Researchers map 190,000 miles of Roman Empire roads, study shows

The short version

• Researchers have mapped approximately 190,000 miles of ancient Roman roads, capturing the network at its peak between the 2nd and 4th centuries AD.[Jalopnik]
• The analysis reveals that the most central route in the Italian peninsula followed the Adriatic coast, bypassing Rome, while empire-wide routes met in Constantinople.[Jalopnik]
• The study highlights how Roman infrastructure integrated travel, trade, and military movement across nearly 3.5 million square miles.[Jalopnik]
• Questions remain about whether Roman authorities possessed detailed master maps or primarily managed road planning at the provincial level.[Jalopnik]

Key facts

• The Roman road network spanned roughly 190,000 miles and connected nearly 3.5 million square miles across Europe, the Middle East, and North Africa.[Jalopnik]
• Researchers mapped the road system to depict its status at the empire's peak between the 2nd and 4th centuries AD.[Jalopnik]
• The network's primary routes converged in Constantinople, modern-day Istanbul, while the most central route in Italy bypassed Rome via the Adriatic coast.[Jalopnik]
• Roman road construction utilized materials like lime, cement, gravel, crushed stone, and paving stones, guided by surveying instruments like the groma.[Jalopnik]
• Many modern European highways follow alignments established by these ancient Roman roads, some segments of which remain intact today.[Jalopnik]

Sources

Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.

• Ancient Rome Built 190,000 Miles Of Roads And Researchers Just Traced Them AllJalopnik