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Bike boxes - a failed experiment
Portland's pushers of bike facilities rammed through some bike boxes a
few years ago. IIRC, they painted these things on the roads despite the fact that they are not approved in the MUTCD. (The MUTCD exists so every burg doesn't invent its own strange designs, confusing road users and killing people. There is a procedure through which burgs can apply for permission to experiment, but the procedure requires them to document everything and actually collect data.) Anyway, after screwing up by installing without permission to experiment, Portland got its congressman to pull strings to get the bike box "experiment" approved after the fact. Kind of like "Yeah, I ran that red light on Tuesday, but my cop friend told me on Wednesday that I had his permission, so you should dismiss my ticket." So Portland collected data, and the data is in. And just as predicted by people who understand simple geometry, physics, traffic movements and bicycles, it turns out the bike boxes did NOT help. In fact, at four intersections in particular, the bike boxes seem to have more than doubled the number of crashes. And there was at least one fatality, although I'd say that was caused by the bike lane to the right of right turning traffic, not the bike box itself. Here are the links: http://blogtown.portlandmercury.com/...crease-crashes and http://www.portlandmercury.com/image...etter_merc.pdf or http://tinyurl.com/cocu8kb and http://tinyurl.com/d9rf4zv The letter's interesting. Since the green paint in the bike boxes is not magically protecting people when they're to the right of a right turning vehicle, Portland has a new plan: _Dashed_ green paint! Takeaway message #1: Do not position yourself to the right of a right turning vehicle, no matter what the "magic" bike facility tells you to do. Instead, guard against right hooks. Take the lane when necessary. Of course, in Oregon, bike lanes are pretty much mandatory. That leads to takeaway message #2: Be very careful what you - or your local "bike advocates" - ask for. - Frank Krygowski |
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