User Manual

______________________________________________________________________________________________________

Relational Multimodal Freight Database Workshops

37.

2012 ... [Jolanda Prozzi and Migdalia Carrion] · "The objectives of this Implementation Project are to disseminate information about the Multimodal Freight Database (MFD) by hosting six workshops (Task 1), hosting a webinar to demonstrate the MFD to selected FHWA freight leaders (Task 2), and updating the MFD given the feedback received

6297-01-P2 [CTR] ... Product 5-6297-01-P2

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/5_6297_01_P2.pdf
1.6 MB

______________________________________________________________________________________________________

Relational Multimodal Freight Database Webinar

38.

2012 ... [Mr. Kirk Fauver (Statewide Planning Engineer, FHWA) and Ms. Jolanda Prozzi (Assistant Director, CTR)] · "Implementation Project 5-6297-01, entitled Multimodal Freight Database, extends the work that has been conducted as part of TxDOT Research Project 0-6297 [Freight Planning Factors Impacting Texas Commodity Flows].

6297-01-P1 [CTR] ... Product 5-6297-01-P1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/5_6297_01_P1.pdf
128 KB

______________________________________________________________________________________________________

The Multimodal Freight Database: A Potential User Perspective

39.

2012 ... Migdalia Carrion [and three others] · As part of TxDOT (Texas Department of Transportation) Project 0-6297 entitled “Freight Planning Factors Impacting Texas Commodity Flows,” the Center for Transportation Research (CTR) team focused on understanding the critical factors that influence freight planning in Texas. All U.S. states are

6297-01-1 [CTR] ... FHWA/TX-12/5-6297-01-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/5_6297_01_1.pdf
88 KB

______________________________________________________________________________________________________

Freight Planning for Texas: Expanding the Dialogue

40.

2011 ... Jolanda Prozzi [and six others] · Efficient, reliable, and safe freight transportation is critical to the economic prosperity of any region. An efficient multimodal and intermodal transportation system reduces transportation and supply chain transaction costs and increases connectivity, reliability, and accessibility to local

6297-1 [CTR] ... FHWA/TX-11/0-6297-1; Product 0-6297-P3

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6297_1.pdf ·
http://library.ctr.utexas.edu/digitized/CTR/0-6297-1_appendixA.pdf ·
http://library.ctr.utexas.edu/digitized/CTR/0-6297-1_appendixB.pdf ·

______________________________________________________________________________________________________

Online Texas Flexible Pavement Database in MS Access (25 sections)

41.

2010 ... Jorge Prozzi · CONTENTS: 0-6275-P1.mdb · Publ. by: University of Texas at Austin. Center for Transportation Research (CTR)/University of Texas at Tyler (UT-Tyler).

6275-P1 [CTR] ... Product 0-6275-P1

Full-text Link:
http://library.ctr.utexas.edu/digitized/products/0-6275-P1.zip
621 KB ZIP file = 2.9 MB MS Access (.mdb) database

______________________________________________________________________________________________________

Project Report on the Continued Development and Analysis of the Flexible Pavements Database

42.

2012 ... Ambarish Banerjee [and four others] · The original scope of TxDOT Research Project 0-6275 included continuing the development of the Texas Flexible Pavement database (TFPD) developed as part of Research Project 0-5513. The objective of 0-5513 was to deliver a database capable of hosting the data necessary for new pavement

6275-1 [CTR] ... FHWA/TX-11/0-6275-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6275_1.pdf
1.3 MB

______________________________________________________________________________________________________

0-6255, Achieving Adequate Friction and Predicting Skid Values in Class P Concrete with Manufactured Fine Aggregates

43.

2013 ... Research Performed by: Center for Transportation Research; Research Supervisor: David W. Fowler; Researchers: Marc Rached, David P. Whitney · "The Dallas and Fort Worth Districts use large quantities of concrete for high-traffic roadways; however, the sources of natural fine aggregates meeting the Texas Department of

6255 PSR [CTR] ... 0-6255 -S ... Project Summary Report

Full-text Link:
http://library.ctr.utexas.edu/hostedpdfs/txdot/psr/0-6255-s.pdf

______________________________________________________________________________________________________

Recommendations for Achieving Adequate Surface Friction and Predicting Skid Values in Class P Concrete Containing Manufactured Fine Aggregates

44.

