[OSM-talk] Administrative boundaries (UK)

2008-08-25 Thread Bob Hawkins
I wonder from where most people obtain their administrative boundaries to 
digitise for OSM?  The most prevalent source is Ordnance Survey, but that 
current data is copyrighted, of course.  I am particularly interested in civil 
parish boundaries, then in local authority boundaries to build up areas of 
interest and coverage.  Can anyone help?

With regards,

Bob Hawkins___
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Re: [OSM-talk] Administrative boundaries (UK)

2008-08-25 Thread Shaun McDonald

Hi Bob,

Use the information on the ground. You will usually find signs welcoming 
you to the new area. It may be a few hundred metres either side, so look 
for the change in tar quality. You may also find that bin mapping is an 
option since the council often puts their name on the bins. (In Ireland 
you need to do bin mapping to get the names of the streets, rather than 
the boundaries).


Shaun

Bob Hawkins wrote:
I wonder from where most people obtain their administrative boundaries 
to digitise for OSM?  The most prevalent source is Ordnance Survey, 
but that current data is copyrighted, of course.  I am particularly 
interested in civil parish boundaries, then in local authority 
boundaries to build up areas of interest and coverage.  Can anyone help?
 
With regards,
 
Bob Hawkins



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Re: [OSM-talk] Administrative boundaries (UK)

2008-08-25 Thread Chris Hill
I've managed to map county boundaries from signs like "Welcome to ..." and 
other features like it runs along a river.  Some boundaries can be taken from 
out-of-copyright maps because they haven't changed.  I too would like to draw 
parish boundaries but I have no luck with any non-copyright source yet. I hope 
you find something useful.

 cheers, Chris



- Original Message 
From: Bob Hawkins <[EMAIL PROTECTED]>
To: talk@openstreetmap.org
Sent: Monday, 25 August, 2008 2:45:49 PM
Subject: [OSM-talk] Administrative boundaries (UK)

 
I wonder from where most people obtain their 
administrative boundaries to digitise for OSM?  The most prevalent source 
is Ordnance Survey, but that current data is copyrighted, of course.  I am 
particularly interested in civil parish boundaries, then in local authority 
boundaries to build up areas of interest and coverage.  Can anyone 
help?
 
With regards,
 
Bob Hawkins

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Re: [OSM-talk] Administrative boundaries (UK)

2008-08-25 Thread Peter Miller
> From: Shaun McDonald <[EMAIL PROTECTED]>
> Subject: Re: [OSM-talk] Administrative boundaries (UK)
> To: Bob Hawkins <[EMAIL PROTECTED]>
> Cc: talk@openstreetmap.org
> Message-ID: <[EMAIL PROTECTED]>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> Hi Bob,
> 
> Use the information on the ground. You will usually find signs welcoming
> you to the new area. It may be a few hundred metres either side, so look
> for the change in tar quality. You may also find that bin mapping is an
> option since the council often puts their name on the bins. (In Ireland
> you need to do bin mapping to get the names of the streets, rather than
> the boundaries).

Old (NPE) OS mapping is good. I was amazed to find how little of the county
boundary had changed in the past 50 years. I would use local knowledge and a
variety of current (possibly copyright) sources to see if the old OS maps
were still current and then digitise off the old maps. For my county the
majority of the boundary was along rivers anyway (which I also entered from
old OS (NPE) maps.

The borough boundary however defeated me; It has changed considerably and
for the majority doesn't follow any recognisable features on the ground so I
don't have any usable source for that at the moment and have left it alone.

It is possible that where it is not clear that it doesn't really matter much
anyway (certainly not 200 meters either way), and that where it is in urban
areas one should be able to get it on or between the appropriate roads. I
might return to the borough boundary some time and have another go. I might
ask a borough councillor to draw the boundary on my paper map and then
transcribe it.


