Publications

Peer-reviewed journal articles, conference proceedings, book chapters, technical reports, and patents. Manuscripts under review are listed first.

Google Scholar ORCID

Under Review

  1. Under revision
    Fake Rush Hour: Exploring Bounded Rational Route Guidance Attacks on Urban Navigation Systems
    Eunhan Ka, Doguhan Yeke, Z. Berkay Celik, and Satish V. Ukkusuri
    ACM Journal on Autonomous Transportation Systems (under revision), 2026
  2. Under review
    Worker-Perceived Regulatory Calibration and Workforce-Impact Indicators in U.S. Transportation Cybersecurity: Exploratory Survey Evidence
    Eunhan Ka, Shagun Mittal, Amjad Ali, Larry Liu, and Satish V. Ukkusuri
    Transport Policy (under review), 2026
  3. Under review
    Day-to-Day Traffic Network Modeling under Route-Guidance Misinformation: Endogenous Trust and Resilience in CAV Environments
    Eunhan Ka and Satish V. Ukkusuri
    IEEE Transactions on Intelligent Transportation Systems (under review), 2026. DOI: 10.48550/arXiv.2605.14204
  4. Under review
    Context-Matched Scenario Families with Controlled Criticality for Autonomous Driving Testing
    Ziyuan Yang, Eunhan Ka, Zhiyu Cai, and Satish V. Ukkusuri
    Transportation Research Record: Journal of the Transportation Research Board (under review), 2026
  5. Under review
    Finite-Grid Used-Path Regret Certificates for Restricted Static Traffic Assignment
    Eunhan Ka, Hongli Li, and Satish V. Ukkusuri
    Transportation Research Record: Journal of the Transportation Research Board (under review), 2026

Journal Articles

  1. Accepted
    Observation-Aligned Two-Stage Domain Decomposition for Physics-Informed Traffic State Estimation with Sparse Fixed Sensors
    Eunhan Ka, Ludovic Leclercq, and Satish V. Ukkusuri
    Transportation Research Part C: Emerging Technologies (Accepted), 2026. DOI: 10.48550/arXiv.2605.08028
  2. Accepted
    Career-Stage-Specific Training Priorities for State DOT Workforce Development: An Integrated Regression and Importance-Performance Analysis
    Eunhan Ka, Shagun Mittal, and Satish V. Ukkusuri
    Transportation Research Record: Journal of the Transportation Research Board (Accepted), 2026
  3. Transportmetrica B
    Resilience of Traffic Networks to Route Guidance Attacks: The Role of Driver Behaviour Heterogeneity
    Eunhan Ka and Satish V. Ukkusuri
    Transportmetrica B: Transport Dynamics, 2026. DOI: 10.1080/21680566.2026.2674257
  4. Future Transp.
    Strengthening the Transportation Cybersecurity Workforce: A Mixed-Methods Analysis of Workforce Development, Organizational Preparedness and Cross-Sector Collaboration
    Amjad Ali, Larry Liu, Blessing Ojeme, Chidozie Anadozie, Fremah Agyemang, Satish V. Ukkusuri, Eunhan Ka, and Shagun Mittal
    Future Transportation, 2026. DOI: 10.3390/futuretransp6040140
  5. TR Part F
    Route Guidance Attacks in Cyber Transportation Networks: A User-Centered Study of Behavioral Sensitivity
    Eunhan Ka and Satish V. Ukkusuri
    Transportation Research Part F: Traffic Psychology and Behaviour, 2025. DOI: 10.1016/j.trf.2025.103354
  6. ACM JATS
    Cybersecurity for Next-Generation Road Transportation: A Review
    Satish V. Ukkusuri, Omar Faruqe Hamim, Zengxiang Lei, Eunhan Ka, M Sabbir Salek, Mashrur Chowdhury, M. Hadi Amini, Alvaro Cardenas, and Bhavani Thuraisingham
    ACM Journal on Autonomous Transportation Systems, 2025. DOI: 10.1145/3744352
    The first four authors contributed equally to this research
  7. TR Part C
    A Physics-Informed Machine Learning for Generalized Bathtub Model in Large-Scale Urban Networks
    Eunhan Ka, Jiawei Xue, Ludovic Leclercq, and Satish V. Ukkusuri
    Transportation Research Part C: Emerging Technologies, 2024. DOI: 10.1016/j.trc.2024.104661
  8. TR Part B
    Network Macroscopic Fundamental Diagram-Informed Graph Learning for Traffic State Imputation
    Jiawei Xue, Eunhan Ka, Yiheng Feng, and Satish V. Ukkusuri
    Transportation Research Part B: Methodological, 2024. DOI: 10.1016/j.trb.2024.102996
  9. JTE Part A
    Leveraging Location-Based Data for Assessing Network-Level Traffic Impact of Lane Management: A Case Study of Alex Fraser Bridge2022 Editor’s Choice Collection
    Eunhan Ka, Smita Sharma, and Satish V. Ukkusuri
    Journal of Transportation Engineering, Part A: Systems, 2022. DOI: 10.1061/JTEPBS.0000760
  10. J. Adv. Transp.
    Implementing Surrogate Safety Measures in Driving Simulator and Evaluating the Safety Effects of Simulator-Based Training on Risky Driving Behaviors
    Eunhan Ka, Do-Gyeong Kim, Jooneui Hong, and Chungwon Lee
    Journal of Advanced Transportation, 2020. DOI: 10.1155/2020/7525721
  11. J. Adv. Transp.
    Evaluation of the Rain Effects on Gap Acceptance Behavior at Roundabouts by a Logit Model
    Dongmin Lee, Sooncheon Hwang, Eunhan Ka, and Chungwon Lee
    Journal of Advanced Transportation, 2018. DOI: 10.1155/2018/2726732

