My post, Cycling Safety Feedback Loop is up at streets.mn…
“Assuming cyclists have “safety in numbers,” the real question I posed in my last post is how can St. Paul or Minneapolis (or Anyplace, Minnesota) get more people on bikes?
My post: Would you spur swimmers to the beaches of Amity Island? is up at streets.mn…
“Jaws, the blockbuster thriller film from the mid 1970’s was the highest grossing film ever until Star Wars was released two years later. The mechanical shark, the beach scenes on Amity Island, and the music score brought it all together. The dynamic between the obdurate mayor (Richard Vaughn) and the police chief (Martin Brody) largely revolved around a tension about how to address an activity that, in the public’s eye, has safety risks. Thirty years later, it’s a tension we wrestle with in bicycle planning.”
This past weekend I was at the US-EU Frontiers of Engineering Workshop in Paris. The National Academies of Engineering asked me to co-chair the session on “The Future of Transportation.” Three researchers who are well known in the U.S. dazzled the collection of 50+ other engineers who represented other engineering fields.
Why Traffic Management Works…And Why Coordinated Traffic Management will Work Even Better – Serge Hoogendoorn, Technical University Delft, The Netherlands
Nash-Stackelberg Games in Transportation Networks: Leveraging the Power of Smartphones for Traffic Monitoring and Management - Alexandre Bayen, University of California, Berkeley
Impacts of the Sharing Economy in Transportation - Kari Edison Watkins, Georgia Institute of Technology
Here are two observations based on the session:
1. The last speaker, Prof. Watkins, offered several perspectives in the her presentation that got most of the Q & A session talking about issues of how to harness car travel; there was even a focused discussion about the role of cycling in all of this. Yes, some of the world’s brightest engineers were talking specifically about spurring more cycling as part of our transportation system for almost 15 minutes (really, I had little to do with this).
2. A key element of Watkins’ presentation stressed elements of the “shared economy” and implications for transportation—in terms of sharing space and information.
For us transport folks, there are seemingly endless implications of the shared economy. One framework might be to approach this by thinking about different elements of non-auto using behavior vis-à-vis different considerations that are important for adoption.
Different elements of transportation and transportation information, of course, include: Transit information (e.g., when is the next bus), Bike and Car sharing (e.g., where are the stations), Cycle tracks (e.g., how do people use the network), Ride sharing or slugging (e.g., sharing space in a conventional car), Destination knowledge (e.g., where is the closest pizza)…the list can go on.
Considerations that are important for adoption would include:
-Are there general safety fears of the transport device being used (e.g., am I using someone else’s car whose brakes don’t work)?
-Are there specific safety and security fears with procuring access to the transport device (i.e., do I have to meet someone I don’t know to get a hold of the device)?
-Are you concurrently sharing a physical space with another person (e.g., sitting shotgun in their car)?
-How much reliability of the trip is needed (e.g., you absolutely need to get there now)?
-To what degree can the information exchange be public, done via open wiki or otherwise open source?
-To what degree would my anxiety about sharing space (e.g., a spot in their car) be overcome via forms of social media (e.g., leveraging facebook and 6 degrees of separation.
…the list can also go on.
The main point: to successfully leverage all the different forms of the shared economy for transportation, different forms of transport information have different criteria to “make it work.”
Some bike paths serve as semi-icons for their city. The Creek Path in Boulder, Colorado (US) ranks up there with the Seattle’s Burke Gilman Trail and the Chain of Lakes network in Minneapolis (both US). But the origin of the path’s construction had some rough beginnings.
A bit of history: The area around the path was originally called for in Boulder’s Creek Corridor plan (1984), which stipulated the use of the creek corridor as a linear, topographically sensitive park. This park would incorporate riparian zones and wetland sensitive elements. The creek comprised one of the primary watersheds for the city and a few years later, the city purchased adjoining land to the creek for a wetland and greenway program. This led to further integration of habitat restoration and water quality augmentation elements into the use of once forlorn features of Boulder’s ecological fabric. But over time, community-wide momentum was building for how the area could also enhance flood mitigation efforts together with more “mainstream modes” of transportation such as walking and cycling (in addition to kayaking).
Rather than scour for the pennies that were available at the time to build bicycle facilities, the city tapped into federal grants for flood control and environmental remediation; these coffers were three to four times larger. The city creatively parlayed bike trails into this process. The flood mitigation efforts were considered to have largely passed the extreme test that the city experienced owing to biblical floods in September of 2013.
