Background
My research interests are in traffic operations, intelligent transportation systems, and vehicle communication and automation.
- PhD Civil Engineering, University of Virginia
- Licensed Professional Engineer, Virginia
I will help any graduate student, within reason, for free, with no questions asked.
Curriculum vitae | Google Scholar | ORCID | Web of Science
Publications
A Note on Tesla's Revised Safety Report Crash Rates. Under Review. 2023.
[Preprint]
Comparability of Automated Vehicle Crash Databases. Under Review. 2023.
[Preprint]
Data and Methods to Estimate Connected and Automated Vehicle Penetration Rates. Report for the Virginia Transportation Research Council: FHWA/VTRC 24-R7. 2024.
[PDF] [Link]
Normalizing Crash Risk of Partially Automated Vehicles under Sparse Data. Journal of Transportation Safety & Security. 2023.
[Preprint] [Published Version] [Data]
Evaluation of Crowdsourced Data on Unplowed Roads. Proceedings of the 102nd Annual Meeting of the Transportation Research Board. 2023.
[Preprint]
Feasibility of Battery Electric Pickup Trucks in a State Department of Transportation Fleet. With Erin Robartes. Transportation Research Record. 2023.
[Preprint] [Published Version]
Cost of Congestion Due to Incidents on Freeways – A Virginia Case Study. With Chien-Lun Lan, Mo Zhao, and James Gillespie. Under Review. 2022.
Evaluation of a Transit Bus Collision Avoidance Warning System. Report for the Virginia Transportation Research Council: FHWA/VTRC 22-R18. With Peter Ohlms. 2022.
[PDF] [Link]
Cost of Congestion Due to Incidents on Freeways. Report for the Virginia Transportation Research Council: FHWA/VTRC 22-R15. With Chien-Lun Lan, Mo Zhao, and James Gillespie. 2021.
[PDF] [Link]
Potential Crash Rate Benchmarks for Automated Vehicles. Transportation Research Record. 2021.
[Preprint] [Published Version] [Poster]
Comparison of Automated Vehicle Struck-from-Behind Crash Rates with National Rates Using Naturalistic Data. Accident Analysis & Prevention. 2021.
[Preprint] [Published Version] [Poster] [Data]
Assessing the Impact of Automated and Connected Automated Vehicles on Virginia Freeways. Transportation Research Record. With Kevin Heaslip, Bumsik Kim, Mirla Abi Aad, and Antonio Fuentes. 2021.
[Published Version]
Non-Technological Challenges for the Remote Operation of Automated Vehicles. Transportation Research Part A: Policy and Practice. 2020.
[Preprint] [Published Version] [Poster] [Data]
Assessment of Capacity Changes Due to Automated Vehicles on Interstate Corridors. Report for the Virginia Transportation Research Council: FHWA/VTRC 21-R1. With Kevin Heaslip, Bumsik Kim, and Mirla Abi Aad. 2020.
[PDF] [Link]
Car-following Characteristics of Adaptive Cruise Control from Empirical Data. Journal of Transportation Engineering, Part A: Systems. With Chien-Lun Lan. 2020.
[Preprint] [Published Version] [Poster] [Data]
Bounds on Permissible Automated Vehicle Behavior on Virginia Freeways. 27th World Congress on Intelligent Transport Systems. Los Angeles, CA. 2020 (Cancelled due to COVID-19).
[Preprint]
Estimating Incident Impacts in Real Time. 27th World Congress on Intelligent Transport Systems. Los Angeles, CA. 2020 (Cancelled due to COVID-19).
[Preprint]
More than Trolleys: Plausible, Ethically Ambiguous Scenarios likely to Be Encountered by Automated Vehicles. Transfers: Interdisciplinary Journal of Mobility Studies. 2019.
[Preprint] [Published Version]
Comparison of Waze Crash and Disabled Vehicle Records with Video Ground Truth. Transportation Research Interdisciplinary Perspectives. With Eun (Tina) Lee. 2019.
[Published Version (Open Access)]
How to Think About Driverless Vehicles: Review of Driverless by Hod Lipson and Melba Kurman. American Journal of Public Health. 2018.
