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HeiGIT generated this geospatial dataset covering 38,000 km of arterial roads in Portugal using AI analysis of PlanetScope satellite imagery from 2020 and 2024. It provides high-resolution predictions for road surface, width, and passability for segments classified as motorway, trunk, primary, and secondary in OpenStreetMap.
Data is provided in GeoJSON and GeoPackage formats; users should refer to ArXiv paper 2512.04092 for detailed methodology on the HPI scoring and model training.