Greece Road Surface and Passability: 39,600 km of AI-Derived Metrics

HeiGIT produced this dataset covering 39,600 km of arterial roads in Greece using PlanetScope satellite imagery from 2020 and 2024. It provides AI-derived surface types, road widths, and passability scores for motorways, trunks, and primary/secondary roads to fill gaps in existing infrastructure maps.

Use Cases

• Logistics routing using Humanitarian Passability Index (HPI) scores to identify high-capacity transport paths
• Infrastructure development tracking via Road Surface Change indicators to monitor paving progress
• Vehicle accessibility assessment using Road Width Class to determine if segments support two-lane heavy truck flow

Strengths

• 89.2% surface model accuracy
• Covers 39,600 km of road network
• Fills 21.4% gap in missing OSM surface tags
• Multi-temporal comparison between 2020 and 2024

Limitations

• Geographic scope limited to arterial roads only
• AI-derived predictions may contain classification errors compared to ground-truth surveys
• Humanitarian Passability Index is a derived model rather than a direct observation

Provenance

Source

HeiGIT (Heidelberg Institute for Geoinformation Technology)

Collection Method

AI-derived predictions from PlanetScope satellite imagery integrated with OpenStreetMap road segment attributes

Time Range

2020-2024

Freshness

Based on satellite imagery from 2020 and 2024; last updated in March 2026.

Geography

Greece