[2012], ©2011 ... Marc Rached, David W. Fowler, David P. Whitney · This report summarizes findings and recommendations regarding the usage of manufactured fine aggregates in portland cement concrete pavement (PCCP). The supporting research included both field and laboratory testing of aggregates and concrete properties

6255-P4 [CTR] ... FHWA/TX-11/0-6255-P4

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6255_p4.pdf
1.7 MB

______________________________________________________________________________________________________

Guidelines for Proportioning Class P Concrete Containing Manufactured Fine Aggregates & Mixture Proportioning Spreadsheet

45.

[2013] ... by David Whitney, David W. Fowler · "This document provides guidance on using manufactured fine aggregates (MFAs) in class P concrete. The goal is to achieve the desired properties of concrete (workability, strength, and durability) while using MFAs and minimizing paste content. These guidelines present a method for

6255-P3 [CTR] ... Product 0-6255-P3

Full-text Link:
http://library.ctr.utexas.edu/ctr-publications/0-6255-p3.zip
861 KB

______________________________________________________________________________________________________

Mixture Proportioning Worksheet for Proportioning Class P Concrete Containing MFA

46.

2010 ... by Mark Rached, David W. Fowler, David Whitney · The guidelines described in this document aim at providing guidance on how manufactured fine aggregates (MFAs) can be used in Class P concrete. The goal is achieve the desired properties of concrete (workability, strength, and durability) while using MFAs and minimizing

6255-P2 [CTR] ... Product 0-6255-P2

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6255_P2.pdf ·
http://www.utexas.edu/research/ctr/pdf_reports/0_6255_P2_pro_wksheet.xls
616 KB PDF+262 KB spreadsheet

______________________________________________________________________________________________________

Preliminary Recommendations for Achieving Adequate Surface Friction in Class P Concrete Containing Manufactured Fine Aggregates

47.

2012 ... Marc Rached, David W. Fowler, David P. Whitney · This report summarizes findings and recommendations regarding the usage of manufactured fine aggregates in portland cement concrete pavement (PCCP). The supporting research included both field and laboratory testing of aggregates and concrete properties that relate to

6255-P1 [CTR] ... FHWA/TX-11/0-6255-P1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6255_p1.pdf
686 KB

______________________________________________________________________________________________________

Use of Manufactured Sands for Concrete Pavement

48.

2013 ... David Whitney, Dr. David W. Fowler, Marc Rached · Manufactured fine aggregates are a product created when rocks are crushed using a mechanical crusher. With the depletion of sources of natural sands, the usage of manufactured fine aggregates has increased. Manufactured fine aggregates have properties that differ from natural

6255-1 [CTR] ... FHWA/TX-13/0-6255-1

Full-text Link:
http://library.ctr.utexas.edu/ctr-publications/0-6255-1.pdf
4.3 MB

______________________________________________________________________________________________________

Sketch Planning Techniques to Assess Regional Air Quality Impacts of Congestion Mitigation Strategies

49.

2011 ... RS: Kara Kockelman; Researchers: Daniel Fagnant [and four others] · A quick-response project-planning tool can be extremely valuable in anticipating -- and comparing -- the air quality, emissions, congestion, safety, and other impacts of large-scale network improvements and policy implementations. | The research team first surveyed

6235 PSR [CTR] ... PSR 0-6235-S ... Project Summary Report, 0-6235

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/6235.pdf
47.3 KB

______________________________________________________________________________________________________

Comprehensive Evaluation of Transportation Projects: A Toolkit for Sketch Planning

50.

2010 ... Kara Kockelman [and five others] · A quick-response project-planning tool can be extremely valuable in anticipating the congestion, safety, emissions, and other impacts of large-scale network improvements and policy implementations. This report identifies the advantages and limitations of existing methods and toolkits for sketch-

6235-1/P1 [CTR] ... FHWA/TX-11/0-6235-1; Product 0-6235-P1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6235_1.pdf
917 KB

______________________________________________________________________________________________________

Project Evaluation Toolkit (PET) for Abstracted Networks

51.

2013 ... Kara Kockelman [and three others] · This report summarizes the research completed for TxDOT Project No. 5-6235-01 and discusses the implications and future applications of the work. This project extended the capabilities of the Project Evaluation Toolkit (PET), while introducing the software to a large network of potential

6235-01-1 [CTR] ... FHWA/TX-13/5-6235-01-1

Full-text Link:
http://library.ctr.utexas.edu/ctr-publications/5-6235-01-1.pdf
764 KB

______________________________________________________________________________________________________

Tour-Based Model Development for TxDOT: Evaluation and Transition Steps

52.

