Principal Investigators: John MacArthur, Portland State University; and Christopher Cherry, University of Tennessee

If more drivers switched seats to a bicycle, there would be immediate and tangible benefits on the road. Widespread adoption of bike commuting could improve public health through increased physical activity and reduced carbon emissions, as well as ease the burden on congested roads. However different lifestyle demands, physical ableness, and varied topography create an unequal playing field that prevents many from replacing their car trips.

Electric bicycles (e-bikes) are a relatively new mode of transportation that could bridge this gap. If substituted for car use, e-bikes could substantially improve efficiency in the transportation system while creating a more inclusive biking culture for people of all ages and abilities.

A newly published NITC study by John MacArthur of Portland State University's Transportation…

Livability encompasses several aspects of community, including safe, walkable neighborhoods; quality transit service and healthy green spaces. Making these types of benefits more available to underserved and marginalized populations is a key component of TREC's research focus. With the support of the Ann Niles Active Transportation Lecture Endowment, every year we host leaders who have made great strides in advocating for health, safety, and bicycle and pedestrian access.

For our 4th annual Ann Niles Lecture we've invited Tamika Butler – Executive Director of the Los Angeles Neighborhood Land Trust. In her current role she grows healthier, safer, and stronger communities through the creation of urban parks and community gardens—addressing the critical lack of green and recreational…

Evaluation of Electric Bike Use at Three Kaiser Permanente NW Employment Centers in Portland Metro Region
John MacArthur, Portland State University; Jennifer Dill, Portland State University

• Download the Final Report (PDF)
• View the Project Brief (PDF)

Despite efforts to get more people biking, North America still has low ridership numbers. The problem? Biking is hard.

A new report by John MacArthur of Portland State University's Transportation Research and Education Center (TREC), funded by the National Institute for Transportation and Communtiies, offers a solution to that problem: e-bikes. 

Many people surveyed say that having to pedal up hills and arriving at their destination sweaty are major deterrents to commuting by bike, even wh…

Vanessa Garrison, co-founder of national walking movement GirlTrek, gave the Ann Niles Active Transportation Lecture October 19 at Portland State University. Her simple, powerful message has mobilized more than 75,000 black women and girls since 2011 to start changing their lives and their communities for the better.

“Change starts with one woman,” she said. That is GirlTrek’s change theory: start with one woman, and there is a ripple effect.

Every time one woman is inspired by GirlTrek to commit to a daily habit of walking, so the theory goes, she can begin to motivate her friends, family or neighbors to walk with her and the movement gains another focal point around which to build momentum.

It's about health, but so much more.

In improving her own health, each GirlTrek walker gains the strength to effect other positive changes in her world.

With a group of women walking together every day, the neighborhood b…

Vanessa Garrison didn’t set out to build a health movement. Growing up in Seattle’s Central District, a historically black neighborhood, Garrison just wanted her household and her community to be healthy.

“It was a challenge for me to develop solutions that work for the women I love,” Garrison said.

Those solutions, however, did set off a movement: GirlTrek, a community-based walking movement that has reached 250,000 black women and girls across the country. Garrison co-founded GirlTrek and serves as its chief operating officer.

> Garrison will tell her story at the Ann Niles Active Transportation Lecture Oct. 19 at Portland State University. Reserve a space if you plan to attend.

“Seattle is one of the most active cities in the coun…