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0-6859, Operational Analysis of Active Traffic Management Strategies
2018 ... Research Performed by: Center for Transportation Research; Research Supervisor: Stephen D. Boyles; Other Supervisors: C. Michael Walton, Jennifer Duthie; Researchers: Venktesh Pandey [and five others] · "The objective of this project is to develop tools for analyzing the effectiveness of active traffic management (ATM)
6859 Summary [CTR] ... PSR 0-6859-S ... Project Summary
Full-text Link:
241 KB
A Planning Tool for Active Traffic Management Combining Microsimulation and Dynamic Traffic Assignment
2018 ... Stephen D. Boyles [and ten others] · Active traffic management (ATM) strategies have been considered as a tool for congestion mitigation in the last few decades. They rely on real-time traffic observations to regulate the flow of traffic. This research focuses on developing tools for evaluating the effectiveness of ATM strategies for
6859-1 [CTR] ... FHWA/TX-17/0-6859-1
Full-text Link:
4.6 MB
0-6900, Coordinating Consistency between Statewide and Regional Models
2017 ... Research Performed by: Center for Transportation Research (CTR); Research Supervisor: Stephen Boyles; Researchers: Chandra Bhat [and seven others] · "Transportation planning models are commonly used by US planning agencies to aid decision- making processes. In Texas, a statewide analysis model (SAM) is used for
6900 Summary [CTR] ... PSR 0-6900-S ... Project Summary
Full-text Link:
135 KB
Methods for Improving Consistency between Statewide and Regional Planning Models
2017 ... Stephen D. Boyles [and eight others] · Given the difference in scope of statewide and MPO models, inconsistencies between the two levels of modelling are inevitable. There are, however, methods to reduce these inconsistencies. This research provides insight into the current practices of statewide modelling across the USA and
6900-1 [CTR] ... FHWA/TX-17/0-6900-1
Full-text Link:
2.7 MB
Travel Modeling in an Era of Connected and Automated Transportation Systems : An Investigation in the Dallas-Fort Worth Area
2017 ... James Kuhr [and six others (CTR)]; Thomas Bamonte, Arash Mirzaei, Hong Zheng (NCTCOG); Research Supervisor: Chandra Bhat · The North Central Texas Council of Governments (NCTCOG) engaged D-STOP to conduct a planned four-year study to analyze the status and progress of connected/autonomous vehicle (CAV)
DSTOP Report 122 [CTR] ... DSTOP/2017/122 ... Technical Report (D-STOP), 120
Full-text Link:
1.7 MB
CAMPO-CTR Dynamic Traffic Assignment Interlocal Agreement FY16 Deliverables Submittal
[2016] ... [Jen Duthie and others] · "Part of Task 3 of the contract with CTR is to assist CAMPO by identifying areas for model improvement. This effort was completed through a variety of means. Some of the assistance was provided as a result of direct requests from CAMPO leadership to examine CAMPO’s modeling practices as they
Full-text Link:
31.2 MB
Travel Demand Forecasting. Volume 1
2016 ... [various authors] · "This issue contains sixteen papers about travel demand forecasting. Specific topics addressed in this issue include long- and short-distance personal travel; predicting long-distance travel for the entire U.S. population; long-range regional safety evaluation; applications of a joint time-of-day and route choice
TRR 2563 ... TRR 2563 ... Transportation Research Record (TRR), 2563
