A view of the ballroom with attendees eating lunch during the Summit keynote
Oct 09, 2019

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
Sep 26, 2019
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
Sep 11, 2019
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
Aug 15, 2019
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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NITC Webinar: Arterial Reliability Performance Metrics w Jason Anderson of Portland State
Aug 07, 2019

 

OVERVIEW

With worsening congestion, travel time reliability is increasingly becoming as critical as average travel times in affecting travel choices. Researchers from Portland State University (PSU) partnered with Washington County, Oregon to offer data-driven strategies in prioritizing funding for travel time reliability improvements on their urban arterials. The vast majority of existing research on travel time reliability has focused exclusively on freeways. Avinash Unnikrishnan, Sirisha Kothuri and Jason C. Anderson leveraged Bluetooth sensors provided and deployed by Bluemac Analytics to identify problem areas in the county. Set up at intersections throughout Washington County, the sensors are able to calculate travel time from one intersection to another by matching Bluetooth signals from devices in people's cars. The researchers evaluated the Bluetooth travel time data to understand the temporal variation in travel time reliability metrics on these urban arterials, including factors related to time of day, weather, and holidays. They also provided the County with an automated process to clean up their data and remove outliers.

The researchers determined that Tualatin-Sherwood Road has the lowest travel time reliability of the three corridors. Now that Tualatin-Sherwood Road has been identified as having the...

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Social Transportation Analytic Toolbox (STAT) for Transit Networks
Jul 31, 2019

 

PRESENTATION ARCHIVE

Miss the webinar or want a look back?

OVERVIEW

This webinar will present an open-source socio-transportation analytic toolbox (STAT) for public transit system planning. This webinar will consist of a demonstration of the STAT toolbox, for the primary purpose of getting feedback from transit agencies on the tool's usefulness. We are especially interested in hearing about any improvements that would aid transit agencies in implementing it.

The STAT toolbox was created in an effort to integrate social media and general transit feed specification (GTFS) data for transit agencies, to aid in evaluating and enhancing the performance of public transit systems. The toolbox enables the integration, analysis, and visualization of two major new open transportation data sources—social media and GTFS data—to support transit decision making. In this webinar, we will introduce how we...

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Jul 25, 2019
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, and funded in part by BBSP....

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A screenshot from the STAT tool shows a map with embedded Tweets by location
Jul 10, 2019
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
Jul 10, 2019
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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