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OST-R's Key Officials

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

Bureau of Transportation Statistics
Director, Patricia S. Hu
Deputy Director, Dr. Rolf Schmitt
Public Affairs Contact, Vacant

Highly Automated Systems Safety Center of Excellence
Director, Robert Heilman

Intelligent Transportation Systems Joint Program Office
Director, Kenneth Leonard

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

Office of 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
Director, Dr. Troy Jackson 
Senior Liaison, Christine Lawrence

John A. Volpe National Transportation Systems Center
Director, Anne D. Aylward
Deputy Director for Research & Technology, Dr. Steven M. Popkin
Deputy Director for Operations, Susan M. "Sue" Connors
Director, Center for Safety Management & Human Factors, Maura Lohrenz
Director, Center for Policy, Planning & Environment, Gregg Fleming
Director, Center for Infrastructure Systems & Technology, Luisa Paiewonsky
Director, Center for Air Traffic Systems & Operations, Gregory G. Joyner

Public Affairs Contacts: 202-366-5128 

Learn more about our activities

View our Organizational Chart

Office of the Assistant Secretary for Research and Technology organizational chart

Last updated: Wednesday, April 20, 2022