But the specific planning of the bike portion of the Boulder Creek Path was somewhat of a separate issue. And, Gary Lacy, a recreation planner for the city at the time, approached it with vengeance. He focused on ensuring it got built—not planned for—but built. Lacy considered formal permits a nuisance; conscientious and collaborative plan-making was too time consuming. He relied on a “Robert Moses-esque” philosophy and sometimes took a page out of Chicago Mayor Daley’s planning playbook. Rather than abide by city protocol, he went solo and blazed sections of the trail by moonlight. He took to the backhoe to move obstinate boulders along the way. Where the earth would not move, he built the path around it.
Lacy’s semi-barbarian approach to make the path is etched into local folklore. And the path itself would have made the hair stand up on the neck of the authors who penned the 4th edition Guide for the Development of Bicycle Facilities by the American Association for State and Highway Transportation Officials (AASHTO),. Sight lines are jeopardized, travel lanes were inconsistently wide, and some right-angled turns (frowned on in bike path planning) continue to be sprinkled throughout. Friends in town claim the trail is hazardous and a downright safety hazard. But the path got built—the city has since smoothed out some of the path’s rough edges—and it now serves as a beacon for the city and a seminal spine for the rest of the its cycling network.
The development of Boulder’s Creek Path represents a planning story where the perfect was not the enemy of the good. Things got done, despite not being perfect. There were some issues along the way—some of them safety oriented, others process oriented. But its evolution begs the question in the world of bicycle planning, when is a facility “good enough.”
Similarly, the “so-called” bicycle facility outside my home in Bologna (Italy) is a meandering stripe that bobs and weaves, literally at right angles between newsstands and trees. It sometimes pinches the rider down to mere inches. I presume it was laid by an Italian public works employee after too much grappa. But do these sketchy attributes warrant it as a non-useful facility? Is providing substandard bicycle facilities worse than none at all?
The dilemma reminds me of a scene in Cher’s 1987 Academy award winning film, Moonstruck (the movie, likewise shares Italian origins). The father, Cosmo Castorini, is a plumber who is explaining to a client in his deep Italian accent his philosophy of preferred plumbing materials.
“There are three kinds of pipe. There’s what you have [aluminum], which is garbage – and you can see where that’s gotten you. There’s bronze, which is pretty good, unless something goes wrong. And something always goes wrong. Then, there’s copper, which is the only pipe I use. It costs money. It costs money because it saves money.
Did Cosmo have it right? Are there problems in the bike planning world that stem from constructing the equivalent of ‘aluminum’ or ‘bronze’ facilities?
The biggest risk of substandard facilities are the unmet expectations that they create. Cyclists, seeing signs, markings or other might are comforted into letting down their safety guard, for example. There is subsequent confusion about the role, rights, and responsibilities in the transportation hierarchy. Cyclists are all too familiar with the bike lane painted within mere inches of the impending car door opening. Or the bike facility that, in a pinch, mixes you with pedestrians and then switches the side on which bikes are supposed to ride. Then there is the blissful cycling corridor that abruptly dumps you into four lanes of auto traffic. In my own research, I found that users particularly struggle with these later situations when facilities end at bigger intersections, locations with on-street parking, and locations with relatively narrow travel lanes.
With most transportation networks being surface oriented, mainly along streets and primarily occupied by cars, it is useful to have prescriptions, guidelines, and even sometimes standards to guard against these situations. In an ideal world, a planner would take stock of the context, consult the guidelines, prepare the design, and execute. If only it were that easy. History gets in the way. Cultural peculiarities get way. Nature gets in the way.
There are many cities—almost all of them in industrialized countries—who are moving toward this consistent model. If you ask Dutch cycle planners, they immediately pull off the shelf their tattered Design Manual for Bicycle Traffic. They leaf to dog-eared section 4.4.2 where they point to a figure with two axes—how many cars are along a particular route (e.g., traffic volume) and the speed of those cars. Five different types of suggested facilities are depicted based on these two factors alone. Adhering to some core principles put forth by the prototype model is gaining steam in the US and cycling treatments are approached with increasing method and consistency.
