You can obtain the OA boundaries from the Census2001 website (ordered
via a webform, media on CD). Aggregating the polygons is simple and can
be automated - although it does take a while (the whole of England and
Wales is around a 700mb shp file.
Cheers
Laine
On Fri, 2003-06-20 at 11:52, Andy Wightman wrote:
> Matthew,
>
> Obtaining digital boundary datasets remains problematic despite askgiraffe
> website and others. As one who does freelance research I am particularly
> aware of this problem. Recent academic research I was involved in allowed me
> access to Digimap http://edina.ac.uk/digimap/ where you can download
> postcode data. The other key source is http://edina.ed.ac.uk/ukborders/
> However, these is only available to those with academic posts or
> affiliations.
>
> however, undertaking analysis of the 2001 census recently, I realised that
> using the freely available geography product availabel from GROS in Scotland
> and National Statistics(?) in England and Wales, you can build your own
> geographical boundary datasets in a GIS by aggregating output area polygons
> using the various lookup tables to postcode sectors, postcode sectors,health
> board areas etc.
>
> Since some datasets from ukborders are not terribly precise (eg. Scottish
> parishes), this is a good method for anyone wishing to obtain such data to
> do so cheaply and easily (well you have to spoend the time merging lots of
> polgon datasets!)
>
> Hope this helps.
>
> Regards
>
> Andy
>
>
> --
> Andy Wightman
> 9 Inverleith Terrace
> EDINBURGH
> EH3 5NS
> Tel: 0131 538 5175
> email: [log in to unmask]
> Caledonia Centre for Social Development Land Programme
>
> http://www.whoownsscotland.org.uk
> http://www.caledonia.org.uk/land
> http://www.andywightman.com
> http://www.isleofskye.me.uk
>
> > From: Matthew Stanfield <[log in to unmask]>
> > Organization: I Dig Info
> > Reply-To: Matthew Stanfield <[log in to unmask]>
> > Date: Thu, 12 Jun 2003 14:14:19 +0100
> > To: [log in to unmask]
> > Subject: Postcode area and / or district map / data
> >
> > Hi,
> >
> > Does anyone have a public domain UK postcode area map / coord data that I
> > could have or know where I can get such a thing? If available postcode
> > district level would be better.
> >
> > Many thanks and regards,
> >
> > ..matthew
> >
--
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Dr Laine Skinner
Department of Geography, Yr Adran Ddaearyddiaeth,
University of Wales: Swansea, Prifysgol Cymru: Abertawe,
Singleton Park, Parc Singleton,
Swansea, SA2 8PP, UK. Abertawe, SA2 8PP, Cymru, UK.
Tel/Ffon: +44 (0)1792 513163
Fax/Ffacs: +44 (0)1792 295955
http://www.swan.ac.uk/geog/
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