Friday Seminar at PSU on Oct 26th: Driver Comprehension of Permissive Right-Turns with a Flashing Yellow Arrow (FYA) (Chris Monsere and Dave Hurwitz)

Friday Transportation Seminar: Driver Comprehension of Permissive Right-Turns with a Flashing Yellow Arrow (FYA)

Friday Transportation Seminars at Portland State University have been a tradition since 2000. With over 450 seminars presented and recorded (access the archive of seminars here), we host both visiting and local scholars to share the latest in research, technology, and implementation in transportation.

PRESENTATION ARCHIVE

Miss the seminar or want a look back?

EVENT OVERVIEW

This research explored driver comprehension and behaviors with respect to right-turn signal displays with a focus on the Flashing Yellow Arrow (FYA) in a driving simulator and a comprehension survey. Flashing yellow arrows are used in place of other turn signals, such as solid green or flashing yellow or red circles, to indicate that drivers may turn after yielding to oncoming traffic. These turns are considered “permissive.” Turns where no conflicting traffic is present, such as those indicated with a green arrow, are “protected” turns. The flashing yellow arrow’s inclusion in the...

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Webinar: Eliminating Cash Options for Public Transit Fares: Costs, Benefits and Equity Impacts

PRESENTATION ARCHIVE

OVERVIEW

Many transit agencies plan to automate their fare collection and limit the use of cash, with the goals of improving boarding and data collection while lowering operating costs. Yet about 10% of adults in the United States lack a bank account or credit card, and many either rely on restrictive cell-phone data plans or don’t have access to internet or a smartphone. 

This webinar will present part of a larger research project exploring these issues in the cities of Denver, Colorado, and Eugene and Portland–Gresham, Oregon. In this part, we explore the tradeoffs between reducing cash acceptance, ridership and the costs of fare collection systems. How much does it save to reduce cash acceptance, verses ridership and equity impacts?

We will also present a cost-effectiveness framework that combines a qualitative and quantitative analysis and use this model to explore case scenarios in our three cities. The model shows that adding a retail network to...

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Initial Assessment of Portland's Green Bike Boxes

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The video begins at 3:10.

Social Transportation Analytic Toolbox (STAT) for Transit Networks

Webinar: Social Transportation Analytic Toolbox (STAT) for Transit Networks

 

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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Bicycling Toward Equity: Opportunities, Barriers & Policies for Vulnerable Groups

Friday Transportation Seminar: Bicycling Toward Equity: Opportunities, Barriers, and Policies for Vulnerable Groups

Friday Transportation Seminars at Portland State University have been a tradition since 2000. You can join us in person at 11:30 AM, or you can also watch online.

PRESENTATION ARCHIVE

THE TOPIC

This seminar will include two papers that will be presented earlier in the week at the Annual Meeting of the Transportation Research Board in Washington, DC. 

Adaptive Bikeshare: Expanding Bikeshare to People with Disabilities and Older Adults

John MacArthur, Portland State University
Nathan McNeil, Portland State University

Bike share systems are expanding efforts to be more equitable and accessible...

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Friday Transportation Seminar: Student Presentations from TRB, Week 2

*NEW* LOCATION: Karl Miller Center at PSU, 631 SW Harrison St., Room 465
*NEW* REGISTRATION: Sign up through GoToWebinar

Portland State University students will share the work they presented at the annual meeting of the Transportation Research Board (TRB) 2018:

SEMINAR VIDEO

Friday Transportation Seminar: Student Presentations from TRB, Week 2

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Research Into Comics Workshop

Got research? Like comics? Learn how to bring the two together in this hands-on workshop.

Open to students and faculty at Portland State University, this workshop will provide an introduction to comics as a means to communicate research. Come prepared to learn about the power of comics as a communication and learning tool, some recent examples of research comics from PSU, and the comic studies program.

No previous experience in comics is necessary. Space is limited so register now!

This event is sponsored by the National Institute for Transportation and Communities (NITC), Research and Graduate Studies, and Comics Studies at PSU.

Learn more about the NITC project Communicating Research through Comics: Transportation and Land Development.

Portland State University's Transportation Research and Education Center (TREC) is home to the U.S. DOT funded National Institute for Transportation and Communities (NITC), the Initiative for Bicycle and Pedestrian Innovation (IBPI), PORTAL, BikePed Portal and other transportation grants and programs. We produce impactful research and tools for transportation decision makers, expand the diversity and capacity of the workforce, and engage students and professionals through education and participation in research.

The Future of Transportation in Downtown Portland: Inspirations from the 1972 Downtown Plan

Join us Monday, October 24, as TREC director Jennifer Dill moderates a panel on the Future of Transportation in Downtown Portland. Register to attend in person (space is limited), or join online via Zoom.

Moderator: Jennifer Dill, Professor, Toulan School of Urban Studies & Planning and Director of PSU’s Transportation Research and Education Center (TREC)

Panelists:
Gabriel Graff, Central City Capital Program Manager, Portland Bureau of Transportation
Cathy Tuttle, Board Member, BikeLoud PDX
André Lightsey-Walker, Policy Transformation Manager, The Street Trust
​​Mark Raggett, Associate Principal, GBD Architects and Director of Planning and Design, Friends of Green Loop

The year 2022 marked the 50th anniversary of the City of Portland's 1972 Downtown Plan, one of the most consequential plans in the city's history. It put in place a vision for a public, pedestrian-scaled, multipurpose, and vital downtown. Through the requirements adopted in the Downtown Plan and subsequent...

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Walking and Biking on their Own: Modeling Children's Independent Travel to Neighborhood Parks and Schools

The video begins at 1:47.

Joseph Broach, PhD candidate in Urban Studies, will discuss the results of his research, which models the propensity of children aged 6-16 to walk or bike to parks and school without an adult chaperone, extending existing work on children’s active travel in several ways: 1) focus on travel without an adult, 2) inclusion of school and a non-school destinations, 3) separate walk and bike models, 4) consideration of both parent and child attitudes and perceived social norms, 5) explicit inclusion of household rules limiting walking or bicycling.

The Effects of Data Aggregation on Measuring Arterial Performance

The proliferation of information technology in the transportation field has opened up opportunities for communication and analysis of the performance of transportation facilities. The Highway Capacity Manual relies on rules of thumb and small data samples to generate levels of service to assess performance, but modern detection technology gives us the opportunity to better capture the dynamism of these systems and examine their performance from many perspectives. Travelers, operations staff, and researchers can benefit from measurements that provide information such as travel time, effectiveness of signal coordination, and traffic density. In particular, inductive loop detectors show promise as a tool to collect the data necessary to generate such information. But while their use for this purpose on restricted‐access facilities is well understood, a great many challenges remain in using loop detectors to measure the performance of surface streets.

This thesis proposes 6 methods for estimating arterial travel time. Estimates are compared to simulated data visually, with input/output diagrams; and statistically, with travel times. Methods for estimating travel time are applied to aggregated data and to varying detector densities and evaluated as above. Conclusions are drawn about which method provides the best estimates, what levels of data aggregation can still provide useful information, and what the effects of detector density are on the quality of estimates....

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