Former Hierarchical Coding System
The older ONS code was constructed top down:
- A two-character code represented an administrative county.
For example, 12
for Cambridgeshire.
- A four-character code represented a district, so that the first two characters showed the county in which the district was placed.
For example, 12UB
for Cambridge district or 12UD
for Fenland.
- In the case of a unitary authority (including metropolitan and London boroughs) the first two digits were 00.
For example, 00AL
for Greenwich (London Borough) or 00EC
for Middlesbrough.
- Local Government wards were given a two-letter code within their local authority.
For example 12UBGA
for Petersfield Ward within Cambridge district.
- The smallest level, Census Output Areas were originally given an additional 4 digits within a ward, so that the first output area in Petersfield Ward was coded
12UBGA0001
. - Civil parishes were also coded using this hierarchical system. Parishes were coded using an additional 3 digits after their local authority. For example, within
12UD
for Fenland district, the parish of Tydd St. Giles was coded12UD010
.
Read more about this topic: ONS Coding System
Famous quotes containing the words hierarchical and/or system:
“Authority is the spiritual dimension of power because it depends upon faith in a system of meaning that decrees the necessity of the hierarchical order and so provides for the unity of imperative control.”
—Shoshana Zuboff (b. 1951)
“In a universe that is all gradations of matter, from gross to fine to finer, so that we end up with everything we are composed of in a lattice, a grid, a mesh, a mist, where particles or movements so small we cannot observe them are held in a strict and accurate web, that is nevertheless nonexistent to the eyes we use for ordinary livingin this system of fine and finer, where then is the substance of a thought?”
—Doris Lessing (b. 1919)