1
general::
Start an undertaking; begin work. For example, After months of training, the astronauts were eager to get the show on the road. This synonym of GET GOING alludes to a theatrical production going on tour. Also see GET THE BALL ROLLING.
American Heritage Idioms
2
general::
Phrase(s): get the show on the road [and] get this show on the road
Fig. to get (something) started. • Let’s get started! Get the show on the road! • Get this show on the road. We don’t have all day.
McGrawhill's American Idioms And Phrasal Verbs