Who We Are


We inform transportation decision making through primary research, building the capacity of the transportation workforce, supporting the education of future transportation professionals, and engaging students in research. 

The Transportation Research and Education Center (TREC) is housed at Portland State University (PSU), and we manage a multitude of programs, grants, and projects - including:

  • The National Institute for Transportation and Communities (NITC) is one of five University Transportation Centers (UTC's) funded by the U.S. Department of Transportation’s (learn more about the grant here). We pursue our theme — improving mobility of people and goods to build strong communities — through research, education and technology transfer in conjunction with our partner universities: University of Oregon, Oregon Institute of Technology, University of Utah and new partners University of Arizona and University of Texas at Arlington.
  • The Initiative for Bicycle and Pedestrian Innovation (IBPI), which shares active transportation insight with professionals and educators through training opportunities, conferences and outreach.
  • Transportation-focused education and development opportunities at PSU, such as the weekly Friday Transportation Seminars. As the campus-wide transportation center, TREC helps build the reputation of PSU for transportation that serves livable communities.

Our History

Our faculty expertise in innovative transportation research and education earned Portland State a federally funded university transportation center in 2006. That grant, named OTREC, ran through 2014. Portland State used its success in running the OTREC grant program to successfully compete for a second U.S. Department of Transportation grant that became the NITC program. That program was later extended and renewed, with the center competing successfully to be designated one of U.S. DOT's five national university transportation centers.

About Portland State University

As Oregon's only urban public global research university, Portland State offers tremendous opportunity to nearly 28,000 students from all backgrounds. Our mission to "Let Knowledge Serve the City" reflects our dedication to finding creative, sustainable solutions to local and global problems. Our location in the heart of Portland, one of America's most dynamic cities, gives our students unmatched access to career connections and an internationally acclaimed culture scene. "U.S. News & World Report" ranks us among the nation's top 10 most innovative universities. http://www.pdx.edu

Our Team at Portland State University

Jennifer Dill, Ph.D.
Interim Vice President, Research and Strategic Partnerships at Portland State University
Professor, Nohad A. Toulan School of Urban Studies and Planning
503-725-5173 | jdill@pdx.edu
Twitter | TREC Researcher Profile

Director of TREC and the National Institute for Transportation and Communities (NITC), Jennifer is also a professor of urban studies and planning. Currently serving as Interim Vice President of Research at Portland State University, she is an internationally cited researcher on sustainable transportation. Among her research projects are Lessons from the Green Lanes: Evaluating Protected Bike Lanes in the U.S., Understanding Types of Cyclists Nationally, Pedestrian Observation and Data Collection Curriculum and more. See her researcher profile here.

Hau Hagedorn
Associate Director

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

Hau Hagedorn is the Interim Director of TREC at Portland State University and manages several large research programs, including the National Institute of Transportation and Communities (NITC) and the Initiative for Bicycle and Pedestrian Innovation (IBPI). Through IBPI, Hau coordinates workshops that help provide training to practicing bicycle-pedestrian professionals and more recently training university faculty on integrating bicycle and pedestrian topics into their curriculum.

Anna Archer
Transaction Specialist
503-725-5954 | alnelson@pdx.edu

Anna is a Transaction Specialist who supports the Departmental Research Administrator by coordinating new hires, travel, contracts, and student support for grant funded activities at TREC. She is a Portland State graduate, with a bachelor's in Business Administration, focusing in HR Management. She recently moved back to Portland after teaching abroad in South Korea and China.

Michael Espinoza
Events and Office Coordinator

Michael is the Events and Office Coordinator for TREC, overseeing logistics for events and balancing the books. He graduated from Boston University with a B.A. in Environmental Analysis and Policy and spent several years as an Environmental Educator in both Milwaukee, Wisconsin and Portland, Oregon. Michael speaks three languages, has a passion for public transit and loves biking to work every day.

Lacey Friedly
Communications Coordinator

503-725-8545 | rlacey@pdx.edu

Lacey is the communications coordinator for TREC. She connects with researchers, writes articles and takes photos to help spread the word about 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

Cheyanne Kalainoff
Financial Research Administrator

503-725-2829 | c.kalainoff@pdx.edu

Cheyanne focuses on the financial administration of grants for the TREC department, including their NITC grant. She has extensive experience in budget development, financial monitoring, and award management. She serves as the liaison between TREC, our partner’s administrative offices, and PSU’s Sponsored Projects Administration (SPA). She has been at PSU since 2015. Prior to coming to PSU, she was a Financial Analyst/Program Administrator and Contract/Internal Auditor at Sandia National Laboratories. She has a Masters in Accounting from the University of New Mexico and a Bachelors of English from the University of Iowa. She and her husband have two children and two Siberian Huskies.

