OSNI 1:1 Million Raster Map of Northern Ireland Infrastructure

OSNI Open Data provides a 1:1,000,000 scale raster image depicting the infrastructure of Northern Ireland. This static map is the smallest-scale raster product from the Ordnance Survey of Northern Ireland, designed for use as a background layer in digital maps. Its availability under an open government license facilitates its integration into desktop and web-based geographic information systems.

Use Cases

• Creating regional overview maps based on the 1:1,000,000 scale raster image.
• Providing background mapping for thematic data visualization using the static image layer.
• Integrating a licensed open data base layer into desktop GIS software via the described Esri REST API.

Strengths

• Published under the OGL-UK-3.0 open government license, permitting reuse.
• Represents the smallest scale (1:1,000,000) OSNI raster product, providing a consistent regional overview.
• Available on multiple open data platforms, indicating established provenance and accessibility.

Limitations

• Metadata is sparse; specific column names, file size, and row counts are not provided.
• The dataset is a static raster image, limiting analytical capabilities compared to vector data.
• The 'last updated' date (2026-07-08) appears to be a future timestamp, suggesting potential metadata inaccuracy.

Provenance

Source

Ordnance Survey of Northern Ireland (OSNI) via OpenDataNI.

Collection Method

Published as open data, likely derived from official national mapping.

Freshness

Last updated date reported as 2026-07-08, which is a future date and may be erroneous.

Geography

Northern Ireland.