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Center for Climate-Smart Transportation

Executive Committee

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Shima Hamidi, PhD, MSc

CCST Director and Bloomberg Assistant Professor of American Health
Johns Hopkins University
Department of Environmental Health and Engineering

Dr. Hamidi is a transportation planner and smart growth advocate with expertise in measuring urban form and its quality of life impacts.

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Marsha Wills-Karp, PhD

Associate Director of Education Initiatives

Dr. Wills-Karp researches the environmental determinants of allergic and immune diseases across the lifespan.

Ebrahim Azimi

Ebrahim Azimi, PhD

CST Associate Director

Dr. Ebrahim Azimi is an Assistant Scientist at Johns Hopkins University Department of Health and Environmental Engineering. Ebrahim's research interests are applied econometrics and causal inference.

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Jeffrey Michael, EdD

Distinguished Scholar, Health Policy and Management
Johns Hopkins University

Dr. Michael conducts research on mobility services to develop policies for a safer transportation system that provides improved access to health determinants.

Andrea Christelle

Andrea Christelle, PhD

Vice-Provost for Research in Dine College

Dr. Christelle leads college-wide research and scholarship advocacy. She will also manage the Office of Research, which consists of the Institutional Grants Office, Diné Policy Institute, and the Institutional Review Board.

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Celeste Davis, PhD

Interim Associate Dean for Undergraduate Studies
Associate Professor, Transportation & Urban Infrastructure Studies

Dr. Davis, associate professor, is jointly appointed in the Departments of Transportation & Urban Infrastructure Studies and Civil Engineering at Morgan State University. She currently serves as Interim Associate Dean for Undergraduate Studies for the School of Engineering and is a licensed Professional Engineer in the State of Maryland.


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Reid Ewing, PhD, MCP

Distinguished Professor of City and Metropolitan Planning
University of Utah

Dr. Ewing is a Distinguished Professor of City and Metropolitan Planning at the University of Utah, Distinguished Chair for Resilient Places, long-time associate editor of the Journal of the American Planning Association, an associate editor of Cities, and a former columnist for Planning magazine.

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Junfeng Jiao, PhD

Associate Professor, Community and Regional Planning Program, University of Texas at Austin

Dr. Jiao is the founding director of Urban Information Lab, director of Texas Smart Cities, and a founding member of UT Austin's Good Systems Grand Challenge. His research focuses on Smart Cities, Smart Transportation, Urban Informatics, and Ethical AI. He uses different information technologies to quantify urban infrastructures and their influences on people’s behaviors. He first coined the term "transit deserts" and measured it in all U.S. cities.

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Paolo Santi, PhD

Principal Research Scientist at MIT Senseable City Lab

Dr. Santi is Research Scientist at MIT Senseable City Lab where he leads the MIT/Fraunhofer Ambient Mobility initiative, and a Senior Research at the Istituto di Informatica e Telematica, CNR, Pisa.