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0-6704, Reduction of Motorists’ Delay and Crash Potential Upstream of Highway Work Zones
[2016] ... Research Performed by: Center for Transportation Research; Research Supervisor: Randy Machemehl; Researchers: Chris Fournier [and seven others] · "Work zone lane closures on highways create difficulty in providing efficient traffic operations and safe conditions for drivers and workers. Lane closures due to
6704 Summary [CTR] ... PSR 0-6704-S ... Project Summary
Full-text Link:
110 KB
Final Report, Network Modeling Center
2015 ... Jennifer Duthie [and thirteen others] · · CONTENTS: Executive Summary -- Task A: DTA Model Maintenance -- Task B. DTA Model Improvements -- Task C: Integrating DTA into CAMPO's Modeling Process -- Task D: DTA Coordination Work -- Task E: DTA Applications · "Final Contract Report, Prepared for: CAMPO;
Full-text Link:
No online resource supplied by publisher
Network modeling. Volume 2
2015 ... [various authors] · "TRB?s Transportation Research Record: Journal of the Transportation Research Board, No. 2498 consists of 13 papers covering the following topics relating to network modeling: Markov Chain Modeling of Pavement Surfacing, Heuristic Approach to Capacitated Traffic Assignment Problem for Large-Scale
TRR 2498 ... TRR 2498 ... Transportation Research Record (TRR), 2498
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0-6810, Guidelines for Applying Right Turn Slip Lanes
2015 ... Research Performed by: Center for Transportation Research; Research Supervisor: Jennifer Duthie, Researchers: Mason Gemar, Zeina Wafa, Chandra Bhat · "Right-turn slip lanes are advantageous to motorists because they reduce delays by separating right-turning traffic from adjacent lanes and accommodating higher-
6810 Summary [CTR] ... PSR 0-6810-S ... Project Summary
Full-text Link:
466 KB
A Report on the Development of Guidelines for Applying Right-Turn Slip Lanes
2015 ... Mason Gemar [and three others] · This report serves as a summary of the research process regarding the application of right-turn slip lanes in the state of Texas. The work plan was divided into three phases: a review of available literature on the design and operation of right-turn slip lanes, focus group meetings to discuss the
6810-1 [CTR] ... FHWA/TX-14/0-6810-1
Full-text Link:
3.5 MB
Network Modeling Center: TxDOT Project Applications
[2015] ... Mason Gemar, Ph.D., PE, PTOE, Jen Duthie, Ph.D., Jackson Archer · The Network Modeling Center used dynamic traffic assignment (DTA) to model nine alternate scenarios of the planned I-35 corridor improvements through central Austin. A version of each scenario modeled was developed to represent AM and PM peak period
Poster 2015 CTR Symp: Gemar
Full-text Link:
12.3 MB
An Investigation Of Centroid Connector Placement For Advanced Traffic Assignment Models With Added Network Detail
[2015] ... Ehsan Jafari, Mason D. Gemar, Natalia Ruiz Juri, Jennifer Duthie · Added Network Detail Advanced traffic assignment models typically incorporate more detailed network representations than traditional planning models. In this context, the placement of centroid connectors may have a significant impact on model performance
Poster 2015 CTR Symp: Jafari
Full-text Link:
1 MB
Implementing advanced methodologies for regional transportation planning
[2014] ... Jennifer Duthie [and eight others] · · Presented at the 2014 CTR Symposium, April 23, 2014, Austin, Texas · Publ. by: [Produced by researcher].
