portland state university | Transportation Research and Education Center

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...

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...

Pedestrian Crossings, Bicycling and Transit Stop Removal: 3 Transportation Research Board annual meeting student presentations

The video begins at 1:20.

View slides: Foster Presentation (PDF)

View slides: Muhs Presentation (PDF)

View slides: Wagner Presentation (PDF)

Summaries:

Evaluating Driver and Pedestrian Behaviors at Enhanced Multilane Midblock Pedestrian Crossings: Case Study in Portland, Oregon This study examines driver and pedestrian behaviors at two enhanced midblock pedestrian crossings in Portland, Oregon. One crossing is on a five-lane arterial with a posted speed of 35/45 miles-per-hour (MPH) and features six rectangular rapid flash beacon (RRFB) assemblies and a narrow median refuge. The other crossing is on a suburban arterial with four travel lanes and a two-way left-turn lane. The crossing is enhanced with four RRFB assemblies and a median island with a “Z” crossing, or Danish offset, designed to encourage pedestrians to face oncoming traffic before completing the second stage of their crossing. Approximately 62 hours of video have been collected at the two locations. A total of 351 pedestrian crossings are analyzed for driver compliance (yielding) rates, pedestrian...

Transit-Oriented Development: Findings from Recent Research

View slides from Jennifer Dill's presentation

The video begins at 6:57.

NITC Webinar: Arterial Reliability Performance Metrics w Jason Anderson of Portland State

Webinar: Evaluating Urban Arterial Reliability Performance Metrics

PRESENTATION ARCHIVE

Miss the webinar or want a look back?

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....

Webinar: Scooting to Healthy and Safe Mode Choices

PRESENTATION ARCHIVE

OVERVIEW

Shared electric scooters (e-scooters) are fast becoming a mobility option in cities across the United States. This new micromobility mode has the potential to replace car usage for certain trips, which stands to have a positive impact on public health and sustainability goals. However, many aspects of this emerging mode are not well understood.This webinar explores the findings of three NITC studies examining transportation mode choices, safety, and public health outcomes of electric scooters.

KEY LEARNING OUTCOMES

By the end of this presentation, the participant will be able to:

describe the ways in which electric scooters may provide new substitutive, complimentary or synergist transportation opportunities for different activities...

Transportation Data Education: Intro to R

Join us for a three day introductory in-person workshop on R

September 10–12, 9:30am - 4:30pm

Tired of finding errors in your spreadsheets that perpetuate and cascade through your work? Still trying to cram “big” data into tiny worksheets? Wish you had an easier way to easily share data and results with others? Want to better manage and maintain your workflow? Always wanted to learn R and version control but never found the time? If any of your answers are yes, then this course is for you!

After several years of hiatus, we are excited to host an "Intro to R" workshop where we will cover the following:

Coding and scripting basics
Intro to data wrangling and visualizations
Version control & best practices
Where to go for help and how to expand your skills

Prerequisites for the Workshop

Basic knowledge and experience working with quantitative data; experience and skills in a different programming language or data processing and statistical software is helpful but not required.

Course Requirements

Please bring your own laptop and have the following software installed prior to the workshop. If you are using a work machine, please make sure you have reached out to your IT department to have these programs installed:

TRB Highlights: 3 PSU Student Presentations

Watch video

View slides: Bell Presentation (PDF)

Moore Presentation (PDF)

Ma Presentation (PDF)

Summaries:
Identification and Characterization of PM2.5 and VOC Hot Spots on Arterial Corridor by Integrating Probe Vehicle, Traffic, and Land Use Data: The purpose of this study is to explore the use of integrated probe vehicle, traffic and land use data to identify and characterize fine particulate matter (PM2.5) and volatile organic compound (VOC) hot spot locations on urban arterial corridors. An emission hot spot is defined as a fixed location along a corridor in which the mean pollutant concentrations are consistently above the 85th percentile of pollutant concentrations when considering all other locations along the corridor during the same time period. In order to collect data for this study, an electric vehicle was equipped with instruments designed to measure PM2.5 and VOC concentrations. Second-by-second measurements were performed for each pollutant from both the right and left sides of the vehicle. Detailed meteorological, traffic and land use data is also...