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As I understand it, there is both a written record of where the
rights of way go and the definitive map is in addition, with the
written record taking precedence?<br>
<br>
So if a local authority is drawing their map, and it's offset from
the line of a wall for example from OS MasterMap, as the written
record might say, then it wouldn't represent the wall, nor be a
substitute for it, and it could be used independently of the OS
data. Under the new derived data rules [1], that seems to make it
free to use.<br>
<br>
Copies of the definitive map go to Ordnance Survey and are used to
piece together the 25K and 50K maps, but I'm told Ordnance Survey
don't actually digitize it properly, just trace it, they claim not
to have a vector dataset. <br>
<br>
I don't know how local authorities are storing their data, but you
can be sure they all do it differently. If we could get our hands on
copies of the definitive map to trace (since the only feature you're
copying, was put there by the LA, not OS), would that do? <br>
<br>
I fear the problem is that even under the exemption process of the
PSMA, the LAs don't have a dataset per se of PRoWs that they could
just release, and might not be able to justify making one.<br>
<br>
Regards,<br>
<br>
Luke<br>
<br>
[1] <a
href="http://www.ordnancesurvey.co.uk/oswebsite/business/licences/using-and-creating-data-with-os-products/free-to-use-data/index.html">http://www.ordnancesurvey.co.uk/oswebsite/business/licences/using-and-creating-data-with-os-products/free-to-use-data/index.html</a><br>
<br>
On 24/03/2011 12:20, Peter Miller wrote:
<blockquote
cite="mid:AANLkTi=hc-=798MoThF20Hm-P8JRsbH3VOuZG67wU=8i@mail.gmail.com"
type="cite"><br>
<br>
<div class="gmail_quote">On 23 March 2011 19:25, TimSC <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:mapping@sheerman-chase.org.uk">mapping@sheerman-chase.org.uk</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">
<div text="#000000" bgcolor="#ffffff">
<div style="font-family: -moz-fixed; font-size: 12px;"
lang="x-western">Hi
all,
<br>
<br>
Here is part of an email I sent to a few councils
regarding rights of
way data (footpaths, bridleways, etc):
<br>
<blockquote type="cite" style="color: rgb(0, 0, 0);"><br>
I have a big and fairly complicated request regarding
the definitive
map. I am interested in making data more accessible to
the public (as
encouraged by central government [1]). It would be great
if the rights
of way data could be released without restriction,
specifically the
definite map. As you probably know, the rights of way
data is derived
from Ordnance Survey products which until now has
prevented this data
being released without restriction because of copyright.
However OS
will soon introduce the Public Sector Mapping Agreement
which defines
how government bodies can use OS products [2]. This
includes a new
mechanism for public bodies to request datasets that
have been derived
from OS products to be release either licensed as "OS
OpenData" or
"Free to Use" (section 2.5 of the license [3]). <br>
[1] <a moz-do-not-send="true"
href="http://data.gov.uk/" target="_blank">http://data.gov.uk/</a>
<br>
[2] <a moz-do-not-send="true"
href="http://www.ordnancesurvey.co.uk/oswebsite/business/sectors/government/psma/"
target="_blank">http://www.ordnancesurvey.co.uk/oswebsite/business/sectors/government/psma/</a>
<br>
[3] <a moz-do-not-send="true"
href="http://www.ordnancesurvey.co.uk/oswebsite/business/sectors/government/psma/docs/psma-member-licence.pdf"
target="_blank">http://www.ordnancesurvey.co.uk/oswebsite/business/sectors/government/psma/docs/psma-member-licence.pdf</a>
</blockquote>
<br>
Kent County Council wrote back:
<br>
<br>
<blockquote type="cite" style="color: rgb(0, 0, 0);">Dear
Mr
Sheerman-Chase <br>
Thank you for your email. <br>
I will forward your suggestions and comments to the Head
of the Service <br>
and Definitive Map Team. <br>
Kind regards <br>
Countryside Access Service <br>
</blockquote>
<br>
Does anyone have any ideas on how to actually get the
councils to apply
to OS to exempt their data and release it? Currently, I
get the
impression that they don't rate data openness as a high
priority - they
just nod and smile until I go away. It would be good to
get this data
for quality assurance or even ... dun dun dunnnnn...
importing. Could
we start a petition? Or use any contacts the community has
to make this
happen? Any other data sets worth liberating?
<br>
<br>
Once we have set a precedent, it should be easier to get
other councils
to comply, because of the way the OS exemption process
works.
<br>
</div>
</div>
</blockquote>
<div><br>
Technically I believe that the rights of way on the OS mapping
is derived from the legal documentation provided by the
council. As it happens I was talking to someone who was in a
position to know about this recently and he said that the OS
don't even claim ownership of rights of way data.<br>
<br>
Also. my understanding is that Kent are particularly proactive
on open data. This youtube presentation is worth looking at
even though it seems to be about their map interface. Clearly
they are talking the talk on open data.<br>
<a moz-do-not-send="true"
href="http://sparkdev.co.uk/showcase/show/open-kent">http://sparkdev.co.uk/showcase/show/open-kent</a><br>
<br>
Here is another link. Carol Patrick seems to be the person to
talk to.<br>
<a moz-do-not-send="true"
href="http://www.idea.gov.uk/idk/core/page.do?pageId=9274627">http://www.idea.gov.uk/idk/core/page.do?pageId=9274627</a><br>
<br>
<br>
Regards,<br>
<br>
<br>
<br>
Peter<br>
<br>
<br>
</div>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">
<div text="#000000" bgcolor="#ffffff">
<div style="font-family: -moz-fixed; font-size: 12px;"
lang="x-western">
<br>
Thoughts?
<br>
<br>
Regards, TimSC
<br>
<br>
</div>
</div>
<br>
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</blockquote>
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