Of course, it’s a Roman road and in particular it’s the Via Domitia at Ambrussum, near Nimes in southern France. The Via Domitia provided a fast and sure link from Spain to Italy. constructed in 118BC by the proconsul Gnaeus Domitius Ahenobarbus.
Roman roads were built to link public administration, especially the postal service, but first and foremost to provide a cross-continental system for the rapid movement of troops. But trade followed and many Roman roads were used into the medieval period which explains the well-worn chariot (or more likely the more mundane cart) tracks.
A non-typical Roman…
But you can see the scale of the road; it easily accommodated two-way traffic if need be.
A stack of detail about how they were built is at
Building Roman Roads – The Roman Surveyors
And here’s a typical cross-section.
Courtesy of britannica.com
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