As an aside, if I am in the left hand lane (or middle lane) and the lane to my right slows down for some reason, do I have to slow down as well or can I pass them on their left if my lane is still clear ?
As an aside, if I am in the left hand lane (or middle lane) and the lane to my right slows down for some reason, do I have to slow down as well or can I pass them on their left if my lane is still clear ?