A bicycle passes in front of a bus

Buses, Bikes, and Right-Turning Cars: Conflicts and Delays at the Transit Stop

posted on Thursday, October 24, 2019, 12:30pm PDT
Photo by Canetti
Miguel Figliozzi, Portland State University

When buses and bikes share space, it's complicated. Not only are there safety risks for cyclists, but also potential delays in bus service and stressful navigation for bus operators. The quest to increase bus speeds—and plausibly, ridership—pushes transit...

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Screenshot from the YouTube video showing Angie Schmitt at the podium

Over 120 active transportation professionals, researchers, students, and community members joined us October 15 on the Portland State University campus to hear journalist Angie Schmitt speak on the Pedestrian Safety Crisis. Miss the lecture, or want to share it with someone?

Angie may no longer be writing for StreetsBlog USA, but you can still follow her on Twitter or her freelance journalism for The Atlantic. She recently published her first Atlantic article on "Inequality is Slowing...

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A view of the ballroom with attendees eating lunch during the Summit keynote

The 11th annual Transportation and Communities Summit 2019, held at Portland State University (PSU) on September 19–20, drew attendees from 14 states across the U.S. Over 250 people joined us for the Summit day, and nearly 60 took part in the deep-dive workshop day. We hope the event offered new opportunities for collaboration and synergy between researchers, practitioners, and community members.

Peter DeFazio, the U.S. Representative for Oregon's 4th congressional district, kicked off the day with a video welcome message for the summit attendees, followed on the main stage by TREC director and urban planning faculty Jennifer Dill. 

At lunchtime Ben Wellington, the data storyteller behind the popular quantitative analysis blog...

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Bicyclists cross an intersection with a bike signal, near a red car
John MacArthur, Portland State University

What if your bicycle could warn you that a car is coming from a side street you can't see? Or let you know that your front tire is getting a little low, or that you're approaching a pothole that wasn't there yesterday? A NITC research project led by John MacArthur of Portland State University explores how connected vehicle (CV) technologies could encourage an increase in bicycling. As CV technology moves forward in the rest of the transportation system—with buses and connected streetcars requesting early green lights from the traffic signals, and cars chatting with each other about their locations and trajectories—there may be...

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Three people stand waiting for a train
Photo by santypan

Amy Lubitow and Julius McGee, Portland State University;  Raoul Liévanos, University of Oregon


What is the quality of travel data for underrepresented, marginalized populations? The issues go deeper than creating slicker algorithms: In a world with...

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A man with sunglasses and a cane carries a smartphone in his hand, appearing to be listening to its audio
Photo by diego_cervo
Martin Swobodzinski and Amy Parker, Portland State University

It's 2019, and with the explosion of mobile technology that has affected all other areas of life, it would seem to be a golden age for people living with visual impairments. Like never before in history, blind, deaf-blind, and low-vision individuals can access a plethora of mobile apps offering a range of services to aid in navigation and wayfinding. But the words "explosion" and "plethora" hint at an underlying problem: there are so many different apps, each one addressing only a segment of their mobility...

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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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