1
general::
Phrase(s): on the road
Fig. traveling from place to place, not necessarily on the highways; working away from one’s home or office. • I was on the road with the circus for six months. • I don’t work in the main office anymore. Now I’m on the road.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
1. Traveling, as in Our salesmen are on the road five days a week. [Mid-1600s] 2. on the road to. On the way to, following a course that will end in. For example, We could see Mary was on the road to recovery, or The business obviously was on the road to ruin. [Mid-1600s]
American Heritage Idioms