2009 ... Ipek N. Sener [and three others] · The Texas Department of Transportation (TxDOT), in conjunction with the metropolitan planning organizations (MPOs) under its purview, oversees the travel demand model development and implementation for most of the urban areas in Texas. In these urban areas, a package of computer programs

6210-2 [CTR] ... FHWA/TX-10/0-6210-2

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6210_2.pdf ·
http://library.ctr.utexas.edu/digitized/zipfiles/0-6210-2_cdrom.zip
1.1 MB pdf; 9.7 MB zip

______________________________________________________________________________________________________

Tour-Based Model Development for TxDOT: Implementation Steps for the Tour-based Model Design Option and the Data Needs

53.

2009 ... Nazneen Ferdous [and three others] · Travel demand modeling, in recent years, has seen a paradigm shift with an emphasis on analyzing travel at the individual level rather than using direct statistical projections of aggregate travel demand as in the trip-based approach. Specifically, several metropolitan planning organizations

6210-1 [CTR] ... FHWA/TX-10/0-6210-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6210_1.pdf
1.1 MB

______________________________________________________________________________________________________

Adding Tour-Based Modeling to TxDOT’s Travel Modeling Framework

54.

2009 ... Chandra R. Bhat [and three others] · The Texas Department of Transportation (TxDOT), in conjunction with the metropolitan planning organizations (MPOs) under its purview, oversees the travel demand model development and implementation for most of the urban areas in Texas. In these urban areas, a package of

6210 [CTR] ... PSR 0-6210 ... Project Summary Report, 0-6210

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/6210.pdf

______________________________________________________________________________________________________

Bacteria Levels in Discharges from Road Right-of-Way

55.

2011 ... RS: Michael E. Barrett; Researchers: Randall Charbeneau [and three others] · This research project is designed to provide TxDOT with the information to respond to regulatory requirements by evaluating the contribution of bacteria from TxDOT facilities to two diverse systems in Central Texas: the Guadalupe River in

6147-PSR [CTR] ... PSR 0-6147-S ... Project Summary Report, 0-6147

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/6147.pdf

______________________________________________________________________________________________________

Longer Combination Vehicles & Road Trains for Texas?

56.

2011 ... RS: C. Michael Walton, CTR; Researchers: Robert Harrison [and five others] · Texas faces a highway funding shortfall and increasing freight demand, which translates to fewer miles of new highway and higher levels of congestion. One solution is to move the additional freight on more productive trucks on key routes on the current

6095-PSR [CTR] ... PSR 0-6095-S ... Project Summary Report, 0-6095

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/0-6095.pdf

______________________________________________________________________________________________________

Potential Use of Longer Combination Vehicles in Texas: Second-Year Report

57.

2010 ... C.M Walton [and three others, CTR], Angela Jannini Weissman [and four others, UTSA] · The second year of this study focused on Texas highway corridors carrying heavy truck volumes and examined LCV operations—particularly infrastructure costs—to identify where the highest economic advantage from LCV

6095-2 [CTR] ... FHWA/TX-11 /0-6095-2

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6095_2.pdf
1.7 MB

______________________________________________________________________________________________________

Potential Use of Longer Combination Vehicles in Texas: First Year Report

58.

2010 ... C.M. Walton [and nine others] · Trucking remains the only major freight mode not to benefit from increases in size and weight regulations since 1982. The need for more productive trucks both longer (LTL) and heavier (TL) is growing with economic activity, rising fuel costs and concerns over environmental impacts from

6095-1 [CTR] ... FHWA/TX-10/0-6095-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6095_1.pdf ·
http://www.utexas.edu/research/ctr/pdf_reports/0_6095_1Workshop.pdf
2.2 MB, 2.3 MB

______________________________________________________________________________________________________

Soil Testing Using Centrifuge Technology

59.

2008 ... RS: Jorge G. Zornberg; Researchers: Jeffrey Kuhn and Michael Plaisted · The goal of this project is to use centrifuge technology to properly characterize the swelling potential of expansive clays. Expansive clays can be found across the entire state of Texas, and constitute a significant problem to the Texas Department of

6048 PSR [CTR] ... PSR 0-6048-S ... Project Summary Report, 0-6048

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/6048.pdf

______________________________________________________________________________________________________

Swelling of Highly Plastic Clays under Centrifuge Loading

60.

