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Network Modeling
2017 ... [various authors] · "This issue contains fifteen papers concerning network modeling. Specific topics covered are as follows: monitoring signalized urban networks; maximization of platoon formation; solving the school bus routing problem; and estimation of time-varying origin-destination patterns for design of multipath
TRR 2667 ... TRR 2667 ... Transportation Research Record (TRR), 2667
Full-text Link:
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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
An Assessment of Autonomous Vehicles : Traffic Impacts and Infrastructure Needs, Final Report
2017 ... Dr. Kara Kockelman (Research Supervisor) with Dr. Stephen Boyles [and nineteen others] · The project began by understanding the current state of practice and trends. NHTSA’s four-level taxonomy for automated vehicles was used to classify smart driving technologies and infrastructure needs. The project used surveys to
6847-1 [CTR] ... FHWA/TX-17/0-6847-1
Full-text Link:
2 MB
Best Practices for Modifying Transportation Design, Planning, and Project Evaluation in Texas
2017 ... Kara Kockelman [and ten others] · "Connected and automated vehicles (CAVs) in Texas are about to significantly change how the Texas transportation system works. The Texas Department of Transportation (TxDOT) maintains the most widespread state-level transportation network, and it is important to expect, understand, and
6847-P1 [CTR] ... Product 0-6847-P1
Full-text Link:
532 KB
0-6847, An Assessment of Autonomous Vehicles : Traffic Impacts and Infrastructure Needs
2017 ... Research Performed by: Center for Transportation Research; Research Supervisor: Kara Kockelman; Researchers: Kara Kockelman [and nineteen others] · "This project investigated how connected and (fully) automated vehicles (CAVs) can affect traffic congestion and travel demand, and developed best-practice
6847 Summary [CTR] ... PSR 0-6847-S ... Project Summary
Full-text Link:
77 KB
Bringing Smart Transport to Texans : Ensuring the Benefits of a Connected and Autonomous Transport System in Texas. Final Report
[2017] ... Dr. Kara Kockelman with Dr. Stephen Boyles [and twenty two others] · "This project develops and demonstrates a variety of smart-transport technologies, policies, and practices for highways and freeways using connected autonomous vehicles (CAVs), smartphones, roadside equipment, and related technologies. The intent is
6838-2 [CTR] ... FHWA/TX-16/0-6838-2
Full-text Link:
· https://library.ctr.utexas.edu/ctr-publications/0-6838-2-appx.pdf
8.7 MB; 15.7 MB
Network Modeling
2016 ... [various authors] · "This issue contains 15 papers concerning network modeling. Specific topics covered are as follows: dynamic optical vehicle relocation in carshare systems; resource replenishment location for service trucks; sensor deployment strategy for dynamic origin-destination demand estimation; and pricing and
TRR 2567 ... TRR 2567 ... Transportation Research Record (TRR), 2567
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Traffic Flow Theory and Characteristics. Volume 2
2016 ... [various authors] · "This issue contains eleven papers concerning traffic flow theory and characteristics. Specific topics covered are as follows: hybrid multimodal and intermodal transport simulation; effects of autonomous vehicle behavior on arterial and freeway networks; generalized adaptive smoothing method for state
TRR 2561 ... TRR 2561 ... Transportation Research Record (TRR), 2561
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Improved Traffic Operations through Real-Time Data Collection and Control
2016 ... Stephen Boyles and Michael Levin · Intersections are a major source of delay in urban networks, and reservation-based intersection control for autonomous vehicles has great potential to improve intersection throughput. However, despite the high flexibility in reservations, existing control policies are fairly limited. To
DSTOP Report 108 [CTR] ... DSTOP/2016/108 ... Technical Report (D-STOP), 108
Full-text Link:
350 KB
Best Practices Guidebook for Preparing Texas for Connected and Automated Vehicles
2016 ... Kara Kockelman [and eight others] · "Connected and automated vehicles (CAVs) are destined to change how the Texas transportation system operates. TxDOT is responsible for the nation’s most extensive state-level network, and it is essential to explore the potential impacts of CAVs on the design, maintenance, and operation of
6849-P1 [CTR] ... Product 0-6849-P1
Full-text Link:
410 KB
Implications of Connected and Automated Vehicles on the Safety and Operations of Roadway Networks : A Final Report
2016 ... Kara Kockelman [and seventeen others] · Advances in vehicle automation and communication can dramatically reduce the economic and comprehensive costs of U.S. crashes. This report quantifies in detail the crash-related gains of various vehicle automation and connectivity features and anticipates their near-term and long-
