Steve, 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. Regards, Tom On 11 March 2011 10:19, Steve Chilton <[email protected]> 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? > > Cheers > STEVE > > Steve Chilton, Learning Support Fellow > Educational Development Manager > Centre for Learning and Teaching Enhancement > Middlesex University > phone: 020 8411 5355 > email: [email protected] > http://www.middlesex.wikispaces.net/user/view/steve8 > > 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 > http://inspireme.middlesex.wikispaces.net/ > > > > _______________________________________________ > Talk-GB mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/talk-gb > -- http://tom.acrewoods.net http://twitter.com/tom_chance
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