Dr. Kara M. Kockelman PhD, PE

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RESEARCH PAPERS (pre-prints & conference copies)

Self-driving, Automated, & Connected Vehicles (shared autonomous fleet operations, benefit-cost analysis, safety implications, behavioral & energy impacts)

Energy & Greenhouse Gas Emissions (fleet evolution, urban systems evolution, & energy policy)

Roadway Pricing (including credit-based congestion pricing, welfare estimates & land use effects)

Travel Demand Modeling (role of the built environment, Roy's Identity, trip scheduling, traveler welfare, trip table estimation)

Traffic Safety (crash analysis: count, severity, frequency models)

Transportation-Trade-Land Use Models & Analysis of Spatial Data (spatial econometrics, multiregional models, home choice, uncertainty propagation)

Vehicle Distinctions (passenger cars vs. light-duty trucks, SUVs, ownership, external costs)

Traffic Flow (flow-density relationships by vehicle type, approximate dynamic traffic assignment)

Property Valuation (homes & businesses, vis-a-vis locational accessibility)

Other Topics (economic impacts of bypasses, state-local coordination, sidewalk cross-sloping)

Google Citation of all Published Papers
Scopus Listing of Publications in Reverse Chronological Order

INSTRUCTION

CE311S: Elementary Statistics for Civil Engineering
(CE311S Lab Section Webpage + Quick-Practice Problem Set Modules + Signalized Intersection Simulations)

CE321: Transportation Systems

CE367G: Level II Capstone Course: Design & Evaluation of Ground-Based Transportation Systems, Microstation & GEOPAK Assignments

CE367: Highway Engineering & Advanced Geometric Design & Lab Assignments

CE391H & CRP384: Urban Transportation Planning - Travel Demand Forecasting

CE392T: Transport Economics

CE392E: Acquisition and Analysis of Transport Data

RESEARCH: Self-Driving, Automated, & Connected Vehicles

A compilation of CAV definitions, literature, and recommendations designed for the Dallas-Ft. Worth Metropolitan Planning Organization (NCTCOG) can be found here: http://smarttransport.solutions/ .

• Spatial Variation in Shared Ride-Hail Trips & Factors Contributing To Sharing

  With Matt Dean.

  
  
• Shared Autonomous Vehicle Fleet Operations for First-Mile Last-Mile Transit Connections with Dynamic Ride-Sharing

  Accepted for presentation at the 100th Annual Meeting of the Transportation Research Board and under review for publication in Transportation Research Part D. With Yantao Huang and Venu Garikapati.

  
  
• Strategic Charging of Shared Fully-Automated Electric Vehicle (SAEV) Fleets

  Accepted for presentation at the 100th Annual Meeting of the Transportation Research Board and under review for publication in Transportation Research Part C. With Matt Dean and Krishna Murthy Gurumurthy.

  
  
• Shared Autonomous Vehicle Fleet Performance: Impacts of Parking Limitations and Trip Densities

  Accepted for presentation at the 100th Annual Meeting of the Transportation Research Board. Transportation Research Part D 89: 102577. With Haonan Yan and Krishna Murthy Gurumurthy.

  
  
• Strategic Evacuation for Regional Events: With and Without Autonomous Vehicles

  Under review for publication in Transportation Research Record and accepted for presentation at the 100th Annual Meeting of the Transportation Research Board. With Jooyong Lee.

  
  
• Vehicles That Drive Themselves: What to Expect with Autonomous Vehicles

  Forthcoming in Encyclopaedia of Transportation (Ed. Roger Vickerman), Elsevier. With Michele Simoni.

  
  
• SAV Operations on A Bus Line Corridor: Travel Demand, Service Frequency and Vehicle Size

  Presented at the Bridging Transportation Researchers conference, August 2020. Accepted for presentation at the 100th Annual Meeting of the Transportation Research Board. With Yantao Huang & Long Truong.

  
  
• How Much Does Greater Trip Demand and Aggregation at Stops Improve Dynamic Ride-Sharing in Shared Autonomous Vehicle Systems?

  Under review for publication in Transportation Research Part A. Presented at the Bridging Transportation Researchers conference, August 2020. With K. Murthy Gurumurthy.

  
  
• Anticipating Land Use Impacts of Self-Driving Vehicles in the Austin, Texas Region

  Presented at the Bridging Transportation Researchers conference, August 2020. J of Transportation and Land Use 13 (1), 185-205 (2020). With Tyler Wellik.

  
  
• An Optimization-Based Strategy for Shared Autonomous Vehicle Fleet Repositioning

  Accepted for presentation at the 6th International Conference on Vehicle Technology and Intelligent Transport Systems, Prague, Czech Republic, May 2-4 (deferred, due to COVID-19), 2020. Presented at the Bridging Transportation Researchers conference, August 2020. With Felipe de Souza, K. Murthy Gurumurthy, and Joshua Auld.

  
  
• A Repositioning Method for Shared Autonomous Vehicles Operation

  Accepted for presentation at the 9th International Workshop on Agent-based Mobility, Traffic and Transportation Models, Methodologies and Applications (ABMTRANS), Warsaw, Poland, April 6-9, 2020 (cancelled due to COVID-19). Procedia Computer Science 170: 791-798, 2020. With Felipe de Souza, K. Murthy Gurumurthy, and Joshua Auld.

  
  
• Use of Shared Automated Vehicles for First-Mile Last-Mile Service:Micro-Simulation of Rail-Transit Connections in Austin, Texas

  Forthcoming in Transportation Research Record (2020). With Yantao Huang, Venu Garikapati, Lei Zhu and Stanley Young.

  
  
• A System of Shared Autonomous Vehicles for Chicago: Understanding the Effect of Geofencing the Service

  Under review for publication in J of Transportation and Land Use (2020). Accepted for presentation at the 100th Annual Meeting of the Transportation Research Board. With K. Murthy Gurumurthy and Joshua Auld.

  
  
• Sharing Vehicles & Sharing Rides in Real Time: Opportunities for Self-Driving Fleets

  Chapter 4 in Advances in Transport Policy and Planning: The Sharing Economy and the Relevance for Transport (Ed. Elliott Fishman, 2019): 59-85. With K. Murthy Gurumurthy and Benjamin Loeb.

  
  
• Impacts of Shared Automated Vehicles on Airport Access and Operations, with Opportunities for Revenue Recovery: Case Study of Austin, Texas

  Presented at the 99th Annual Meeting of the Transportation Research Board (2020) & under review for publication in Transportation Research Part A (2020). With K. Murthy Gurumurthy.

  
  
• First-Mile-Last-Mile Collector-Distributor System Using Shared Autonomous Mobility

  Transportation Research Record 2674(10): 638-647, (2020). With K. Murthy Gurumurthy and Natalia Zuniga-Garcia.

  
  
• Agent-Based Simulation for Shared Autonomous Vehicle Use Across the Minneapolis-Saint Paul Region

  Under review for publication in Transportation Research Part D (2020). With Haonan Yan and K. Murthy Gurumurthy.

  
  
• Benefits & Costs of Ride-sharing in Shared Automated Vehicles across Austin, Texas: Opportunities for Congestion Pricing

  Published in Transportation Research Record No. 2673 (6): 548-556 (2019). DOI 10.1177/0361198119850785 With K. Murthy Gurumurthy & Michele Simoni.

  
  
• How Does the Built Environment Affect Interest in the Ownership & Use of Self-Driving Vehicles?

  Published in J of Transport Geography 78: 115-134 (2019). With Adam Nodjomian.

  
  
• Energy & Emissions Implications of Self-Driving Vehicles

  Presented at the 98th Annual Meeting of the Transportation Research Board (2019). With Jooyong Lee.

  
  
• Development of Traffic-based Congestion Pricing and Its Application to Automated Vehicles

  Transportation Research Record No. 2673 (issue 6: 536-547) (2019). With Jooyong Lee.

  
  
• How Will Self-Driving Vehicles Affect U.S. Megaregion Traffic? The Case of the Texas Triangle

  Presented at the 98th Annual Meeting of the Transportation Research Board (2019) & forthcoming in Research in Transportation Economics Special Issue (2019). With Yantao Huang & Neil Quarles.

  
  
• Modeling Americans' Autonomous Vehicle Preferences: A Focus on Dynamic Ride-Sharing, Privacy, & Long-Distance Mode Choices

  Published in Technological Forecasting and Social Change 150 (2019 DOI & 2020 bound version). With K. Murthy Gurumurthy.

  
  
• America's Fleet Evolution in an Automated Future

  Presented at the 99th Annual Meeting of the Transportation Research Board (2020), and under review for publication in Research in Transportation Economics (2019). With Neil Quarles & Jooyong Lee. Semi-related podcast for K-12 Educators & Students interested in AV topics at https://soundcloud.com/piuswong/autonomous-vehicles-now-and-later.

