Dewitt Greer Centennial Professor of Transportation Engineering
Department of Civil, Architectural and Environmental Engineering
The University of Texas at Austin
Education
PhD., 1998, The University of California at Berkeley, Civil Engineering
M.S., 1996, The University of California at Berkeley, Civil Engineering
M.C.P., 1996, The University of California at Berkeley, City and Regional Planning
B.S., 1991, The University of California at Berkeley, Civil Engineering
Contact Information
1 University Station (Mail Code C1761),Austin, TX 78712-1076
+1-512-471-0210
kkockelm@mail.utexas.edu
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)
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
CE392H & 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/ .- Shared Autonomous Vehicle (SAV) Operations Across Different Dallas-Fort Worth (DFW) Geofences
Presented at the Bridging Transportation Researchers conference (August 2022) and at the 102nd Annual Meeting of the Transportation Research Board (January 2023). Under review for publication in Transportation Research Record. With Phillip Ayebare, Krishna Murthy Gurumurthy, and Yantao Huang.
- Self-Driving Vehicles' Impacts on Americans' Long-Distance Domestic Travel Choices
Presented at the 61st Annual Meeting of the Southern Regional Science Association (April 2022), the Bridging Transportation Researchers conference (August 2022), and the 69th North American Meetings of the Regional Science Association International (November 2022). Under review for publication in Transportation Planning and Technology. With Fatemeh Fakhrmoosavi, Priyanka Paithankar, Yantao Huang, and Jason Hawkins.
- Multi-Stage Charging and Discharging of Electric Vehicle Fleets
Presented at the 102nd Annual Meeting of the Transportation Research Board (January 2023). Under review for publication in Transportation Research Part D. With Matt Dean, Felipe deSouza, and Krishna Murthy Gurumurthy.
- Sensitivity of Charging and Maintenance Trips of Shared Fully-Automated Electric Vehicle Fleets in a Large-Scale Model
Presented at the 61st Annual Meeting of the Southern Regional Science Association (April 2022). Under review for publication in Sustainable Cities and Society. With Krishna Murthy Gurumurthy and Matthew Dean.
- On- and Off-Street Parking Strategies and Outcomes for Shared Autonomous Vehicle Fleet Operations
Presented at the 102nd Annual Meeting of the Transportation Research Baord (January 2022) and at the Bridging Transportation Researchers conference (August 2022). Under review for publication in Journal of Urban Planning and Development. With Fatemeh Fakhrmoosavi, Christian Hunter, Krishna Murthy Gurumurthy, and Matt Dean.
- Shared Autonomous Vehicles for Efficient Evacuation of Vulnerable Populations
Under review for publication in Transportation Research Part C. With Jooyong Lee.
- Strategic Evacuation for Regional Events: With and Without Autonomous Vehicles
Transportation Research Record Record 2675(9): 1398-1409 (2021). With Jooyong Lee.
- Access Benefits of Shared Autonomous Vehicle Fleets: Focus on Vulnerable Populations
Presented at the 101st Annual Meeting of the Transportation Research Board (January 2022). Transportation Research Record (June 2022, https://doi.org/10.1177%2F03611981221094305). With Jooyong Lee.
- Shared Autonomous Vehicle Fleets to Serve Chicago's Public Transit
Presented at the 61st Annual Meeting of the Southern Regional Science Association (April 2022). With Yantao Huang, Krishna Murthy Gurumurthy, and Omer Verbas.
- Long Distance Travel Impacts of Automated Vehicles: A Survey of American Households
Presented at the 102nd Annual Meeting of the Transportation Research Board (January 2023) and under review for publication in Transportation Research Part A. With Yantao Huang and Natalia Zuniga-Garcia.
- Long-Distance Travel Impacts of COVID-19 Across the United States.
Findings (2022 https://doi.org/10.32866/001c.36454). With Yantao Huang and Natalia Zuniga-Garcia.
- Shared Autonomous Vehicle Modelling Considering System Optimization and Simulation
Presented at the Bridging Transportation Researchers conference (August 2022) and under review for publication in Transportation Engineering Part A. With Kai Huang and Yantao Huang.
- Synergies Between Repositioning and Charging Strategies for Shared Autonomous Electric Vehicle Fleets
Presented at the 101st Annual Meeting of the Transportation Research Board (January 2022). Transportation Research Part D 108: 103314 (2022). With Matt Dean, Krishna Murthy Gurumurthy, Felipe de Souza, and Joshua Auld.
