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The MITRE Corporation's Center for Advanced Aviation System Development
(MITRE/CAASD) Senior Management Team oversees the diversity of topics
MITRE/CAASD is called upon to work. In addition, the senior managers
work closely with counterparts in the Federal Aviation Administration
(FAA) and in civilian agencies worldwide to effect beneficial evolution
of Air Traffic Management systems.
Agam N. Sinha, Ph.D.
Senior Vice President of The MITRE Corporation
General Manager of CAASD
Director of the Federally Funded Research and Development Center
of the Federal Aviation Administration
 Dr.
Agam Sinha is a senior vice president of The MITRE Corporation,
general manager of CAASD, and director of the FAA’s Federally
Funded Research and Development Center. CAASD supports the FAA,
Transportation Security Administration (TSA), and international
civil aviation authorities in addressing operational and technical
challenges to meet aviation's capacity, efficiency, safety, and
security needs.
Full Biography
David G. Hamrick
Executive Director for ATM/CNS Evolution
 David
Hamrick is responsible for guiding CAASD’s work on terminal,
en route, oceanic and flow management decision support systems;
voice and data communications systems; ground-based and space-based
navigation systems; and aircraft surveillance systems. Additionally,
Mr. Hamrick is responsible for guiding CAASD’s work on information
system security, unmanned aircraft systems, airborne collision avoidance
systems, and broadcast service systems. He has more than 25 years
experience in ATM/CNS system modernization at MITRE CAASD.
Previous to joining MITRE, Mr. Hamrick designed digital voice switching
systems at AT&T Bell Telephone Laboratories. He earned a master’s
degree in operations research from Stanford University’s School
of Engineering and a bachelor’s degree in computer science
and applied mathematics from the University of Virginia’s
School of Engineering and Applied Science. He is a member of the
Air Traffic Control Association, American Institute of Aeronautics
and Astronautics, Institute of Electric and Electronic Engineers,
and the Tau Beta Pi Engineering Honorary Society.
Gregg A. Leone
Executive Director for System Transformation
and Security
 Gregg
Leone leads future vision planning and transformation efforts in
the NAS (National Airspace System). This includes ATM/CNS (Air Traffic
Management/Communications, Navigation, and Surveillance) research
initiatives, NAS evolution and modernization, as well as transportation
security projects. Additionally, he is international director for
CAASD’s aviation work in Canada, the Middle East, and Africa,
overseeing air traffic control and airspace modernization; restructuring
civil aviation authorities; airport privatization; ATM/CNS planning;
and the development of civil aviation safety and regulatory policy,
procedures, and programs.
Since joining MITRE in 1983, Mr. Leone has held several positions.
From 1996 to 2001, he was leader of CAASD’s Atlantic City
office, which supports activities at the Federal Aviation Administration
Technical Center. From 1989 to 1992, he helped the German Bureau
of Flight Safety (BFS) develop and implement a major system upgrade
of air traffic control functions and equipment throughout its country.
Mr. Leone earned a master’s degree in aeronautical science
from Embry-Riddle Aeronautical University and a bachelor’s
degree in computer science and applied systems software from Rochester
Institute of Technology.
Lillian Zarrelli Ryals
Executive Director for System Operations,
Safety, and Performance
 Lillian
Ryals leads CAASD’s work in airspace design, performance-based
navigation, traffic-flow management operations and procedures, aviation
system safety, system capacity and performance assessments, and
economic and policy analysis.
Ms. Ryals has 30 years experience working in the aviation sector
across a broad range of ATM/CNS (Air Traffic Management, Communications,
Navigation, and Surveillance) activities, including airborne collision
avoidance, air/ground data communications, Automatic Dependent Surveillance
Broadcast (ADS-B), decision support systems concepts, and automation
infrastructure across all NAS (National Airspace System) domains.
Previously, Ms. Ryals worked for Allied Bendix, designing its prototype
Traffic Alert and Collision Avoidance System. Throughout her career,
she has actively participated in aviation industry committees and
national and international standards bodies, including the International
Civil Aviation Organization and RTCA. She is a member of the American
Institute of Aeronautics and Astronautics, Air Traffic Control Association,
Society of Women Engineers, and Women in Technology. She earned
a bachelor’s degree in computer science from the University
of Maryland.
