• Skip to primary navigation
  • Skip to main content
  • Skip to footer
Center for Efficient Mobility: A USDOT University Transportation Center

A USDOT University Transportation Center

  • About
    • About Us
    • People
    • Center Reporting
    • Contact Us
  • Research
    • Projects
  • Education
    • University Curriculum
    • K-12 Curriculum
  • Technology Transfer
    • Data Hub
    • Literature Library
Home / People / Directory of Key Center Personnel

Directory of Key Center Personnel

For general inquiries contact [email protected].

NameTitleContact Information
Josias (Joe) Zietsman, Ph.D., P.E.CEM Center Director[email protected]
Tara L. Ramani , Ph.D., P.E.CEM Deputy Director[email protected]
Jeremy Mattson, Ph.D.CEM University Lead – North Dakota State University [email protected]
Kanok Boriboonsomsin, Ph.D., P.E.CEM University Lead – University of California, Riverside[email protected]
Mary A. Fox, Ph.D., M.P.H.CEM University Lead, Johns Hopkins University[email protected]
Randall Guensler, Ph.D.CEM University Lead – Georgia Institue of Technology[email protected]
Robert M. Mayberry, Ph.D., M.P.H.CEM University Lead – Morehouse School of Medicine[email protected]
Wen-Whai Li, Ph.D., P.E.CEM University Lead – University of Texas at El Paso[email protected]
Melissa S. Tooley, P.ECEM Program Advisor[email protected]

Footer

TTI

Texas A&M Transportation Institute logo

Johns Hopkins

Johns Hopkins Bloomberg School of Public Health

Georgia Tech

Georgia Tech School of Environmental Engineering

UTEP

University of Texas at El Paso's College of Engineering (logo)

UC Riverside

Morehouse School of Medicine

North Dakota SU

Copyright © 2026 Center for Efficient Mobility (CEM)