6849-1 [CTR] ... FHWA/TX-16/0-6849-1
Full-text Link:
5.7 MB
0-6849, Implications of Automated Vehicles on Safety, Design and Operation of the Texas Highway System
2016 ... Research Performed by: Center for Transportation Research; Research Supervisor: Kara Kockelman; Researchers: Stephen D. Boyles [and eight others] · "This project’s intent was two-fold: 1) understand the implications of connected and autonomous vehicles (CAVs) on the safety, design, and operation of the Texas
6849 Summary [CTR] ... PSR 0-6849-S ... Project Summary
Full-text Link:
59 KB
Bringing Smart Transport to Texans
2016 ... [Kara Kockelman and seven others] · RTI Project #0-6838—Bringing Smart Transport to Texans: Ensuring the Benefit of a Connected and Autonomous Transport System in Texas, developed and demonstrated a variety of smart-transport technologies and practices for Texas highways and freeways using automated vehicles
6838 Video Summary [CTR] ... RTI VSR 0-6838 ... Best Practices Video Summary Report
Full-text Link:
YouTube video
Dynamic Network Loading Model of Autonomous Vehicle Behavior
[2016] ... by Michael W. Levin, Rahul Patel, and Stephen D. Boyles · Autonomous vehicles (AVs) offer new traffic behaviors that could revolutionize transportation, such as the reservation-based intersection control and reduced reaction times that result in greater road capacity. Recent developments in reservation models and multiclass cell
Poster 2016 CTR Symp: Levin
Full-text Link:
992 KB
Implications of Traffic Signal Security on Potential Deliberate Traffic Disruptions (TRB 16-2433)
[2016] ... by Kenneth A. Perrine [and three others] · Traffic control systems all have the capacity to be vulnerable to malicious attacks. Although several studies on outages and attacks have been conducted in the literature, effects of attacks on signals have not been specifically studied. There is a need for risk assessments to
Poster 2016 CTR Symp: Perrine
Full-text Link:
945 KB
Transit Demand and Routing after Autonomous Vehicle Availability
2015 ... Stephen Boyles [and four others] · Autonomous vehicles (AVs) create the potential for improvements in traffic operations as well as new behaviors for travelers such as car sharing among trips through driverless repositioning. Most studies on AVs have focused on technology or traffic operations, and the impact of AVs on
DSTOP Report 104 [CTR] ... DSTOP/2016/104 ... Technical Report (D-STOP), 104
Full-text Link:
1.9 MB
Travel demand forecasting. Volume 1
2015 ... [various authors] · · CONTENTS: Foreword -- Population synthesis in activity-based models: tabular rounding in iterative proportional fitting / Abdoul-Ahad Choupani and Amir Reza Mamdoohi -- Estimating route choice models from stochastically generated choice sets on large-scale networks: correcting for unequal sampling
TRR 2493 ... TRR 2493 ... Transportation Research Record (TRR), 2493
Full-text Link:
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Intersection Auctions and Reservation-Based Control in Dynamic Traffic Assignment
[2015] ... Michael W. Levin, Stephen D. Boyles · Autonomous vehicle (AV) technology is maturing, with AVs test-driving on public roads. A promising intersection control policy (TBR) proposed by Dresner and Stone (1) offers the potential to improve intersection capacity beyond the capabilities of optimized traffic signals. Although TBR has been
Poster 2015 CTR Symp: Levin
Full-text Link:
1.6 MB
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
Multiagent Incentive-based Locomotion Optimizer : Toll roads for autonomous vehicles in urban areas
[2014] ... Dustin Carlino [and three others] · Road pricing mechanisms, like toll roads, exist to address traffic congestion. This project introduces MILO (Multiagent Incentive-based Locomotion Optimizer), a multi-agent system that places dynamic tolls on all roads and intersections to incentivize drivers to diversify their routes and utilize
Poster 2014 CTR Symp: Carlino
Full-text Link:
No online resource supplied by researcher
Developing Tolled-Route Demand Estimation Capabilities for Texas : Opportunities for Enhancement of Existing Models
2014 ... by Kevin Hall [and five others] · The travel demand models developed and applied by the Transportation Planning and Programming Division (TPP) of the Texas Department of Transportation (TxDOT) are daily three-step models (i.e., trip generation, trip distribution, and traffic assignment sequentially invoked). Currently, TxDOT TPP
6754-1 [TTI] ... FHWA/TX-14/0-6754-1
Full-text Link:
5.2 MB
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
0-6754, Review of Tolling Approaches for Implementation within TxDOT’s Travel Demand Models
[2014] ... Research Performed by: Texas A&M Transportation Institute (TTI), Center for Transportation Research (CTR); Research Supervisor: Kevin Hall; Researchers: Kara Kockelman [and five others] · "The urban travel demand models developed and applied by the Transportation Planning and Programming Division of the Texas