  
  
• Analyzing the Dynamic Ride-Sharing Potential for Shared Autonomous Vehicle Fleets using Cellphone Data from Orlando, Florida

  Computers, Environment and Urban Systems 71: 177-185 (2018). With K. Murthy Gurumurthy.

  
  
• Americans’ Plans for Acquiring & Using Electric, Shared & Self-Driving Vehicles

  Presented at the 99th Annual Meeting of the Transportation Research Board (2020), forthcoming as a book chapter in Emerald "Transport and Sustainability" Series (2020). With Neil Quarles & Jooyong Lee. Related podcast with Fred Fishkin at https://soundcloud.com/smartdrivingcar/smart-driving-cars-podcast-episode-5 (minutes 15 through 27).

  
  
• Fleet Performance & Cost Evaluation of a Shared Autonomous Electric Vehicle (SAEV) Fleet: A Case Study for Austin, Texas

  Transportation Research Part A 121: 374-385 (2019). With Ben Loeb. Research was shared in part of this San Jose Samsung seminar, delivered by Kockelman in July 2018: https://www.samsung.com/us/ssic/session/anticipating-a-world-of-self-driving-vehicles/

  
  
• Shared Autonomous Electric Vehicle (SAEV) Operations across the Austin, Texas Network with a Focus on Charging Infrastructure Decisions

  Published in Transportation Research Part C 89: 222-233 (2018). With Ben Loeb and Jun Liu.

  
  
• Tracking a System of Shared Autonomous Vehicles across the Austin, Texas Network using Agent-Based Simulation

  Transportation 44 (6): 1261-1278 (2017). With Jun Liu, Patrick Boesch, and Francesco Ciari.

  
  
• Congestion Pricing in a World of Self-Driving Vehicles: An Analysis of Different Strategies in Alternative Future Scenarios

  Transportation Research Part C 98: 167-185 (2019). With Michele Simoni, K. Murthy Gurumurthy & Joschka Bischoff.

  
  
• Management of a Shared, Autonomous Electric Vehicle Fleet: Implications of Pricing Schemes

  Transportation Research Record No. 2572: 37-46 (2016) DOI 10.3141/2572-05. With Donna Chen.

  
  
• Operations of a Shared, Autonomous, Electric Vehicle (SAEV) Fleet: Implications of Vehicle & Charging Infrastructure Decisions 

  Transportation Research Part A 94: 243-254 (2016). With Donna Chen & Josiah Hanna.

  
  
• Impact of Vehicle Automation and Electric Propulsion on Production Costs for Mobility Services Worldwide

  Transportation Research Part A 138: 105-126 (2020). With Henrik Becker, K Murthy Gurumurthy, Kay Axhausen, and others.

  
  
• What Will Autonomous Trucking Do to U.S. Trade Flows? Application of the Random-Utility-Based Multi-Regional Input-Output Model

  Published in Transportation 47(5), 2529-2556 (2019) DOI 10.1007/s11116-019-10027-5. With Yantao Huang.

  
  
• Forecasting Americans' Long-Term Adoption of Connected and Autonomous Vehicle Technologies

  Transportation Research Part A 95: 49-63 (2017). With Prateek Bansal.

  
  
• Are We Ready to Embrace Connected & Self-Driving Vehicles?  A Case Study of Texans

  Transportation 44: 1-35 (2016). With Prateek Bansal.

  
  
• Assessing Public Opinions of and Interest in New Vehicle Technologies: An Austin Perspective

  Transportation Research Part C 67: 1-14 (2016). With Prateek Bansal & Amit Singh.

  
  
• The Environmental Implications of Shared Autonomous Vehicles, Using Agent-Based Model Simulation

  Transportation Research Part C 40: 1-13 (2014). With Dan Fagnant.

  
  
• Preparing a Nation for Autonomous Vehicles: Opportunities, Barriers and Policy Recommendations

  Transportation Research Part A 77: 167-181 (2015). Also available, the full Eno Award report. With Dan Fagnant.

  
  
• Operations of A Shared Autonomous Vehicle Fleet for the Austin, Texas Market

  Transportation Research Record No. 2536: 98-106 (2015). With Dan Fagnant and Prateek Bansal.

  
  
• Dynamic Ride-Sharing and Optimal Fleet Sizing for a System of Shared Autonomous Vehicles in Austin, Texas

  Transportation 45: 1-16 (2016). With Dan Fagnant.

  
  
• A General Framework for Modeling Shared Autonomous Vehicles with Dynamic Network-Loading and Dynamic Ride-Sharing Application

  Computers, Environment and Urban Systems 64: 373-383 (2017). With Michael Levin, Stephen Boyles, & Tianxin Li.

  
  
• Anticipating Long-Distance Travel Shifts due to Self-Driving Vehicles

  J of Transport Geography 82 (October 2019 DOI, 2020 printing). With Ken Perrine & Yantao Huang.

  
  
• Long-Distance Travel Mode Shifts due to Automated Vehicles

  Transportation Research Record No. 2566 (2016), DOI 10.3141/2566-01. With Jeffrey LaMondia, Dan Fagnant, Hongyang Qu, and Jackson Barrett.

  
  
• Valuing the Safety Benefits of Connected and Automated Vehicle Technologies

  Presented at the 95th Annual Meeting of the Transportation Research Board (2016), and published in Smart Transport for Cities & Nations: The Rise of Self-Driving & Connected Vehicles (2018, eds. Kara Kockelman & Stephen Boyles). With Tianxin Li.

  
  
• Anticipating the Emissions Impacts of Autonomous Vehicles Using the MOVES Model

  Presented at the 96th Annual Meeting of the Transportation Research Board (2017) and published inSmart Transport for Cities & Nations: The Rise of Self-Driving & Connected Vehicles 2018, eds. Kara Kockelman & Stephen Boyles). With Jun Liu & Aqshems Nichols.

  
  
• Economic Effects of Autonomous Vehicles

  Transportation Research Record No. 2606: 106-114 (2017). With Lewis Clements.

  
  
• Anticipating the Regional Impacts of Connected and Automated Vehicle Travel in Austin, Texas

  J of Urban Planning & Development 144 (4) (2018). With Yong Zhao.

  
  
• Costs & Benefits of Electrifying & Automating U.S. Bus Fleets

  Presented at the 97th Annual Meeting of the Transportation Research Board (2018), presented at the Bridging Transportation Researchers conference, August 2020, and published in Sustainability 12 (10) (2020). With Neil Quarles & Moataz Mohamed.

  
  
• Making the Most of Curb Spaces in a World of Shared Autonomous Vehicles: A Case Study of Austin, Texas

  Published in Smart Transport for Cities & Nations: The Rise of Self-Driving & Connected Vehicles (2018, eds. Kara Kockelman & Stephen Boyles). With Qinglu Ma and Marc Segal.

  
  
• Design and Implementation of a Shared Autonomous Vehicle System for Austin, Texas

  Presented at the 95th Annual Meeting of the Transportation Research Board (2016), and published in Smart Transport for Cities & Nations: The Rise of Self-Driving & Connected Vehicles (2018, eds. Kara Kockelman & Stephen Boyles). With Marc Segal.

  
  
• Smart Transport for Cities & Nations: The Rise of Self-Driving & Connected Vehicles

  With co-editor Steve Boyles. Chapters by Guni Sharon, Peter Stone, Lisa Loftus-Otway, Wendy Wagner, Jun Liu, Dan Fagnant, Paul Avery, Tianxin Li, Marc Segal, and many others (2018). Complete book available for $52 on Amazon.

  
  
• Bringing Smart Transport to Texas, Final Report on TxDOT Project 0-6838, plus Project Overview Video, Report Appendices, & Technology Demonstration Details

  With Steve Boyles, Chris Claudel, Dan Fagnant, Paul Avery, Lisa Loftus-Otway, Peter Stone, Michael Levin, Yong Zhao, & many other teammates.

  
  

• SxSW SLIDESHOW: Assimilating Self-Driving Cars into Society, by Kara Kockelman & Lisa Loftus-Otway (March 12, 2017)

  
  

RESEARCH: Energy & Greenhouse Gas Emissions

• The Impact of Vehicle Electrification and Autonomous Vehicles on Air Quality in the United States

  With Abiola Lawal, Jooyong Lee, Huizhong Shen, Yilin Chen & Armistead Russell.

  
  
• Where to First Electrify Bus Transit Routes: Case Study for Austin, Texas

  Presented at the 99th Annual Meeting of the Transportation Research Board (2020). With Jugal Amodwala.

  
  
• Utility-Transit Nexus: Leveraging Intelligently Charged Electrified Transit to Support A Renewable Energy Grid

  Presented at the 99th Annual Meeting of the Transportation Research Board (2020) and under review for publication in J of Renewable and Sustainable Energy Review (2020). With Tyler Wellik, Joseph Griffin, and Moataz Mohamed.

  
  
• Life Cycle Analysis of Vertical Take-Off and Landing Vehicles

  Presented at the Bridging Transportation Researchers conference (January 2020). Accepted for presentation at the 100th Annual Meeting of the Transportation Research Board. With Khashayar Khavarian.

