[Talk-GB] OS and OSM
s.l.chilton at mdx.ac.uk
Fri Mar 11 11:25:43 GMT 2011
I am sure the overall message is going to be "ground survey wins".
I am a get-out-and-map-it person but see a place for some of this data within that process.
Case studies like this are part of the evidence for why this is the case.
But also want to reflect more views than just my own.
Thanks for response
From: Tom Chance [mailto:tom at acrewoods.net]
Sent: 11 March 2011 11:00
To: Steve Chilton
Cc: talk-gb at openstreetmap.org
Subject: Re: [Talk-GB] OS and OSM
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<mailto: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
phone: 020 8411 5355
email: steve8 at mdx.ac.uk<mailto: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 http://inspireme.middlesex.wikispaces.net/
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