Overview
- An international team released the open Itiner‑e dataset and interactive map on November 6 with a companion paper in Scientific Data.
- Itiner‑e charts 299,171 kilometers of roads across 14,769 sections, classifying 34.6% as main routes and 65.4% as secondary.
- The map integrates earlier atlases, archaeological records and milestones with topographic analysis plus modern and historical aerial and satellite imagery.
- Only about 2.7–3% of road lengths are located with high certainty, roughly 7% are labeled hypothetical, and close to 90% are conjectured based on less precise evidence.
- The snapshot targets circa 150 CE and adds extensive coverage in the Iberian Peninsula, Greece and North Africa, enabling new studies of connectivity, administration, trade, migration and disease spread.