6754 Summary [TTI] ... PSR 0-6754-S ... Project Summary
Full-text Link:
92 KB
Game Theory and Traffic Assignment
2013 ... by Tarun Rambha, Stephen D. Boyles · Traffic assignment is used to determine the number of users on roadway links in a network. While this problem has been widely studied in transportation literature, its use of the concept of equilibrium has attracted considerable interest in the field of game theory. The approaches used in both
2013-600451-00065-1 [CTR] ... SWUTC/13/600451-00065-1
Full-text Link:
1.5 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
Project Evaluation Toolkit (PET) for Abstracted Networks
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:
764 KB
User's Guide for PET : Project Evaluation Toolkit : A Sketch-Planning Toolkit for Evaluating Highway Transportation Projects, Version 2.0
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-P1/6235-01-P1-P4 [CTR] ... Product 0-6487-P1; Product 5-6235-01-P1; Product 5-6235-01-P2;
Full-text Link:
3.8 MB
A Project Evaluation Toolkit (PET) for Abstracted Networks : Final Report
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
6487-1 [CTR] ... FHWA/TX-2013/0-6487-1
Full-text Link:
1.8 MB
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
0-6487, Development of a Performance Measurement-Based Methodology to Objectively Compare Operational Improvements with Capacity Additions
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 Summary [CTR] ... PSR 0-6487-S ... Project Summary Report
Full-text Link:
161 KB
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
Robust Pricing of Transportation Networks Under Uncertainty
2010 ... Stephen D. Boyles, Lauren Gardner and S. Travis Waller · Both public and private entities are concerned with the impacts of future toll revenue, and the effects of tolled facilities on system congestion. Due to the inherent complexity of transportation systems, it is impossible to predict travel demand and congestion conditions exactly,
2010- 169206-1 [CTR] ... SWUTC/10/169206-1
Full-text Link:
Quantifying Travel Time Variability in Transportation Networks
2010 ... Stephen D. Boyles, Avinash Voruganti and S. Travis Waller · Nonrecurring congestion creates significant delay on freeways in urban areas, lending importance to the study of facility reliability. In locations where traffic detectors record and archive data, approximate probability distributions for travel speed or other quantities of
2010- 167275-1 [CTR] ... SWUTC/10/167275-1
Full-text Link:
Utilizing the Data Collected at Traffic Management Centers for Planning Purposes Through Non-Traditional Sources and Improved Equipment
2008 ... RS: S. Travis Waller; Researchers: Stephen Boyles [and eight others] · With ever increasing demands placed on their resources, all transportation agencies must seek innovative methods for achieving their objectives. Transportation system monitoring presents a highly valuable opportunity for improved efficiency through
5686 Summary [CTR] ... PSR 0-5686-S ... Project Summary Report, 0-5686
Full-text Link:
Archiving, Sharing, and Quantifying Reliability of Traffic Data
2008 ... S. Travis Waller [and nine others] · Vast quantities of transportation data are automatically recorded by intelligent transportation infrastructure, such as inductive loop detectors, video cameras, and side-fire radar devices. Such devices are typically deployed by traffic management centers (TMCs), and the data used for
5686-1 [CTR] ... FHWA/TX-09/0-5686-1
Full-text Link:
3.7 MB
Ramp Treatment and Dynamic Closure Strategies for Incident Traffic Management.
2007 ... RS: S. Travis Waller; Researchers: Stephen Boyles [and three others] · As traffic congestion levels throughout the nation continue to increase, huge amounts of research, political, and technical effort have been invested to alleviate the negative impacts of congestion. Most freeway congestion is a result of nonrecurring events
5422 Summary [CTR] ... PSR 0-5422-s ... Project Summary Report, 0-5422
Full-text Link:
Ramp Closure Strategies for Incident Management
2007 ... Travis Waller, Stephen Boyles, David Fajardo and Ampol Karoonsoontawong · Non-recurring congestion accounts for a significant portion of freeway delay experienced by motorists in both rural and urban areas. Because access to these facilities is controlled by on ramps, these can play a major role in minimizing the impact that
5422-1 [CTR] ... 0-5422-1
Full-text Link:
461 KB
Incident Duration Prediction Models
2007 ... prepared by Travis Waller and Stephen Boyles · CDROM includes software documentation and NBDIS executable program. | "NBIDS is designed to predict incident duration (one common measure of severity) in real-time, using historical incident data with a minimum of calibration effort. Chapter 2 [documentation] guides the
5422-P2 [CTR] ... Product 0-5422-P2
Full-text Link:
294 KB ZIP = 1 PDF & 1 .exe file
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