- Anticipating Current & Coming Technologies that Impact US Travel Choices
Presented at the 101st Annual Meeting of the Transportation Research Board (January 2022) and under review for publication in Transportation Research Record. With Jason Hawkins and Kai Huang.
- Curb Allocation and Pick-Up Drop-Off Aggregation for a Shared Autonomous Vehicle Network
Presented at the 101st Annual Meeting of the Transportation Research Board (January 2022). Forthcoming in International Regional Science Review. With Christian Hunter and Shadi Djavadian.
- Innovations Impacting the Future of Transportation: An Overview of Connected, Automated, Shared, and Electric Technologies
Presented at the Bridging Transportation Researchers conference (August 2021). Transportation Letters (May 2022, https://doi.org/10.1080/19427867.2022.2070091). With Kai Huang and Krishna Murthy Gurumurthy.
- Can SAVs Beat Buses? Travel Time Impacts of Using Shared Automated Vehicles Along a Fixed-Route Transit Corridor
Transport Findings (November 2019, https://doi.org/10.32866/001c.29147). With Yantao Huang.
- Spatial Variation in Shared Ride-Hail Trips & Factors Contributing To Sharing
Presented at the Bridging Transportation Researchers conference (August 2022). Journal of Transport Geography 91, 102944 (2021). With Matt Dean.
- Shared Automated Vehicle Fleet Operations for First-Mile Last-Mile Transit Connections with Dynamic Pooling.
Computers, Environment, and Urban Systems (92) 101730 (2022). With Yantao Huang and Venu Garikapati.
- Strategic Charging of Shared Fully-Automated Electric Vehicle (SAEV) Fleets
Presented at the 100th Annual Meeting of the Transportation Research Board (January 2021). With Matt Dean and Krishna Murthy Gurumurthy.
- Shared Autonomous Vehicle Fleet Performance: Impacts of Parking Limitations and Trip Densities
Transportation Research Part D 89: 102577, 2020. With Haonan Yan and Krishna Murthy Gurumurthy.
- Vehicles That Drive Themselves: What to Expect with Autonomous Vehicles
Vickerman, Roger (eds.) International Encyclopedia of Transportation 5: 19-25. United Kingdom: Elsevier Ltd. With Michele Simoni.
- SAV Operations on A Bus Line Corridor: Travel Demand, Service Frequency and Vehicle Size
Journal of Advanced Transportation 2021: 5577500, 2021. With Yantao Huang & Long Truong.
- Dynamic Ride-Sharing Impacts of Greater Trip Demand and Aggregation at Stops in Shared Autonomous Vehicle Systems
Transportation Research Part A 160: 114-125 (2022). Presented at the 101st Annual Meeting of the Transportation Research Board (January 2022). 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
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
Transportation Research Record 2675(2): 135-149 (2021). 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
Presented at the 100th Annual Meeting of the Transportation Research Board (January 2021). Journal of Transport and Land Use 14(1), 933–948 (2021). 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) & Research in Transportation Economics, 101128 (2021). 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
Transportation Research Part D 89: 102577 (2020). With Haonan Yan and K. Murthy Gurumurthy.
- Benefits & Costs of Ride-sharing in Shared Automated Vehicles across Austin, Texas: Opportunities for Congestion Pricing
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?
J of Transport Geography 78: 115-134 (2019). With Adam Nodjomian.
- Energy & Emissions Implications of Self-Driving Vehicles With and Without Electrification
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
Research in Transportation Economics 101003 (2020). With Yantao Huang & Neil Quarles.
- Modeling Americans' Autonomous Vehicle Preferences: A Focus on Dynamic Ride-Sharing, Privacy, & Long-Distance Mode Choices
Technological Forecasting and Social Change 150 (2019 DOI & 2020 bound version). With K. Murthy Gurumurthy.
- America's Fleet Evolution in an Automated Future
Research in Transportation Economics 101107 (2021). 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
Chapter 11 in Electrifying Mobility: Realising a Sustainable Future for the Car: Transport and Sustainability Vol 15: 211–230. Emerald Publishing (2022). Presented at the 99th Annual Meeting of the Transportation Research Board (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
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
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). 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). Smart 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
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
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). Smart Transport for Cities & Nations: The Rise of Self-Driving & Connected Vehicles (2018, eds. Kara Kockelman & Stephen Boyles). With Marc Segal.
- Our Self-Driving Future Will Be Shaped by Policies of Today
Nature Electronics 5: 2-4, January 2022. With Matt Dean.
- 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.