2013 ... Jorge Zornberg [and three others] · This document provides step-by-step testing procedures from Project 5-6048-01. "The goal of this project is to use centrifuge technology to properly characterize the swelling potential of expansive clays." --Research Project 0-6048 PSR. · "February 2013; Published May 2013" | Also published as

6048-01-P2 [CTR] ... Product 5-6048-01-P2

Full-text Link:
http://library.ctr.utexas.edu/ctr-publications/5-6048-01-P2.pdf
312 KB

______________________________________________________________________________________________________

Implementation of Centrifuge Testing for Swelling Properties of Highly Plastic Clays

61.

2013 ... Jorge G. Zornberg [and three others] · A novel centrifuge-testing device was developed for characterization of expansive soils, which are the source of major pavement design and maintenance problems across the state. Specifically, testing protocols were developed for use of a small centrifuge device to provide

6048-01-1 [CTR] ... FHWA/TX-13/5-6048-01-1

Full-text Link:
http://library.ctr.utexas.edu/ctr-publications/5-6048-01-1.pdf
2.1 MB

______________________________________________________________________________________________________

Characterization of the Swelling Properties of Highly Plastic Clays Using Centrifuge Technology

62.

2009 ... Jorge G. Zornberg, Jeffrey Kuhn and Michael Plaisted · A feasibility study was performed to determine the potential advantages of characterizing the swelling properties of highly plastic clay using a geotechnical centrifuge. This study consisted of an experimental program involving a series of tests in a small and large centrifuge in which

6048-1 [CTR] ... 0-6048-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6048_1.pdf
2.3 MB

______________________________________________________________________________________________________

Updated Workshop Material: Data and Practical Examples

63.

2009 ... by Jorge A. Prozzi; prepared for and sponsored by the Texas Department of Transportation · CONTENTS: File "TxDOT 0-6045 Chapter 1_mod.pptx" : Project 0-6045, Evaluation of Influence of Operational Tolerance, Chapter 1: Introduction (233KB, 23 slides) -- -- File "TxDOT 0-6045 Chapter 2_mod.pptx" : Project 0-6045,

6045-P3 [CTR] ... Product 0-6045-P3

Full-text Link:
http://library.ctr.utexas.edu/digitized/zipfiles/CTR_0-6045-P3.zip
804 KB ZIP file (SEE NOTES FOR FILES INCLUDED)

______________________________________________________________________________________________________

MS Access Database Containing Performance Results

64.

2009 ... by Jorge A. Prozzi and Jose P. Aguiar-Moya · 1 database · CONTENTS: 0-6045_P2.mdb · Publ. by: University of Texas at Austin. Center for Transportation Research (CTR).

6045-P2 [CTR] ... Product 0-6045-P2

Full-text Link:
http://library.ctr.utexas.edu/digitized/zipfiles/0-6045-P2.zip
288KB ZIP file/2.9 MB uncompressed

______________________________________________________________________________________________________

Laboratory Evaluation of Influence of Operational Tolerance (Acceptance Criterion) on Performance of Hot-Mix Asphalt Concrete

65.

2010 ... Christian G. Vasquez, Jose P. Aguiar-Moya, Andre de F. Smit, Jorge A. Prozzi · The performance of flexible pavements relies heavily on the final quality of the hot-mix asphalt concrete (HMAC) as it is produced and placed in the field. To account for production and construction variability while ensuring the quality of the HMAC,

6045-1 [CTR] ... FHWA/TX-11 /0-6045-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6045_1.pdf
1.2 MB

______________________________________________________________________________________________________

Laboratory Evaluation of Influence of Operational Tolerance (Acceptance Criterion) on Performance of HMAC

66.

2009 ... Jorge A. Prozzi [and three others] · The development of high performing mixtures is a major objective of hot-mix asphalt (HMA) design; however, most mix design methods are based on volumetrics because volumetric properties correlate with performance. This correlation is by no means perfect, therefore, more reliable methods

6045 [CTR] ... PSR 0-6045 ... Project Summary Report, 0-6045

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/6045.pdf

______________________________________________________________________________________________________

Toll Roads: What We Know About Forecasting Usage and the Characteristics of Texas Users

67.

2010 ... Jolanda Prozzi [and nine others] · Inadequate funding from fuel taxes, increased demand for transportation, and increased maintenance needs due to an aging highway system, have resulted in significant deficits along with renewed interest in toll road development, both to finance new roads or add capacity to existing

6044-P1 [CTR] ... Product 0-6044-P1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6044_P1.pdf
874 KB

______________________________________________________________________________________________________

Characteristics of the Truck Users and Non-Users of Central Texas Toll Roads

68.

