OST-R's Key Officials

Office of the Assistant Secretary
Assistant Secretary, Vacant
Principal Deputy Assistant Secretary and Chief Science Officer, Robert C. Hampshire, PhD
Deputy Assistant Secretary, Ben Levine

Bureau of Transportation Statistics
Director, Patricia S. Hu
Deputy Director, Rolf Schmitt, PhD
Public Affairs Contact, Ethan Alpern

Highly Automated Systems Safety Center of Excellence
Director, Taylor Lochrane, PE, PhD

Intelligent Transportation Systems Joint Program Office
Director, Brian Cronin

National Coordination Office, Space-Based Positioning, Navigation and Timing
Director, Harold W. "Stormy" Martin III

Positioning, Navigation and Timing & Spectrum Management
Director, Karen Van Dyke

Office of Research, Development and Technology
Director, Dr. Firas Ibrahim

Office of Technology Policy and Outreach
Director, Timothy Klein

Transportation Safety Institute (Oklahoma City, OK)
Director, Dr. Troy Jackson 
Senior Liaison, Christine Lawrence

U.S. DOT John A. Volpe National Transportation Systems Center (Cambridge, MA)
Director, Gregg G. Fleming
Director for Research and Innovative Technology, Stephen M. Popkin, PhD 
Director for Operations, Dabney Kern
Director of Center for Policy, Planning, and Environment, Gregg G. Fleming (Acting)
Director of Center for Safety Management and Human Factors, Kelly Curran (Acting)
Director of Center for Infrastructure Systems and Technology, Luisa Paiewonsky
Director of Center for Communications, Navigation, Surveillance Systems, and Engineering, Jonathan Walker, PE, PhD 

Public Affairs Contacts: 
nancy.wilochka@dot.gov 202-366-5128 

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