  
  
• Reducing Greenhouse Gas Emissions from Long-Distance Travel Business: How Far Can We Go?

  Presented at the 99th Annual Meeting of the Transportation Research Board (2020). With Ruohan Li and Jooyong Lee.

  
  
• Electric Vehicle Charging Station Locations: Recognizing Elastic Demand and User Equilibrium

  Published in Transportation Research Part D 78: 102179 (2020). With Yantao Huang.

  
  
• Energy & Emissions Implications of Self-Driving Vehicles

  Presented at the 98th Annual Meeting of the Transportation Research Board (2019). With Jooyong Lee.

  
  
• Optimal Locations of U.S. Fast-Charging Stations for Long-Distance Trip Completion by Battery Electric Vehicles

  J of Cleaner Production 214: 452-461 (2019). With Yawei He & Ken Perrine. Also discussed in NPR Science Friday interview with Ira Flatow on Dec. 15, 2017: Steering Toward Greener Transportation.

  
  
• Anticipating the Emissions Impacts of Autonomous Vehicles Using the MOVES Model

  Published in Smart Transport for Cities & Nations: The Rise of Self-Driving & Connected Vehicles (2018, eds. Kara Kockelman & Stephen Boyles). With Jun Liu & Aqshems Nichols.

  
  
• Fleet Performance & Cost Evaluation of a Shared Autonomous Electric Vehicle (SAEV) Fleet: A Case Study for Austin, Texas

  Transportation Research Part A 121: 374-385 (2019). With Ben Loeb.

  
  
• Shared Autonomous Electric Vehicle (SAEV) Operations across the Austin, Texas Network with a Focus on Charging Infrastructure Decisions

  Published in Transportation Research Part C 89: 222-233 (2018). With Ben Loeb & Jun Liu.

  
  
• Emissions & Noise Mitigation through Use of Electric Motorcycles

  Transportation Safety & Environment 1: 164-175 (2019). With Mike Hernandez, James Lentz, & Jooyong Lee.

  
  
• Emissions and Exposure Costs of Electric versus Conventional Vehicles: A Case Study for Texas

  International J of Sustainable Transportation 11 (7): 486-492 (2017). With Matt Reiter.

  
  
• Air Quality Impacts of Electric Vehicle Adoption in Texas

  Transportation Research Part D 34: 208-218 (2015). With Brice Nichols & Matthew Reiter.

  
  
• Where Are the Electric Vehicles? A Spatial Model for Vehicle-Choice Count Data

  J of Transport Geography 43: 181-188 (2015). With Donna Chen and Yiyi Wang.

  
  
• Hybrid Electric Vehicle Ownership and Fuel Economy Across Texas: An Application of Spatial Models

  Transportation Research Record No. 2495: 53-64 (2015). With Prateek Bansal and Yiyi Wang.

  
  
• The Environmental Implications of Shared Autonomous Vehicles, Using Agent-Based Model Simulation

  Transportation Research Part C 40: 1-13 (2014). With Dan Fagnant.

  
  
• Dynamic Ride-Sharing and Optimal Fleet Sizing for a System of Shared Autonomous Vehicles in Austin, Texas

  Transportation 45: 1-16 (2016). With Dan Fagnant.

  
  
• Management of a Shared, Autonomous Electric Vehicle Fleet: Implications of Pricing Schemes

  Transportation Research Record No. 2572: 37-46 (2016) DOI 10.3141/2572-05. With Donna Chen.

  
  
• Operations of a Shared, Autonomous, Electric Vehicle (SAEV) Fleet: Implications of Vehicle & Charging Infrastructure Decisions

  Transportation Research Part A 94: 243-254 (2016). With Donna Chen and Josiah Hanna.

  
  
• Locating Electric Vehicle Charging Stations: Parking-Based Assignment Method for Seattle, Washington

  Transportation Research Record 1254: 28-36 (2013). With Donna Chen and Moby Khan.

  
  
• Evolution of the Household Vehicle Fleet: Anticipating Fleet Composition and PHEV Adoption in Austin, Texas

  Transportation Research Part A 45 (8): 707-720 (2011). With Sashank Musti.

  
  
• Evolution of the Light-Duty-Vehicle Fleet: Anticipating Adoption of Plug-In Hybrid Electric Vehicles and Greenhouse Gas Emissions Across the U.S. Fleet

  Transportation Research Record No. 2252: 107-117 (2011). With Binny Paul & Sashank Musti.

  
  
• Predicting the Market Potential of Plug-In Electric Vehicles Using Multiday GPS Data

  Energy Policy 46: 225-233 (2012). With Mobashwir (Moby) Khan.NPR Science Friday interview with Ira Flatow on Dec. 15, 2017: Steering Toward Greener Transportation. >br>

• Electrified Vehicle Technology Trends, Infrastructure Implications, and Cost Comparisons

  J of the Transportation Research Forum 51 (1): 35-51 (2012). With Dave Tuttle.

  
  
• GHG Emissions Control Options: Opportunities for Conservation

  Report Commissioned by the National Academy of Sciences (NAS) for the Committee for the Study on the Relationships Among Development Patterns, VMT, and Energy Conservation. (2008) With Matt Bomberg, Melissa Thompson, and Charlotte Whitehead.Related slideshow presented in Irvine, CA for NAS in Nov. 2011, titled "Urban Planning, Land Use, and Vehicle Technologies to Reduce GHG Emissions in Cities."

  
  
• Urban Form & Life-Cycle Energy Considerations: Case Studies at the City Scale

  J of Transportation and Land Use 8 (3): 1-15 (2015). With Brice Nichols.

  
  
• Life-Cycle Energy Implications of Different Residential Settings: Recognizing Buildings, Travel and Public Infrastructure

  Energy Policy 68: 232-242 (2014). With Brice Nichols.

  
  
• Forecasting Greenhouse Gas Emissions from Urban Regions: Microsimulation of Land Use and Transport Patterns in Austin, Texas

  Journal of Transport Geography  33 (2013), & presented at the 89th Annual Meeting of the Transportation Research Board (2010). With Sumala Tirumalachetty and Brice Nichols.

  
  
• Micro-Simulation Models of Urban Regions: Anticipating Greenhouse Gas Emissions from Housing & Transport in Austin, Texas

  Presented at the 88th Annual Meeting of the Transportation Research Board (2009). With Sumala Tirumalachetty & Saurabh Kumar.

  
  
• Transportation and Land Use Solutions for Low-Carbon Cities

  Presented at the NSF’s U.S.-China Workshop on Pathways to Low Carbon Cities, at Hong Kong Polytechnic University, December 13-14 (2010).

  
  
• Household Energy Use & Travel: Opportunities for Behavioral Change

  Transportation Research Part D 16 (1): 46-56 (2011).With Sashank Musti & Katherine Kortum.

  
  
• Carsharing’s Life-cycle Impacts on Energy Use and Greenhouse Gas Emissions

  Transportation Research Part D 47: 276-284. (2016). With T. Donna Chen.

  
  
• Americans' Travel Choices and their Relative Contributions to Climate Change: What Near-Term Behavioral Shifts Will Buy Us, and Opportunities for Meeting Carbon Targets

  Journal of Urban Planning & Development 137 (2): 91-100 (2011). With Melissa Thompson & Charlotte Whitehead.

  
  
• The Welfare Implications of Carbon Taxes and Carbon Caps: A Look at U.S. Households

  Published as a chapter of Household Energy: Economics, Consumption and Efficiency (NOVA, 2011). With Sumala Tirumalachetty.

  
  
• GHG Emissions Control Options: Assessing Transportation & Electricity Generation Technologies & Policies to Stabilize Climate Change

  Presented at the 88th Annual Meeting of the Transportation Research Board (2009), & published as a chapter of Energy Consumption: Impacts of Human Activity, Current and Future Challenges, Environmental and Socio-economic Effects (NOVA, 2013). With Matt Bomberg and Melissa Thompson.

  
  
• Traveler Response to the 2005 Gas Price Spike  

  Presented at the 86th Annual Meeting of the Transportation Research Board (2007), & published as a chapter in Mendez & Pena's (Eds.) Household Energy: Economics, Consumption and Efficiency (NOVA, 2011). With Matthew Bomberg.

  
  
• The Problem of Cold Starts: A Closer look at Mobile Source Emissions Levels

  Transportation Research Part D 43: 123-132 (2016). With Matthew Reiter.

  
  

RESEARCH: Roadway Pricing

• Bringing the Efficiency of Electricity Market Mechanisms to Multimodal Mobility across Congested Transportation Systems

  Transportation Research Part A 131: 58-69 (2020), https://doi.org/10.1016/j.tra.2019.09.021. With Arash Behestian, Richard Geddes, Omid Rouhani, Peter Cramton, Axel Ockenfels, & Wooseok Do.

