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I don't doubt that if a) our municipalities were willing to create the kinds of separate facilities that are b) comprehensive enough to make utility cycling feasible, and to c) maintain them in rideable condition, then more people would ride, and things would be marginally safer for all cyclists.

Of course, that's a big 'if'.

As it is, municipalities construct something like the CCT, at which point drivers can't figure out "why in God's name there's a cyclist riding in the middle of the street on Independence Ave!"

I will say I feel a hell of a lot safer riding on, say, Pennsylvania Ave, or Wisconsin Ave, or what-have-you than I do riding on the Capitol Crescent Trail on a Saturday afternoon.

That thing is a death trap compared to urban roads.

This is going to come up big time in Montgomery County with the newly proposed redesign of Rockville Pike. One of the project's design consultants (hired by the developers, but with a lot of progressive bike/ped experience) is recommending "cycletracks", essentially hybrid bike paths/lanes that are separated from the street by a curb or landscape buffer, one on each side, each one-way.

Is the first quote in this entry Haake's or P&B's?

P&Bs

I find the terminology used here very confusing. For example, most laypeople would not consider a bike lane on a regular street to be a "separate cycling facility" since it is not, in fact, separated from traffic by anything but a painted line and trust. A dedicated bike path far from the road or the "cycletracks" Jack refers to is what most people would call "separate." So perhaps in doing these studies, zero accommodation, paint-based accommodation, and real physical barrier protection should be treated as three different approaches.

Jack, my immediate question (and I'm sure this has been covered to death somewhere, if someone has a link): How do you turn left from a cycle track? How do you avoid a right hook going straight?

Because of those problems, it seems as though a cycle track would be more dangerous and less convenient than a bike lane. But then, I have no experience with cycle tracks...

Erica, my fault.

The top part defends separate bike facilities. The second part (about bike lanes) seemed to me to be related, because Vehicular Cyclists also often dislike bike lanes. But Pucher and Bueler are not talking about bike lanes.

If you want to turn left, I believe you're supposed to go straight and then turn left when you get to the far side of the cross street. Or you can make a right turn and U-turn. The Rockville Pike design will have the cycletrack divider ending some distance before each intersection, so you might be able to cross into the left turn lane and turn left like a car. It doesn't let you do a lot of the things you learned to do as a vehicular cyclist. Things like merging with traffic at intersections so you don't get right-hooked.

Thanks for the summary of the journal article and for pulling that FHWA from the archive. In 2006 TxDOT (of all agencies!) did its own study of what effect the presence of bike lanes had on bike/car encounters.
This article contains a summary of the study and a link to the full report:
http://www.utexas.edu/news/2006/09/18/engineering/

Among its more interesting findings:
--When bikes lanes are present, bikers are less likely to choose the sidewalk.

And, good god, the sidewalk is --almost always-- the absolute worst place for a biker to be.

As a UT engineering alum, I'm positive I linked to that article.

While I don't think cycling on 45 mph six-lane arterial roads in the suburbs are exactly ideal, I don't look to the cycle path as a solution.

Just because the existence of cycle tracks in European cities coincide with high ridership, that doesn't mean that they *caused* it:

http://en.wikipedia.org/wiki/Cycle_path#Segregated_cycle_facilities_and_transportation_cycling
"Between the late 1980s and early 1990s the Netherlands spent 1.5 billion guilders (US$945 million) on cycling infrastructure, yet cycling levels stayed practically the same.[81] When the flagship Delft Bicycle Route project was evaluated, the results were

not very positive: bicycle use had not increased, neither had the road safety. A route network of bicycle facilities has, apparently, no added value for bicycle use or road safety.[82]

In the UK, a ten-year study of the effect of cycle facilities in eight towns and cities found no evidence that they had resulted in any diversion from other transport modes.[83] A similar finding had been reported for Denmark in 1989, where it was found that there was no correlation between cycle facilities and increased cycling unless active traffic restraint measures were also present. In Denmark as a whole, the establishment of a huge cycling infrastructure has been accompanied by cycling levels that have stayed roughly stable (with minor fluctuations) since 1975. The construction of 320 kilometres (200 mi) of "Strategic cycle network" in Dublin has been accompanied by a 15% fall in commuter cycling and 40% falls in cycling by second and third level students. In contrast, in the late 1970s and early 1980s cycling underwent robust growth in Germany, the UK and Ireland while there was little or no investment in cycling infrastructure.

Some commentators argue that the "cause and effect" being seen is actually the reverse of that which is often claimed: that it is the presence of large numbers of cyclists that tends to precipitate the construction of segregated cycle facilities. For instance, bike planning in Davis, California was driven by the prior existence of a "dramatic volume" of cyclists in the 1960s.[84] Possibly the best that can be said is that the safety of cycling and the number of cyclists results from a complex interaction of spatial planning, population density, legislative environment, and wider traffic/transportation management policies. The evidence suggests that segregated cycle facilities can play either a positive or negative role, secondary to other factors - see utility cycling."

Regarding cycle tracks and safety:

http://en.wikipedia.org/wiki/Cycle_path#Direct_safety
For urban roads with many junctions, accident analysis suggests that segregated cycling facilities are likely to produce a net increase in the number of collisions. These conclusions are supported by the experience of countries that have implemented segregated cycling facilities. In the United States,[35]UK,[36] Germany, Sweden,[37] Denmark[38]and Finland,[39] it has been found that cycling on roadside urban cycle tracks/sidepaths results in up to 12-fold increases in the rate of car/bicycle collisions. At a 1990 European conference on cycling, the term Russian roulette was used to describe the use of roadside cycle paths.[40]

In Helsinki, research has shown that cyclists are safer cycling on roads with traffic than when using the city's 800 kilometres (500 mi) of cycle paths.[41] The Berlin police and Senate conducted studies which led to a similar conclusion in the 1980s.[42] In Berlin 10% of the roads have cycle paths, but these produce 75% of fatalities and serious injuries among cyclists.[43] In the English town of Milton Keynes it has been shown that cyclists using the off-road Milton Keynes redway system have on a per-journey basis a significantly higher rate of fatal car-bicycle collisions than cyclists on ordinary roads.[36] Cycle lanes and bike lanes are less dangerous than cycle paths in urban situations but even well-implemented examples have been associated with 10% increases in casualty rates."

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