Dominica Road Surface and Passability: 300 km of Arterial Routes

Arterial road metrics for Dominica, including AI-derived surface and width data, were produced by HeiGIT using 2020 and 2024 PlanetScope imagery. The data covers approximately 300 km of road segments, providing 89.2% accuracy for surface type predictions to fill gaps in OpenStreetMap coverage.

Use Cases

• Evaluating heavy vehicle access and logistical constraints using the 'Humanitarian Passability Index (HPI)'
• Monitoring national infrastructure development by analyzing 'Road Surface Change' from unpaved to paved
• Supplementing missing OpenStreetMap data using 'DL Surface Prediction' for segments lacking 'surface' tags

Strengths

• 89.2% surface model accuracy outperforming OSM surface tags
• Multi-temporal change detection between 2020 and 2024
• Standardized width classes (1-3) based on heavy vehicle capacity

Limitations

• Geographic scope is limited to the island of Dominica
• Excludes minor and residential road networks
• AI-derived predictions may contain errors inherent to satellite imagery interpretation

Provenance

Source

HeiGIT (Heidelberg Institute for Geoinformation Technology)

Collection Method

Deep learning analysis of PlanetScope satellite imagery integrated with OpenStreetMap road network data.

Time Range

2020 - 2024

Freshness

Last updated March 2026; utilizes satellite imagery from 2020 and 2024.

Geography

Dominica