[Talk-GB] OS and OSM
tom at acrewoods.net
Fri Mar 11 10:59:45 GMT 2011
In Southwark I experimented with bulk importing buildings auto-traced from
OS StreetView, but gave up in favour of manually tracing from Bing imagery.
I was supplementing both methods with ground surveys.
I switched when I approached central London parts of Southwark, where OS
StreetView is of such poor quality that it was fairly useless.
In central and south Southwark I still think it provides a good "first
pass", which can be improved by tracing Bing imagery and ground surveys to
refine shapes and add addresses.
Browse around and judge for yourself.
I would also cite the errors we have found in OS Locator as a reason for
preferring ground surveys, using the OS product as a tool to indicate
possible errors to check out. We found 56 errors in Southwark.
On 11 March 2011 10:19, Steve Chilton <S.L.Chilton at mdx.ac.uk> wrote:
> I have been asked by editor of the Cartographic Journal to write a short
> piece on the effect of the release of OS OpenData on the OpenStreetMap
> project, and I am just trying to gather my thoughts, and make sure I cover
> all bases.
> I was present at Blackadder's Society of Cartographers talk on "Why OSM
> won't be bulk importing OS OpenData" and am aware of the work Chris Hill has
> done on admin boundaries etc.
> Obviously also aware of the ITO work with OS Locator and what people have
> done with that.
> There was work on importing detailed water features, was that Chris as well
> (goes off to read back through his blog).
> Can anyone point me to others who have explored the possibilities that OS
> OpenData provided - PARTICULARLY if they can evidence WHY it is NOT of value
> to OSM?
> Steve Chilton, Learning Support Fellow
> Educational Development Manager
> Centre for Learning and Teaching Enhancement
> Middlesex University
> phone: 020 8411 5355
> email: steve8 at mdx.ac.uk
> Chair of the Society of Cartographers: http://www.soc.org.uk/
> 'Inspire Me!' lunch time showcase on Assessment and Feedback, organised by
> the Centre for Learning and Teaching Enhancement
> Talk-GB mailing list
> Talk-GB at openstreetmap.org
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