There are not many at all around here (Long Island, NY), but there are a couple streets that do have them. One of them is on my commuting route. It's through a residential area, and the people who live on this street park their cars curbside...in the bike lane. It doesn't seems like a good idea to ride in and out of it. It doesn't seem reasonable that it would be legal to park in the bike lane (especially since all these houses have decent length driveways), but yet it's not discouraged by law enforcement that I know of, as they would be writing about 100 tickets per side per day on this particular 2 mile stretch. Am I missing something?