A Field Boundary is a line feature representing the field boundary features adjacent to, or contained within, areas of agricultural land, trees, rough grassland or heath. It also includes features adjacent to land in the RPA’s Rural Land Register that are situated within urban areas in England. Field Boundary features replicate all, or part of, the underlying OS NGD Structure (Built Obstruction) Line and are classified as Tree Canopy, Wooded Strip, Hedge, Wall, Other or Unknown (in hierarchy order).
Theme
OS NGD Structures
Collection
OS NGD Structure Features
Feature Types
Field Boundary
Coverage
Great Britain, in Rural and Moorland areas. Features adjacent to, or contained within, areas of Agricultural Land, Trees, Rough Grassland and Heath OR when adjacent to land in the Rural Payment Agency’s (RPA) Rural Land Register (RLR) where they are in urban areas in England.
Geometry
Lines that represent physical barriers (Built Obstruction).
Data Sources
Automated classification using OS aerial imagery, digital surface models (DSM), digital terrain models (DTM), and ‘Built Obstruction’ Structure Lines from OS NGD.
Data Updates
3-year cyclical revision from OS aerial imagery (25cm). When the topographic area updates in 10km-by-10km area are complete, the automated process is run to classify and calculate height and width values. When available, updates are processed up to daily into OS NGD.
Supply Type
Full supply and Change-Only Update (COU).
Supply Formats
GeoPackage or CSV download from OS NGD Select+Build;
GeoJSON from OS NGD API – Features; vector tiles from OS NGD API – Tiles.
Licensing Terms
Available to customers under PSGA licensing terms. Commercial terms are available for OS Partners based on the number of hectares.