Poster 2014 CTR Symp: Duthie
Full-text Link:
No online resource supplied by researcher
On the Impacts of Time Resolution in the Integration of Activity-based and Assignment Models
[2014] ... Nan Jiang [and four others] · This work studies the impacts on model performance, sensitivity and results of utilizing different temporal resolution levels for the skims fed to the travel demand component of an integrated ABM-DTA modeling approach. Numerical experiments on real networks will be used to identify trends
Poster 2014 CTR Symp: Jiang
Full-text Link:
No online resource supplied by researcher
A Transit Route Choice Model for Application in Dynamic Transit Assignment
[2014] ... Alireza Khani [and 4 others] · A logit transit route choice model is estimated using Capital Metro's on-board survey data. The model is supposed to capture more detailed path attributes and user characteristics such as fare, value of time and user type. The goal is to use the route choice model in a schedule-based transit assignment
Poster 2014 CTR Symp: Khani
Full-text Link:
No online resource supplied by researcher
Game-Theoretic Analysis of Dynamic Traffic Equilibria
2014 ... By Stephen D. Boyles, Christopher Melson, Tarun Rambha, Jennifer C. Duthie · Dynamic traffic assignment has grown steadily in popularity and use since its inception. It has become an important and permanent tool in transportation agencies across the country. However, the exact nature of dynamic traffic equilibrium,
2014-600451-00079-1 [CTR] ... SWUTC/14/600451-00079-1
Full-text Link:
740 KB
Minimizing User Delay and Crash Potential through Highway Work Zone Planning
2014 ... Michael Kurker [and nine others] · Lane closures due to highway work zones introduce many challenges to ensuring smooth traffic operations and a safe environment for drivers and workers. In addition, merging has been found to be one of the most stressful aspects of driving and a merge process that is viewed as "unfair"
6704-1 [CTR] ... FHWA/TX-13/0-6704-1
Full-text Link:
3.5 MB
Investigating Regional Dynamic Traffic Assignment Modeling for Improved Bottleneck Analysis. Final Report
2013 ... Jennifer C. Duthie [and eight others] · This research employed dynamic traffic assignment (DTA) modeling to study the network-wide impact of bottleneck alleviation measures taken by TxDOT on MoPac Expressway in downtown Austin. The measures led to a small improvement in MoPac travel conditions and no major
6657-1 [CTR] ... FHWA/TX-13/0-6657-1
Full-text Link:
2.6 MB
Dynamic Traffic Assignment Applications
2013 ... Dr. Jennifer Duthie, Dr. Natalia Ruiz Juri, Shoupeng Tang, Rouyu Liu · CTR's Network Modeling Center researches, develops, and applies dynamic traffic assignment (DTA) models. This poster highlights some recent DTA applications and how the model was used to help answer key questions. · This poster was presented at
Poster 2013 CTR Symp: Duthie
Full-text Link:
0-6657, Investigating Regional Dynamic Traffic Assignment Modeling for Improved Bottleneck Analysis
2013 ... Research Performed by: Center for Transportation Research; Research Supervisor: S. Travis Waller; Researchers: Jennifer C. Duthie [and seven others] · "The Texas Department of Transportation (TxDOT) made geometric changes to the MoPac Expressway near the downtown Austin area in September 2010 to alleviate the
6657 Summary [CTR] ... PSR 0-6657-S ... Project Summary Report
Full-text Link:
150 KB
Using Smartphones to Collect Bicycle Travel Data in Texas
2012 ... by Joan G. Hudson [and four others] · Researchers believed that if smartphones could prove to be an effective tool for collecting bicycle travel data, the information could be used for aiding decision making as to what types of facilities users prefer and guiding decisions about future facilities. If adequate facilities were provided, the
... UTCM 11-35-69
Full-text Link:
5.7 MB
Workshop Materials : PowerPoint and Guide
2012 ... by Jennifer Duthie, Fernanda Leite · This CD-ROM contains a PDF "Very Short Duration Operations: Safety Guidebook" and a 55-slide Microsoft PowerPoint (.pptx) presentation "TxDOT Research Project 0-6640, State of the Practice For Workers in Very Short Duration Work Zone Operations: Educational Module," a workshop
6640-P2 [CTR] ... Product 0-6640-P2
Full-text Link:
9.8 MB
Guidebook on DTA Data Needs and Interface Options for integration into the Planning Process
