Hmm, interesting. I have been doored once on my daily bike commute in Cambridge, MA. I've slipped and fallen once. A few times a month I have to swerve or brake

Hmm, interesting. I have been doored once on my daily bike commute in Cambridge, MA. I've slipped and fallen once. A few times a month I have to swerve or brake hard because someone didn't see me. And I'm fairly experienced at this point (about a year of cycling every day) -- when I started out, I was dodging cars and pedestrians once or twice a week. I haven't had any major injuries myself, but a friend was doored recently and hospitalized. He had surgery twice and missed well over a week of work. Months later, he still can't ride. My point is just that it certainly doesn't FEEL very safe. The claim of health benefits is certainly something I want to believe. And I definitely agree that more cyclists on the road would be good. Drivers just don't look for cyclists -- practically ever. If there were better bike lanes and they were always full of cyclists, people would probably learn pretty quick.