Gentlemen of the road or Knights of the road. Highwaymen. In the latter a double pun is implied. A first-class highwayman, like Robin Hood, is a “Colossus of Roads.”
The law of the road is a paradox quite, In riding or driving along; If you go to the left you are sure to go right. If you go to the right you go wrong.
or Roadstead, as “Yarmouth Roads,” a place where ships can ride at anchor. (French, rader, to anchor in a rade; Anglo-Saxon, rad, a road or place for riding.)
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894