At the other end of the spectrum lie cases where bicycling treatments are less than satisfactorily completed. That might be an overstatement. They are downright dangerous. These might consist of the cavalier bike path that was laid through a stretch of road—lacking attention to its connecting points—to enable a politician could deliver on a promise to a constituency. It might be the case where road engineers are blindly following a city’s guidelines; they might measure three feet from a street curb’s edge, lay a stripe, and call it a day regardless of the context. It might be the proverbial case where a bike facility passes over a storm sewer with drainage slots that miraculously measure the same width as a bicycle tire. No self-respecting transportation professional would endorse these outcomes. They present unexpected conditions, safety hazards, and problematic signals to both cyclists and car drivers.
In the broad spectrum of bicycle facility planning contexts, there are environments that are shy of falling into the above category. But, they don’t lend themselves to rigid standards (or expectations) offered in guidebooks. Try finding room for a bike path in the historic center of any city that was inhabited by the Romans. The typical right-of-way might be three meters wide and shared between five or more different modes each traveling in two different directions. While most situations are not this stark, the bulk of planning contexts—especially in historic cities across the globe—are in situations where the bike planner is dolled a bunch lemons. Cosmo might have had it wrong. Realizing that not everywhere in a city can be built with ‘copper pipe’ cycling conditions, bike planners must make due and prescribe treatments that are far from perfect. They must make lemonade, even thought it carries some risks.
Otherwise, what are their options? They could sharpen their pencils designing the perfect intersection which might come to fruition once the political will arrives. Alternatively, they could do nothing.
Making lemonade means that formal standards might be abandoned. Cyclists need to adjust their expectations. Car drivers need to acclimate. Life goes on. Bike facilities need to start somewhere. They need to be granted freedom to experiment without backlash. What might be considered a substandard intersection treatment today will eventually graduate to something more mature. For example, a painted stripe that winds through a parking lot, might be upgraded to a perimeter route next year, which would then eventually be dovetailed into a larger separated network. A green swath at an intersection now would convert to a bike box next year which would then be complemented with a prioritized cycling traffic signal in the following year. Doing “something” provides a much-needed nod to the cyclists. It is usually better than doing nothing at all and helps set in motion a process whereby facilities can mature. Cities are constantly evolving. This includes their transportation infrastructure. That is, over time, the lemonade gets sweeter and sweeter. Cycling treatments usually pale in comparison to the costs of auto or transit infrastructure. As long as lives are not gravely put at risk and accidents largely avoided—a big caveat, I admit—cycling treatments are inexpensive experiments. If they succeed, they are built on and further developed. If they clearly fail, they can be erased.
 A portion of the creek was reconfigured as a white water recreation park, thereby incorporating another level of complexity to the flood mitigation strategy. Gary Lacy, a recreation planner for Boulder and an avid kayaker, would reportedly boat to his downtown work location along the creek.
 Greenways Master Plan. City of Boulder – 2001 update. http://bouldercolorado.gov/files/Utilities/Greenways/MasterPlan.pdf. Accessed January, 2012
 Daley’s playbook: Meig’s field was a fully functioning private airport runway strip on Chicago’s pristine lakefrong. Citing security concerns in 2003, Mayor Daley ordered the bulldozers tear up the runway and they did so in the middle of the night to avoid obstruction and protesting efforts.
 American Association of State Highway and Transportation Officials (2012). Guide for the Development of Bicycle Facilities, 4th Edition. ISBN: 1-56051-527-2.
 This is a document that ASHTO was so proud about that they produced a video for its release, see: http://www.youtube.com/watch?v=WeE62AGXQZg
 Krizek, Kevin J. and Rio Roland (2005). What is at the End of the Road? Understanding Discontinuities of On-Street Bicycle Lanes in Urban Settings. Transportation Research, Part D. 10(1): p.55-68
 This report is the world’s most authoritative manual on bikeway design and is published by CROW—a Dutch acronym of the Information and Technology Platform for Transport, Infrastructure and Public space, a Dutch non-profit collaboration between government and businesses.
 As is evidenced by AASHTO publishing their 4th edition, American Association of State Highway and Transportation Officials (2012). Guide for the Development of Bicycle Facilities, 4th Edition. ISBN: 1-56051-527-2.
