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• 2004    Ph.D., Civil and Environmental Engineering, University of California, Irvine  
• 1998    M.S., Transportation Engineering, Seoul National University, Seoul, South Korea 
• 1996    B.S., Urban Planning, Hongik University, Seoul, South Korea 

Sustainable infrastructure design, traffic safety, traffic operation and control, sensor and detector technology, Intelligent Transportation Systems (ITS), and traffic simulation modeling.