With my job, (one of them) I have a chance to watch a busy interscetion, where I can see many cyclists toing and froing and zooming about &c. I've not been keeping scientific list, but I've been trying to keep an eye on what people are doing wrong or right. The breakdown is not really as I expected. it seems to be something like
people doing things right - ~35%
people in the right lane but not stopping etc - ~15%
People on sidewalks - ~35%
Bike salmon ~15%
That looks better than I thought it would. My sample may be skewed, as I'm only 2 blocks from Forest park. I may be getting some number of "recreational" cyclists who only really ride in the park.
The thing that bugs me is the obvious commuters. There are a fair number of folks with bike shop bikes and baskets &c. obviously commuters, obviously doing this a lot, who are on the sidewalk. (today I saw a salmon with panniers and fenders) I mean, they should know better. and recognize that they could get where they are going much faster out where they belong.
... Okay that was weird. I just saw the serious bike salmon riding the other way, this time he was in the correct lane. ... Weird.
Bike Salmon -- A rider (usually in the bike lane if there is one) riding on the left hand side of the street.