2012 ... Jennifer Duthie [and four others] · "The goals of this guidebook are three-fold: 1) outline the data needed to run a dynamic traffic assignment (DTA) model, 2) propose methods for integrating DTA with macroscopic planning models and microscopic simulation models, and 3) propose methods for integrating DTA within the four-
6657-P1 [CTR] ... Product 0-6657-P1
Full-text Link:
2.1 MB
Dynamic Traffic Assignment for the City of Austin's Strategic Mobility Plan
[2011] ... Jennifer Clare Duthie, Natalia Ruiz Juri, and S. Travis Waller · A dynamic traffic assignment (DTA) model was used to evaluate five scenarios of changes to streets in downtown Austin, Texas. Performance measures were gathered not only for the street being changed, but also for streets throughout the rest of
Poster 2011 CTR Symp: Duthie
Full-text Link:
No online resource supplied by researcher
Texas Roundabout Guidelines : Final Report
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
6414-1 [CTR] ... FHWA/TX-08/0-6414-1
Full-text Link:
12.6 MB
Pilot Workshop and Materials (CD ROM)
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:
11.7 MB
Texas Roundabout Guidelines
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:
11 MB
Development of Guidelines for Implementation of Roundabouts in Texas
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 Summary [CTR] ... PSR 0-6414-s ... Project Summary Report, 0-6414
Full-text Link:
52 KB
GLUM Guidebook / Training Materials
2010 ... Kara Kockelman [and six others] · "Long-term traffic forecasts require long-term land use forecasts, which may be affected by mid- and near-term transportation infrastructure decisions, as well as traveler choices and associated changes in travel times and the relative access of competing locations. A long-standing methodology
5667-01-P1 [CTR] ... Product 5-5667-01-P1
Full-text Link:
· https://ctr.utexas.edu/wp-content/uploads/pubs/5_5667_01_P1_slides.pdf
1.2 MB; slides=905 KB
Bicycles 2010
2010 ... Jennifer Duthie [and three others] · No. 2190 contains 6 papers that explore the influence of the built environment on route selection for bicycle and car travel; automated bicycle counts; multimodal travel choices of bicyclists; effects of gender on commuter cycling and accident rates; on-street bicycle facility configuration effects
TRR 2190 ... TRR 2190 ... Transportation Research Record (TRR), 2190
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Network methods for project selection based on optimizing environmental impact
2010 ... Erin M. Ferguson, Jennifer Duthie and S. Travis Waller · Traditionally, transportation road networks have been designed for minimal congestion. Unfortunately, such approaches do not guarantee minimal vehicle emissions. Given the negative impacts of vehicle pollutants as well as tighter national air quality standards, it is
2010- 161026-1 [CTR] ... SWUTC/10/161026-1
Full-text Link:
720 KB
Evaluation of Four Experimental Bicycle Safety Devices in Austin, TX. Executive Summary
2010 ... John F. Brady [and four others] · As the number of trips made by bicycle continues to increase, there exists a greater need to safely accommodate bicycles within the transportation network. Four experimental bicyclist safety devices were installed and studied in Austin, Texas to determine if they offered a substantial improvement in
MS-9599 [CTR] ... City of Austin Bicycle Lane Marking Studies
Full-text Link:
Effects of Colored Lane Markings on Bicyclist and Motorist Behavior at Conflict Areas
2010 ... prepared by the City of Austin Bicycle Team [John Brady and four others] · "As the number of trips made by bicycle continues to increase in Austin, there is a need to design existing roadways to safely accommodate bicyclists at areas where bicyclists and motorists must cross paths. Conflicts are common on facilities where a
MS-9602 [CTR] ... City of Austin Bicycle Lane Marking Studies
Full-text Link:
902 KB
Effects of Bicycle Boxes on Bicyclist and Motorist Behavior at Intersections
2010 ... Prepared by City of Austin Bicycle Team [Jeff Loskorn and four others] · "The primary goal of this study was to determine what effect, if any, bicycle boxes have on bicyclist and motorist safety. Data of bicyclist and motorist behavior was collected under three conditions: while no bicycle box existed, after bicycle box markings
MS-9603 [CTR] ... City of Austin Bicycle Lane Marking Studies
Full-text Link:
912 KB
Effects of "Bicycles May Use Full Lane" Signs on Bicyclist and Motorist Behavior along Multi-Lane Facilities