Regards,



Peter

> 
> Shaun
> 
> Bob Hawkins wrote:
> > I wonder from where most people obtain their administrative boundaries
> > to digitise for OSM?  The most prevalent source is Ordnance Survey,
> > but that current data is copyrighted, of course.  I am particularly
> > interested in civil parish boundaries, then in local authority
> > boundaries to build up areas of interest and coverage.  Can anyone help?
> >
> > With regards,
> >
> > Bob Hawkins
> > 



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Re: [OSM-talk] Administrative boundaries (UK)

2008-08-25 Thread Andy Robinson (blackadder-lists)
Peter Miller wrote:
>Sent: 25 August 2008 7:26 PM
>To: talk@openstreetmap.org
>Subject: Re: [OSM-talk] Administrative boundaries (UK)
>
>> From: Shaun McDonald <[EMAIL PROTECTED]>
>> Subject: Re: [OSM-talk] Administrative boundaries (UK)
>> To: Bob Hawkins <[EMAIL PROTECTED]>
>> Cc: talk@openstreetmap.org
>> Message-ID: <[EMAIL PROTECTED]>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Hi Bob,
>>
>> Use the information on the ground. You will usually find signs welcoming
>> you to the new area. It may be a few hundred metres either side, so look
>> for the change in tar quality. You may also find that bin mapping is an
>> option since the council often puts their name on the bins. (In Ireland
>> you need to do bin mapping to get the names of the streets, rather than
>> the boundaries).
>
>Old (NPE) OS mapping is good. I was amazed to find how little of the county
>boundary had changed in the past 50 years. I would use local knowledge and
>a
>variety of current (possibly copyright) sources to see if the old OS maps
>were still current and then digitise off the old maps. For my county the
>majority of the boundary was along rivers anyway (which I also entered from
>old OS (NPE) maps.

Agreed, except it tends to break down for the big urban centres where the
original county boundaries made way for the metropolitan districts. I can
bring the county boundaries into Birmingham from NPE very easily but
defining the boundaries within the urban area for Birmingham, Sandwell,
Walsall, Solihull etc needs the bin and recycle box approach, which I have
to say works remarkably well.

Cheers

Andy

>
>The borough boundary however defeated me; It has changed considerably and
>for the majority doesn't follow any recognisable features on the ground so
>I
>don't have any usable source for that at the moment and have left it alone.
>
>It is possible that where it is not clear that it doesn't really matter
>much
>anyway (certainly not 200 meters either way), and that where it is in urban
>areas one should be able to get it on or between the appropriate roads. I
>might return to the borough boundary some time and have another go. I might
>ask a borough councillor to draw the boundary on my paper map and then
>transcribe it.
>
>
>Regards,
>
>
>
>Peter
>
>>
>> Shaun
>>
>> Bob Hawkins wrote:
>> > I wonder from where most people obtain their administrative boundaries
>> > to digitise for OSM?  The most prevalent source is Ordnance Survey,
>> > but that current data is copyrighted, of course.  I am particularly
>> > interested in civil parish boundaries, then in local authority
>> > boundaries to build up areas of interest and coverage.  Can anyone
>help?
>> >
>> > With regards,
>> >
>> > Bob Hawkins
>> > ---
>-
>
>
>
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Re: [OSM-talk] Administrative boundaries (UK)

2008-08-25 Thread graham
Bob Hawkins wrote:
> 
> I wonder from where most people obtain their administrative boundaries 
> to digitise for OSM?  

In my council the council puts its name and the old parish name (no 
longer existing formally) on street signs. Elsewhere you're stuck with 
common knowledge (eg the boundary goes along the river) or out of 
copyright maps with a lot of double checking on historical changes 
(abolition/merging of areas etc - where that hasn't happened boundaries 
seem to stay pretty stable).

Graham

The most prevalent source is Ordnance Survey, but
> that current data is copyrighted, of course.  I am particularly 
> interested in civil parish boundaries, then in local authority 
> boundaries to build up areas of interest and coverage.  Can anyone help?
>  
> With regards,
>  
> Bob Hawkins
> 
> 
> 
> 
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