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Staff - Energy Analysis and Sustainability

Meet some of our staff in the Energy Analysis and Sustainability Division.

David A. Arthur, PE

David A. Arthur, PEChief of Energy Analysis and Sustainability
MEng Automotive Engineering,
University of Michigan
BS Mechanical Engineering,
Pennsylvania State University
Phone: 617-494-2606


As chief of the Energy Analysis and Sustainability Division, David Arthur manages over a dozen highly specialized technical research staff who lead inherently-governmental projects in areas including fuels, electrification, energy safety, efficiency/emissions, and sustainability/resilience.

Arthur provided support to the U.S. Air Force, where Volpe created a decision-making tool that analyzed numerous energy architectures/strategies for Beale Air Force Base. Arthur also provided similar support to the Hampton Roads region (including Naval Station Norfolk), where Volpe developed an economic model for assessing direct and indirect impacts from recurrent flooding and extreme weather to the transportation infrastructure.

In addition to overseeing energy and transportation resilience projects, Arthur provides automotive engineering expertise to National Highway Traffic Safety Administration (NHTSA)-sponsored projects on automotive safety and software. Arthur has co-authored numerous publications—including reports on wireless power transfer and the functional safety of steer-by-wire, brake/traction, and electric power-steering systems—and has moderated panels including a session at a past CERV conference.

Prior to joining Volpe in 2012, Arthur spent 14 years in the private sector, where he was an inventor or co-inventor on 23 patents in the areas of hydrogen fuel cells and battery hybridization strategies. Arthur was also the program chief engineer at United Technologies’ fuel cell division for an automotive program and a stationary flow battery energy storage program for micro-grids. At General Motors, Arthur spent 11 years in various roles, including as lead systems engineer on the fuel cell program, as a regenerative braking engineer for the EV1 electric vehicle, and as a chassis engineer for the Precept hybrid-electric vehicle

View David Arthur’s LinkedIn profile.

Andrew Breck

Environmental Protection Specialist
MF Forestry, Yale University School of Forestry and Environmental Studies
BA East Asian Studies, Wesleyan University
Phone: 617-494-2213

Andrew Breck joined Volpe in 2011. Applying a dual background in the natural and social sciences, he analyzes data to support strategic decisions, plans, and policies for a variety of customers. His work addresses diverse topics, including sustainability, energy, safety, resiliency, and social equity. Breck currently works primarily on high-performance sustainable buildings and other resource efficiency topics for the Maritime Administration, alternative fuels and vehicles for the Federal Highway Administration (FHWA), data quality for the Federal Motor Carrier Safety Administration (FMCSA), and planning and asset management for the National Park Service (NPS).

Breck has also developed resource management plans for a variety of clients, proposing options and weighing the costs and benefits of each approach. His analyses focus on monetary as well as non-monetary costs and benefits, such as ecosystem services and social outcomes. One example of a relevant transportation application for this type of analysis is assisting transportation agencies in evaluating methods for managing the right-of-way real estate that they own and maintain for safety, aesthetics, asset preservation, and other desired values. 

Alexander K. Epstein, PhD

Alexander K. Epstein, PhDGeneral Engineer
PhD Engineering Sciences, Harvard University
SM Applied Physics, Harvard University
BS Engineering, Olin College
Phone: 617-494-2539

Dr. Alexander Epstein joined Volpe in 2011. He oversees transportation energy sustainability and vehicle-based safety projects spanning local, state, and federal transportation agencies. Dr. Epstein leads a portfolio of vehicle innovation research and implementation initiatives with major city fleets, develops partnerships with industry to demonstrate technologies, and leads or supports coordinated research in support of FMCSA, NHTSA, and other DOT operating administrations, connecting deployment at the local level with best practices at the federal level. Through his vehicle technology work, Dr. Epstein directly supports a number of Vision Zero initiatives across the U.S. to reduce vulnerable road user and other traffic fatalities, as well as decarbonization initiatives through the deployment of clean vehicle technologies.

In 2016, Dr. Epstein received the Federal Laboratory Consortium’s Excellence in Technology Transfer Award—U.S. DOT’s first in seven years—for new vehicle safety technology deployed through city fleet partnerships.

View Alexander Epstein’s LinkedIn profile.

Peter Herzig

Peter HerzigEnvironmental Protection Specialist
MS Environmental Studies, Antioch University New England
BA Peace and Justice Studies, Tufts University
Phone: 617-494-2406

Peter Herzig joined Volpe in 2014 as a student intern and joined the Energy Analysis and Sustainability Division as an environmental protection specialist later that year. Since joining the division, Herzig has provided technical and coordination support for the Commercial Aviation Alternative Fuels Initiative (CAAFI) as the program specialist. Herzig also provides geospatial analysis and project management support for a variety of transportation infrastructure projects. He is an active participant in Volpe’s Green Week, and led the 2015 winning Innovation Challenge team that proposed a visualization and screening tool designed to help U.S. DOT and other agencies efficiently integrate national social and transportation data into planning and operations to ensure that transportation and other public services are available to all users in all communities. Herzig also manages multiple projects through his role as a contracting officer’s representative.

Prior to joining Volpe, Herzig worked on a number of projects aimed at the corporate adoption of responsible business practices for a more sustainable global economy. Herzig is a Marine Corps veteran, having served in Iraq as an intelligence analyst and a security specialist at the U.S. Embassies in Zambia, the Dominican Republic, and Turkey.

Kristin C. Lewis, PhD

Kristin C. Lewis, PhDEnvironmental Biologist
PhD Organismic and Evolutionary Biology, Harvard University
BS Chemistry and Environmental Studies, Yale College
Phone: 617-494-2130

Dr. Kristin Lewis focuses on resilience in transportation; alternative jet fuel transportation, availability, and sustainability analyses; and environmental risk assessments.

