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In parts of the world, bollards are much more common. But in New York City, they are much more rare: http://www.streetsblog.org/2005/10/14/making-nycs-streets-sa...

There have been a significant number of cases where cars end up sidewalks near where I live. It's not just drunk drivers; it's often distracted drivers who are texting or using an app.

Bollards are a great and fairly cheap solution, but many bureaucrats are pro-car and oppose them for the danger they might pose to drivers.

<< [O]ne of the downsides to bollards is that while protecting human beings, they can do damage to automobiles. John Kaehny, the former executive director of Transportation Alternatives was a big fan of bollards and often pushed the city to install them at dangerous locations. DOT traffic engineers consistently opposed his efforts telling him that bollards were no good because they did damage to cars or that bollards struck at high speed could "become dislodged and become dangerous projectiles that might kill or injure pedestrians." These are the kinds of stories that makes one think New York City traffic engineers empathize more with automobiles than people. >>



Wow. What a disgusting quote. As if a "high speed" car on the sidewalk isn't already a dangerous projectile :P


It may be unlikely but it does happen. I know someone who drove off the road (60mph single carriageway) at high speed and into a bollard. The bollard went through the air, smashed through a house window and caused the inhabitant to have a heart attack.


If someone hits a pedestrian at even 40 mph, it's 85% likely to result in a fatality: http://www.streetsblog.org/2010/04/27/waiting-for-raymond-de...

If that same accident happens at 20 mph, there's only a 5% chance of a fatality. That's a big reason why London lowered the speed limit in the heart of the city to 20 mph: http://www.streetsblog.org/2013/09/13/the-heart-of-london-ad...

New York is pushing for a similar change... hopefully if and when it happens, more bollards can be put in place without endangering others. http://www.streetsblog.org/2013/05/16/neighborhoods-across-n...




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