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Rex Booth
Roman Roads: New digital map expands the empire’s network to nearly 300,000 km by Dario Radley
November 9, 2025
A new high-resolution digital map of Roman roads, called Itiner-e, is providing the most detailed picture yet of the Empire’s vast transportation network as it existed around 150 CE. Published in Scientific Data, the dataset almost doubles the previously known length of roads, now totaling 299,171 kilometers (185,896 miles) across almost four million square kilometers.
Section of the ancient Roman road Via delle Gallie in Valle d’Aosta, Italy
Built by cutting into the steep rock slope on the left. Credit: Rosario Lepore
At its height in the second century CE, the Roman Empire stretched from Britain in modern-day Europe to Egypt and Syria in Africa and Western Asia, with over 55 million inhabitants. Its extensive road network was vital for administration, trade, military logistics, and cultural exchange. Despite centuries of research, however, the network has never been completely mapped, and earlier digitizations have lacked high resolution.
Itiner-e was developed by Tom Brughmans, Pau de Soto, Adam PaΕΎout, and their colleagues by combining archaeological and historical sources with modern and historical topographic maps, satellite imagery, and remote sensing.
Digital Map of Ancient Roman Roads - "Zoom out" to see all of Europe, Western Asia, and Northern Africa.
https://imperium.ahlfeldt.se/
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