Paul,
NPE maps were the first backgrounds for the editors other than some quite low
res Yahoo imagery of the UK, so people used them for mapping
streams/rivers/woods etc back in the day. As you have noticed, they don’t
necessarily relate to modern streams – they may have dried up or been
On Sunday 06 October 2013, Paul Churchley wrote:
I have come across some data tagged as source=npe. I know what the NPE maps
are but my question is a bit of a newbies one... why is NPE data mapped on
OSM if it is so old?
For a while it was the best we had. But that was some time ago. (2008?)
Barnett, Phillip wrote:
NPE maps were the first backgrounds for the editors other than some quite low
res Yahoo imagery of the UK, so people used them for mapping
streams/rivers/woods etc back in the day. As you have noticed, they don’t
necessarily relate to modern streams – they may have dried
In general waterways mapped with NPE will be rather inaccurate. It is more
likely that this stream still exists but is perhaps as much has 200 metres
away. Masses of persistent features (notably streams, but also major roads
etc) were mapped from NPE maps upto around 2010 when OS OpenData and Bing
I tend to see an NPE tag as something that needs attention. A lot of the
area, where I now live, North Shropshire, was armchair mapped using NPE
maps. That includes a lot of roads, I am getting through resurveying
them but even today I found one that according to my GPS was 50m from
where it
+1
-Original Message-
From: Philip Barnes [mailto:p...@trigpoint.me.uk]
Sent: 06 October 2013 18:42
To: talk-gb@openstreetmap.org
Subject: Re: [Talk-GB] NPE data
I tend to see an NPE tag as something that needs attention. A lot of
the area, where I now live, North Shropshire,
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