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SxSW SLIDESHOW: Assimilating Self-Driving Cars into Society, by Kara Kockelman & Lisa Loftus-Otway (March 12, 2017)
RESEARCH: Energy & Greenhouse Gas Emissions
- Reaching Zero Carbon Transportation in the United States: Pathways and Moving Beyond Traditional Framings
With Jason Hawkins.
- Quantifying the Emissions Impact of Repurposed EV Battery Packs in Residential Settings
Journal of Energy Storage 101128, 2021. Presented at the Bridging Transportation Researchers conference (August 2021). With Alizer Khowaja and Matt Dean.
- Are Electric Vehicle Targets Enough? The Decarbonization Benefits of Managed Charging and Second-Life Battery Uses
Transportation Research Record 2676(8): 24-43 (2022). Presented at the 101st Annual Meeting of the Transportation Research Board (January 2022). With Matt Dean.
- Measures to Reduce Greenhouse Gas Emissions from Transportation and Land Use Across the Met Council Region
A report to Met Council on strategies to decarbonize the transportation sector. With Jason Hawkins and Matt Dean.
- Estimating the Deep Decarbonization Benefits of the Electric Mobility Transition: A Review of Managed Charging Strategies and Second-Life Battery Uses
Presented at the ASCE International Conference on Transportation Development (ICTD 2021), June 8-10, 2021 (virtual) and published in conference proceedings. With Matt Dean.
- 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
J of Renewable and Sustainable Energy Review 139, 110657 (2021). With Tyler Wellik, Joseph Griffin, and Moataz Mohamed.
- Life-Cycle Analysis of Electric Vertical Take-Off and Landing Vehicles
Presented at the Bridging Transportation Researchers conference (January 2020). Presented at the 100th Annual Meeting of the Transportation Research Board (January 2021). Under review for publication in Transportation Planning and Technology. With Khashayar Khavarian.
- Reducing Greenhouse Gas Emissions from Long-Distance Travel Business: How Far Can We Go?
Transportation Research Record 2676(1): 472-486 (2022). 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
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
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
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 2675(1):10-24 (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
Research in Transportation Economics 90, 100863 (2021). 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). 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
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
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
- Agent-Based Simulations of Shared Automated Vehicle Operations: Reflecting Travel-Party Size and Day-of-Year Demand Variations
Presented at the 102nd Annual Meeting of the Transportation Research Board (January 2023). With Yantao Huang and Krishna Murthy Gurumurthy.
- International Travel to and from the United States: Destination Choices and Airline Fares
Presented at the 69th North American Meetings of the Regional Science Association International (November 2022) and under review in Transportation Planning and Technology. With Priyanka Paithankar, Fatemeh Fakhrmoosavi, and Kenneth Perrine.
- Evacuation Efficiency under Different Departure Time & Destination Choice Preferences
Presented at the 101st Annual Meeting of the Transportation Research Board (January 2022). With Jooyong Lee.
- Integrating Shared Mobility Services with Public Transit in Areas with Low Demand
Presented at the 101st Annual Meeting of the Transportation Research Board (January 2022). Journal of Public Transportation 24, 2022. With Natalia Zuniga-Garica, Krishna Murthy Gurumurthy, Cesar N. Yahia, and Randy Machemehl.
- 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
Presented at the World Symposium on Transport and Land Use Research, Aug 9-13, 2021. With Louis Alcorn.
- Preparing Data for Microsimulation of Smart Transport Systems: A Tool for Exploiting Existing
Travel Model Results & Open-Source Data
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.
- Improving Our Understanding of How Highway Congestion and Pricing Affect Travel Demand, SHRP Report S2-C04-RW-1
Final report for the National Academy of Engineering Transportation Research Board's Strategic Highway Program (2016).
- 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
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
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 Crash Occurrence at Intersections in Texas: an Opportunity for Machine Learning
Presented at the Bridging Transportation Researchers conference (August 2022) and at the 102nd Annual Meeting of the Transportation Research Board (January 2023). Under review for publication in Transportation Planning and Technology. With Theodore Charm, Haoqi Wang, Natalia Zuniga-Garcia, and Mostaq Ahmed.
- Prioritizing Investments to Reduce Vehicle-Pedestrian Crashes in Texas
Presented at the 102nd Annual Meeting of the Transportation Research Board (January 2023). With Jooyong Lee.
- Predicting Pedestrian Crashes in Texas’ Intersections and Midblock Segments
Sustainability 14(12): 7164 (2022). With Natalia Zuniga-Garcia and Ken Perrine.