Dr. Lewis supports the Federal Aviation Administration (FAA) as the head research and technical advisor to the FAA-sponsored Commercial Aviation Alternative Fuels Initiative (CAAFI) and provides technical expertise to the FAA as a member of the U.N. International Civil Aviation Organization Committee for Aviation Environmental Protection (ICAO CAEP) Alternative Fuels Task Force. She leads the development of the Freight and fuel Transportation Optimization Tool (FTOT), a national model for assessing optimal transport of commodities in a supply chain, which has been sponsored by the FAA, the Office of Naval Research, and the Department of Energy (DOE). Dr. Lewis participated in the winning Volpe Innovation Challenge team focusing on supporting the use of federal tools to address transportation-related climate change adaptation and resilience needs.

Dr. Lewis has performed a variety of analyses on alternative fuels availability, feasibility, environmental sustainability, and potential greenhouse gas benefits. She has worked with researchers at the U.S. Department of Agriculture, U.S. Forest Service, FAA, and others to develop and implement the use of a Feedstock Readiness Level tool for communicating maturity of feedstock development. With USDA and Forest Service colleagues, she co-led a subteam of the Farm to Fly 2.0 Initiative focusing on benchmarking feedstock readiness and developing guidance to facilitate readiness evaluations. She has also worked with researchers from FAA and the Air Force on exit criteria for the Fuel Readiness Level, an alternative jet fuel-focused adaptation of NASA/DOD Technology Readiness Level. Dr. Lewis has supported the FAA and National Park Service’s research efforts on aviation noise impacts on national park visitors as part of the Air Tour Management Plan program. Dr. Lewis also co-leads Volpe’s internal Transportation and Climate Change Community of Practice.

Dr. Lewis received the Presidential Early Career Award for Scientists and Engineers (PECASE) from President Obama in 2011.

Michael Scarpino

Michael ScarpinoTransportation Project Engineer
BS Mechanical Engineering, University of Maine
Phone: 617-494-3373

Michael Scarpino provides planning and management support for programs and activities that promote improved energy-related technologies and practices in the transportation sector. Since joining Volpe in 2013, his primary focus is providing support for inter-agency initiatives supporting fleets’ and end-users’ transition to alternative fuels and advanced vehicle technologies, as well as the development of the supporting fueling infrastructure. His current responsibilities involve providing technical and programmatic support for FHWA and DOE for various alternative fuel initiatives and activities, such as FHWA’s Alternative Fuel Corridor Designation Initiative and DOE’s Clean Cities Program. 

Prior to working for Volpe, Scarpino worked for 16+ years at DOE supporting the Clean Cities Program. Responsibilities included facilitating the efforts of the national Clean Cities coalition network to increase the use of alternative fuels and vehicles through the development of public-private partnerships. While serving as the team lead project manager, he oversaw the administration of a portfolio of projects and program support contracts totaling over $860 million in annual appropriations and American Recovery and Reinvestment Act (ARRA) funding for transportation-related projects.

Scarpino’s 30+ year federal career includes working for 12 years as a nuclear engineer for the Department of the Navy’s Portsmouth Naval Shipyard in New Hampshire and the Department of Energy’s Savannah River Site in South Carolina.

Erika A. Sudderth, PhD

PhD Organismic and Evolutionary Biology, Harvard University
BS Biochemistry and Cell Biology (Minor in Environmental Studies), UC San Diego
Phone: 617-494-3128

Dr. Erika Sudderth’s primary focus is sustainability analysis and assessment of environmental effects of renewable energy technology. She also provides data analysis and statistical modeling support for a variety of projects at Volpe. 

Dr. Sudderth supports the DOT Maritime Administration as the technical lead for sustainability project development and reporting efforts. She also supports an ARPAe renewable energy program by providing technical expertise and an assessment of potential environmental effects of a new tidal energy technology. Dr. Sudderth helped develop dose-response relationships for effects of aircraft noise on National Park visitors as part of the Air Tour Management program for the Federal Aviation Administration and the National Park Service. 

Prior to joining Volpe in 2014, Dr. Sudderth was a post-doctoral researcher at Brown University and UC Berkeley, investigating the effects of global change on plants and soil microbes, with subsequent consequences for species interactions and ecosystem function. Her research combined experimental manipulations, laboratory analysis, and statistical modeling. At Brown University, she also taught several introductory courses in environmental statistics and biological computing.

Emma Vinella-Brusher

Emma Vinella-BrusherOperations Research Analyst 
BA Environmental Studies, Carleton College
Phone: 617-494-3651

Emma Vinella-Brusher joined Volpe in September 2016. She first worked for DOT in summer 2015 as an intern with the OST Energy and Resource Efficiency Program. Her primary interest lies in the intersection between transportation and public health, particularly in providing all users with equitable, multimodal access to food and other resources.

With a background in environmental studies, Vinella-Brusher supports a variety of projects covering resource efficiency, waste management, resiliency, accessibility, and more. She splits her time with Volpe’s Transportation Planning Division, and has worked on projects sponsored by numerous DOT modes as well as the National Park Service (NPS), Federal Emergency Management Agency (FEMA), and other federal and local agencies. Vinella-Brusher is the co-lead for the Volpe Green Team and the Volpe Transportation Equity Community of Practice. Through these roles, she supports the expansion of sustainability and equity programming and project work at the Volpe Center.

View Emma Vinella-Brusher’s LinkedIn profile.

Stephen Costa

Technical Analyst
Phone: 617-494-3852

Daniel Flynn

Data Scientist
Phone: 617-494-3665

F. Scott Lian

General Engineer
Phone: 617-494-2811

Kirsten Van Fossen

Environmental Engineer
Phone: 617-494-2867

Updated: Monday, February 4, 2019