One of the roads that I travel to work is frequented by bicycles. Sometimes they are two abreast, and sometimes there are many traveling in a single file. This road has curves in some areas, and double yellow lines in some of the long straightaways.
Is it legal to pass a bike, with the 3-foot rule, over a double yellow line?
This is a common problem, and if motorists couldn’t cross the double yellow line to pass bicyclists in a narrow lane, they could be stuck for very long times in some locations. Even if the cyclist is riding far to the right, motorists cannot legally and safely pass in narrow lanes without at least partially changing lanes.
If there is no oncoming traffic, and if there is no intersection, blind curve or other hazard, the law provides an exception for crossing the double yellow center line to avoid an obstruction. Is a slow-moving bicyclist an obstruction? Please see this post for more detail:
In some states, there are statutes that require bicyclists to move out of the roadway if traffic is backed up behind them. That is not the case in Florida but courteous bicyclists will consider doing that when it can be done safely.
See also the posts about overtaking and passing and substandard-width lanes.