2010 ... Prepared by The City of Austin Bicycle Team, Alison Mills, Jeff Loskorn, John Brady, Jen Duthie, Randy Machemehl · "The primary goal of this study was to determine what effect, if any, “Bicycles May Use Full Lane” signs have on bicyclist and motorist safety. Therefore, pre- and post-implementation data for each of two study
MS-9601 [CTR] ... City of Austin Bicycle Lane Marking Studies
Full-text Link:
1.2 MB
Effects of Shared Lane Markings on Bicyclist and Motorist Behavior along Multi-Lane Facilities
2010 ... Prepared by City of Austin Bicycle Team [John Brady and four others]; prepared for the City of Austin, Neighborhood Connectivity Division, Bicycle Division · "The primary goal of this study was to determine what effect, if any, sharrows have on bicyclist and motorist safety. Therefore, pre- and post-implementation data for
MS-9600 [CTR] ... City of Austin Bicycle Lane Marking Studies
Full-text Link:
1.4 MB
Multimodal Network Models for Robust Transportation Systems
2009 ... Jennifer Duthie [and three others] · Since transportation infrastructure projects have a lifetime of many decades, project developers must consider not only the current demand for the project but also the future demand. Future demand is of course uncertain and should be treated as such during project design. Previous research for
2009-167867-1 [CTR] ... SWUTC/09/167867-1
Full-text Link:
An Examination of Land Use Models, Emphasizing UrbanSim, TELUM, and Suitability Analysis
2008 ... Kara Kockelman [and six others] · This work provides integrated transportation land use modeling guidance to practitioners in Texas regions of all sizes. The research team synthesized existing land use modeling experiences from MPOs across the country, examined the compatibility of TELUM's and UrbanSim's requirements
5667-1 [CTR] ... FHWA/TX-09/ 0-5667-1
Full-text Link:
3.8 MB
Analysis and Guidelines for Establishing Unified Urban Land-Use and Transportation System Planning Framework and Procedures
2008 ... RS: Kara Kockelman; Researchers: Jennifer Duthie [and five others] · The CTR research team interviewed staff at 30 metropolitian planning organizations (MPOs) from around the U.S. regarding land use modeling practices and available data sets. They examined literature and experiences across a wide variety of
5667 Summary [CTR] ... PSR 0-5667-S ... Project Summary Report, 0-5667
Full-text Link:
Forecasting Employment & Population In Texas : An Investigation on TELUM Requirements, Assumptions, and Results, including a Study of Zone Size Effects, for the Austin and Waco Regions
[2007] ... Varunraj Valsaraj [and three others] · "The FHWA’s publicly available Transportation, Economic, and Land Use Model (TELUM) predicts the future spatial distributions of employment and households using Putman’s Integrated Transportation Land Use Package (ITLUP) equations. TELUM was used here to generate the employment
Full-text Link:
6.3 MB
Environmental Justice, Social and Economic Factors, Women's Travel, and Accessibility and Mobility 2007
2007 ... [various authors] · This collection of 10 papers addresses the following transportation planning topics: emergency response for communities with limited English proficiency; environmental justice analysis for metropolitan transportation planning; equity and fairness in tolling and pricing; environmental justice assessments
TRR 2013 ... TRR 2013 ... Transportation Research Record (TRR), 2013
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Incorporating Environmental Justice Measures into Equilibrium-based Transportation Network Design Models
2007 ... Jennifer Duthie and S. Travis Waller · This research outlines three major challenges of incorporating Environmental Justice (EJ) into metropolitan transportation planning and proposes a new variation of the user equilibrium discrete network design problem (UE-DNDP) for achieving EJ amongst population groups.. Needed data
2007-167265-1 [CTR] ... SWUTC/07/167265-1
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Robust Design and Evaluation of Transportation Networks with Equilibrium Under Demand Uncertainty
2006 ... Jennifer Duthie and S. Travis Waller · As long-term forecasts of origin-destination (O-D) travel demands are inherently uncertain, future network performance cannot be predicted with certainty. Neglecting the uncertainties present can result in inaccurate measures of network performance that may lead to incorrect policy
2006-167556-1 [CTR] ... SWUTC/06/167556-1
Full-text Link:
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