Conference Proceedings

  1. VehicleSec
    MIRAGE: Detecting Fake Emergency Electronic Brake Light Attacks in V2X Networks via Event-Gated Behavioral Analysis
    Eunhan Ka, Doguhan Yeke, Z. Berkay Celik, and Satish V. Ukkusuri
    In 4th USENIX Symposium on Vehicle Security and Privacy (VehicleSec ’26), Baltimore, MD, 2026
  2. DDDAS
    Beyond Attacker-Defender Ratios in Counter-Swarm Defense
    Diego Ortiz Barbosa, Eya Badal Abdisho, Oliver Chang, Luis Burbano, Zengxiang Lei, Eunhan Ka, Satish V. Ukkusuri, Leilani H. Gilpin, and Alvaro A. Cardenas
    In Dynamic Data Driven Applications Systems (DDDAS) 6th International Conference, New Brunswick, NJ, 2026
  3. TRB
    Analytical Framework for Network-Level Traffic Flow under Route Guidance Attacks: An Extension of the Generalized Bathtub Model
    Eunhan Ka and Satish V. Ukkusuri
    In 104th Annual Meeting of the Transportation Research Board, Washington, D.C., 2025
  4. TRB
    Comparative Analysis of Sampling Methods in Physics-Informed Neural Networks for Traffic State Estimation in Large-Scale Road Networks
    Eunhan Ka and Satish V. Ukkusuri
    In 104th Annual Meeting of the Transportation Research Board, Washington, D.C., 2025
  5. FoT Summit
    Impact of Cyber Attacks on Traffic State Estimation for Connected and Autonomous Vehicles Systems
    Eunhan Ka and Satish V. Ukkusuri
    In Inaugural USDOT Future of Transportation (FoT) Summit, Washington, D.C., 2024
  6. ISTTT
    Network Macroscopic Fundamental Diagram-Informed Graph Learning for Traffic State Imputation
    Jiawei Xue, Eunhan Ka, and Satish V. Ukkusuri
    In 25th International Symposium on Transportation and Traffic Theory (ISTTT25), Ann Arbor, MI, 2024
  7. TRB
    PIDL-PedFlow: A Physics-Informed Deep Learning Approach for Macroscopic Continuum Pedestrian Flow Modelling
    Eunhan Ka, Jiawei Xue, and Satish V. Ukkusuri
    In Transportation Research Board 103rd Annual Meeting, Washington, D.C., 2024
  8. TRB
    Generating Network-Level Dynamic Traffic Equations Using Symbolic Regression
    Jiawei Xue, Eunhan Ka, Washim Uddin Mondal, and Satish V. Ukkusuri
    In Transportation Research Board 103rd Annual Meeting, Washington, D.C., 2024
  9. TRB
    Leveraging Location-Based Data for Assessing Network Level Traffic Impact of Lane Management: A Case Study of Alex Fraser Bridge
    Smita Sharma and Eunhan Ka
    In Transportation Research Board 103rd Annual Meeting, Washington, D.C., 2024
  10. INFORMS
    Dynamic Routing Games for Connected and Autonomous Vehicles with Traffic Congestion: A Mean Field Game Approach
    Eunhan Ka and Satish V. Ukkusuri
    In 2023 INFORMS Annual Meeting, Phoenix, AZ, 2023
  11. TRB
    A Cluster-Based Route Design of Multi-Capacity Vehicle in Large-Scale Demand Responsive Transport Service for the Disabled