[Preprint] [Published Version]
Video of Uber Self-Driving Car’s Fatal Crash Raises More Questions. IEEE Spectrum | Cars That Think Blog. 2018.
[Link]
Effect of Signal Control on Bimodal Travel Time Distributions. Proceedings of the 97th Annual Meeting of the Transportation Research Board. 2018.
[Preprint] [Link] [Poster] [Data]
From Trolleys to Risk: Models for Ethical Autonomous Driving. Editorial in American Journal of Public Health. 2017.
[Preprint] [Published Version]
Probability of Secondary Crash Occurrence on Freeways with the Use of Private-Sector Speed Data. Transportation Research Record: Journal of the Transportation Research Board. 2017.
[Preprint] [Published Version] [Poster]
Fundamental Characteristics of Wi-Fi and Wireless Local Area Network Re-identification for Transportation. IET Intelligent Transport Systems. 2017.
[Preprint] [Published Version] [Poster] [Data]
Away From Trolley Problems and Toward Risk Management. Applied Artificial Intelligence. 2016.
[Preprint] [Published Version] [Slides]
Can You Program Ethics Into a Self-Driving Car? IEEE Spectrum. 2016.
[Link]
Traffic Incident Management Quick Clearance Guidance and Implications. Report for the Virginia Transportation Research Council: FHWA/VCTIR 16-R9. With Lance Dougald and Ramkumar Venkatanarayana. 2016.
[PDF] [Link]
Microscopic Estimation of Freeway Vehicle Positions from the Behavior of Connected Vehicles. Journal of Intelligent Transportation Systems: Technology, Planning, and Operations. With Brian L. Smith and Byungkyu “Brian” Park. 2016.
[Preprint] [Published Version]
Ethical Decision Making during Automated Vehicle Crashes. Transportation Research Record: Journal of the Transportation Research Board. 2014.
[Preprint] [Published Version] [Poster]
Vehicle Automation and the Duty to Act. Proceedings of the 21st World Congress on Intelligent Transport Systems. Detroit, MI. 2014.
[Published Version] [Slides]
Machine Ethics and Automated Vehicles. In Meyer, G. and Beiker, S. (eds.) Road Vehicle Automation, Lecture Notes in Mobility Series. Springer, Berlin. 2014.
[Preprint] [Published Version]
Microscopic Estimation of Arterial Vehicle Positions in a Low-Penetration-Rate Connected Vehicle Environment. Journal of Transportation Engineering. With Byungkyu “Brian” Park and Brian L. Smith. 2014.
[Preprint] [Published Version] [Poster]
Traffic Signal Control with Connected Vehicles. Transportation Research Record: Journal of the Transportation Research Board. With Brian L. Smith and Byungkyu “Brian” Park. 2013.
[Preprint] [Published Version] [Poster] [Dissertation]
Real-Time Prediction of Vehicle Locations in a Connected Vehicle Environment. Report for Virginia Center for Transportation Innovation and Research: VCTIR 14-R4. 2013.
[PDF] [Summary]
Microscopic Estimation of Freeway Vehicle Positions Using Mobile Sensors. Proceedings of the 91st Annual Meeting of the Transportation Research Board. With Brian L. Smith and Byungkyu “Brian” Park. 2012.
[Published Version] [Record Link] [Poster] [Slides]
Arterial Performance Measures in a Connected Vehicle Environment. Proceedings of the 18th World Congress on Intelligent Transport Systems. Orlando, Florida. With Brian L. Smith and Ramkumar Venkatanarayana. 2011.
[PDF] [Slides]
What Drives Decisions of Single-Occupant Travelers in High-Occupancy Vehicle Lanes? Transportation Research Record: Journal of the Transportation Research Board. With Brian L. Smith. 2010.
[Preprint] [Published Version] [Master’s Thesis]
An Investigation Into the Impact of Rainfall on Freeway Traffic Flow. Proceedings of the 83rd Annual Meeting of the Transportation Research Board. With Brian L. Smith, Kristi Byrne, Rachel Copperman, and Susan Hennessy. 2004.
[Preprint]
Media
Interviewed in New York Times, CNN, Wired, Scientific American, Associated Press, BBC, CBC, Time, Reason, and others.