During the reign of Ashurbanipal who reigned in the seventh century BC,the Susa–Babylon highway became first ex of what?

Question

During the reign of Ashurbanipal who reigned in the seventh century BC, the Susa–Babylon highway became the first recorded example of what?

Answer 1

Toll road
A toll road, also known as a turnpike or tollway, is a public or private road for which a fee (or toll) is assessed for passage. It is a form of road pricing typically implemented to help recoup the cost of road construction and maintenance.