Associate Director for Safety, Operations, and Traffic Engineering
Research Interests:
Traffic operations
Traffic engineering
Highway safety analysis
Intelligent transportation systems
Traffic monitoring systems
Work zone traffic control and safety
Education:
Ph.D., Civil Engineering, University of Virginia
M.S., Civil Engineering, University of Virginia
B.S., Civil Engineering, University of Virginia
Registration:
Registered Professional Engineer, Commonwealth of Virginia
Memberships:
TRB Urban Transportation Data and Information Systems Committee (AED20), member(2007 – present), Chair (2020-present)
TRB Highway Traffic Monitoring Committee (ACP70), member (2013 - present)
Texas A&M Transportation Institute Mobility Measures in Urban Transportation Study Committee, Panel Member (2005-Present)
NCHRP project 17-72, Update of Crash Modification Factors for the Highway Safety Manual, member (2019- present)
Awards:
Best Technical Paper Award for “Development of a Performance Evaluation Application for the I-95 Variable Speed Limit System in VA ", (with Cho and Robartes), Southern District Institute of Transportation Engineer Annual Meeting 2023
Virginia Center for Transportation Innovation and Research Tilton E. Shelburne Award for National Leadership, 2010
Jack H. Dillard Award for paper "Evaluation of the Impact of I-66 Active Traffic Management System" (with Chun), VTRC, 2016
Wallace T. McKeel Award for Embodiment of the Spirit of Leadership through Dedication to the VTRC's Mission and People
VDOT Commissioner’s Award for Outstanding Achievement in Innovation (2017)
Transportation Research Board Committee AHB50 (Traffic Control Devices) Best Paper Award for the paper “Safety Effects of Flashing Yellow Arrows Used in Protected Permitted Phasing: Comparison of Full Bayes and Empirical Bayes Results” (With Appiah, King, and Cottrell), 2018
