Trail Section Resurfaced Using Volcanic Ash in Oregon

Dec 06, 2022

In the latest instance of taking research to practice, researchers at Oregon Tech have completed a pilot section of trail using a NITC-developed sustainable paving method. A quarter-mile section of the Klamath Geo Trail, just east and up the hill from the Oregon Tech Klamath Falls campus, has been successfully resurfaced using volcanic ash from Mount Mazama. Learn more in a free webinar on February 23, 2023: Applying a Mt. Mazama Volcanic Ash Treatment as a Trail Accessibility Improvement.

The researchers explain and demonstrate the process in this NITC research video:

Applying a Mt. Mazama Volcanic Ash Treatment as a Trail Accessibility Improvement

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Washington D.C. Data Dashboard Comes to BikePed Portal

Nov 28, 2022

In a big step forward for nonmotorized planning, a dashboard with bike data from the Washington, D.C. metro area is coming to BikePed Portal. Previously, a planner looking to see the latest biking numbers for the nation's capital would have to look at info from several jurisdictions, including Arlington County, the City of Alexandria, the District Department of Transportation, Fairfax County, Montgomery County, and the National Park Service, which manages counters on several trails and natural areas in the greater metro area.

Now, with funding from a National Park Service (NPS) Cooperative Ecosystem Studies Unit (CESU), a unique program that facilitates partnerships between federal and non-federal entities and research institutions, Virginia Tech and the University of North Carolina Highway Safety Research Center (HSRC) are teaming up with data specialists at Portland State University (PSU) to create a new dashboard that will allow users to see all the D.C. bike data together in one place.

Housed at PSU's Transportation Research and Education Center (TREC), BikePed Portal...

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Navigating Urban Spaces: Indoor & Outdoor Wayfinding Technology for Vision-Impaired People

Nov 09, 2022

Navigating an unfamiliar place is uniquely challenging for people with disabilities. People with blindness, deafblindness, visual impairment or low vision, as well as those who use wheelchairs, can travel more independently in urban areas with the aid of effective wayfinding technology. A new report from the National Institute for Transportation and Communities (NITC) explores how to leverage low-cost methods to enable people to more easily move through public, urban indoor and outdoor spaces.

The study, led by Martin Swobodzinski and Amy Parker of Portland State University, used focus groups, two case studies, and an in-person structured wayfinding experience on the PSU campus to find the most helpful ways of getting around. Tactile maps were found to be a very useful resource, with an accessible mobile app also showing promise as an orientation and mobility aid.

The researcher will share more details about this project in a free webinar on December 15: Individual Wayfinding in the Context of Visual Impairment, Blindness, and Deafblindness.

WHY IS THIS RESEARCH IMPORTANT?

Environments and...

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Factors Influencing Bike Share Among Underserved Populations: Evidence From Three U.S. Cities

Oct 25, 2022

Researchers Jennifer Dill, Jiahui Ma, Nathan McNeil, Joseph Broach and John MacArthur of Portland State University have published a new article in the November 2022 issue of Transportation Part D: Transport and Environment. The open-access article, "Factors influencing bike share among underserved populations: Evidence from three U.S. cities," examines bike share use and interest among lower-income residents and people of color in New York, Chicago, and Philadelphia.

There is evidence that lower-income and people of color (POC) in the U.S. do not use bike share as much as higher-income and white people. Using data from residents living near bike share stations in New York, Chicago, and Philadelphia, the paper examines reasons for these disparities. Researchers looked at many factors that might explain bike share use and interest in lower-income, racially diverse, traditionally underserved neighborhoods. They focused on residents who live near bike share stations, so that proximity would not be a barrier.

A few key findings:

  1. People who are not members, but are interested in using bike share, including POC, are motivated to use bike share for fun, recreation, and social reasons (as opposed to utility).
  2. Knowledge of bike share and receiving information from interactive sources (for example,...
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University of Utah Researchers Partner with Utah Transit Authority in Areas of Persistent Poverty

Aug 31, 2022

Building upon a body of work on electric vehicle adoption funded by the National Institute for Transportation and Communities (NITC), a U.S DOT funded university transportation center, University of Utah researchers Xiaoyue Cathy Liu and Nikola Markovic will assist the Utah Transit Authority (UTA) in designing a dynamic service with zero-emission transit vehicles to enhance service equity and efficiency for a vulnerable population. Dr. Liu's earlier NITC work has helped transit agencies transition their fleets to battery electric buses, improving air quality with an eye toward environmental justice.