  
  
• Traffic and Welfare Impacts of Credit-Based Congestion Pricing Applications: An Austin Case Study

  Transportation Research Record (2020). With Vivian (Weijia) Li and Yantao Huang.

  
  
• Benefits & Costs of Ride-sharing in Shared Automated Vehicles across Austin, Texas: Opportunities for Congestion Pricing

  Transportation Research Record No. 2673 (issue 6) (2019). With K. Murthy Gurumurthy & Michele Simoni.

  
  
• Development of Traffic-based Congestion Pricing and Its Application to Automated Vehicles

  Transportation Research Record No. 2673 (issue 6) (2019). With Jooyong Lee.

  
  
• Technologies for Congestion Pricing

  Forthcoming in Research in Transportation Economics Special Issue (2020). With Lewis Clements & William Alexander.

  
  
• Congestion Pricing in a World of Self-Driving Vehicles: An Analysis of Different Strategies in Alternative Future Scenarios

  Transportation Research Part C 98: 167-185 (2019) With Michele Simoni, K. Murthy Gurumurthy & Joschka Bischoff.

  
  
• The Economics of Transportation Systems: A Reference for Practitioners (website with Reference & lessons/tutorials)

  Original Reference developed for the Texas Department of Transportation (2012), with Donna Chen & others.

  
  
• NPR Interview Recording, on Topic of Tolling (Aired March 3, 2014, on Here and Now with Meghna Chakrabarti)
  
  
• Credit-Based Congestion Pricing: A Dallas-Fort Worth Application

  Presented at the 85th Annual Meeting of the Transportation Research Board (2006) and published in Transport Policy 15 (1): 23-32 (2008). With Pradeep Gulipalli. (Also, see UT News Story & pamphlet describing CBCP.)

  
  
• Congestion Pricing under Operational, Supply-Side Uncertainty

  Transportation Research Part C 18 (4): 519-535. (2010) With Stephen Boyles and Travis Waller.

  
  
• Road Pricing Simulations: Traffic, Land Use and Welfare Impacts for Austin, Texas

  Published in Transportation Planning & Technology 29 (1): 1-23 (2006). With Surabhi Gupta and Sukumar Kalmanje.

  
  
• Anticipating New Highway Impacts: Opportunities for Welfare Analysis and Credit-Based Congestion Pricing

  Transportation Research Part A 45 (8): 825-838 (2011). With Jason Lemp.

  
  
• Credit-Based Congestion Pricing: Expert Expectations and Guidelines for Application

  Published in J of the Transportation Research Forum 47 (2): 5-20 (2005). With Pradeep Gulipalli and Sukumar Kalmanje.

  
  
• Congestion Pricing Technologies: Synthesis and an Evaluation Framework

  Chapter 4 in New Transportation Research Progress (pp. 121-142), Filip Gustavsson (Ed.), Nova Publishers (2007). And presented at the 84th Annual Meeting of the Transportation Research Board (2005), with Satish Ukkusuri, Ampol Karoonsoontawong, and S. Travis Waller.

  
  
• Credit-Based Congestion Pricing: Travel, Land Value, & Welfare Impacts

  Transportation Research Record No: 1864 45-53 (2004). With Sukumar Kalmanje.

  
  
• Credit-Based Congestion Pricing: A Proposed Policy and the Public's Response

  Transportation Research 39A: 671-690 (2005). With Sukumar Kalmanje. Also: Presentation to City of Austin & TxDOT Turnpike Authority & copy of On-line Survey.

  
  
• On-Line Marginal Cost Pricing across Networks: Incorporating Heterogeneous Users & Stochastic Equilibrium

  Transportation Research 40B (5): 424-435 (2006). With Yong Zhao.

  
  
• Congestion Pricing & Roadspace Rationing: An Application to the San Francisco Bay Bridge Corridor

  Transportation Research 36A (5): 403-417 (2002). With Katsuhiko Nakamura.

  
  
• Understanding & Accommodating Risk & Uncertainty in Toll Road Projects: A Review of the Literature

  Transportation Research Record No. 2132: 106-112 (2009). With Jason Lemp.

  
  
• Variations in Toll Road Impacts: Case Studies from Texas

  Journal of the Transportation Research Forum 48 (2): 5-22 (2009). With Sukumar Kalmanje.

  
  
• Public Perceptions of Toll Roads: A Survey of the Texas Perspective

  Transportation Research 40A: 888-902 (2006). With Kaethe Podgorski. *Survey instrument *

  
  
• Public Perceptions of Pricing Existing Roads and Other Transportation Policies: The Texas Perspective

  Journal of the Transportation Research Forum 48 (3): 19-38 (2009), and presented at the 85th Annual Meeting of the Transportation Research Board (2006). With Kaethe Podgorski, Michelle Bina, and Shashank Gadda.

  
  
• A Cordon Charge for the District of Columbia: A Solution to DC's Fiscal Problems and the Region's Congestion?

  Presented at the 86th Annual Meeting of the Transportation Research Board (2007). With Alexander Marks.

  
  
• A Simulation-based Approximation Algorithm for Dynamic Marginal Cost Pricing

  J of the Transportation Research Forum 47 (4): 81-99 (2008). With Ampol Karoonsoontawong, Satish Ukkusuri, and S. Travis Waller.

  
  

RESEARCH: Travel Demand

• Recent Progress in Activity-Based Travel Demand Modelling: Rising Data and Applicability

  Chapter in Transportation Systems for Smart, Sustainable, Inclusive and Secure Cities, 2020. With Atousa Tjaddini, Geoffrey Rose, and Hai Vu.

  
  
• Applying Utility-Based Accessibility Measures in Nairobi Kenya: Comparing Accessibility Impacts of Transportation And Land Use Improvement With Logsums

  With Louis Alcorn.

  
  
• Preparing Data for Microsimulation of Smart Transport Systems: A Tool for Exploiting Existing Travel Model Results & Open-Source Data

  Published in Smart Transport for Cities & Nations: The Rise of Self-Driving & Connected Vehicles 2018, eds. Kara Kockelman & Stephen Boyles). With Jun Liu.

  
  
• Modeling Americans' Autonomous Vehicle Preferences: A Focus on Dynamic Ride-sharing, Privacy, and Long-Distance Mode Choices

  Technological Forecasting & Social Change 150 (2018). With Krishna Murthy Gurumurthy.

  
  
• What Matters Most in Demand Model Specifications: A Comparison of Outputs

  Journal of the Transportation Research Forum 52 (1): 71-89 (2015). With Donna Chen and Yong Zhao.

  
  
• Transportation Project Outcomes Under Uncertainty: An Examination of Benefit-Cost Ratios and Other Impacts

  Transportation Research Record 2303: 89-98 (2012). With Dan Fagnant.

  
  
• Anticipating Roadway Expansion and Tolling Impacts: Toolkit for Abstracted Networks

  Journal of Urban Planning and Development 140(1) (2014). With Dan Fagnant.
  ** REFER TO PROJECT EVALUATION TOOLKIT (PET) WEBSITE FOR FREE DOWNLOADS OF ALL CODE (UNCOMPILED) & DATA INPUTS (FOR AUSTIN APPLICATIONS) **  And please see http://vimeo.com/62652944 for a video introduction.

  
  
• Welfare Analysis Using Logsum Differences Versus Rule of Half: Series of Case Studies 

  Transportation Research Record No. 2530: 78-83 (2015). With Shuhong Ma and Dan Fagnant.

  
  
• A Two-Stage Equilibrium Travel Demand Model for Sketch Planning

  Transportation Research Record No. 2302: 1-13 (2012). With Chi Xie.

  
  
• Strategic Sampling for Large Choice Sets in Estimation and Application

  Transportation Research Part A 46: 602-613 (2012). With Jason Lemp.

  
  
• A Bivariate Multinomial Probit Model for Trip Scheduling: Bayesian Analysis of the Work Tour

  Transportation Science 46: 405-424 (2012). With Jason Lemp and Paul Damien.

  
  
• Anticipating Welfare Impacts via Travel Demand Forecasting Models: Comparison of Aggregate and Activity-Based Approaches for the Austin, Texas Region

  Transportation Research Record No. 2133: 11-22 (2009). With Jason Lemp.

  
  
• From Aggregate Methods to Microsimulation: Assessing the Benefits of Microscopic Activity-Based Models of Travel Demand

  Transportation Research Record No. 1994: 80-88 (2007). With Jason Lemp and Laura McWethy.

  
  
• The Continuous Cross-Nested Logit Model: Formulation and Application for Departure Time Choice

  Transportation Research Part B 44 (5): 646-661 (2010). With Jason Lemp and Paul Damien.

  
  
• Empirical Investigation of the Continuous Logit for Departure Time Choice using Bayesian Methods

  Transportation Research Record No. 2165: 59-68 (2010). With Jason Lemp.

  
  
• Continuous Departure Time Models: A Bayesian Approach

  Transportation Research Record No. 2132: 13-24 (2009). With Shashank Gadda and Paul Damien.