Detlev A. Foellmer
Director for the Business Resource Center
 Detlev
Foellmer manages the business, finance, and fiscal services and
functions that support the FAA, international and government systems
clients, and other CAASD initiatives. Mr. Foellmer is a member of
the MITRE Business Council.
Before joining MITRE in 2000, Mr. Foellmer was the chief financial
officer and administrator for the Koop Foundation Inc., a nonprofit
organization chaired by former U.S. Surgeon General C. Everett Koop.
Prior to that, he held senior financial management positions at
PRC Inc., and GTE/Contel Federal Systems. Earlier in his career,
he worked for the Marriott Corporation and an international medical
instrumentation and supply company.
Mr. Foellmer earned a master’s degree and a bachelor’s
degree in business administration from the University of Maryland.
C. Vanessa Fong
Director for Joint Agency Transportation
Security
 Vanessa
Fong is responsible for CAASD’s Transportation Security mission
area focusing on integration, situational awareness, collaboration,
net-centric operations, and interoperability in shared transportation
security missions across government agencies, such as the FAA, Department
of Defense, Department of Homeland Security, and the Joint Planning
and Development Office. Additionally, she is a member of the MITRE
Engineering Advisory Council, which enhances corporate knowledge
management in systems engineering.
Ms. Fong was the first director for the NAS (National Airspace
System) Enterprise Architecture Council, which was created in 2004
to apply systems engineering and integrated domain expertise to
CAASD’s NAS effort. She has directed a broad range of air
traffic management projects, overseen the CAASD air traffic management
laboratory and prototyping efforts, and led the development and
technology transfer of the User Request Evaluation Tool conflict
probe capability.
She has earned a master’s degree in chemistry from the University
of Wisconsin, a master’s degree in computer science from Johns
Hopkins University, and a bachelor’s degree in chemistry from
the National Tsing-Hua University, Taiwan. She has been named an
Outstanding Woman Engineer of Color by the U.S. Black and Hispanic
Engineer and Information Technology magazine.
Gerald M. Friedman
Director for Enterprise Architecture
and Integration
 Gerald
Friedman leads the enterprise architecture work program and product
development for the multiagency Next Generation Air Transportation
System. He is responsible for multiagency crosscutting system engineering
work for NextGen, including integrated surveillance and network
centric operations, and represents CAASD in the FAA’s Enterprise
Architecture Board. Additionally, he initiated and is CAASD’s
director for the cross-MITRE initiative for the Department of Defense-Federal
Aviation Administration Integration and Interoperability of avionics/airspace
access, net-centric operations, weather systems, safety management,
integrated surveillance, and unmanned aerial systems solutions.
Since joining MITRE in 1980, Mr. Friedman has held managerial and
technical leadership positions for the Department of Defense and
civil agency programs. These positions included chief architect
of the U.S. Air Force and director of the U.S. National Expert Office
for air command and control at the North American Treaty Organization’s
headquarters in Brussels, Belgium. Additionally, he held positions
in MITRE’s software, networking, and information security
skill centers.
Mr. Friedman earned a master’s degree in systems engineering
from the University of Pennsylvania and a bachelor’s degree
in electrical engineering from Lehigh University.
Christopher J. Hegarty, D.Sc.
Director for Spectrum Management
 Christopher
Hegarty has been a technical advisor to the U.S. government in a
number of forums, including the International Civil Aviation Organization,
International Telecommunication Union, and bilateral and multilateral
negotiations regarding the compatibility of Global Positioning System
with foreign satellite navigation systems.
Dr. Hegarty currently serves as chair of the Program Management
Committee and co-chair of Special Committee 159—both for RTCA.
He served as president of the Institute of Navigation in 2008 and
editor of ION’s quarterly journal from 1997 to 2006.