I am in Santiago, Chile delivering one of the keynotes for the International Workshop on Urban Transport and Sustainability. Here are the key points from my presentation titled, “The Next Frontier of Travel vis-à-vis Urban Travel:” (1) Accessibility needs to be the primary aim for the development and evaluation of planning projects in cities, (2) Cycling can provide a valuable part of this aim (and there are various things to be aware of in getting more people on bikes), (3) Analyzing the digital traces left by people provides a fertile research efficiency to better dial in the effectiveness of (1) and (2) above.
Call for Papers (note subsection below on active transport)
World Symposium on Transport and Land Use Research 2014
June 24-27, 2014 in Delft, the Netherlands
About the Symposium
We are pleased to announce the 2014 meeting of the World Symposium on Transport and Land Use Research (WSTLUR) to be held in Delft, the Netherlands, June 24 – June 27, 2014. The conference provides a unique international forum for academics and practitioners at the intersection of economics, planning, design, engineering, and other relevant disciplines. The Conference is aimed at developing a better understanding of the interaction between the dynamics of land use and transport, with an emphasis on the way in which the built environment can contribute to more sustainable transport in a rapidly changing world. Papers are welcome on a wide range of topics covering all modes of transport, both passenger and freight transport, at all spatial scales.
The Delft University of Technology hosts this conference in the bicycle friendly city of Delft in the heart of the Randstad Holland. In addition to the technical program, the conference provides a day tour through parts of the Randstad, including transit-oriented development in the city of The Hague’. Hotel rooms are pre-booked in the historical city center; within walking distance of the university campus (public transport is also available).
In addition to presentations based on peer-reviewed papers, the conference program will include confirmed plenary presentations from:
Submission of Papers
WSTLUR seeks papers on the interaction of transport and land use. Welcome domains include: engineering, planning, modeling, behavior, economics, geography, regional science, sociology, psychology, health, architecture and design, network science, and complex systems.
Original papers must be submitted electronically November 30, 2013 for consideration. Full papers should be uploaded for peer review at http://jtlu.org prior to midnight (Pacific Standard Time) in the above mentioned date. See http://wstlur.org for more details related to the conference.
All papers accepted for WSTLUR will be considered for publication in the Journal of Transport and Land Use.
WSTLUR welcomes all papers on the topic of transport and land use. In addition to this general call, special calls are listed below in alphabetical order.
When submitting your manuscript please verify which session stream you are interested in.
For questions regarding the conference please direct them to
The Active Communities / Transport (ACT) Research Group (co-directed by Kevin J. Krizek) will be hosting its first “Scholarly Workshop;” April 18-19 on the Boulder/Denver campuses. Daniel Rodriguez, PhD, of UNC-Chapel Hill will be the first distinguished scholar. The workshop is intended to provide insights and feedback on research currently being pursued or proposed by student and faculty members. All members of the CU community are welcome to attend with complimentary registration.
Current ACT students will present their well-developed research proposals to ACT faculty and student members, as well as to Dr. Rodriguez, and receive feedback from the group. The central purpose of the event is to learn from close interactions with a proven scholar, and to elevate the quality and depth of the group’s work through constructive and critical feedback. In addition, there will be opportunity to reflect on perspectives and experiences about transportation-land use research and scholarship. Please email with questions or further interest. If you would like to attend or for further information, please contact Professor Krizek.
The following infographic from Active Living Research recently came across my email. It is nicely presented; it is a fair representation of some of the research. But……
…while it might satisfy some central purposes of an infographic, we have argued elsewhere, it is best to to consider the balance of the research and not rely on what one study here or there has to offer about a particular factoid.
The larger issue is that based on an article in the recent issue of ensia, knowledge and information have little to do with behavior change. Moral suasion does not work either (my favorite quote from the article: “If educating people about an issue would solve the problem, we would have no obesity and no smokers in our country”).
Two reactions: First, competition (what they call “gamification”) and peer pressure are paramount. We are getting there with the both–in terms of cycling, at least–but these elements take time to engender in society. Second, talk is cheap. Most everyone says they want to save water and the planet; action is less so.
Active Living Research just released a useful brief on the value of and approaches to counting bikes for cities. We have seen some of this information before, see here and a webinar here, but it is good to have this new and reliable digest available in a highly visible venue.
Based at the Stanford Woods Institute for the Environment, the Leopold Leadership Program provides academic environmental researchers with skills and approaches for communicating and working with partners in NGOs, business, government and communities to integrate science into decision‐making.