  
  
• A Maximum-Entropy Least-Squares Estimator for Elastic Origin-Destination Trip Matrix Estimation

  Transportation Research Part B 45 (9): 825-838 (2011). With Chi Xie and S. Travis Waller.

  
  
• A Maximum Entropy Method for Subnetwork Origin-Destination Trip Matrix Estimation

  Published in Transportation Research Record No. 2196: 111-119 (2010). With Chi Xie and S. Travis Waller.

  
  
• Local Sensitivity Analysis of Forecast Uncertainty in a Random-Utility-Based Multi-Regional Input-Output Model

  J of the Transportation Research Forum 55 (2): 49-70 (2016). With Guangmin Wang.

  
  
• Three Methods for Anticipating and Understanding Uncertainty of Outputs from Transportation and Land Use Models

  Transportation Research Record No. 2672: 12-22 (2018). DOI 0.1177/0361198118801339. With Guangmin Wang.

  
  
• The Propagation of Uncertainty through Travel Demand Models

  Annals of Regional Science 36 (1): 145-163 (2002). With Yong Zhao.

  
  
• Travel Behavior as a Function of Accessibility, Land Use Mixing, and Land Use Balance: Evidence from the San Francisco Bay Area

  Transportation Research Record No. 1607: 117-125 (1997).

  
  
• New Approach for Travel Demand Modeling: Linking Roy's Identity to Discrete Choice

  Transportation Research 38B (5): 459-475 (2004). With Sriram Krishnamurthy.

  
  
• A Utility-Theory-Consistent System-of-Demand-Equations Approach to Household Travel Choice

  PhD Dissertation, University of California at Berkeley, Department of Civil and Environmental Engineering (1998). Also: “Application of a Utility-Theory-Consistent System-of-Demand-Equations Approach to Household Travel Choice” in Transportation Research Record No. 1676 (1999) & “A Model for Time- and Budget-Constrained Activity Demand Analysis ” in Transportation Research B (3): 255-269 (2001).

  
  
• Welfare Calculations in Discrete-Choice Settings: An Exploratory Analysis of Error Term Correlation with Finite Populations

  Transport Policy 19: 76-84 (2012). With Yong Zhao and Anders Karlstrom.

  
  
• Models for Anticipating Non-Motorized Travel Choices, and the Role of the Built Environment

  Transport Policy 35: 117-126 (2014). With Moby Khan and Xiaoxia Xiong.

  
  
• Effects of Smart Growth Policies on Travel Demand, SHRP Report S2-C16-RR-1

  Final report for the National Academy of Engineering Transportation Research Board's Strategic Highway Program (2014). With Resource Systems Group (RSG), Fehr & Peers, Robert Cervero, & Richard Kuzmyak.

  
  
• Travel Demand and the Three Ds: Density, Diversity, and Design.

  Transportation Research D, 2 (3): 199-219 (1997). With Robert Cervero.

  
  
• Which Matters More in Mode Choice: Income or Density?

  Compendium of Technical Papers. Institute of Transportation Engineers 65th Annual Meeting (1995).

  
  
• Pay-as-You-Drive Insurance: Its Impacts on Household Driving and Welfare

  Transportation Research Record No. 2450: 76-82 (2014). With Brice Nichols.

  
  
• Traveler Response to the 2005 Gas Price Spike

  Presented at the 86th Annual Meeting of the Transportation Research Board (2007) & published as a chapter in Mendez & Pena's (Eds.) Household Energy: Economics, Consumption and Efficiency (NOVA, 2011). With Matthew Bomberg.

  
  
• Predicting a Vehicle’s Distance Traveled from Short-Duration Data

  Published in Transport Findings (September 2019, https://doi.org/10.32866/10110). With Ruohan Li.

  
  
• Americans’ Time Use: A Focus on Women and Child-Rearing via Structural Equations Modeling

  Transportation Research Record No. 2163: 32-44 (2010). With Charlotte Whitehead Frei.

  
  

RESEARCH: Traffic Safety

• Predicting Pedestrian Crash Occurrence And Injury Severity In Texas

  Accepted for presentation at the 100th Annual Meeting of the Transportation Research Board. With Mashrur Rahman and Ken Perrine.

  
  
• An Analysis Of Pedestrian Crash Trends And Contributing Factors In Texas

  With Max Bernhardt. Under review for publication in Journal of Transport and Health.

  
  
• Modelling Low Animal-Vehicle Collision Counts across Large Networks

  Presented at the 99th Annual Meeting of the Transportation Research Board, in Washington D.C. (2020). With Zili Li & K Murthy Gurumurthy.

  
  
• Animal-Vehicle Collisions in Texas: How to Protect Travelers and Animals on Roadways

  Accident Analysis & Prevention 131: 157-170 (2019). With Devin Wilkins & Nan Jiang.

  
  
• Valuing the Safety Benefits of Connected and Automated Vehicle Technologies

  Presented at the 95th Annual Meeting of the Transportation Research Board (2016), and published in Smart Transport for Cities & Nations: The Rise of Self-Driving & Connected Vehicles (2018, eds. Kara Kockelman & Stephen Boyles). With Tianxin Li.

  
  
• Americans’ Crash Histories and Opinions on Safety Policy

  Transportation Research Record No. 2364: 12-22 (2013). With Donna Chen.

  
  
• Motorcycle Use in the United States: Crash Experiences, Safety Perspectives, and Countermeasures

  Journal of Transportation Safety & Security 7 (1): 20-39 (2015). With Dan Fagnant.

  
  
• Who Rides and Who Pays: A Comprehensive Assessment of the Costs and Benefits of Motorcycling in the United States

  Transportation Research Record No. 2388: 37-46 (2013). With Dan Fagnant and Brice Nichols.

• Aggressive Driving and Speeding

  Chapter 3 in Safe Mobility: Challenges, Methodology & Solutions (2018, eds. Dominique Lord & Simon Washington): 37-55. With Jianming Wang.

  
  
• A Conditional-Autoregressive Count Model for Pedestrian Crashes across Neighborhoods

  Accident Analysis & Prevention 60: 71-84 (2013). With Yiyi Wang.

  
  
• A Bayesian Semi-parametric Model to Estimate Relationships Between Crash Counts and Roadway Characteristics

  Transportation Research Part B 44(5): 699-715 (2010). With Tom Shively and Paul Damien.

  
  
• A Multivariate Poisson-Lognormal Regression Model for Prediction of Crash Counts by Severity, using Bayesian Methods

  Accident Analysis and Prevention 40: 964-975 (2008). With Jianming Ma and Paul Damien.

  
  
• Safety Impacts and Other Implications of Raised Speed Limits on High-Speed Roads

National Cooperative Highway Research Program (NCHRP) Report 17-23 (2006). With Jon Bottom, Young-Jun Kweon, Jianming Ma, and Xiaokun (Cara) Wang.



• Bayesian Multivariate Poisson Regression for Models of Injury Count, by SeveritY

  Transportation Research Record No. 1950: 24-34 (2006). With Jianming Ma.

  
  
• Crash Frequency and Severity Modeling Using Clustered Data from Washington State: Prediction of Optimal Speed Limits

  Proceedings of the IEEE Intelligent Transportation Systems Conference, Toronto (2006). With Jianming Ma.

  
  
• The Roles of Vehicle Footprint, Height, and Weight in Crash Outcomes: Application of a Heteroscedastic Ordered Probit Model

  Transportation Research Record No. 2280: 89-99 (2012). With Donna Chen.

  
  
• Analysis of Large Truck Crash Severity Using Heteroscedastic Ordered Probit Models

  Accident Analysis and Prevention 43 (1): 370–380 (2011). With Jason Lemp & Avinash Unnikrishnan.

  
  
• Occupant Injury Severity using a Heteroscedastic Ordered Logit Model: Distinguishing the Effects of Vehicle Weight and Type

  Transportation Research Record No. 1908: 195-204 (2005). With Xiaokun (Cara) Wang.

  
  
• The Safety Effects of Speed Limit Changes: Use of Panel Models, Including Speed, Use and Design Variables

  Transportation Research Record No. 1908: 148-158 (2005) With Young-Jun Kweon.

  
  
• Spatially Disaggregate Panel Models of Crash and Injury Count: The Effects of Speed Limits & Design

  Proceedings of the 83rd Annual Meeting of the Transportation Research Board (2004). With Young-Jun Kweon.

  
  
• Freeway Speeds and Speed Variations Preceding Crashes, Within and Across Lanes

Presented at the 83rd Annual Meeting of the Transportation Research Board (2004) and published in Journal of the Transportation Research Forum 46 (1): 43-62 (2007). With Jianming Ma.



• Anticipating Injury and Death: Controlling for New Variables on Southern California Highways

  Presented at the 83rd Annual Meeting of the Transportation Research Board (2004). With Jianming Ma.

  
  
• Driver Attitudes and Choices: Speed Limits, Seatbelt Use, and Drinking-and-Driving

  Presented at the 82nd Annual Meeting of the Transportation Research Board (2004) and published in Journal of the Transportation Research Forum 45 (3):39-56 (2006). With Young-Jun Kweon.