2009 ... Jolanda Prozzi [and four others] · As the use of toll roads increase to finance new road infrastructure or add capacity to existing road infrastructure, the question of who use and do not use toll roads becomes increasingly important to toll road developers, financiers, Traffic and Revenue consultants, and investors, among others. The

6044-2 vol.2 [CTR] ... FHWA/TX-10/0-6044-2 v.2

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6044_2v2.pdf
1.3 MB

______________________________________________________________________________________________________

Characteristics of the Auto Users and Non-Users of Central Texas Toll Roads

69.

2009 ... Jolanda Prozzi [and four others] · As toll road usage increases to finance new road infrastructure or add capacity to existing road infrastructure, the question of who does and does not use toll roads becomes increasingly important to toll road developers, financiers, Traffic and Revenue consultants, and investors, among others.

6044-2 vol.1 [CTR] ... FHWA/TX-10/0-6044-2 v.1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6044_2v1.pdf
1.1 MB

______________________________________________________________________________________________________

Estimated vs. Forecasted Toll Usage: A Case Study Review

70.

2008 ... C. Michael Walton [and six others] · Reliable T&R forecasts are critical to the success of toll proposals. However, a number of studies by the bond rating agencies—specifically Standard & Poor’s (S&P)—have shown that a majority of toll roads failed to meet revenue expectations in their first full year of operation. These studies alluded

6044-1 [CTR] ... FHWA/TX-10/0-6044-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6044_1.pdf
2.5 MB

______________________________________________________________________________________________________

Estimated and Actual Usage of Toll Facilities

71.

2009 ... C. Michael Walton [and nine others] · As toll road development increases to finance new or add capacity to existing road infrastructure, reliable traffic and revenue (T&R) forecasts informed by a robust understanding of who uses and who does not use toll roads becomes increasingly important to toll road developers, financiers, T&R

6044 [CTR] ... PSR 0-6044 ... Project Summary Report, 0-6044

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/6044.pdf

______________________________________________________________________________________________________

Financing Tools and Partnerships for Rural and Semi-urban Transportation Projects

72.

2009 ... Dr. Khali Persad, Dr. C. Michael Walton and Patricia Franco · In this research product, financing techniques and partnerships for rural and small urban area transportation projects are presented. This research examined alternative financing options, TxDOT experience with them, and lessons learned. The results will be of use

6034-P1/P2 [CTR] ... Product 0-6034-P1; Product 0-6034-P2

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6034_P1.pdf
1.4 MB; P1 is equivalent to P2

______________________________________________________________________________________________________

Financing Tools for Rural and Small Urban Area Projects

73.

2009 ... Khali R. Persad, C. Michael Walton, Patricia Franco · This research examined financing tools that are applicable to rural and small urban area projects undertaken by the Texas Department of Transportation. It documents district experience with some of these tools and lessons learned. Pass-Through Tolling Agreements

6034-1/P1/P2 [CTR] ... FHWA/TX-09/0-6034-1; Product 0-6034-P1; Product 0-6034-P2

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_6034_1.pdf ·
http://www.utexas.edu/research/ctr/pdf_reports/0_6034_P1.pdf
11.5 MB, 1.4 MB

______________________________________________________________________________________________________

Planning and Financing Tools for Rural Small Urban Area Projects

74.

2008 ... RS: C. Michael Walton; Researchers: Patricia Franco and Khali R. Persad · This research addresses the unique financing and planning needs of rural and small urban areas (RSUA) of Texas. It will aid these areas in determining the financing and planning tools appropriate to each type of transportation project and the

6034 [CTR] ... PSR 0-6034 ... Project Summary Report, 0-6034

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/6034.pdf

______________________________________________________________________________________________________

0-6005, Development of the Total Pavement Acceptance Device (TPAD) and Initial Pavement Studies

75.

2013 ... Research Supervisor: Kenneth H. Stokoe II; Researchers: Jung-Su Lee [and four others] · "The predecessor of the total pavement acceptance device (TPAD) is the rolling dynamic deflectometer (RDD). The RDD was developed by the Center for Transportation Research (CTR) at the University of Texas at Austin (UT) with

6005 PSR [CTR] ... 0-6005-S ... Project Summary Report

Full-text Link:
http://library.ctr.utexas.edu/hostedpdfs/txdot/psr/0-6005-s.pdf
349 KB

______________________________________________________________________________________________________


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