Tammy Lee
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 landscape for this "living laboratory." Off-hours she spends her time with Tomato the Dog, tending to her 72 house plants, or advocating for more equitable infrastructure in Portland.

Eva-Maria Muecke
Research Program Administrator
503-725-2897 | emuecke@pdx.edu

Eva-Maria administers NITC's research program at TREC, which involves a range of responsibilities including guiding projects through their life cycle, managing RFPs and peer reviews, compiling performance data for projects and NITC, and generating reports for NITC’s funder, U.S. DOT. She learned about the power of data, interdisciplinary research, and pursuing multiple lines of inquiry in solving problems through her graduate work in Ecology, Evolutionary Biology, and Behavior, research, and more than 10 years of teaching experience. She holds a Ph.D. from Michigan State University and is passionate about all that supports a sustainable future, including transportation research. She has been riding a bike since she was a midget, and is happy to get to ride a bike to work again (at least part of the way) after several years of hiatus.


Lisa Patterson
Technology Transfer and Workforce Development Program Manager
503-725-2838 | l.patterson@pdx.edu

Lisa enjoys working with researchers, students, faculty and practitioners to create a transportation community and network that connects our research with practice and fosters the development of current and future transportation professionals. She graduated from PSU with a masters in Civil Engineering and worked in the transportation and construction management industry for 7 years before returning to PSU to work at TREC. Her passion for professional development and student success also shows through her board involvement on WTS and ITE, transportation professional organizations and Minds Matter Portland, an after school program for accomplished high school students from low income families. In the evenings and weekends, you'll find her chasing after her three kids (two dogs and a toddler), playing volleyball, running, taking random art classes or trying new local restaurants.

Hui Zhang
Web Developer
503-725-8545| zhui@pdx.edu

Hui moved to the Portland area in 2014, attracted by the green scenery and friendly environment. He has been working in the software engineering field for many years, and believes learning is a lifelong experience. He loves to learn new things and enjoys the process.

Our Core Researchers at Portland State University

We embrace interdisciplinary research by exploring the unique ways in which transportation intersects with so many aspects of our daily lives. Below are the core of our research faculty and staff, but you can find our comprehensive list of contributors in our Researcher Directory.

Kelly Clifton
Professor, Civil and Environmental Engineering

Twitter | TREC Researcher Profile

Professor of civil and environmental engineering, 2016 Fulbright Scholar, and major contributer to multimodal modeling. She has led research efforts into Contextual Influences on Trip Generation, Examining Consumer Behavior and Travel Choices, the Development of a Pedestrian Demand Estimation Tool and more.

Jennifer Dill, Ph.D.
Director, Transportation Research and Education Center (TREC)
Interim Vice President, Research and Strategic Partnerships at Portland State University
Professor, Nohad A. Toulan School of Urban Studies and Planning
503-725-5173 | jdill@pdx.edu
Twitter | TREC Researcher Profile

Director of TREC and the National Institute for Transportation and Communities (NITC), Jennifer is also a professor of urban studies and planning. Currently serving as Interim Vice President of Research at Portland State University, she is an internationally cited researcher on sustainable transportation. Among her research projects are Lessons from the Green Lanes: Evaluating Protected Bike Lanes in the U.S., Understanding Types of Cyclists Nationally, Pedestrian Observation and Data Collection Curriculum and more. See her researcher profile here.

Miguel Figliozzi
Professor, Civil and Environmental Engineering

TREC Researcher Profile

Professor of civil and environmental engineering, director of the Transportation Technology and People (TTP) research lab, widely cited scholar and member of the Transportation Research Board Network Modeling Committee and Transportation and Logistics Committee.

His research investigates things like the Impact of Advanced Technologies on Livability and Multimodal Transportation Performance Measures in Arterial CorridorsExploiting New Data Sources to Quantify Arterial Congestion and Performance Measures at a Regional Scale, and more.

Aaron Golub
Director and Associate Professor, Nohad A. Toulan School of Urban Studies and Planning

TwitterTREC Researcher Profile

Aaron's research explores policy, finance, environmental justice, public transportation, sustainability, bicycle transportation, social change, the Distributional Effects of Regional Transportation Plans and Projects, Planning for livable communities, and more..

Jenny Liu, Ph.D., College of Urban & Public Affairs

Assisant professor of urban studies and planning, assistant director of the Northwest Economic Research Center, and noted environmental and resource economist.

Jenny Liu's research has looked into Understanding the economic impacts of urban greenway infrastructureMeasuring the Impacts of Social Media on Advancing Public Transit, and the Economic and Business Impacts of Street Improvements for Bicycle and Pedestrian Mobility.