  
  
• Overall Injury Risk to Different Drivers: Combining Exposure, Frequency, and Severity Models

  Published in Accident Analysis and Prevention 35 (4): 313-321 (2003). With Young-Jun Kweon.

  
  
• Driver Injury Severity: An Application of Ordered Probit Model

  Published in Accident Analysis and Prevention 34 (3): 313-321 (2002). With Young-Jun Kweon.

  
  
• Modeling Crash and Fatality Counts along Mainlanes and Frontage Roads Across Texas: The Roles of Design, the Built Environment, and Weather

  Presented at the 93rd Annual Meeting of the Transportation Research Board (2014). With Jian Xu and Yiyi Wang.

  
  

RESEARCH: Land Use-Transportation-Trade Models & Analysis of Spatial Data

• Impact of Flextime on Departure Time Choice for Home-Based Commuting Trips in Austin, Texas

  Under review for publication in Transportation Research Record and accepted for presentation at the 100th Annual Meeting of the Transportation Research Board. With Mashrur Rahman and Krishna Murthy Gurumurthy.

  
  
• Anticipating Land Use Impacts of Self-Driving Vehicles in the Austin, Texas Region

  Presented at the Bridging Transportation Researchers conference, August 2020 and forthcoming in the J of Transportation and Land Use (2020). With Tyler Wellik.

  
  
• How Do Land Use Patterns Affect Ownership & Use of Self-Driving Vehicles?

  J of Transport Geography 78C: 115-134 (2019). With Adam Nodjomian.

  
  
• How Does Machine Learning Compare to Conventional Econometrics for Transport Data Sets? A Test of ML Vs MLE

  Presented at the Bridging Transportation Researchers conference (January 2020). Accepted for presentation at the 100th Annual Meeting of the Transportation Research Board. With Vivian (Weijia) Li.

  
  
• A Synthesis of Spatial Models for Multivariate Count Responses

  Chapter 14 in Regional Research Frontiers vol 2, with Yiyi Wang & Amir Jamali (2017): 221-237, eds. R. Jackson & P. Schaeffer.

  
  
• Predicting the Effects of the Panama Canal Expansion on U.S. Counties’ Production using the Random-Utility-Based Input-Output Model

  Working paper. With Junwei Yu and Guangmin Wang.

  
  
• City Land Use and Rent Dynamics with Location Externalities and Zoning Regulations

  Presented at the 95th Annual Meeting of the Transportation Research Board (2016). Chpater 9 in Innovations in Urban and Regional Systems: Contributions from GIS&T, Spatial Analysis and Location Modeling (Ed. Jean-Claude Thill): 185-212. With Wenjia (Kevin) Zhang (2016) & Jean-Claude Thill (2020).

  
  
• Congestion Pricing Effects on Firm and Household Location Choices in Monocentric & Polycentric Cities

  Regional Science & Urban Economics 58: 1-12 (2016). With Wenjia (Kevin) Zhang.

  
  
• Modeling Cities with Congestion and Agglomeration Externalities: The Efficiency of Congestion Tolls, Labor Subsidies, and Urban Growth Boundaries

  J of Urban Economics 95C: 64-86 (2016). With Wenjia (Kevin) Zhang.

  
  
• A Conditional-Autoregressive Count Model for Pedestrian Crashes across Neighborhoods

  Accident Analysis & Prevention 60: 71-84 (2013). With Yiyi Wang.

  
  
• The Impact of Weight Matrices on Parameter Estimation and Inference: A Case Study of Binary Response Using Land Use Data

  Journal of Transportation and Land Use 6 (3): 75-85 (2013). With Yiyi Wang and Xiaokun (Cara) Wang.

  
  
• Understanding Spatial Filtering for Analysis of Land Use-Transport Data

  Journal of Transport Geography 31 (2013). With Yiyi Yang and Xiaokun (Cara) Wang.

  
  
• Change in Land Use through Microsimulation of Market Dynamics: Agent-based Model of Land Development and Locator Bidding in Austin, Texas

  Transportation Research Record No. 2255: 125-136 (2011). With Brenda Zhou.

  
  
• A Spatial Autoregressive Multinomial Probit Model for Anticipating Land Use Change in Austin, Texas

  Annals of Regional Science 52: 251-278 (2014). With Yiyi Wang and Paul Damien.

  
  
• The Dynamic Spatial Multinomial Probit Model: Analysis of Land Use Change Using Parcel-Level Data

  Journal of Transport Geography 24: 77-88 (2012). With Xiaokun (Cara) Wang and Jason Lemp.

  
  
• Bayesian Inference for Ordered Response Data with a Dynamic Spatial-Ordered Probit Model

  Journal of Regional Science 49 (5): 877-913 (2009). With Xiaokun (Cara) Wang.

  
  
• Application of the Dynamic Spatial Ordered Probit Model: Patterns of Land Development Change in Austin, Texas

  Papers in Regional Science 88 (2): 345-366 (2009). With Xiaokun (Cara) Wang.

  
  
• Application of the Dynamic Spatial Ordered Probit Model: Patterns of Ozone Concentration in Austin, Texas

  Published in Transportation Research Record No. 2132: 13-24 (2009). With Xiaokun (Cara) Wang.

  
  
• Specification and Estimation of a Spatially and Temporally Autocorrelated Seemingly Unrelated Regression Model: Application to Crash Rates in China

  Transportation 34 (3): 281-300 (2007). With Xiaokun (Cara) Wang.

  
  
• Predicting the Distribution of Households and Employment: A Seemingly Unrelated Regression Model with Two Spatial Processes

  Journal of Transport Geography 17: 369-376 (2009). >With Brenda (Bin) Zhou.

  
  
• Tracking Land Cover Change in a Mixed Logit Model: Recognizing Temporal and Spatial Effects

  Transportation Research Record No. 1977: 112-120 (2006). With Xiaokun (Cara) Wang.

  
  
• Neighborhood Impacts on Land Use Change: A Multinomial Logit Model of Spatial Relationships

  Annals of Regional Science 42 (2): 321-340 (2008). With Bin (Brenda) Zhou.

  
  
• Anticipation of Land Use Change through Use of Geographically Weighted Regression Models for Discrete Response

  Published in Transportation Research Record No. 2245: 111-123 (2011). With Yiyi Wang & Xiaokun (Cara) Wang.

  
  
• Forecasting Network Data: Spatial Interpolation of Traffic Counts Using Texas Data

  Transportation Research Record No. 2105: 100-108 (2009). With Xiaokun (Cara) Wang.

  
  
• Micro-Simulation Models of Urban Regions: Anticipating Greenhouse Gas Emissions from Housing & Transport in Austin, Texas

  Presented at the 88th Annual Meeting of the Transportation Research Board (2009). With Sumala Tirumalachetty & Saurabh Kumar.

  
  
• Tracking the Size, Location and Interactions of Businesses: Microsimulation of Firm Behavior in Austin, Texas

  Transportation Research Record No. 2077: 113-121 (2008). With Saurabh Kumar.

  
  
• Microsimulation of Single-family Residential Land Use for Market Equilibria

  Proceedings of the TRB Innovations in Travel Demand Modeling Conference, Austin, Texas (2006). With Brenda (Bin) Zhou.

  
  
• Microsimulation of Residential Land Development and Household Location Choices: Bidding for Land in Austin, Texas

  Transportation Research Record No. 2077: 106-112 (2008). With Bin (Brenda) Zhou.

  
  
• Spatial Econometric Models for Panel Data: Incorporating Spatial and Temporal Data

  Transportation Research Record No 1902: 80-90 (2005). With Chris Frazier.

  
  
• Location Choice vis-a-vis Transportation: The Case of Recent Home Buyers

  Presented at the 11th International Conference of Travel Behavior Research, hosted by the International Association of Travel Behavior Research (IATBR) (Japan 2006) and published in The Expanding Sphere of Travel Behaviour Research, Kitamura, R. and T. Yoshii (Eds.) (2009). With Michelle Bina.

  
  
• Location Choice vis-a-vis Transportation: The Case of Apartment Dwellers

  Transportation Research Record No. 1977: 93-102 (2006). With Michelle Bina & Valdemar Warburg.

  
  
• Modeling the Choice of Residential Location and Home Type: Recent Movers in Austin, Texas

  Presented at the 87th Annual Meeting of the Transportation Research Board (2008). With Khandker Nurul Habib.

  
  
• Self-Selection in Home Choice: Use of Treatment Effects in Evaluating the Relationship between the Built Environment and Travel Behavior

  Transportation Research Record No. 2077: 54-61 (2008). With Brenda (Bin) Zhou.

  
  
• Tracking Transportation and Industrial Production Across a Nation: Applications of RUBMRIO Model for U.S. Trade Patterns

  Published in Transportation Research Record No. 2269: 99-109 (2012). Also presented at the November 2011 North American Meetings of the Regional Science Association International (RSAI). With Xiaochuan Du.

