It was both a commercial highway and a fast transit message route with relays of horses in posting houses stationed at intervals to facilitate faster flow of information.
the Royal Road
Persians
The Royal Road.
The royal road
To provide a communications route for official couriers.
The Royal Road ran through what is now the Middle East. It was originally built by the Persian civilization.
A footpath over the mountains. The Royal Road was a horse track for mounted official couriers.
Not one iota. It was a military courier route for communications.
The Royal Road acted as a "cable holding the society together literally and figuratively." In other words, it was freaking awesome! -John Duytku Ph.D.
To provide a horse-courier means of communication in areas where sea travel was not possible.
In California, the royal road is called "El Camino Real". The ice cream shop is right around the corner, on the royal road. The royal road is temporarily closed for repairs, ma'am.
Systems of communication and transportation today that compared to the Royal Roads of the Persians are common day highways. Highways are used to speed up the process and allow us to travel easier between places just like the Royal Roads.