Webinar: Visual Exploration of Trajectory Data

Tuesday, April 7, 2020, 10:00am PDT
Webinar: Visual Exploration of Trajectory Data


This webinar will demonstrate the tremendous value of GPS trajectory data in understanding statewide travel patterns and measuring performance. First, Dr. Markovic (U of Utah) will conduct visual exploration of GPS trajectories that capture about 3% of all the trips in Utah. He will briefly discuss the problem of scaling GPS trajectories to the population, and then focus on the use of scaled trajectories in computing origin-destination matrices, vehicle-hours delays, vehicle-miles traveled, and trip-based performance measures. Second, Dr. Franz (CATT Lab) will demonstrate a suite of visual analytics that enables transportation agencies to easily explore terabytes of GPS trajectory data. He will demonstrate different tools and share the experience of 5 state DOTs that are currently using CATT Lab's trajectory data suite.


  • Trajectory data represents the most complete vehicle-probe data and provides unprecedented opportunity for transportation system analysis.
  • Transportation agencies can easily leverage visual analytics to obtain insights in statewide traffic patterns and performance measures.


This webinar is based on a study funded by the National Institute for Transportation and Communities (NITC) and conducted at the University of Utah. Read more about the NITC research: ...

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Webinar: Connected Vehicle System Design for Signalized Arterials

Tuesday, May 12, 2020, 10:00am to 11:00am PDT
Connected Vehicle System Design for Signalized Arterials


It can be expected that connected vehicles (CVs) systems will soon go beyond testbed and appear in real-world applications. To accommodate a large number of connected vehicles on the roads, traffic signal control systems on signalized arterials would require supports of various components such as roadside infrastructure, vehicle on-board devices, an effective communication network, and optimal control algorithms. In this project, we aim to establish a real-time and adaptive system for supporting the operations of CV-based traffic signal control functions. The proposed system will prioritize the communication needs of different types of CVs and best utilize the capacity of the communication channels. The CV data sensing and acquisition protocol, built on a newly developed concept of Age of Information (AoI), will support the feedback control loop to adjust signal timing plans.

Our multidisciplinary research team, including researchers from transportation engineering and electrical engineering, will carry out the project tasks along four directions that capitalized on the PIs’ expertise:

  1. Data collection and communication, in which the proposed system will be based on the AoI, prioritize the data needs of different types of CVs, and optimize the communication network;
  2. Dynamic traffic signal coordination, which will concurrently facilitate the progression of traffic flows along multiple critical paths; 
  3. Smart...
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Friday Transportation Seminar: Applying an Equity Lens to Automated Payment Solutions for Public Transportation

Friday, May 22, 2020, 11:30am to 12:30pm PDT

Due to the threat of the coronavirus known as COVID-19, we are adapting our event format. We are committed to making decisions that promote the success and well-being of our campus community and growing concerns across Oregon. Like an increasing number of universities nationwide, Portland State is taking additional important steps to respond to the global pandemic. Until further notice, all live events hosted by TREC will be online only.

Friday Transportation Seminars at Portland State University have been a tradition since 2000. You can join us online at 11:30 AM.


As transit agencies modernize their fare payment systems, opportunities to pay with cash are reduced. This speeds boarding and lowers the cost of operations while also creating new sources of ridership data. Arguably, service is improved for riders as well, where payment systems work across modes, and in some cases different transit providers, creating a more seamless and simplified experience. Still, about 15% of adults in the United States are without a...

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Webinar: Findings From 15 Years Of Travel Surveys At Portland Area Transit-oriented Developments (TODs)

Tuesday, June 2, 2020, 11:00am to 12:00pm PDT
15 years of travel surveys at portland transit oriented development


Since 2005, Portland State University has periodically surveyed occupants of recently developed  higher-density and mixed-use projects near transit, often referred to as Transit-Oriented Developments (TODs). The general objectives of the surveys were to better understand actual transit use, among other factors, of residents in these buildings. Between 2005 and 2018, the research team surveyed residents of nearly 50 TODs. With funding from Metro and the National Institute for Transportation and Communities, the research team carried out a two-pronged study drawing on this wealth of data. First, we explore geographic differences within the Portland region in terms of travel behavior and attitudes of TOD residents, including differences between TODs within the city of Portland, in eastside suburbs, and in westside suburbs. Second, we conducted a second wave of surveys for select TODs to understand if travel behavior or attitudes changed over time, particularly as neighborhoods surrounding the buildings were built up. In this webinar, we will present select findings from both aspects of the study.


  • Learn about the concept and goal of transit-oriented development 
  • Understand who lives in TODs, and how they get around 
  • Learn about the potential impact of TOD on travel behavior, including variations by location and over time.


This ...

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Student Study Abroad 2020: Sustainable Transportation in the Netherlands

Sunday, June 21, 2020, 8:00am PDT to Saturday, July 4, 2020, 5:00pm PDT

As the event is still months away, we are proceeding with Student Study Abroad 2020: Sustainable Transportation in the Netherlands as planned on June 21-July 4. TREC is actively monitoring the situation regarding COVID-19 and will provide an update if anything changes.

This four-credit (CE 495 / 595) Portland State University course creates an immersive experience to explore the Dutch approach to cycling, transit, innovative mobility and land use. The curriculum will feature material that provides a comparison between U.S. and the Netherlands problems, priorities, and solutions. Specific emphases on planning and engineering principles, policy, and practice will be explored through field trips, tours and guest lectures, while visiting Utrecht, Amsterdam, Delft, and Houten. Students completing this course will develop a broader understanding of sustainable transportation issues and expand their toolkit for context-sensitive solutions. This study abroad program will examines how the urban areas and transportation systems of that nation have been designed to promote transportation by foot, bicycle, and public transportation. You'll learn:

  • Design of bikeways, safe pedestrian crossings, and transit systems;
  • Urban expansion and land-use policies to promote travel by foot, bike, and public transport; 
  • ...
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Professional Study Abroad 2020: Active Transportation in the Netherlands

Sunday, June 21, 2020, 8:00am PDT to Saturday, June 27, 2020, 5:00pm PDT

As the event is still months away, we are proceeding with Professional Study Abroad 2020: Active Transportation in the Netherlands as planned on June 21-27. TREC is actively monitoring the situation regarding COVID-19 and will provide an update if anything changes.

Watch a video overview of the course with instructor John MacArthur.

Practitioners are invited to attend this one-week, 30-credit study abroad course biking in the Netherlands. Curriculum will compare U.S. and Netherlands problems, priorities and solutions with specific emphasis on design and engineering principles. Leading bicycle professionals responsible for creating and maintaining the Netherlands' world-class bikeway system will teach the Dutch approach to bike and pedestrian planning and design through an intensive week of classroom sessions and tours. The instruction and interaction with other participants will bring you up to speed on innovative practice and research and teach you the skills and techniques you need to start incorporating Dutch principles into your next project, and adapting them for a North American context.

Upon completion of the course, participants will be able to:

  • Select the appropriate bicycle facility design based on urban...
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