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...Read more
BIKE/PED COUNT SURVEY: CALL FOR INPUT
Researchers at Portland State University, University of Texas at Arlington, University of North Carolina at Chapel Hill and Toole Design Group are conducting a scan to identify locations where bicycle counts are taking place around North America, and hope to enlist your help! If you collect bike count data (or oversee counts) in your jurisdiction, please consider taking our quick survey to tell us a little bit about your count locations and data.
The survey can be accessed here: tinyurl.com/BikeCounterScan
THE NEW PROJECT...Read more
EDUCATION LIBRARY ARCHIVE
Missed the webinar or want a look back?
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...
The National Institute for Transportation and Communities (NITC) is soliciting proposals for our two 2018 Pooled Fund projects:
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...Read more
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....Read more
Portland State University students may now ride Portland’s iconic bright orange BIKETOWN bikes for free.
Thanks to a new agreement between PSU and BIKETOWN, Portland’s bike share program, current Portland State students may now ride any available BIKETOWN bike up to 90-minutes per day at no cost by signing up for a student membership online.
BIKETOWN is Portland’s city-owned bike share program, which provides 1,000 shared bikes at over 100 stations across downtown and several neighborhoods. The PSU campus is now considered a Super Hub Zone, which means that BIKETOWN bikes may be parked in any public bike rack on the PSU campus without penalty. Previously BIKETOWN bikes could only be parked and locked in BIKETOWN stations and other designated areas or riders would incur a $2 penalty.
“Portland State is already among the top five most bicycle-friendly colleges and universities in the nation,” said Clint Culpepper, PSU’s transportation options manager. “With eligible free BIKETOWN rides...Read more
Prepared by TREC, the Federal Transit Administration (FTA) has just released a Manual on Pedestrian and Bicycle Connections to Transit.
TREC Director Jennifer Dill and TREC researcher Nathan McNeil worked with the FTA to develop the manual, a guidebook to creating a robust network for active transportation and transit users.
From defining "access sheds" to linking up transit and bike share, the newly published manual is a rich resource for planners and engineers looking to boost their city's bicycle and pedestrian transit access.
Dill and McNeil built the manual with a special...Read more
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.
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...Read more
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-...Read more