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