- Predicting Pedestrian Crash Occurrence and Injury Severity in Texas Using Tree-Based Machine Learning Models
Presented at the 102nd Annual Meeting of the Transportation Research Board (January 2023) and under review for publication in Transportation Planning and Technology. With Natalia Zuniga-Garcia, Bo Zhao, and Lu Xing.
- Investigating Risk Factors Associated with Pedestrian Crash Occurrence and Injury Severity in Texas
Presented at the 100th Annual Meeting of the Transportation Research Board (January 2021).Traffic Injury Prevention 23(5): 283-289 (May 2022). With Mashrur Rahman and Ken Perrine.
- An Analysis of Pedestrian Crash Trends and Contributing Factors In Texas
Journal of Transport and Health 22: 101090 (2021). With Max Bernhardt.
- Modelling Animal-Vehicle Collision Counts Across Large Networks Using A Bayesian Hierarchical Model with Time-Varying Parameters
Presented at the 99th Annual Meeting of the Transportation Research Board, in Washington D.C. (2020). Analytic Methods in Accident Research 100231. With Krishna Murthy Gurumurthy, Prateek Bansal, and Zili Li (2022).
- 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). 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
- 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
- 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). 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
Accident Analysis and Prevention 35 (4): 313-321 (2003). With Young-Jun Kweon.
- Driver Injury Severity: An Application of Ordered Probit Model
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.
National Cooperative Highway Research Program (NCHRP) Report 17-23 (2006). With Jon Bottom, Young-Jun Kweon, Jianming Ma, and Xiaokun (Cara) Wang.
Presented at the 83rd Annual Meeting of the Transportation Research Board (2004). Journal of the Transportation Research Forum 46 (1): 43-62 (2007). With Jianming Ma.
RESEARCH: Land Use-Transportation-Trade Models & Analysis of Spatial Data
- How Does Upzoning Impact Land Use and Transport: A Case Study of Seattle
Presented at the Bridging Transportation Researchers conference (August 2022), the 102nd Annual Meeting of the Transportation Research Board (January 2023) and at the 69th North American Meetings of the Regional Science Association International (November 2022). With Naifu Fan.
- Impact of Flextime on Departure Time Choice for Home-Based Commuting Trips in Austin, Texas
Transportation Research Record 2676(1): 446-459 (2022). With Mashrur Rahman and Krishna Murthy Gurumurthy.
- Anticipating Land Use Impacts of Self-Driving Vehicles in the Austin, Texas Region
J of Transportation and Land Use 13(1), 185-205 (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
Growth and Change (2021 https://doi.org/10.1111/grow.12587). 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
Chapter 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
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
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). 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
Transportation Research Record No. 2269: 99-109 (2012). 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
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
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
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
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). 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). Journal of Transport Geography 29: 24-32 (2013). With Brent Selby.
- Forecasting Network Data: Spatial Interpolation of Traffic Counts Using Texas Data
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
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
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
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
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
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
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
- Inferring Vehicle Speeds, Makes, and Models from Video Camera Footage: Ready Opportunities for Transport Data Analysis
With Mohammadreza Mirzaei, Mohaddese Salehian Khaled Abady, and Alizer Khowaja.
- How Does Machine Learning Compare to Conventional Econometrics for Transport Data Sets? A Test of ML Vs MLE
Growth and Change (2021 https://doi.org/10.1111/grow.12587). 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
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. 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
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):
Bringing Smart Transport to Texans: Ensuring Benefits of a Connected & Autonomous Transport System
1/16/2015 - 8/31/2018
Implications of Automated Vehicles on Safety, Design and Operation of Texas Highway System
1/15/2015 - 8/31/2016
An Assessment of Autonomous Vehicles: Traffic Impacts & Infrastructure Needs
1/15/2015 - 12/31/2016
TxDOT Implementation 5-6235-01
Implementation of Project Evaluation Toolkit for Abstracted Networks
6/13/2011 - 8/31/2012
Economic Considerations in Transportation System Development & Operations
9/1/2010 - 8/31/2012
Development of a Performance Measurement Based Methodology to Objectively Compare Operational Improvements with Capacity Additions
9/1/2009 - 8/31/2011
TxDOT Implementation 5-5667-01
Implementation of Accesible Land Use Modeling Tools for Texas Regions
1/25/2008 - 8/31/2010
Incorporating Wildlife Crossings into TxDOT's Project Development, Design & Operations Processes
7/31/2017 - 2/28/2019
Identify Risk Factors that Lead to Increase in Fatal Pedestrian Crashes and Develop Countermeasures to Reverse Trend
12/17/2019 - 12/31/2021