Dr. Hegarty earned a doctorate degree in electrical engineering
from George Washington University, and a master’s degree and
a bachelor’s degree in electrical engineering from Worcester
Polytechnic Institute (WPI). In 2006 he received WPI’s Hobart
Newell Award, and coauthored and co-edited the second edition of
Understanding GPS: Principles and Applications, published by Artech
House. In 2005 he received a Department of State’s Superior
Honor Award and ION’s Johannes Kepler Award.
Robert L. Humbertson
International Director for Asia Pacific
and
Director of the MITRE Aviation Institute
 Robert
Humbertson’s responsibilities include the transfer of knowledge
and technology to nations—India, China, Japan, Korea, Singapore,
and other countries in the Asia Pacific region—working with
MITRE in such disciplines as communications, navigation and surveillance,
air traffic management planning and implementation, airport system
integration and capacity analysis, delay/saturation modeling, airspace
design, terminal area navigation and required navigation performance
procedures development, and training for implementation of Safety
Management Systems.
Additionally, he heads the MITRE Aviation Institute, a continuing
education resource that provides professional development opportunities
to MITRE staff and the worldwide aviation community. Since joining
MITRE in 1999, Mr. Humbertson has worked on various FAA and Joint
Planning and Development Office projects, many of which have led
to the Next Generation Air Transportation System.
Prior to MITRE, Mr. Humbertson was air traffic management director
for BAE Systems and the technical director for BAE SYSTEMS on the
Systems Engineering and Technical Assistance Support contract (SETA-I,
and subsequently SETA-II) for the FAA. Also, he worked for a large
consulting firm that specialized in special-use airspace needs analysis
for the Department of Defense. He is a U.S. Air Force veteran, having
spent more than two decades in international ATC (air traffic control).
Mr. Humbertson earned a master’s degree in business and international
marketing, and a bachelor’s degree in business and ATC facility
management from Troy University. Additionally, he has certifications
in systems engineering from the University of Maryland and training
in enterprise architecture from the MITRE Institute.
Bernard Lisker, Ph.D.
International Director for Latin America
and Europe
 Dr.
Bernard Lisker is International Director for Latin America and Europe
at the MITRE Center for Advanced Aviation System Development. His
responsibilities include transfer of technology to nations working
with MITRE in technical fields such as airport capacity and delay/saturation,
airspace design, noise modeling, and terminal area navigation (RNAV).
Since joining MITRE in 1986, Dr. Lisker has worked on many FAA
research and development projects, one of which led to acceptance
of dependent instrument approaches to converging runways. He also
worked with the FAA on the development of simultaneous instrument
approaches to converging runways, using O’Hare airport as
a case study. Internationally, he has been involved with projects
in Belgium, France, Italy, the Netherlands, Spain, Argentina, Ecuador,
Mexico, Singapore, Taiwan, and many other nations throughout the
world.
Dr. Lisker is an Electrical Engineer. He also holds Master of
Science and doctorate degrees in Flight Transportation from the
Department of Aeronautics and Astronautics, Massachusetts Institute
of Technology.
Debra A. Pool
Associate Director of System Operations,
Safety, and Performance
Debra Pool oversees and leads CAASD’s support of the FAA’s
national airspace redesign; airspace modeling; new procedures development
in the terminal, en route, and oceanic environment; national airspace
performance analysis and modeling, and international work in airport
and airspace design.
She has more than 25 years experience in ATM (air traffic management)
system modernization and has contributed to a wide variety of FAA
projects. These include developing decision-support tools for controllers
and traffic managers, ATM/CNS (Communications, Navigation, and Surveillance)
real-time human-in-the-loop simulations, airspace, and procedure
design; and performance analysis of the national airspace system.
Ms. Pool earned a master’s degree in computation and optimization
mathematics from the University of Illinois and a bachelor’s
degree in mathematics from the University of Vermont.