The UTA has received a new grant from the Federal Transit Administration (FTA) "Areas of Persistent Poverty" program, aimed at creating better transit for residents who have limited or no transportation options. Liu and Markovic are partnering with UTA to improve its paratransit service, which uses gas-powered vehicles and requires passengers to call 24 hours in advance. Working with Andy Hong in UU's Department of City...

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Using E-Bike Purchase Incentive Programs to Expand the Market – a new white paper from Portland State University

May 19, 2022

Would monetary incentives encourage more people to buy e-bikes? 

Portland State University (PSU) researchers are examining how purchase incentive programs can expand the current e-bike market, and the latest product to come out of this research is a white paper released earlier this month: “Using E-Bike Purchase Incentive Programs to Expand the Market – North American Trends and Recommended Practices (PDF)”

The paper offers methods of identifying the most effective program structure for the incentive provider's priorities, and helpful information on how to administer and track the program. 

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Launching the Wasatch Transportation Academy in Utah: A Community-Building Learning Model

Apr 15, 2022

How could a free transportation class for people living in the Salt Lake City region strengthen community conversations and advocacy around local priorities in transportation policy? Researchers at Portland State University (PSU) and University of Utah (UU) explored that question by bringing a well-known learning model from Portland, Oregon to SLC.

For over 25 years, the Portland Bureau of Transportation has partnered with PSU to offer the Portland Traffic and Transportation Course – a free 10-week course designed to provide local community members the skills and knowledge to participate in transportation decisions affecting their neighborhoods. This model has proven to be a success story in public agency-university partnership in community education. Building upon a 2015 project that documented the Portland course and developed a curriculum handbook, the National Institute for Transportation and Communities (NITC) has provided more funding for a pilot community transportation class–the Wasatch Transportation Academy– in Salt Lake, City Utah. Their first class was held on January 24, 2022 (view class recordings here) and ran through...

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Electric Vehicle Adoption for Public Transit: Research from the University of Utah

Mar 01, 2022

Dr. Xiaoyue Cathy Liu of the University of Utah is leading research efforts to help facilitate the widespread adoption of electric vehicles (EVs). In 2021, she completed a project funded by the National Institute for Transportation and Communities (NITC), Bi-objective Optimization for Battery Electric Bus Deployment Considering Cost and Environmental Equity, which was aimed at helping transit agencies transition their fleets to battery electric buses while focusing on improving air quality—with an eye toward environmental justice.

"The blocking piece is one of the more unique and helpful elements of this tool. We are making investments based on her recommendations, from the model and the tool, for five more high-powered chargers in our system.... You can optimize to a lot of different factors using her model. It's a really good tool in that you can use in multiple ways to make better business decisions for both your agency and the community."
-Manager of Systems Planning and Project Development, Utah Transit Authority

"This research made me aware of always communicating and addressing equity issues, even in small projects. I'm working on implementing small electric community shuttle systems and...

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How Affordable is Housing in Transit-Oriented Developments?

Feb 02, 2022

Transportation and land use planning, as a field, is shifting away from segregated uses connected by highways and streets to more compact, mixed-use developments connected by high-quality transit. This new paradigm has brought special attention to transit-oriented developments (TOD), which are sometimes touted as being among the most affordable, efficient places to live. But how affordable are they, and who has the power to effect change?

Is Transit-Oriented Development Affordable for Low and Moderate Income Households?, a study funded by the National Institute of Transportation and Communities (NITC), examines housing costs for households living in TODs. Led by Reid Ewing of the University of Utah, the team examined the housing affordability of TODs in U.S. cities across 23 regions. Register for a February 15 webinar to learn more about the project.

The analysis of housing costs revealed a lot of variability across different regions. Of all the examined housing developments, only 16 projects/developments out of 117 across 85 TOD sites were deemed 100% "affordable" – meaning that ...

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Webinar: Improving Recreational Trail Accessibility with a Volcanic Ash Treatment

PRESENTATION ARCHIVE

OVERVIEW

Recreational trails serve as valuable transportation corridors and support the health of users. Wheelchair accessibility of recreational trails depends on a variety of conditions, including slope, cross-slope, and surface characteristics. This project focused on improving the firmness and stability of a 0.2-mile section of trail that was otherwise accessible. The existing trail surface consisted of loose ¼” off-specification aggregate on native soil. A volcanic ash-Portland cement binder, studied in prior research, was batched, distributed, mixed, wetted, and compacted on site to improve the firmness and stability of the surface resulting in a smoother surface with less rolling resistance. The webinar will present details of the trail conditions, materials, batching, placement, and surface characteristics before and after treatment.

KEY LEARNING OUTCOMES

Attendees will be able to:

  • Describe and differentiate pozzolanic and cementitious...
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