Webinar: Addressing Bicycle-Vehicle Conflicts with Alternate  Signal Control Strategies on Oct 16, 2018
Post date: Wed, 08/29/2018 - 12:20pm
Event Date:
Oct 16, 2018
Content Type: Events

EVENT OVERVIEW

There is nationwide interest in supporting sustainable and active transportation modes such as bicycling and walking due to the many benefits associated with them, including reduced congestion, lower emissions and improved health. Although the number of bicyclists is increasing, safety remains a top concern. In urban areas, a common crash type involving bicycles at intersections is the “right hook” where a right-turning vehicle collides with a through bicyclist. While geometric treatments and pavement markings have been studied, there is a lack of research on signal timing treatments to address right-hook bicycle-vehicle conflicts.

Addressing Bicycle-Vehicle Conflicts with Alternate Signal Control Strategies, published in April 2018, is the first study to explore bicycle signal control strategies for addressing bicycle-vehicle conflicts. This study analyzed the operational impacts of traditional concurrent phasing, leading bike intervals (LBI), split leading bike intervals, and exclusive bike phasing in a microsimulation environment, and explored the safety impacts of traditional concurrent phasing, leading bike intervals, split leading bike intervals, and mixing zones using video-based conflict analysis. The microsimulation analysis revealed increased delays due to LBI, split LBI...

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Left: Bicycles on a trail; Right: Young woman buying transit pass
Post date: Thu, 08/23/2018 - 11:31am
Event Date:
Content Type: News Item

The National Institute for Transportation and Communities (NITC) is soliciting proposals for our two 2018 Pooled Fund projects:

RFP now open; proposals due Oct 1, 2018

This project will address the need of cities and municipalities to combine bicycle data from different sources (such as manual counts, automatic counts, and crowd-sourced data from apps such as Strava) to assess an accurate accounting of bicycle traffic on a network. Current work on data fusion techniques is limited and additional research is needed to fully understand the choice of weighting techniques, inclusion of spatial vs. temporal variation in the weighting scheme and exploring other...

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A bicyclists rides down a neighborhood greenway
Post date: Thu, 08/23/2018 - 10:30am
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Content Type: News Item
Principal Investigator: Jenny Liu, Portland State University
Learn more about this research by viewing the Executive Summary and the full Final Report, or watching the January 2018 seminar on the Project Overview page.

Portland, Oregon's 2035 Comprehensive Plan calls for “City Greenways” - a citywide network of park-like streets focused on moving pedestrians and bicycles safely. Such a connected network of safe, welcoming active transportation options could have significant benefits for residents—but which residents?

Benefits of bike and pedestrian infrastructure include environmentally sustainable transportation, livability, and improvements in economic development and public health. While these outcomes are well documented, it is also known that both transportation and environmental amenities are typically unevenly distributed in the urban context....

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Post date: Wed, 10/18/2017 - 2:53pm
Event Date:
Dec 12, 2017
Content Type: Events

RECAP: WEBINAR VIDEO + SLIDES

Missed the presentation or want a look back at the slides? Check out the video below or view the presentation slides here.

Webinar: Case Studies in the FTA "Manual on Pedestrian and Bicycle Connections to Transit"

This webinar was co-hosted by the Transportation Research and Education Center (TREC)...

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Post date: Tue, 10/10/2017 - 2:03pm
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Content Type: News Item
Principal InvestigatorIvis Garcia, University of Utah
Learn more about this research by viewing the related presentations and the full Final Report on the Project Overview page.

Students in the University of Utah’s Westside Studio investigated how to improve access to downtown from the west side of Salt Lake City.

Led by Ivis Garcia, the project's goal was to learn from residents about their use of an existing multi-use path, the Jordan Park River Trail, and to help enhance the connection between residents living near the trail and the downtown area on the river's east side.

Students surveyed 300 residents and conducted focus groups, which revealed that many area residents either didn't know about the trail or didn't perceive it as a safe place to walk. Local community leaders also visited the class and shared their expertise with students.

"A lot of elements of the course were around teaching community engagement and action," Garcia said.

In order to enhance users'...

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Post date: Tue, 06/20/2017 - 3:42pm
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Content Type: News Item

Psychology teaches us that implicit biases—attitudes we hold on a level below consciousness, and may not even be aware of—can have a heavy influence on split-second decisions.

In a fast-paced activity like driving, with a lot of moving parts in a complex environment, we make those snap decisions all the time. There are obvious safety implications to this, particularly for the most vulnerable road users. That’s why TREC researchers are becoming more and more interested in studying implicit bias and social psychology as it relates to transportation behavior.

The latest report from the NITC program, Exploring Drivers’ Attitudes and Behaviors toward Bicyclists: The Effect of Explicit and Implicit Attitudes on Self-Reported Safety Behaviors, is a dissertation by NITC fellow Tara Goddard.

