One of the approaches for Orcas Island in Washington state is to leave the roads narrow believing that traffic will slow down. As a biker I feel very insecure riding the roads and as a driver who drives the same roads praticlly all day long have seen bikers run off them. I'm amazed every summer that there aren't yet bad fatalities.

Personally in the US I don't believe this would work as drivers often feel they have rights over anyone else on the road and that if they kill someone, "then that's their own damn fault."