Christopher Monsere, Ph.D., Maseeh College of Engineering and Computer Science

Associate professor of civil and environmental engineering, chair of Civil and Environmental Engineering at PSU, and nationally cited researcher into multimodal safety.

Christopher Monsere's research efforts include Improving Walkability Through Control Strategies at Signalized IntersectionsImproving Adaptive Response Signal Control Performance, and Effective Design Treatments for Right-Turns at Intersections with Bicycle Traffic .

Avi Unnikrishnan, Ph.D., Maseeh College of Engineering and Computer Science

Associate professor of civil and environmental engineering and member of the Transportation Research Board (TRB) Network Modeling Committee, Traffic Flow Theory Committee, and the ASCE Intermodal and Logistics Committee.

Avi Unnikrishnan has contributed to Stochastic and Dynamic Hyperpath Equilibrium Models, Preventing End of Queue Accidents, and the development of a transportation undergradute research fellowship, a program designed to equip engineering undergraduate students with critical thinking and research skills relevant to transportation engineering and planning with a livability theme.

Liming Wang, Ph.D., College of Urban & Public Affairs

Assistant professor of urban studies and planning, data-driven researcher into land use and transportation planning, and developer of the Transportation Cost Index (TCI), a comprehensive performance measure for transportation and land use systems.

Liming Wang has conducted research on Continuous Data Integration for Land Use and Transportation Planning and ModelingEvaluating and Enhancing Public Transit Systems for Operational Efficiency, Service Quality and Access Equity, and the development of a data science course, Introduction to Scientific Computing for Planners, Engineers, and Scientists.

Nathan McNeil, Ph.D., College of Urban & Public Affairs

Research Associate

Nathan McNeil's research has looked into Evaluating Efforts to Improve the Equity of Bike Share SystemsContextual Guidance at Intersections for Protected Bicycle Lanes and Bicycle and Pedestrian Traffic Monitoring Data Quality, among others. He also worked on the FTA Manual on Pedestrian and Bicycle Connections to Transit, published in 2017.

Sirisha Kothuri, Ph.D., Maseeh College of Engineering and Computer Science

Research Associate

Sirisha Kothuri's research includes investigations into Incorporating Pedestrian Considerations into Signal TimingImproving Walkability Through Control Strategies at Signalized IntersectionsAddressing Bicycle-Vehicle Conflicts with Alternate Signal Control Strategies and Improving Bicycle Crash Prediction.

Joseph Broach, Ph.D., College of Urban & Public Affairs

Research Associate

Joe Broach's research projects include Incorporate Emerging Travel Modes in the Regional Strategic Planning Model (RSPM) Tool, Transferability & forecasting of the Pedestrian Index Environment (PIE) for modeling applications, and Travel Mode Choice Framework Incorporating Realistic Bike and Walk Routes.

Contact Us

Get in Touch

Email: asktrec@pdx.edu

Phone: 503-725-8545

Mailing Address:
P.O. Box 751
Portland, OR 97207 

Media Requests

Cait McCusker, Communications Director


Visit Us at Portland State University (PSU)

Our Office: Fourth Avenue Building at PSU 1900 SW Fourth Ave., Suite 175 

Detailed directions to the TREC Office for BVI visitors:


Friday Transportation Seminar: Karl Miller Center at PSU, 615 SW Harrison St., Room 465

Detailed directions to the Friday Transportation Seminar for blind or visually impaired visitors:

The Harrison Street entrance to the Karl Miller Center is between 6th and Broadway on the north side of Harrison. Walking west from 6th Avenue, the entrance to the building will be on your right, about ten paces from the edge of the building or about 16 steps from the textured curb cut on the street corner. There are two shallow steps to your right, leading down to the glass double doors. Once you're inside, you'll be facing a big open lobby area. The floor slopes down slightly, and there's a hand rail on the wall to your right. When you get to the end of the hand rail, keep walking in the same direction it was leading as if it continued in a perfectly straight line, and you should arrive at the opposite wall where there's another hand rail. (The room has two tables and two support columns to navigate around). Once you get to the other side of the lobby, if you come to a set of glass doors instead of a plain wall, then you're too far to the right. You need to follow the wall to your left until you reach the next hand rail. This rail will lead you to the elevators, which are on the same side of the wall as the hand rail. Since you're on the ground floor there's only one button. On the 4th floor, you'll step out of the elevator and turn right. The room you're facing now is room 470; it's about 12-15 steps directly in front of you. There's usually a round table and chairs sitting by the wall in the hallway on the left side of room 470. Room 465 (where the seminar takes place) is the next room to the left, just past this table and chairs.