James K. Reagan
Associate Director for the ATM/CNS Evolution
Division
James Reagan is responsible for guiding CAASD’s work on terminal,
en route, oceanic and flow management decision support systems;
voice and data communications systems; ground-based and space-based
navigation systems; and aircraft surveillance systems. Additionally,
Mr. Reagan is responsible for guiding CAASD's work on information
system security, unmanned aircraft systems, airborne collision avoidance
systems, and broadcast service systems. He has more than 15 years
experience in ATM/CNS system modernization at CAASD.
Since joining MITRE in 1985, Mr. Reagan has held several roles,
including project team manager for a U.S. Navy submarine communications
improvement initiative, outcome leader for the navigation services
improvement project, and, most recently, program manager for the
aircraft surveillance systems project.
Prior to joining MITRE, Mr. Reagan served in the U.S. Navy submarine
service on the U.S.S. James Madison, a fleet ballistic missile submarine.
He earned a master’s degree in electrical engineering from
George Washington University and a bachelor’s degree in ocean
engineering from the U.S. Naval Academy.
Glenn F. Roberts, Ph.D.
Chief Engineer
Glenn Roberts directs MITRE’s independent research and development,
and special initiative programs in civil aviation and air traffic
management. Additionally, he directs CAASD’s activities in
technology transfer, technical publishing, intellectual property,
external research, and academic collaboration. He is in charge of
strategy for the center’s extensive laboratory infrastructure,
and was formerly principal architect of its aviation laboratories
and simulation environments, and served on MITRE’s information
technology innovation team.
Dr. Roberts is a member of the American Institute of Aeronautics
and Astronautics and the Air Traffic Control Association, in addition
to Tau Beta Pi Engineering Honor Society and Eta Kappa Nu Electrical
Engineering Honor Society. He received a doctorate degree and a
master’s degree in engineering, and a bachelor’s degree
in computer and systems engineering from Rensselaer Polytechnic
Institute.
Hassan Shahidi, D.Sc.
Associate Director for System Operations,
Safety, and Performance
 With
more than 20 years experience in ATC (air traffic control) modernization,
currently Dr. Shahidi oversees modeling, analysis, and research
on the RNAV/RNP (Required Area Navigation/Required Navigation Performance)
Aviation Safety Information Analysis and Sharing initiative. In
addition, he oversees a number of key safety initiatives, including
Safety Management System, runway incursions human factors analysis,
and prevention research.
Previously, Dr. Shahidi was the program manager for RNAV/RNP, which
included research, development, and modeling for domestic and international
implementation. He serves on a number of industry panels, including
the Commercial Aviation Safety Team and the International Civil
Aviation Organization Task Force for performance-based navigation.
Before joining MITRE, Dr. Shahidi led ATC modernization and aviation
human factors activities at Systems Control Technology and FAL Inc.
Dr. Shahidi has received the RTCA Outstanding Achievement Award.
He has a private pilot license, and is a member of the Air Traffic
Control Association, Institute for Operations Research and the Management
Sciences, and Tau Beta Pi Engineering Honorary Society. He earned
a doctorate degree in systems engineering management from George
Washington University, a master’s degree in systems engineering
from the University of Virginia, and a master’s degree in
economics and a bachelor’s degree in international economic
studies from George Mason University.
Joseph H. Sinnott
Director for Program Management and Integration
 Joseph
Sinnott is responsible for program management, integration, and
planning for CAASD’s overall work program. Mr. Sinnott also
serves as the Federally Funded Research and Development Center member
on FAA’s NextGen Review Board.
Mr. Sinnott’s 25-year career with CAASD spans a broad spectrum
of work areas, including National Airspace System architecture and
operational concepts, traffic flow management, air traffic procedures,
airspace design, and operational performance analysis, as well as
modeling and simulation, airspace user economics, and air transportation
policy.
Prior to joining MITRE, Mr. Sinnott was the Director of Research
and Engineering at a consulting firm that specialized in complex
and sensitive surface transportation planning and policy analysis.
He earned a master’s degree in transportation systems analysis
from George Washington University and a bachelor’s degree
in civil engineering from Tufts University. He is a member of the
Air Traffic Control Association, the Institute for Operations Research
and the Management Sciences, and the American Institute of Aeronautics
and Astronautics.
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