  
  
• The Introduction of Dynamic Features in a Random-Utility-Based Multiregional Input-Output Model of Trade, Production, and Location Choice

  Journal of the Transportation Research Forum 47 (1): 23-42 (2008). With Tian Huang.
  ** REFER TO RUBMRIO WEBSITE FOR FREE DOWNLOADS OF ALL CODE (UNCOMPILED) & DATA INPUTS (FOR TEXAS TRADE) **

  
  
• Evaluation of the Trans-Texas Corridor Proposal: Application and Enhancements of the Random-Utility-Based Multiregional Input-Output Model

  Journal of Transportation Engineering 132 (7): 531-539 (2006). With Natalia Ruiz-Juri.

  
  
• Extending the Random-Utility-Based Multiregional Input-Output Model: Incorporating Land Use Constraints, Domestic Demand & Network Congestion in a Model of Texas Trade

  Presented at the 83rd Annual Meeting of the Transportation Research Board (2004). With Natalia Ruiz-Juri.

  
  
• Tracking Land Use, Transport, and Industrial Production using Random-Utility Based Multiregional Input-Output Models: Applications for Texas Trade

  Journal of Transport Geography 13: 275-286 (2005). With Ling Jin, Yong Zhao, and Natalia Ruiz-Juri.

  
  
• The Random-Utility-Based Multiregional Input-Output Model: Solution Existence and Uniqueness

  Transportation Research 38B (9): 789-807 (2004). With Yong Zhao.

  
  
• Effects of Transportation and Land Use Policies on Air Quality: A Case Study in Austin, Texas

  Transportation Research Record No. 2158: 28-35 (2010). With Elena McDonald-Buller, Alba Webb, and Brenda Zhou.

  
  
• Predicting the Relative Impacts of Urban Development Policies and On-Road Vehicle Technologies on Air Quality in the United States: Modeling and Analysis of a Case Study in Austin, Texas

  Final Report for the U.S. Environmental Protection Agency (2008). With Elena McDonald-Buller, Brenda Zhou, Alba Webb, Barbara Parmenter & others.

  
  
• Lessons Learned in Developing & Applying Land Use Model Systems: A Parcel-Based Example

  Published in Transportation Research Record No. 2133: 75-82 (2009). With Brenda Zhou.

  
  
• Applications of Integrated Transport and Gravity-Based Land Use Models for Policy Analysis

  Transportation Research Record No. 2133: 123-132 (2009). With Brenda Zhou & Jason Lemp.
  ** REFER TO G-LUM WEBSITE FOR FREE DOWNLOADS OF ALL MATLAB CODE & DATA INPUTS (FOR AUSTIN, TEXAS) **

  
  
• Highway Improvement Project Rankings due to Uncertain Model Inputs: Application of Traditional Transportation and Land Use Models

  Journal of Urban Planning & Development 136 (4): 294-302 (2010). With Jennifer Duthie, Avinash Voruganti and Travis Waller.

  
  
• Propagation of Uncertainty in Transportation-Land Use Models: An Investigation of DRAM-EMPAL and UTPP Predictions in Austin, Texas

  Transportation Research Record No. 1831: 219-229 (2003). With Sriram Krishnamurthy.

  
  
• Uncertainty Propagation in an Integrated Land Use-Transport Modeling Framework: Output Variation via UrbanSim

  Transportation Research Record No. 1805: 128-135 (2002). With Anant Pradhan.

  
  
• An Application of Urbansim to the Austin, Texas Region: Integrated-Model Forecasts for the Year 2030

  Journal of Urban Planning and Development 137 (3): 238-247 (2011). With Siva Kakaraparthi.

  
  
• Visioning vs. Modeling: Analyzing the Land Use-Transportation Futures of Urban Regions

  Published in Journal of Urban Planning and Development 134 (3) (2008). With Jason Lemp, Brenda (Bin) Zhou, and Barbara Parmenter.

  
  
• Applications of Integrated Models of Land Use & Transport: A Comparison of ITLUP & UrbanSim

  Presented at the 54th Annual North American Meetings of the Regional Science Association International, Savannah, Georgia, November 2007. With Jen Duthie, Brenda (Bin) Zhou, and Varun Valsaraj.

  
  
• Minutes of Integrated Transport-Land Use Modeling Workshop for MPO Implementation

  Meeting of model developers and users at the North Central Texas Council of Government's (NCTCOG's) offices in Arlington, Texas, July 2010. With Brenda (Bin) Zhou and Sumala Tirumalachetty.

  
  
• Transportation and Land Use, Chapter 8 in Transportation Engineer's Handbook,2nd edition.

  Published by McGraw-Hill (2010). With Brenda (Bin) Zhou.

  
  

RESEARCH: Vehicle Distinctions

• Indian Vehicle Ownership and Travel Behaviors: A Case Study of Bangalore, Delhi and Kolkata

  Research in Transportation Economics 71: 2-8 (2018). With Prateek Bansal, William Schievelbein, and Scott Schauer-West.

  
  
• Indian Vehicle Ownership: Insights from Literature Review, Expert Interviews, and State-Level Modeling

  J of Transportation Research Forum 56 (2): 45-60 (2017). With Prateek Bansal.

  
  
• Microsimulating Automobile Markets: Evolution of Vehicle Holdings and Vehicle-Pricing Dynamics

  Published in Journal of the Transportation Research Forum 51 (2): 83-96 (2012). With Brent Selby.

  
  
• Quantifying the External Costs of Vehicle Use: Evidence from America's Top-Selling Light-Duty Models

  Published in Transportation Research Part D 13 (8): 491-504 (2008). With Jason Lemp.

  
  
• Effects of Light-Duty Trucks on the Capacity of Signalized Intersections

  Journal of Transportation Engineering 126 (6): 506-512 (2000). Also, described in Jan. 16, 2000, New York Times article. With Raheel Shabih.

  
  
• To LDT or Not to LDT: An Assessment of the Principal Impacts of Light-Duty Trucks

  Transportation Research Record No. 1738: 3-10 (2000).

  
  
• Behavioral Distinctions: The Use of Light-Duty Trucks and Passenger Cars

  Journal of Transportation and Statistics 3 (3): 47-60 (2000). With Yong Zhao.

  
  
• Opportunities for and Impacts of Carsharing: A Survey of the Austin, Texas Market

  Presented at the 87th Annual Meeting of the Transportation Research Board (2008) and published in International Journal of Sustainable Transport 5 (3): 135-152 (2011). With Brenda Zhou.

  
  
• Household Vehicle Ownership by Vehicle Type: Application of a Multivariate Negative Binomial Model

  Presented at the 81st Annual Meeting of the Transportation Research Board (2002). With Yong Zhao.

  
  

RESEARCH: Traffic Flow

• A Low-Cost GPS-Data-Enhanced Approach for Traffic Network Evaluations

  International Journal of Intelligent Transportation Systems Research 17 (1): 9-17 (2018 online publication, 2019 print version). With Qinglu Ma.

  
  
• A Direct-Demand Model for Bicycle Counts: The Impacts of Level of Service and Other Factors

  Environment and Planning B: Planning and Design 43 (1): 93-107 (2016). With Dan Fagnant.

  
  
• Spatial Prediction of AADT in Unmeasured Locations by Universal Kriging

  Presented at the 90th Annual Meeting of the Transportation Research Board (2010) and published in Journal of Transport Geography 29: 24-32 (2013). With Brent Selby.

  
  
• Forecasting Network Data: Spatial Interpolation of Traffic Counts Using Texas Data

  Published in Transportation Research Record No. 2105: 100-108 (2009).With Xiaokun (Cara) Wang.

  
  
• Estimates of AADT: Quantifying the Uncertainty

  Presented at the World Conference on Transportation Research, Berkeley, California (2007). With Shashank Gadda and Atul Magoon.

  
  
• Intersection Origin-Destination Flow Optimization Problem for Evacuation-Network Design

  Published in Transportation Research Record No. 2234: 105-115 (2011). With Chi Xie and S. Travis Waller.

  
  
• Modeling Traffic’s Flow-Density Relation: Accommodation of Multiple Flow Regimes and Traveler Types

  Transportation 24 (4): 363-374 (2001).

  
  
• Changes in the Flow-Density Relation due to Environmental, Vehicle, and Driver Characteristics,

  Transportation Research Record No. 1644: 47-56 (1998).

  
  
• Chaos Theory & Transportation Systems: An Instructional Example

  Published in Transportation Research Record No. 1897: 9-17 (2004). With Chris Frazier.

  
  
• A Comparison of Static and Dynamic Traffic Assignment Under Tolls in the Dallas-Fort Worth Region

  Presented at the 85th Annual Meeting of the Transportation Research Board (2006). With Steven Boyles, Satish Ukkusuri, and S. Travis Waller.

