Our Team at Portland State University


Jennifer Dill, Ph.D.
Professor, Nohad A. Toulan School of Urban Studies and Planning
503-725-5173 | jdill@pdx.edu
Twitter | TREC Researcher Profile

Professor Jennifer Dill researches transportation decision-making processes and how those can inform policy and planning. Her recent projects focus on travel behavior, bicycling, shared mobility, transit-oriented developments, and health. She teaches courses on planning and research methods, as well as transportation. In addition to her Portland State University faculty role in the Toulan School, she serves as Director of the Transportation Research and Education Center (TREC) at PSU as well as Director of the U.S. DOT funded program National Institute for Transportation and Communities. Dr. Dill values the partnerships between PSU the community, and public agencies, both in her research and teaching. Prior to working at PSU, Dr. Dill held several positions working on air quality and transportation issues in California for governments and nonprofits. See her researcher profile here.

Hau Hagedorn
Associate Director

503-725-2833 | hagedorn@pdx.edu
Twitter | TREC Researcher Profile

Hau is the Associate Director of TREC at Portland State University and is responsible for the day-to-day management, operations and provides overall direction for the TREC's peer-reviewed research and technology transfer programs, and shaping workforce development efforts. She actively participates in national efforts on conducting and implementing research. She also oversees programming and delivery of professional development workshops through the Initiative for Bicycle and Pedestrian Innovation (IBPI). She is co-Chair of the TRB Conduct of Research Committee, Chair of the Oregon Bicycle and Pedestrian Advisory Committee (OBPAC), and member of the Region 1 Area Commission on Transportation (R1ACT). Hau has over 20 years of public and private sector experience in transportation. In her spare time, she runs to escape juggling the busy lives of three active kids.  

Lacey Friedly
Communications Coordinator

503-725-8545 | rlacey@pdx.edu

Lacey is the communications coordinator for TREC. She connects with researchers, writes articles, and documents (through pictures, videos, and model towns) the value of the transportation research being done at TREC and through the NITC program. Before TREC, Lacey was the acquisitions editor for Dark Discoveries magazine. She also managed the editing department at Ooligan Press, Portland State University's student-run publishing house. She graduated from PSU in 2013 with a master's in book publishing. In her spare time Lacey enjoys swimming, reading, and making stop-motion animation videos. she/her/hers

Tammy Lee, Ph.D.
Transportation Data Program Administrator

503-725-2884 | leetam@pdx.edu

Tammy is working on a variety of projects for TREC, including documentation, data synthesis, analysis, and visualization supporting ongoing work with PORTAL and Bike-Ped Portal. Tammy received a BS in Genetics & Plant Biology from UC Berkeley before earning a PhD in Environmental and Natural Resource Sciences from WSU. Prior to joining TREC she worked as a data scientist for a political digital media consulting firm. When not working she's either hiding in the forest or experimenting in the kitchen.

John MacArthur
Sustainable Transportation Program Manager

503-725-2866 | jhmacart@pdx.edu
Twitter | TREC Researcher Profile

Mr. MacArthur currently manages a complex Federal Transit Administration (FTA) grant to Develop and Test an Emergency Transportation Recovery Plan for the Portland, Oregon Region. This project requires close coordination and collaboration with a variety of public agency partners including city of Portland emergency management and transportation bureaus in addition to transit and other agencies critical to the region’s emergency transportation recovery efforts. In addition, this project is creating national training program that will be tested in six cities in early 2018. MacArthur is the Principal Investigator for TREC's electric bicycle research initiatives. His research also includes low-/no-emission vehicle infrastructure in Portland metro, as well as a climate change impact assessment for surface transportation in the Pacific Northwest and Alaska. Before joining the TREC staff, John was the Context Sensitive and Sustainable Solutions Program Manager for the Oregon Department of Transportation’s OTIA III State Bridge Delivery Program.

