Overview
- Itiner‑e publishes a high‑resolution, public GIS of terrestrial routes across roughly 4 million square kilometers of the Roman world.
- The team reports about 299,171 kilometers of routes, raising the mapped total by more than 100,000 kilometers compared with earlier syntheses.
- Roughly one third of the network is classified as long‑distance viae publicae totaling about 103,478 kilometers, with the rest as secondary or provincial roads.
- Researchers combined historical maps, archaeological evidence and milestones with aerial and satellite imagery and topographic modeling to refine alignments.
- Spatial certainty remains limited for most segments, with approximately 90% imprecise, about 7% speculative and only around 3% mapped with high confidence.