OS Locator - guidance notes


Introduction

These guidance notes explain the OS Locator data product available in Data Download. Locator is a ASCII text file, colon separated, available as a .csv file; it comprises of Road Names and their locations across Great Britain.

When used within a GIS, OS Locator enables users to identify and find specific locations. This enables users to make searches on road names by a combination of criteria, including: locality, settlement, local authority and county. OS Locator can be used in location finding applications, such as customer service centres and for use on the web, in conjunction with 1:10 000 Scale Raster, 1:25 000 Scale Colour Raster and OS Street View.

The data is approximately 120 MB in size.

The fields in the data

This table sets out the fields that are present in the data for each entry:

Field name Example Description

Name

ALRESFORD ROAD

Feature name
Classification B3404 Road number classification

Centx

449590 X co-ord for centre point of road object

Centy

129430 Y co-ord for centre point of road object
Minx

448797

X co-ord for SW corner of the road object box

Maxx

450392

X co-ord for NE corner of the road object box
Miny 129422

Y co-ord for SW corner of the road object box

Maxy 129510

Y co-ord for NE corner of the road object box

Settlement WINCHESTER Town in which the centre of the object falls
Locality St. John and All Saints 1990 boundaries description for the point at the centre of the object
Cou_Unit Hampshire County County in which the centre of the object falls
Local Authority Winchester District

Local Authority in which the centre of the object falls

Tile_10k

SU42NE

1:10 000 tile reference for the centre point of the object
Tile_25k

SU42

1:25 000 tile reference for the centre point of the object
Source Roads Source of information

Names that are included

OS Locator contains road names from: