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Posts from the "Bike Boulevards" Category

The Nowtopian 1 Comment

Good Roads?

I just finished an interesting journey that took me to the World Social Forum at the mouth of the Amazon River system in Belem, Brazil, and then to Los Angeles and finally home, just in time to attend a presentation last night at CounterPULSE of Rick Prelinger's Lost Landscapes III. The show consists of rare and obscure footage of life in San Francisco going back over 100 years. A few of the clips are striking reminders of how much the basic "technology" of roads and how we use them has evolved during the past century.

3BIKS875.jpgThese "boneshakers" in 1875 were superceded a decade and a half later by air-filled rubber tubes. With that new technology, bicyclists led the Good Roads Movement in the 1890s, demonstrating in the thousands for asphalt!
It's lost to most of our memories, but in the 1890s bicyclists took to the streets (pdf) by the thousands across the U.S. with a shared demand: Good Roads and asphalt! Sometimes you get what you ask for and it doesn't all work out quite the way anyone imagines! (It is worth noting in a brief digression that as we celebrate and promote the bicycle as an ecological alternative to the private automobile, the early breakthrough that made bicycling what it became was the invention of the air-filled rubber tube. That in turn made it possible to produce a smooth-riding vehicle in early industrial settings, but to produce such a device required a lot of raw material, like any industrial product. Rubber in the 19th century was not yet synthesized from hydrocarbons and the supply was garnered by imposing extremely barbaric slave-like conditions in the Amazon and the Congo, where tribal peoples were violently coerced into gathering ever-increasing amounts of wild rubber from the trees growing in the forest, all to meet the insatiable demand of bicyclists in Europe and the United States!) Read more...
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Market/Octavia Debate: Safety by Numbers or Safety in Numbers?

2792852796_3914807463.jpgA blue bike lane in Copenhagen.
Though Superior Court Judge Peter J. Busch ruled the MTA will not get an immediate exemption to the bike injunction to remove the eastbound segment of the bike lane at Market and Octavia because he didn’t think an “adequate case has been made that there's a public safety crisis,” when the hold on the bike plan is lifted as early as this spring, the agency will likely try to remove the lane anyway.  

So will the changes improve safety for bicyclists?  That answer depends on how you look at it and highlights a recurring international debate among transportation engineers and cycling advocacy groups: Are segregated bicycle lanes safer for cyclists than shared lanes?

The MTA argues its plan will increase safety, citing among other examples a report from Copenhagen, Denmark, which details equivalent lane markings to the current Market/Octavia design and the proposed design (PDF, pg 30):
One type continues all the way up to the intersection, the other type stops at a distance from the intersection. Experience shows that the shortened type of cycle track results in the fewest casualties, whereas cyclists feel more secure on the type that continues all the way up to the intersection. Both types may be supplemented with a blue marked crossing, which significantly improves safety.

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