  
  

RESEARCH: Property Valuation

• Welfare Measures to Reflect Home Location Options When Transportation Systems are Modified

  J of the Transportation Research Forum (2016). With Shuhong Ma.

  
  
• Cost of Right-of-Way Acquisition: Recognizing the Impact of Condemnation Via a Switching Regression Model

  Journal of Infrastructure Systems 20 (4) (2014). With Xiaoxia Xiong.

  
  
• The Costs of Right of Way Acquisition: Methods and Models for Estimation

  Published in Journal of Transportation Engineering 131 (3): 193-204 (2005). With Jared Heiner.

  
  
• Right-of-Way Acquisition and Property Condemnation: A Comparison of U.S. State Laws

  Journal of the Transportation Research Forum 44 (3): 45-58 (2005). With Shadi Hakimi.

  
  
• Accessibility Indices: A Connection to Residential Land Prices and Location Choice

  Published in Transportation Research Record No. 1805: 25-34 (2002). With Issar Srour & Travis Dunn.

  
  
• Property Values and Highway Expansions: An Investigation of Timing, Size, Location, and Use Effects

  Published in Transportation Research Record No. 1812: 191-200 (2002). With Brian tenSiethoff.

  
  
• The Effects of Location Elements on Home Purchase Prices and Rents: Evidence from the San Francisco Bay Area

  Published in Transportation Research Record No. 1606: 40-50 (1997).

  
  
• The Value of Travel Savings, as Reflected in Housing Prices:

  A Study of Alameda County Homes (1997).

  
  

RESEARCH: Other Topics

• How Does Machine Learning Compare to Conventional Econometrics for Transport Data Sets? A Test of ML Vs MLE

  Presented at the Bridging Transportation Researchers conference (January 2020). Accepted for presentation at the 100th Annual Meeting of the Transportation Research Board. With Vivian (Weijia) Li.

  
  
• Transportation Economics: A Reference for Practitioners (website with Reference & lessons/tutorials)

  Original Reference developed for the Texas Department of Transportation (2012), with Donna Chen & others.

  
  
• Maximum Simulated Likelihood Estimation with Correlated Observations: A Comparison of Simulation Techniques

  Chapter 8 of Transportation Statistics, pp. 173-194 (Brian Sloboda [Ed.], J.D. Ross Publishing, 2008). With Xiaokun (Cara) Wang.

  
  
• Relaxing the Multivariate Normality Assumption in the Simulation of Transportation System Dependencies

  Transportation Letters: The International Journal of Transportation Research 2 (2): 63-74 (2010). With ManWo Ng & S. Travis Waller.

  
  
• The Impacts of Bypasses on Small- and Medium-Sized Communities: An Econometric Analysis

  Journal of Transportation and Statistics 5 (2): 57-69 (2002).  With Siva Srinivasan. (Also, The Impacts of Highway Relief Routes on Small Towns in Texas, TxDOT Final Report Project 1843, with Susan Handy, Scott Kubly, Siva Srinivasan, James Jarrett, Michael Oden & Hani Mahmassani.)

  
  
• Reducing Burden and Sample Sizes in Multi-day Household Travel Surveys

  Published in Transportation Research Record No. 2064: 12-18 (2008). With Peter Stopher, Stephen Greaves, and Eoin Clifford.

  
  
• The Acquisition of Long-Distance Freight Data (Workshop Report from ISCTSC 2008, Annecy, France)

  In Transport Survey Methods: Keeping up with a Changing World (Bonnel, Lee-Gosselin, Zmud & Madre, Eds.) Emerald, Bingley (2009). With Michael Browne and Jacques Leonardi.

  
  
• State-Local Coordination in Managing Land Use and Transportation Along State Highways

  Journal of Urban Planning and Development 131 (1): 10-18 (2005). With Salila Vanka and Susan Handy.

  
  
• Frontage Roads: An Assessment of Legal Issues, Design Decisions, Costs, Operations, and Land-Development Differences

  Journal of Transportation Engineering 129 (3) (2003). With Randy Machemehl, Aaron Overman, Jacob Sesker, Marwan Madi, Jean (Jenny) Peterman, and Susan Handy. Based on Texas DOT Final Report, Project 1843.

  
  
• Research on Relationships Between Transportation Infrastructure & Increases in Vehicle Miles Traveled: The Effects of Highway Capacity Expansion on Land Development

  Final EPA Report.  With Brian tenSiethoff, C. Michael Walton, and Hani Mahmassani. (Also, published as Transportation Research Record No. 1812, in 2002.)

  
  
• Sidewalk Cross-Slope Design: Analysis of Accessibility for Persons with Disabilities

  Winner of the Transportation Research Board 2002 Pedestrian Committee's Best Paper Award.  Published in Transportation Research Record No. 1818: 108-118 (2002).  With Lydia Heard, Young-Jun Kweon, and Tom Rioux.  Based on Final Research Report for TxDOT Project 0-4171 (2002).

  
  
• Meeting the Intent of ADA in Sidewalk Cross-Slope Design

  Journal of Rehabilitation Research and Development 38 (1) (2011). With Yong Zhao & Chessalay Blanchard-Zimmerman.

  
  
• Sidewalk Cross-Slope Requirements of the American with Disabilities Act

  Transportation Research Record No. 1705 (2000). With Yong Zhao, Lydia Heard, Dean Taylor, and Beth Taylor. And based on Methods for Meeting the ADA in Sidewalk Cross-Slope Design Summary Report 4933-S, Center for Transportation Research, prepared for the Texas Department of Transportation (2000). With Yong Zhao & Chessalay Blanchard-Zimmerman.

  
  
• Urban Accessibility Indices: A Literature Review, Accessibility Measures: Formulation Considerations and Current Applications, Assessment of Accessibility Measures, & Development of an Urban Accessibility Index: Formulations, Aggregation, and Application. TxDOT Research Reports No. 4938-1 through -4. With Chandra Bhat, Susan Handy, Hani Mahmassani, Qinglin Chen, Lisa Weston, Issam Srour, & Anand Gopal.
  

   

• Techniques for Mitigating Urban Sprawl: Report 1 &Techniques for Mitigating Urban Sprawl: Report 2. TxDOT Research Reports No. 4420-1 and -2. With Susan Handy, Robert Paterson, Chandra Bhat, Jumin Song, Jayanthi Rajamani, & Juchul Jung.

   

• Traffic Congestion, Chapter 12 in the Handbook of Transportation Engineering

  Published by McGraw-Hill (2004).

  
  
• High-Speed Rail for California: A Cost-Benefit Analysis.

  Berkeley Planning Journal, Volume 9: 61-80 (1994).

  
  
• Nonparametric Estimation of Household VMT

  Unpublished manuscript, with Young-Jun Kweon (2004).

  
  
• Student Grades & Course Evaluations in Engineering: What Makes a Difference

  Presented at the ASEE Annual Conference, Albuquerque, New Mexico, June 2001, and at the ASEE Gulf Section Annual Conference, College Station, Texas, March 2001.

  
  
• Critical Elements of a High-Quality Research Paper

  Slides for Invited Presentation at the 87th Annual Meeting of the Transportation Research Board (2008).

  
  

OTHER LINKS OF INTEREST

U.T. Transportation Engineering: Graduate & Undergraduate Programs, Research, & People

U.T. Austin's Department of Civil, Architectural & Environmental Engineering Home Page

U.T. Austin's Campus Home Page

CTR - The Center for Transportation Research at U.T. Austin

Homepage of the Statistical Methods Committee, Transportation Research Board (ABJ80)

Homepage of the Transportation Economics Committee, Transportation Research Board (ABE20)

Homepage of the Travel Survey Methods Committee, Transportation Research Board (ABJ40)

Transportation Network Analysis book (free!) by S. Boyles, N. Lownes & A. Unnikrishnan (2020)

New Vehicle Technologies Surveys (Fall 2014)

Crash Histories Surveys (Spring 2012)

Electric Vehicle Adoption & Use Survey (Summer 2009)

Energy Use & Climate Policy Opinion Survey (Fall 2008)

Gas Price Response Survey (Winter & Spring 2006/2007)

Carsharing Survey (Fall & Winter 2006/2007)

Apartment Dwellers Survey (Spring 2005)

Recent Movers Survey (Spring 2005)

Public Perceptions of Tolling & Transportation Policies Phone Interview Survey (Early 2004)

Sidewalk Survey for Persons with Physical Disabilities (1999)

News Stories catalogued by CTR

CTR's Recent Technical Reports

U.S. Bureau of Transportation Statistics Website

Economics Data Set Sources

Friday Forum for Future Female Faculty 2002 & 2003, Careers in Engineering for, & National Academy's Engineer Girl website

Squirrels of UT

Bungee-Jumping Kockelman Brothers

               

                                                                               Artwork by Stefan MÅS Persson.

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Go to: U.T. Austin's Department of Civil, Architectural & Environmental Engineering Home Page

PRODUCTS of recent TxDOT-sponsored research activities (from CTR's website):