Cait McCusker
Communications Director

503-725-2843 | cmccusker@pdx.edu

Cait joined the TREC team in fall 2017 with an extensive background in event planning and strategic communications for green building policy and design. An avid biker and long-time volunteer with pedestrian advocacy group Oregon Walks, she is excited to tackle the dissemination of the center's progressive portfolio of transportation research on mobility. Storytelling is a critical piece to moving research from the theoretical realm to practical application, and Portland is the perfect transportation landscape for this. She served as the Chair of the 2019 Association of Pedestrian and Bicycle Professionals conference, and is currently the Board Chair of Professional Development for the Portland Chapter of WTS. Off-hours she spends her time with Tomato the Dog, tending to her 82 house plants, or biking around the city.

Brendan Williams
Research and Grants Program Administrator
503-725-2863 | brendan.williams@pdx.edu

Brendan is responsible for TREC’s day-to-day research project management and metrics tracking from inception to close-out. Also, he administers the competitive, peer-reviewed, project selection process including the annual Request for Proposal, Pooled Fund, small starts, and dissertation fellowships. Prior to this, he provided financial management and project coordination for Oregon State University’s Precollege Programs. Brendan enjoys playing soccer, going on long bike rides, traveling to other countries, or, most often, making pizza.


Jai Daniels
Advisor: John MacArthur
Jai Daniels is a first-year Master of Urban and Regional Planning (MURP) student at PSU, currently working with John MacArthur on a Transportation Recovery Plan for the Regional Disaster Preparedness Organization (RPDO). Read more about Jai in this March 2021 Student Spotlight interview. She is interested in urban livability, bicycle and pedestrian planning, transit planning, and the intersection between urban planning and the environment.

Kyuri Kim
Advisor: Jennifer Dill
Kyu Ri is a second-year Ph.D. student in urban planning at the Nohad A. Toulan School of Urban Studies and Planning. She is currently supporting Jennifer Dill and Nathan McNeil on the Research Roadmap for the AASHTO Council on Active Transportation. In the recent past, she supported Dr. Dill and Hau Hagedorn in transportation data analysis and visualization (including BikePed Portal and OHSU Census data) and other transportation research.

Rebeca Petean
Advisor: John MacArthur and Marisa Zapata
Rebeca Petean is a second-year Sociology Ph.D. student. Currently, she has taken on the role of Graduate Research Assistant for PSU’s Homelessness Research Action Collaborative (HRAC) joint venture with TREC on the project TCRP J-11/Task 40: Homelessness: A Guide for Public Transportation. She has also served as an Adjunct Instructor teaching Research Methods for Dominican University. She earned her Bachelor of Arts in Criminology and Criminal Justice, 2011, Masters of Science in Criminology and Criminal Justice, 2015, and Graduate Certification in Teaching Adult Learners from PSU, 2015. Her research interests include School-to-Prison Pipeline, Criminal Justice Decision-making, Police-Community Interactions, Developmental/Life Course Theory, Transportation Equity, and Justice.

Nora Stoelting
Transportation Education Program Coordinator
Advisor: Hau Hagedorn
503-725-2896 | treceducation@pdx.edu
Nora integrates tactical urbanism projects into PSU classes via the PSU Better Block PSU pathway program, and also designs the curriculum for TREC's transportation summer camp for Oregon high school students. She is pursuing a dual master's in Leadership for Sustainability Education and Urban and Regional Planning, and is excited about the ways these two programs intersect in building a more dynamic, connected, and sustainable world. Though she loves exploring outdoor recreation in the great state of Oregon, she is originally from the concrete jungle of Brooklyn, NY. She believes strongly in the power of collaborative, holistic, experiential teaching and learning to transform ourselves and the world. Outside of school and work, Nora likes to search for new trail races to run, plan outdoor adventures, answer people's questions about recycling, and go for long walks while listening to podcasts. Learn more about Nora in our Sept. 2020 Student Spotlight interview.