Director 

Acting Director of Policy, Planning, and Environment

As U.S. DOT Volpe Center director, Gregg G. Fleming is responsible for overseeing 700 staff applying innovations to address challenges across all modes of transportation. He provides strategic direction to the U.S. DOT Volpe Center goals, objectives, programs, and resources to support U.S. DOT’s strategic goals and help the transportation community navigate its most challenging problems.

Fleming has more than 36 years of experience in a wide range of leadership and managerial roles. Throughout his career as a federal employee—all with the U.S. DOT Volpe Center—he has earned a reputation as a transformational leader and effective problem-solver, with excellent communication skills and business acumen. Fleming’s responsibilities and contributions as a leader support unbiased, data-driven policy and regulatory decisions at the highest levels of the U.S. government.

As the former director of the U.S. DOT Volpe Center’s Center for Policy, Planning, and Environment, Fleming has guided the work of numerous multifaceted teams on projects supporting government, industry, and academia, including OST, the United Nations' International Civil Aviation Organization (ICAO), FAA, FHWA, National Park Service, National Aeronautics and Space Administration, Environmental Protection Agency, and National Academy of Sciences. 

In his role as director for the Technical Center for Policy, Planning, and Environment, Fleming oversaw the Economic Analysis, Policy Analysis and Strategic Planning, Transportation Planning, Environmental Measurement and Modeling, Energy Analysis and Sustainability, Environmental Science and Engineering, and Program Development and Capacity Building Divisions—as well as the CAFE Program Office. The Center for Policy, Planning, and Environment provides a full range of planning, evaluation, compliance, and implementation assistance to transportation decision makers at the local, regional, state, and federal levels. The Center for Policy, Planning, and Environment also maintains an extensive laboratory of measurement and monitoring instrumentation, including a quick-response capability to support all aspects of transportation-related environmental measurements. 

As Technical Center Director, he provided executive leadership and strategic vision for the diverse, 240+ person federal staff, which includes engineers, scientists, economists, planners, biologists, environmental protection specialists, information technology specialists, and mathematicians, as well as a contractor base of 50+ employees.

Fleming held responsibility for the design, development, and deployment of internationally recognized analysis tools, including FAA's Aviation Environmental Design Tool (AEDT) and FHWA’s Traffic Noise Model (TNM). AEDT is used for establishing national and international policies pertaining to aviation and the environment, including environmental stringencies and fuel burn, noise and emissions trends out to 2070. TNM is used for designing highway noise barriers and informing the federal distribution of noise mitigation funds related to highway noise barrier construction. 

Fleming was also responsible for evaluating, establishing, and maintaining standardized procedures for national and international aircraft noise certification. Most recently, he has been working with government, industry and academia on projects related to alternative fuels, with particular focus on approaches to achieving carbon-neutral growth. 

Fleming currently co-chairs the ICAO Modeling and Databases Group and represents FAA at the United Nations Framework Convention on Climate Change. He is chairman emeritus of the Transportation Research Board's Committee for Transportation Related Noise and Vibration and is active in the Society of Automotive Engineers, as well as numerous other technical organizations. 

Fleming holds a BS in electrical engineering from the University of Massachusetts Lowell (Lowell, MA). He has co-authored numerous peer-reviewed journal articles and participated substantially in the development of national and international standards and policy documents pertaining to transportation-related issues.