Event Date:
May 16, 2008
Content Type: Professional Development Event

This seminar will present results from the BikeGPS study that collected data from Portland area bicyclists using GPS technology. The study collected data from over 150 cyclists for seven days each during 2007, resulting in detailed information for over 1,500 bicycle trips throughout the urban area. The GPS data provides detailed information on the amount, location, and speed of bicycle travel and allows us to answer questions about route choice. For example, how much to people ride on roads with bike lanes, on bike boulevards, or paths? Do these patterns vary by gender, age, or other factors?

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The video begins at 7:24.

Event Date:
Oct 24, 2008
Content Type: Professional Development Event

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....

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Event Date:
Nov 21, 2008
Content Type: Professional Development Event

The founders and board members of IBPI talk about lessons learned from the world's best large cycling cities.

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The video begins at 2:54.

Event Date:
May 27, 2009
Content Type: Professional Development Event

Room 315 Engineering Building (ITS Lab)

If American cities are to serve the mainstream population of traffic-intolerant bicyclists, we need a broad range of low-stress facility types that can be applied depending on traffic and space constraints. This seminar will focus on two kinds of bicycle accommodations. A “Bicycle Priority Lane” is a shared lane treatment, like the shared lane arrow or “sharrow” that is becoming popular, intended for streets lacking the space to provide a dedicated bike lane. It enhances the sharrow by providing longitudinal markings that define a “lane within a lane,” drawing from “advisory lanes” (UK) and “suggestion lanes” (NL). We show how defining the bicyclist’s space objectively with road marking frees bicyclists from the stress of negotiating for operating space with motorists.

Separated paths or cycle tracks are bike paths along a road that are physically separated from moving traffic by a curb, median, or parking lane. For decades, they have been the mainstay of bicycle networks in the Netherlands and in Montreal, but have been shunned by US planners due to misplaced safety concerns. We will expose the flaws of the studies used to discredit separated paths, and discuss their safety record in the Netherlands and in Montreal. Practical issues in cycle track design will be discussed based on Montreal’s experience of the last two decades.

Event Date:
Jun 05, 2009
Content Type: Professional Development Event

The video begins at 4:14.

Event Date:
Jun 15, 2009
Content Type: Professional Development Event

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The LCN+ Project Management team are responsible for improving conditions for cycling on a 900-kilometre network of London’s key commuter roads, in line with the Mayor of London’s Cycling Action Plan.

With the initial target of achieving a 200% increase in the number of cyclists in London already surpassed, the project aims to build on this by continuing to advise the 33 London boroughs on how to improve cycling infrastructure on their roads. By effectively liasing with major stakeholders such as local cycling groups, Borough Cycling Officers and Transport for London, the project can ensure that all will have agreed on the solutions reached.

Steve Cardno: Steve is the Project Manager for the London Cycle Network Plus (LCN+) project, with responsibility for the overall project management of this London wide cycling project. The LCN+ project aims to deliver 900km of high quality strategic cycle routes across London by the end of 2009/10. The project is funded by Transport for London (TfL), project managed by Camden Consultancy Services and delivered in partnership with TfL, CCS, the 33 London Boroughs and...

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Event Date:
Dec 04, 2009
Content Type: Professional Development Event

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The video begins at 3:10.

Event Date:
May 28, 2010
Content Type: Professional Development Event

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Abstract: Existing regional travel forecasting systems are not typically set up to forecast usage of bicycle infrastructure and are insensitive to bicyclists' route preferences in general. We collected revealed preference, GPS data on 162 bicyclists over the course of several days and coded the resulting trips to a highly detailed bicycle network model. We then use these data to estimate bicyclist route choice models. As part of this research, we developed a sophisticated choice set generation algorithm based on multiple permutations of labeled path attributes, which seems to out-perform comparable implementations of other route choice set generation algorithms. The model was formulated as a Path-Size Logit model to account for overlapping route alternatives. The estimation results show compelling intuitive elasticities for route choice attributes, including the effects of distance and delay; avoiding high-volumes of vehicular traffic, stops and turns, and elevation gain; and preferences for certain bike infrastructure types, particularly at bridge crossings and off-street paths. Estimation results also support segmentation by commute versus non-commute trip types, but are less clear when it comes to gender. The final model will be implemented as part of the regional travel forecasting system for Portland, Oregon, U.S.A.
Event Date:
Aug 25, 2010
Content Type: Professional Development Event

The video begins at 0:43.

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