Photo credit: Ian Sane
John MacArthur and Nathan McNeil, Portland State University

This article was authored by Stefani Cox of the Better Bike Share Partnership (BBSP), and cross-posted from BBSP News.

This week, Portland State University’s Transportation Research and Education Center (TREC) releases a new research report comparing equity-oriented programs across several U.S. bike share systems. The research finds a variety of methods in place, ranging from affordability to internal hiring practices and beyond. The report is assisted by Toole Design...

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A screenshot from the STAT tool shows a map with embedded Tweets by location
Xiaoyue (Cathy) Liu, University of Utah; Ran Wei, University of California, Riverside; Aaron Golub and Liming Wang, Portland State University

With today's profusion of open data sources and real-time feeds, transit agencies have an unparalleled opportunity to leverage large amounts of data to improve transit service. Thanks to NITC researchers,...

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An aerial view of a multifamily housing complex next to a road
Photo by cegli
Kelly Clifton, Portland State University

Many cities are reconsidering their reliance on ITE's Trip Generation Manual, now in its 10th edition. 

Kelly Clifton, TREC researcher and associate dean for research of Portland State University's Maseeh College of Engineering & Computer Science, is one of the people leading the charge to identify better, more nuanced ways to anticipate transportation demand; especially person (non-car) trips. In an extended series of TREC projects, Clifton and...

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People on e-scooters

The National Institute for Transportation & Communities (NITC) research consortium, led by Portland State University, has awarded $1.035 million in total funding for ten research projects spanning five universities. This year we focused funding on micromobility, traffic, meeting the transportation needs of underserved populations and people with disabilities, and the intersection of transportation and housing.

Led by Reid Ewing of the University of Utah, Nicole Iroz-Elardo and Arlie Adkins of the University of Arizona
 
Led by Yao-Jan Wu of the University of Arizona, Xianfeng Yang of the University of Utah and Sirisha Kothuri of Portland State University
This multi-university collaboration builds upon previous research led by Yao-Jan Wu in multi-modal traffic monitoring, as well as...
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Darshan Chauhan, Portland State University

Darshan Chauhan is a graduate research assistant in civil engineering at Portland State University. He currently serves as the treasurer of STEP (Students in Transportation Engineering and Planning), PSU's transportation student group, and generously volunteers his time at a variety of transportation-related events via PSU's Transportation Research and Education Center (TREC). He will defend his masters thesis on network flow problems this year, and plans to continue on to earn his PhD. In the 2018/2019 academic year, Darshan earned a Walter H. Kramer Fellowship from Portland State University.

LinkedIn


Tell us about yourself?

I am a second-year Masters student in the civil engineering program with a transportation focus at PSU. I have been training with Prof. Unnikrishnan here to understand, model, and tackle uncertainties in different transportation networks. Before coming to Portland, I completed my Bachelor’s degree in civil engineering at BITS Pilani Hyderabad Campus, working as an undergraduate researcher in areas like fracture mechanics, optimization, and alternate cementitious materials through my junior and senior years. After completing my masters, I am continuing for my Ph.D. in transportation at PSU. Apart from school, I really enjoy...

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TREC Director Jennifer Dill speaks to TURF fellows

Our Transportation Undergraduate Research Fellowship (TURF) program is in its third year, and we're excited to introduce our 2019 cohort. The TURF program advances critical thinking and research skills under the guidance of a PSU transportation faculty mentor. This year's fellows are working on various research initiatives at TREC, including e-scooters, bicycle and pedestrian count data, multimodal trip generation, pedestrian safety and equitable transit.

TURF is funded by an education grant through our U.S. DOT funded program the National Institute for Transportation and Communities (NITC). Students were selected through a competitive application process; we had 103 applications from 23 U.S. states and 4 countries.

The TURF fellows will spend six weeks during the summer of 2019 at Portland State University, tackling transportation engineering and planning research questions.

MEET THE 2019 TURF FELLOWS

Anaisabel Crespo - Leiva, SUNY...

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An older couple jogs through a park
Photo Credit: Tomwang112
Ivis Garcia Zambrana, University of Utah; Alan DeLaTorre, Portland State University

Research on older adults frequently explores the notion of “aging in place”—providing older adults the opportunity to continue to live in their own homes and communities. However one’s ability to stay or leave, particularly in old age, often depends on the built environment. An accessible neighborhood that prioritizes mobility affords the ability to meet basic needs like goods, services, and social activities.

This life-space mobility is...

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Cars waiting at a traffic signal
Photo by Canetti
Principal Investigator: Gerardo Lafferriere, Portland State University
Learn more about this research by viewing the Executive Summary and the full Final Report on the Project Overview page.

Automobile traffic congestion in urban areas comes with significant economic and social costs for everyone. According to the 2015 Urban Mobility Report, the total additional cost of congestion was $160 billion. As more people move to metropolitan areas, the problems only intensify. The latest NITC report offers a new approach to urban traffic signal control based on network consensus control theory which is computationally efficient, responsive to local congestion, and at the same time has the potential for congestion management at the network level.

Traffic signals represent a significant bottleneck. As...

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Pedestrians crossing a street
Principal Investigator: Kelly Clifton, Portland State University
Learn more about this research by viewing the full Final Report on the Project Overview page.

The latest NITC report offers improved tools for pedestrian modeling.

Led by Kelly Clifton of Portland State University, researchers had previously created the the MoPeD pedestrian demand model as well as a pedestrian index of the environment (PIE) for forecasting pedestrian travel. The PIE index improved the sensitivity of walk trip models by incorporating contextual features of the built environment that affect walking behavior in the Portland, Oregon region. Read about Clifton's previous body of work on context-specific modeling.

Useful for academic researchers in transportation, Clifton's research provides a framework for incorporating pedestrian travel behavior forecasts into traditional four-step travel demand models.

Since the method was based on Portland, the next step was to adapt the tools for wider use. In this new report, Clifton and Jaime Orrego-Onate of...

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Pedestrians cross near a light rail amid mixed-use development

The National Institute for Transportation and Communities (NITC) program has released its 2019 general research request for proposals. Faculty at NITC's partner universities* are invited to submit abstracts by March 29, 2019.


Through funding provided by the U.S. DOT, we will award up to $1,000,000 to research projects that support NITC’s theme: improving mobility of people and goods to build strong communities. Our theme includes a few key topics:

  • Increasing access to opportunities
  • Improving multi-modal planning and shared use of infrastructure
  • Advancing innovation and smart cities
  • Developing data, models, and tools

2019 RESEARCH PRIORITIES

The NITC Advisory Board has provided input into several research priorities that relate to multimodal transportation data and the transportation-land use-housing connection. NITC is prioritizing the funding of proposals that directly addresses research questions related to:

Developing Data, Models and Tools. Agencies are confronting a plethora of new mobility options along with new data sources to support transportation research, planning, and analysis. Several priority research areas have been identified to increase understanding: 

  • Collection of multimodal data...
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