Combined Authorities in England, Ultra Generalised Boundaries as of March 2017

March 2017 digital vector boundaries for Combined Authorities in England. The dataset contains five boundary versions, including full resolution and generalised versions clipped to the coastline, with file sizes ranging from 22 KB to 2 MB. It is provided by the Office for National Statistics and contains both Ordnance Survey and ONS Intellectual Property Rights.

Use Cases

• Create thematic maps of Combined Authorities based on the ultra generalised (500m) boundaries mentioned in the description.
• Perform spatial joins or analysis using the full resolution boundaries clipped to the coastline (Mean High Water mark).
• Integrate administrative boundaries into web mapping applications using the generalised (20m) or super generalised (200m) versions for faster rendering.
• Analyze the geographic extent of Combined Authorities using the full resolution boundaries that include the realm's extent and offshore islands.

Strengths

• Provides five distinct boundary versions with specific tolerances (20m, 200m, 500m) for different use cases.
• Includes specific file sizes for each version, ranging from 22 KB to 2 MB, indicating manageable download sizes.
• Contains boundaries as of a specific date (March 2017), providing a temporal snapshot.
• Originates from authoritative sources: the Office for National Statistics and Ordnance Survey.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale statistical analysis.
• Data is from March 2017; freshness should be verified for current applications.

Provenance

Source

Office for National Statistics

Time Range

March 2017

Freshness

Last updated 2026-07-08 13:32:55.680734; freshness should be verified

Geography

England