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Ordnance Survey – Great Britain's national mapping agency

Positional accuracy improvement programme

Programme maps

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April 2006

PAI Other rural areas map (262 Kb)

PAI Rural towns map (242 Kb)

Please note:
Microsoft Internet Explorer (IE) 4 & upwards with Adobe SVG Viewer 3 installed is required to view the above maps (page print not functional in IE 4). Netscape browsers are not compatible.


A graphical representation of the tables is also available below:

PDF file Other rural areas map (2.6 Mb)

PDF file Rural towns map (2.5 Mb)


Visualise your own data

Do you want to integrate Positional Accuracy Improvement (PAI) management information with your local data holdings to help visualise, analyse and quantify the impact of the PAI update programme?

To assist in this process the National Grid is available in both Shape or MID/MIF format. This can be used in conjunction with the text files supplied under the Programme section.

Zip file National Grid Shape file (ZIP 5.8 Mb)

Zip file National Grid MID/MIF file (ZIP 4.6 Mb)

Alternatively, more information is available on the ESRI UK website >>>


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