    Eunhan Ka, Dongju Ka, Yeonwoo Jung, and Chungwon Lee
    In Transportation Research Board 99th Annual Meeting, Washington, D.C., 2020
  12. ICRE
    Analysis of Status in DRT Service for the Disabled in Seoul and Comparison Domestic and Foreign Cases
    Eunhan Ka, Doosun Hong, Yejin Na, and Chungwon Lee
    In International Conference for Road Engineers, Jeju, South Korea, 2018
  13. KST
    Selection of Appropriate Hyperparameter for Waiting Time Prediction Model for DRT for the Disabled in Seoul Using LSTM NetworkOutstanding Paper Award
    Doosun Hong, Eunhan Ka, Seonghyun Ha, and Chungwon Lee
    In 78th Korean Society of Transportation Conference, Wonju, South Korea, 2018
  14. EASTS
    A Preliminary Study of Comparison with Lane Changing Model Parameters in Merging Area between Normal and Raining Conditions
    Eunhan Ka, Sunho Kim, Jooneui Hong, and Chungwon Lee
    In 12th International Conference of Eastern Asia Society for Transportation Studies (EASTS), Ho Chi Minh, Vietnam, 2017
  15. KITS
    An Estimation of Critical Gap for Gap Acceptance Model Applied to Lane Change of Surrounding Vehicles in Driving Simulator
    Eunhan Ka, Sunho Kim, Dongjun Woo, and Chungwon Lee
    In 2016 Fall Conference of the Korea Institute of Intelligent Transport Systems, Jeju, South Korea, 2016
  16. KST
    Analysis of Traffic Flow Impacts of Highway Traffic Accidents Using Survival AnalysisOutstanding Paper Award
    Sanghyup Lee, Hyunkyung Lee, Jaeyoung Lee, Eunhan Ka, and Chungwon Lee
    In 74th Korean Society of Transportation Conference, Jeju, South Korea, 2016

Books and Technical Reports

  1. Book chapter
    Misdirected Guidance and Urban Traffic Network Resilience
    Eunhan Ka and Satish V. Ukkusuri
    In Advances in Transportation Cybersecurity and Resiliency, 2026
    In press
  2. Book chapter
    Understanding Cyber Threats in Cyber-Physical Mobility Systems
    Omar Faruqe Hamim, Zengxiang Lei, Eunhan Ka, and Satish V. Ukkusuri
    In Advances in Transportation Cybersecurity and Resiliency, 2026
    In press
  3. Tech. report
    Forecasting Shifts in Hoosiers’ Travel Demand and Behavior
    Rajat Verma, Hao Luo, Saloni Deodhar, Eunhan Ka, Ricardo Chahine, Pallavi Natu, Harshit Malhotra, Vineeth Polisetty, Dutt J Thakkar, Satish V. Ukkusuri, Hua Cai, Steven R Dunlop, Ananth V Iyer, and Konstantina Gkritza
    Technical Report FHWA/IN/JTRP-2023/28, Joint Transportation Research Program, Purdue University , 2023
    SPR-4608

Patents

  1. Patent
    System and Method for Trusted Route Guidance with Anomaly Detection
    Satish V. Ukkusuri and Eunhan Ka
    2026
    U.S. Provisional Patent Application No. 63/989,950, filed February 24, 2026. Purdue Research Foundation. Patent pending