With a focus on driver-cyclist interactions, Goddard dives into the social psychology of roadway interactions and comes up with some interesting takeaways for practitioners and researchers. Before moving to Portland in 2011 to begin her Ph.D., Goddard was the bicycle/pedestrian coordinator for the City of Davis, California, and says that it’s important to understand the mechanisms at...

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Post date: Wed, 06/07/2017 - 3:45pm
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Content Type: News Item

While it’s generally accepted that dense, mixed-use development promotes active travel, researchers don’t have a consensus on exactly how, and to what degree, land use determines people’s travel patterns.

NITC’s latest report, Active Travel Behavior and Spatial-Temporal Land Use Mixing, provides some clarity on the topic.

NITC fellow Steven Gehrke focused his dissertation research on transportation-land use interaction, and sees land use mix as a multidimensional construct.

“We can refocus—away from increasing density—and think more about how we configure land uses,” Gehrke said.

According to Gehrke’s research, more density does not necessarily equal more walking. Rather, the complementarity, composition, and configuration of land use types is essential for cultivating walkability.

Gehrke, who graduates this spring with a Ph.D. in civil and environmental engineering from Portland State University, conducted three empirical studies under his dissertation grant. The first focused on improving measurements of land use mix, introducing a land use mix measurement of the composition and configuration of local land use types.

The second study looked at other smart growth principles, like employment concentration and pedestrian-...

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Post date: Fri, 06/02/2017 - 12:09pm
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Content Type: News Item

May was national bike month, sponsored by the League of American Bicyclists and celebrated in communities from coast to coast.

The NITC-supported ITE student chapter at the Oregon Institute of Technology helped to organize a "Bike, Walk or Run to Work" day on Friday, May 19.

Klamath County Public Health and the Blue Zones Project partnered to bring Bike to Work events to five locations around the town of Klamath Falls, Oregon, the home of Oregon Tech. 

Community members were invited to bike, walk, or run to work on May 19 and stop in at Gathering Grounds Roastery, Sky Lakes Medical Center, Mia & Pia's Pizzeria & Brewhouse, 173rd Fighter Wing, Kingsley Field, or Klamath Community College for free breakfast and refreshments.

There was also a raffle, with prize drawings at 5:.30 p.m. at Gaucho Collective.

The more participants actively commuted to work throughout the week, the more chances they had to win prizes.

Oregon Tech's ITE Student Chapter member staffed four breakfast stations across the Klamath Basin to encourage community members to consider healthier forms of transportation for their commutes.

By bringing residents, worksites, schools, restaurants, grocery stores, and government together, Blue Zones and Oregon Tech hope to inspire a community movement to improve quality of life for everyone. Bike to Work day was an indicator of that growing...

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Post date: Mon, 05/29/2017 - 2:31pm
Event Date:
Content Type: News Item
Principal Investigator: Nathan McNeil
Learn more about this research by viewing the Summary Report, related publications and the full Final Report on the Project Overview page.

While bike-sharing systems become increasingly common in American cities, questions about the equity of such systems are making their way to the forefront of the conversation.

Bike share can provide a cheap and healthy means of transportation, but many systems are not serving the lower-income and minority populations who, arguably, could benefit most from having the additional travel option.

A survey of 56 bike share system operators in the United States offers an overview of how these equity concerns are being addressed.

The survey is part of a larger research effort, Evaluating Efforts to Improve the Equity of Bike Share Systems. To gain an understanding of the challenges and opportunities involved in providing more equitable bike share, TREC and NITC teamed up with the Better Bike Share Partnership: a collaboration between PeopleForBikes, the National Association of City Transportation Officials (NACTO), the...

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Post date: Thu, 05/18/2017 - 2:22pm
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Content Type: News Item

Everyday cycling for transportation can have positive, population-level health impacts. Significant deterrents to cycling remain, however, particularly for women and minorities.

Narratives of Marginalized Cyclists, a NITC project conducted by Amy Lubitow of Portland State University, explores the experiences of women and minorities biking in Portland, Oregon.

Lubitow interviewed 28 Portlanders who self-identified as a woman or as a racial/ethnic minority (or both), and based on the insights gained from their stories, came up with a set of recommended interventions for planners to mitigate the barriers they experience.

"Institutionalized racism and sexism is hard to fix. These are complicated issues that involve multiple levels of interventions, but at a basic sort of smaller scale, there are things we can do," Lubitow said.

She chose participants who own a bike and ride it at least once a month, but not more than once a week. The primary aim of the project was to collect rich, narrative data regarding obstacles to routine or utilitarian cycling for women and minorities who already see biking as a viable form of transportation, but who make relatively few bike trips.

The interviews yielded a...

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