Portland State University

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Abstract: As part of Clark County Public Health’s Planning Active Walkable Neighborhoods project, a Health Impact Assessment (HIA) was conducted on the county’s Bicycle and Pedestrian Master Plan.  A rapid HIA was completed to provide input on the draft plan, and a subsequent comprehensive HIA was designed to evaluate the impacts of final proposals. This presentation will provide an overview of the process and results of the HIA, examine lessons learned, and discuss transferability to other jurisdictions or projects.

The video begins at 2:56.

Abstract: Genesis of America's First "Platinum Bike City", Davis CA

Before there was "Portland, Bike City USA" there was "Davis, Bicycle Capital of America."

Davis and Portland are very different places. Portland is big, old, industrial. Davis is small, new, nerdy. Portland has hills and rain. Davis is flat and dry. But they are both places where people bicycle. A lot. Ordinary folks come to these cities and often start riding a bike. Bicycling in Davis began in the 1950s, when it was a tiny city with the UC agricultural campus. As the city grew, citizens demanded bicycle infrastructure. After years of negotiation, city authorities gave in to pressure and instructed their staff to begin providing for bicycles. Everything had to be designed from the ground up. America had very little bike infrastructure, but that didn't stop Davis from trying dozens of different types of lanes, paths, intersection treatments, etc., and devising workable solutions. So workable, in fact, that they became the California standard, and then the American standard. As America was adopting Davis's designs, Davis continued to promote and accomodate bicycling on many levels, and in 1980 28% of the population commuted by bike.

Now, Davis and Portland are both rated "Platinum" cities for bicycling by the League of American Bicyclists. But they're still as different as night and day. Portland...

Summary: The most recent edition of the Highway Capacity Manual (HCM) contains analysis procedures for measuring the level-of-service (LOS), also referred to as quality of service, provided by an urban roadway to bicyclists. The method uses different design and operating features of the roadway segment (e.g. width, motor vehicle volumes and speeds) to assess an LOS grade of A (best) to F (worst). These procedures are used by planners and engineers to recommend how existing streets could be retrofitted or new streets designed to better serve people on bicycles (and other modes). However, the current HCM does not include methods that address protected bike lanes (aka “cycle tracks” or “separated bike lanes”), only conventional striped bike lanes, shoulders, and shared streets. There are other methods for predicting comfort from a bicyclist’s perspective that do consider protected bike lanes, but they are either based only on expert opinion or on surveys in Denmark.

This presentation will describe how to evaluate the level-of-service of a protected bike lane using results from surveys conducted in the United States. The model developed by this project could be used to supplement the current HCM to objectively consider a wider...

The video begins at 1:32.

Topic: Four Types of Cyclists: What do we know and how can it help?

Labeling or categorizing cyclists has been occurring for over a century for a variety of purposes. Dr. Dill's research aimed to examine a typology developed by the City of Portland that includes four categories: Strong and the Fearless, Enthused and Confident, Interested but Concerned, and No Way No How. Unlike several other typologies, this widely referenced typology is intended to apply to all adults, regardless of their current cycling behavior. This seminar will present her findings, focusing on differences between the four types and a better understanding the market for increasing cycling for transportation.